201 results on '"Atherinopsidae"'
Search Results
2. Sex reversal of pejerrey (Odontesthes bonariensis), a species with temperature‐dependent sex determination, in a seminatural environment.
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del Fresno, Pamela S., Garcia de Souza, Javier R., Colautti, Darío C., Yamamoto, Yoji, Yokota, Masashi, Strüssmann, Carlos A., and Miranda, Leandro A.
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TEMPERATURE-dependent sex determination , *SEX reversal , *SPAWNING , *SEX (Biology) , *SEX determination , *SPECIES , *GONADS - Abstract
This study examined the changes in sex ratios and sex reversal rates in pejerrey Odontesthes bonariensis that occur with the progression of the spawning season in a seminatural setting. Four groups of hatchery‐produced pejerrey larvae were stocked in floating cages in La Salada de Monasterio lake (Pampas region), a natural habitat of this species, and reared from hatching beyond gonadal sex determination with minimum human interference. Cage 1 was stocked at the beginning of the spring spawning season and the other cages were stocked with monthly delays until cage 4 in early summer. The genotypic (amhy+, XY/YY; amhy−, XX) and phenotypic (testis, male; ovary, female) sex ratios and proportions of genotype/phenotype mismatched individuals were estimated and their relation to water temperature and daylength during the experiment was analysed by generalized linear modelling. Water temperature varied between 11 and 30.5°C, and daylength duration between 11 h 22 min and 14 h 35 min. Sex genotyping revealed nearly balanced sex ratios of XY/YY (46%–49.1%) and XX (50.9%–54%) fish in cages 2–4 whereas the genotypic sex ratio in cage 1 was clearly biased towards XY/YY fish (60.6%). Phenotypic males ranged from 42% to 54.4% in cages 1–3. Cage 4, in turn, had significantly more phenotypic males (66%). The percentage of XX males (phenotypic male/genotypic female) was 23.1% in cage 1, decreased to a minimum of 5.4% in cage 2 and gradually increased in cages 3 and 4 to a maximum of 40.7% in the latter. The percentages of XY/YY females (phenotypic female/genotypic male) were highest in cage 1 (30%) and decreased progressively in the other cages to a significantly lower value (4.3%) in cage 4. These results generally support the findings of laboratory studies on the effect of temperature on the sex determination of this species and also provide novel evidence of a XX genotype‐specific masculinizing effect of short daylength. [ABSTRACT FROM AUTHOR]
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- 2023
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3. Gonadal development in a landlocked population of pejerrey fish Odontesthes argentinensis during spawning season in relation to sex steroids and water temperature.
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del Fresno, Pamela Sabrina, Colautti, Darío César, Berasain, Gustavo Emilio, and Miranda, Leandro Andrés
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SPRING , *STEROIDS , *SEASONS , *FISH spawning , *SALT lakes , *ESTRADIOL , *EFFECT of temperature on fishes , *WATER temperature - Abstract
The relationship between water temperature and gonadal maturation of a landlocked ecophenotype of marine pejerrey (Odontesthes argentinensis) in La Salada de Pedro Luro lake was analysed during three spawning seasons. Mainly vitellogenic females were found in August (winter), some ovulating in October (mid-spring) and with atretic oocytes in December (end of spring). In accordance with this, gonadosomatic index (GSI) and estradiol plasma levels showed maximum values in October (7.6 ± 0.7%; 1631.7 ± 256.1 pg/mL) and minimum values in December (1.2 ± 0.3%; 230,33 ± 8,74 pg/mL). Spermiating males were found during the whole spawning season and only arrested in December. The highest GSI values were recorded in October (4.6 ± 0.2%) and for testosterone (T) in August (1113.2 ± 503.8 pg/mL). Meanwhile, in December the minimum GSI and T plasma values (1.3 ± 0.6%, 323.8 ± 5.3 pg/mL) were observed. According to the Fourier fitted models, temperature explains more than 70% of the observed variation in GSI in both sexes. Moreover, the total GSI variation range was positively related to the total temperature range variation experienced during the reproductive seasons demonstrating the influence of this environmental variable on maturation intensity and dynamics. [ABSTRACT FROM AUTHOR]
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- 2022
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4. Gonadal development in pejerrey (Odontesthes bonariensis) during spawning season in relation with sex steroids and temperature variation in Gómez lake (Pampas region, Argentina)
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PAMELA S. DEL FRESNO, DARÍO C. COLAUTTI, GUSTAVO E. BERASAIN, and LEANDRO A. MIRANDA
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Atherinopsidae ,environment cues ,estradiol ,reproduction ,shallow lake ,testosterone ,Science - Abstract
Abstract Gómez lake (34 ° 39 ‘S 61 ° 01’ W) is a typical shallow lake of Pampas region placed in the upper area of the Salado river. The most abundant fish species in this lake is the pejerrey (Odontesthes bonariensis) valued due to the quality of its flesh and its attractiveness as a game fish. The aim of this study was to describe for the first time in this pejerrey wild population the gonadal stages during three consecutive spawning seasons (August to December) in relation with sexual steroids and temperature in this lake. In general, pejerrey gonadal development, the gonadosomatic index and the plasma levels of estradiol and testosterone varied in relation to air temperature. During the sampling period, pejerrey females started to ovulate in early August (winter), with a peak in October and ending in December with some of them with atretic oocytes. For males, it was possible to find spermiating animals during the whole spawning season and some arrested animals only in December. Our results confirm the relationship with pejerrey maturation and temperature and can be useful for decision making in the management of this natural resource.
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- 2021
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5. Trade‐offs between ontogenetic changes and food consumption in Brazilian silverside Atherinella brasiliensis from two tropical estuaries.
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Júnior, Alexandre da Gama Fernandes Vieira, Lima, Diele Emele Pontes Carvalho, Santos Sales, Natalice, Freitas Terra, Bianca, and Pessanha, André
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ESTUARIES , *FOOD consumption , *GEOGRAPHICAL distribution of fishes , *CALANOIDA , *STOMACH , *CERATOPOGONIDAE - Abstract
Salinity variation in estuarine environments influences the distribution of fish species as well as the availability of food resources to be used by them. This study examines the effect of the range of salinity on the trade‐off between growth and feeding intensity of Atherinella brasiliensis from two tropical estuaries (positive and hypersaline). To investigate the effects of salinity, we hypothesized that hypersalinity negatively affects foraging intensity, consumption and prey selection by the Brazilian silverside, leading to differences in body condition. Sampling was carried out using the beach seine method in two areas of the estuaries (upper and lower zone) during rainy and dry periods. A total of 2549 stomachs (1124 for the positive estuary and 1425 for the hypersaline estuary) were examined, and the results indicated a dissimilarity of 92.7% of the diet between environments. In the positive estuary, there was more predation on Calanoida, Gastropoda, Hymenoptera, Ceratopogonidae larvae and Decapoda larvae, while Alga and plant‐material characterized the diet in the hypersaline estuary. Significant correlations between the volume of food and salinity were observed in both estuaries. The vacuity index indicated that hypersaline environments presented higher contributions of semifull stomachs, indicating an intense consumption of algae. On the other hand,in the positive estuary, these values were less intense, but the stomachs were always with animal items. The variation found for both environments reinforces the effect of salinity on the physiological mechanism of the populations once the higher proportions of filled stomachs in the hypersaline environment indicate the need for constant and high ingestion of prey to guarantee the pronounced energy expenditure with osmoregulation. [ABSTRACT FROM AUTHOR]
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- 2021
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6. Metazoan parasites of the California grunion Leuresthes tenuis and other New World silversides
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Passarelli, Bruno
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Biology ,Parasitology ,Ecology ,Atherinopsidae ,Caligidae ,grunion ,parasites - Abstract
Parasitism is one the most common lifestyles on earth. Parasites are important components of virtually all ecological communities and parasite research can help to elucidate many aspects of the ecology of their hosts. This dissertation focused on studying the metazoan parasites of the California grunion, Leuresthes tenuis and other fish hosts in the family Atherinopsidae. In Chapter 1, the metazoan parasites of L. tenuis were investigated at five localities in southern California. A total of 2,902 parasites belonging to 26 taxa were recovered from 900 specimens of L. tenuis collected between 2016 and 2018. Comparisons of parasite communities showed that the parasite fauna of L. tenuis varied among localities. This variation suggests that L. tenuis may stay relatively close to their spawning grounds throughout their lives. In Chapter 2, a redescription is provided of the parasitic copepod Caligus olsoni, associated with L. tenuis and other fishes in the northeast Pacific. Caligus olsoni was morphologically compared to another species, Caligus serratus. In light of the morphological similarities observed between these two species, we propose to treat C. serratus as a junior subjective synonym of C. olsoni. Based on previous reports, C. olsoni appeared to be highly host-specific. However, with the proposed synonymy of C. olsoni and C. serratus, C. olsoni has, in fact, low host specificity, with 16 fish host species currently reported from 12 families. In Chapter 3, the parasite communities of L. tenuis and three other host species in the family Atherinopsidae were compared. A total of 5,677 parasites from 25 taxa were recovered from the four host species. The results showed significant differences in parasite communities in relation to host species. The three most abundant parasite taxa found in this study, which combined accounted for more than 78% of the total number of parasites recovered, were associated with two of the host species. Differences in parasite communities may be explained by variations in diet and feeding strategies among the hosts species investigated.
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- 2021
7. Effects of metals on sperm quality, fertilization and hatching rates, and embryo and larval survival of pejerrey fish (Odontesthes bonariensis).
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Gárriz, Ángela and Miranda, Leandro A.
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WATER pollution ,EMBRYOS ,METALS ,BODIES of water ,POLLUTION ,FISH breeding ,SPERMATOZOA - Abstract
Some species of fish have been used as bioindicators of aquatic environmental pollution all over the world. Pejerrey (Odontesthes bonariensis) was selected for the current study due to its sensitivity to pollutants and because is one of the emblematic fish species that inhabits shallow lakes of the Pampa region (Argentina). Recently, in Chascomús lake were recorded concentrations of Cd, Cr, Cu and Zn with values above the Argentine National Guidelines for the Protection of the Aquatic life. Regarding this, the aim of the present study was to investigate the effects of environmental concentrations of these metals on the sperm quality, fertilization and hatching rates, and embryo and larval survival of pejerrey. Also, the same endpoints were analyzed with concentrations ten times higher to simulate a polluted worst-case scenario. The results showed that the presence of some metals in aquatic environments reduced pejerrey sperm motility (in ~50%) and velocity (in ~30%). These results were obtained using a computer assisted sperm analyzer enforcing the application of this analysis as a tool or bioindicator of aquatic pollution. In addition, fertilization rate was diminished (in ~40%) for all treatments. Besides, the hatching rate, and embryo and larval survival were drastically affected being zero for the highest metal concentrations assessed. All together these results, showed that even lower metal concentrations can negatively affect different reproductive parameters of one of the most emblematic fish species of the Argentinean water bodies. [ABSTRACT FROM AUTHOR]
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- 2020
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8. Evidence of a landlocked reproducing population of the marine pejerrey Odontesthes argentinensis (Actinopterygii; Atherinopsidae).
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Colautti, Darío C., Miranda, Leandro, Gonzalez‐Castro, Mariano, Villanova, Vanina, Strüssmann, Carlos A., Mancini, Miguel, Maiztegui, Tomas, Berasain, Gustavo, Hattori, Ricardo, Grosman, Fabian, Sanzano, Pablo, Lozano, Ismael, Vegh, Sabina L., Salinas, Victor, Del Ponti, Omar, Fresno, Pamela, Minotti, Priscila, Yamamoto, Yoji, and Baigún, Claudio R. M.
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ESTUARINE ecology , *ACTINOPTERYGII , *PHYSIOLOGICAL adaptation , *WATERSHEDS , *GENETIC techniques , *GREEN movement , *ESTUARIES , *MOUNTAIN soils , *MORPHOMETRICS - Abstract
In South America, the order Atheriniformes includes the monophyletic genus Odontesthes with 20 species that inhabit freshwater, estuarine and coastal environments. Pejerrey Odontesthes argentinensis is widely distributed in coastal and estuarine areas of the Atlantic Ocean and is known to foray into estuaries of river systems, particularly in conditions of elevated salinity. However, to our knowledge, a landlocked self‐sustaining population has never been recorded. In this study, we examined the pejerrey population of Salada de Pedro Luro Lake (south‐east of Buenos Aires Province, Argentina) to clarify its taxonomic identity. An integrative taxonomic analysis based on traditional meristic, landmark‐based morphometrics and genetic techniques suggests that the Salada de Pedro Luro pejerrey population represents a novel case of physiological and morphological adaptation of a marine pejerrey species to a landlocked environment and emphasises the environmental plasticity of this group of fishes. [ABSTRACT FROM AUTHOR]
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- 2020
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9. Charales: ¿Qué afecta su sobrevivencia?
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Navarrete Salgado, Norma Angélica, Jacobo Segura, Dulce Liliana, Navarrete Salgado, Norma Angélica, and Jacobo Segura, Dulce Liliana
- Abstract
¿Conoces los charales, alguna vez has escuchado hablar de ellos? Bueno, son pequeños peces de la familia Atherinopsidae, tienen importancia biológica, cultural, económica y alimentaria. Estos amiguitos se caracterizan por presentar una banda plateada a lo largo del cuerpo y en términos de distribución se les encuentra en el centro de la República Mexicana principalmente en los estados de Jalisco, Michoacán y Estado de México.
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- 2023
10. Effects of heavy metals identified in Chascomús shallow lake on the endocrine-reproductive axis of pejerrey fish (Odontesthes bonariensis).
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Gárriz, Ángela, del Fresno, Pamela S., Carriquiriborde, Pedro, and Miranda, Leandro A.
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HEAVY metals , *HEAVY metal toxicology , *GONADOTROPIN , *CYANOBACTERIAL toxins , *FISHES - Abstract
Highlights • Cd, Cr, Cu, Pb and Zn concentrations identified in Chascomús Lake were above the Argentine Law. • Heavy metal exposure alters the expression of some pejerrey key reproductive genes. • Structural damages were observed in pejerrey gonads under heavy metals exposures. • Cd exposure provoked testis-ova in pejerrey fish. Abstract Some heavy metals related to human activities were measured in the water of Chascomús lake. The maximum concentrations were: 0.23 μg/L for Cd, 4.28 μg/L for Cr, 22.09 μg/L for Cu, 2.49 μg/L for Ni, 3.24 μg/L for Pb and 210.76 μg/L for Zn. The values of Cd, Cr, Cr, Pb and Zn were above the Argentine National Guidelines for the Protection of the Aquatic life. The analysis of gonadal condition of pejerrey fish (Odontesthes bonariensis) from this lake did not revealed any reproductive damages. However, exposures with environmental concentrations of Cd, Cr, Cu and Zn under laboratory conditions of pejerrey males (14 days), caused a significant increase of the expression of the three variants of gnrh in the brain (within Cd exposure) and a decrease in cyp19a1b mRNA (within Cu exposure). Furthermore, at pituitary level, a decrease in fshb transcript levels was observed in the fish exposed to Cd and Cr and a decrease in the expression of both gonadotropin receptors at gonadal level in Zn exposure. Moreover, the gonads of the fish exposed to all the tested metals suffered structural damages showing shortness of the spermatic lobules, fibrosis, testis ova and the presence of piknotic cells. All these findings alert that heavy metals pollution affects the expression of key reproductive genes and gonadal structure of fish species that represent the predominant group of organisms and are considered sentinel species in the aquatic ecosystems. [ABSTRACT FROM AUTHOR]
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- 2019
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11. The beach‐spawning California grunion Leuresthes tenuis eats and digests conspecific eggs.
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Santos, Allison J., Frederick, Alyssa R., Higgins, Benjamin A., Carrillo, Andres, Carter, Ariel L., Dickson, Kathryn A., German, Donovan P., and Horn, Michael H.
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ATHERINOPSIDAE , *CALIFORNIA grunion , *CANNIBALISM , *DIGESTIVE enzymes , *SPAWNING - Abstract
Apparent egg cannibalism was investigated in the beach‐spawning California grunion Leuresthes tenuis. Three hypotheses were tested to determine whether L. tenuis regularly consumes and efficiently digests conspecific eggs. First, examination of the gut contents of adults collected at four spawning sites over two seasons showed that the intestines of most fish from all the sites (57–87%, n ≥ 30, each site) contained L. tenuis eggs. The two other hypotheses focused on digestion of the eggs. First, the force required to crush cannibalized eggs was significantly less than that for uncannibalized eggs (fertilized or unfertilized), indicating that ingestion weakens the egg chorions. Second, conspecific eggs fed to fish held in the laboratory visibly degraded as they passed through the gut. The eggs lost c. half of their protein content and about two‐thirds of their lipid content as they passed from proximal to distal regions of the gut, indicating that digestion occurred. Digestive enzyme activities of the gut further confirmed that L. tenuis can break down the contents of ingested eggs. Trypsin activity decreased and aminopeptidase activity increased posteriorly along the gut, whereas amylase and lipase activities exhibited less clear patterns by gut region. As far as is known, this study is the first to show that L. tenuis is an egg cannibal. [ABSTRACT FROM AUTHOR]
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- 2018
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12. Experimental evidence of masculinization by continuous illumination in a temperature sex determination teleost (Atherinopsidae) model: is oxidative stress involved?
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Corona‐Herrera, Guillermo A., Arranz, Silvia E., Martínez‐Palacios, Carlos A., Navarrete‐Ramírez, Pamela, Toledo‐Cuevas, Elva M., Valdez‐Alarcón, Juan J., and Martínez‐Chávez, Carlos C.
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ATHERINOPSIDAE , *OXIDATIVE stress , *CHIROSTOMA , *PHOTOPERIODISM , *FISHES , *GENETIC sex determination , *TEMPERATURE-dependent sex determination - Abstract
The present study evaluates the influence of continuous light on phenotypic sex ratios in Chirostoma estor, a temperature sex determination animal model. Relative gene expression levels of 5 day old larvae were performed on two early gonad differentiation genes (sox9 and foxl2), two stress axis activation genes (gcr1 and crf) and four reactive oxygen species (ROS) antagonist effector genes (sod2, ucp2, gsr and cat). Two light treatments were applied from fertilization; control (12L:12D) simulated natural photoperiod and a continuous illumination photoperiod. By the end of the trial (12 weeks after hatching), differentiated and normal gonads were clearly identifiable in both treatments by histological observations. Regarding sex ratio, 73% of phenotypic males were found in continuous illumination compared with 40% in controls. Consistently, the sox9 gene (involved in early testis differentiation) showed an over expression in 64% of the individual larvae analysed compared with foxl2 (ovarian differentiation) suggesting a masculinization tendency in continuous illumination. On the other hand, only 36% of individuals showed the same tendency in the control treatment consistent with phenotypic sex ratios found under normal culture conditions. Relative gene expression results did not show significant difference in sod2, ucp2 and gcr1 levels, but cat, gsr and crf showed significantly higher expression levels in the continuous illumination treatment suggesting that both, the stress axis and ROS response mechanisms were activated at this time. This study suggests, a link between continuous light, oxidative stress and environmental sex determination in vertebrates. However, further research is necessary to describe this possible upstream mechanism that may drive some aspects of sexual plasticity in vertebrates. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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13. Speciation of silverside Chirostoma attenuatum (Pisces: Atheriniformes) in Central Mexico.
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Betancourt‐Resendes, Isaí, Pérez‐Rodríguez, Rodolfo, and Domínguez‐Domínguez, Omar
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CHIROSTOMA , *ATHERINIFORMES , *FRESHWATER animals , *FRESHWATER habitats , *FRESHWATER ecology - Abstract
Abstract: The high speciation rate of Chirostoma in Central Mexico has been associated with allopatric speciation events promoted by the emergence of vicariant barriers in freshwater habitats, as well as by sympatric ecological segregation, common in those species inhabiting lacustrine ecosystems. Through nuclear and mitochondrial markers, this study revealed a speciation process within Chirostoma attenuatum resulting in two evolutionary independent units that coincide with their morphological differentiation, indicating that Chirostoma attenuatum and Chirostoma zirahuen may be considered separate species. This process was the result of vicariance associated with geological dynamics of the region. Phylogeographic findings indicated two speciation stages: early allopatric isolation, during which the isolated populations accumulated unique adaptations, and secondary contact with low migration rate and the maintenance of the evolutionary trajectory. Historical demographic analysis indicated that the two well‐differentiated lineages underwent independent evolutionary histories in their respective lakes. Chirostoma zirahuen from Zirahuen and C. attenuatum from Patzcuaro represent unique and irreplaceable genetic diversity that must to be conserved. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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14. Sexual Dimorphism in Pelvic Fin Length of Two Endangered Freshwater Atherinopsid Species with High Aquaculture Potential.
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Martínez‐Chávez, C. Cristian, Alarcón‐Silva, Eugenia M., Martínez‐Palacios, Carlos A., Navarrete‐Ramírez, Pamela, Raggi, Luciana, Corona‐Herrera, Guillermo A., López García, Jesús, Strüssmann, Carlos A., and Ross, Lindsay G.
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RARE fishes ,SEXUAL dimorphism ,ATHERINOPSIDAE ,BROOD stock assessment ,FISHES - Abstract
Abstract: The endemic Mexican silversides of Lake Pátzcuaro (Pike Silverside Chirostoma estor) and Lake Chapala (Blacknose Silverside C. promelas) are endangered fish species of great socioeconomic importance in the region. Since the last decade, much progress has been made to close the life cycle in captivity and in promoting the aquaculture of these species. The lack of standardized husbandry and broodstock management practices, including sex discrimination, is a bottleneck to the commercial culture of these species. Recent observations have suggested a possible difference between the length of the pelvic fins of males and females. To explore these observations, biometric measurements were taken from Pike Silverside and Blacknose Silverside broodstocks, comprising body weight, SL, distance from the base of the pelvic fin to the genital pore (BPF), and distance from the tip of pelvic fin to the genital pore (TPF). The latter measurements were used to calculate the TPF/BPF ratio. Sex‐specific differences were found in BPF, TPF, and TPF/BPF for both species, clearly indicating a sexually dimorphic characteristic not previously reported in any atherinopsid. This study reveals for the first time the presence of a noticeable sexually dimorphic and externally evident trait in two closely related atherinopsid species, which provides a simple morphometric technique for sex discrimination that minimizes manipulation and thus avoids overstressing or killing the fish. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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15. Do the shallow‐water habitats of a hypersaline tropical estuary act as nursery grounds for fishes?
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Sales, Natalice dos Santos, Baeta, Alexandra Sofia Baptista Vicente, de Lima, Lidiane Gomes, and Pessanha, André Luiz Machado
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ESTUARINE fishes , *FISH habitats , *ATHERINOPSIDAE , *ESTUARINE health , *SALINITY - Abstract
Abstract: Fish assemblages were studied in a hypersaline tropical estuary in Northeastern Brazil. A total of 104 species were collected by beach seine during the dry and rainy seasons of 2012. Two families, Atherinopsidae and Gerreidae, were numerically dominant in all zones of the estuary; juveniles of
Atherinella brasiliensis ,Eucinostomus argenteus ,Lile piquitinga ,Ulaema lefroyi ,Lutjanus analis andSphoeroides greeleyi contributed 77% of the total catch. The factors that best explained the fish abundance pattern were salinity and depth, which were related to spatial segregation. Species richness was lowest in the upper zone, an area with high salinity and shallow depth. The distinct roles of structurally different habitats (submerged macrophyte beds and mangrove prop‐roots) and the influence of physicochemical conditions in the middle zone of the estuary may influence taxonomic diversity. The middle zone of the estuary is the one most attractive to juveniles of reef species (Lutjanidae and Serranidae). The fish assemblages are clearly dominated by marine estuarine dependent species, highlighting the importance of the ecosystem as a nursery ground for marine species of the Brazilian coast. [ABSTRACT FROM AUTHOR]- Published
- 2018
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16. Comparative Analysis of Pejerrey Fish (Odontesthes bonariensis) Gonadal Development During Two Consecutive Spawning Seasons in Relation to Sex Steroids and Temperature Variation in Cochicó Lake (Pampas Region, Argentina)
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Leandro Andrés Miranda, Darío César Colautti, Gustavo E. Berasain, and Pamela Sabrina del Fresno
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media_common.quotation_subject ,PAMPAS LAKES ,Zoology ,Aquatic Science ,Biology ,CLIMATE ,purl.org/becyt/ford/1 [https] ,Odontesthes bonariensis ,REPRODUCTION ,ATHERINOPSIDAE ,%22">Fish ,Animal Science and Zoology ,Reproduction ,Development of the gonads ,purl.org/becyt/ford/1.6 [https] ,SEX HORMONES ,TESTIS-OVA ,media_common - Abstract
Cochicó belongs to “Encadenadas del Oeste” system of lakes being a typical water body of the Pampas region. The most abundant fish species in this lake is the pejerrey (Odontesthes bonariensis) valued due to the quality of its flesh and as a game fish. The aim of this study was to compare the gonadal stages of pejerrey during two consecutive spawning seasons (August to December) in relation to sexual steroids and temperature in this lake. In general, pejerrey gonadal development, the Gonadosomatic index and the plasma levels of estradiol and testosterone fluctuated in relation with temperature. In 2014 samplings, females started to ovulating in early August, with a peak during September-October and ending in December with many of them with atretic oocytes. However, in 2015, a marked delay in maturation was observed with ovulated fish only in October and December. This fact may be because the minors mean temperatures recorded in this year. For males, it was possible to find spermiating animals during the whole spawning season and only arrested animals in December. Unexpectedly, histological gonadal analysis revealed for the first time pejerrey with testis-ova, probably due to the intensive use of agrochemicals in this region. Fil: del Fresno, Pamela Sabrina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas; Argentina Fil: Colautti, Dario César. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina Fil: Berasain, Gustavo Emilio. Ministerio de Desarrollo Agrario de la Provincia de Buenos Aires; Argentina Fil: Miranda, Leandro Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas; Argentina
- Published
- 2021
17. Genetic population structure and evidence of genetic homogeneity in populations of the Argentinian silverside Odontesthes bonariensis (Teleostei: Atherinopsidae) inhabiting central and northwestern Argentina.
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Valencia, Evelyn, Veliz, David, Tombari, Andrea, and Vega-Retter, Caren
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HOMOGENEITY , *ODONTESTHES bonariensis , *ATHERINOPSIDAE , *OSTEICHTHYES , *FISHING - Abstract
The study of species in their native geographic ranges is key to understanding how human activity has influenced spatial fragmentation or species homogenization. The Argentinian silverside Odontesthes bonariensis, of interest for aquiculture and sport fishing, is a relevant subject of study. The species has been introduced in a number of countries and re-introduced in some areas of Argentina with unknown effects. The objectives of this study were to determine the population structure, genetic diversity (GD) and effective population sizes (Ne) of O. bonariensis in Argentina. Six microsatellite loci were amplified in individuals collected from four water bodies affected by commercial and sport fishing: Cabra Corral Reservoir (CC), Chascomús Lake (CH), Chasicó Lake (LCH) and the Río de la Plata (RLP). Three genetic groups were detected: one in CC, one in RLP and the last inhabiting CH and LCH. Interestingly, CH and LCH are located 768 km apart, but showed no difference in allele frequencies; suggesting the introduction of individuals from CH into LCH. The largest allele richness, GD and Ne were found in RLP indicating that the largest population of O. bonariensis may be found in this area. Current Ne were lower than historical Ne in all areas, suggesting a change in the GD over time. This study provides information on the genetic structure and genetic diversity of O. bonariensis across its native distribution and over time, demonstrating the first evidence of a possible genetic homogenization in this species probably linked to human activities. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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18. Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil.
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Guazzelli Gonzalez, Júlio and Vaske Júnior, Teodoro
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ANIMAL feeding behavior ,ATHERINOPSIDAE ,PREDATION ,PREDATORY animals ,BEACHES - Abstract
Copyright of Brazilian Journal of Oceanography is the property of Instituto Oceanografico da Universidade de Sao Paulo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
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19. Length-weight relation and diet composition of Poblana letholepis, an endemic species from Central Mexico.
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Valero-Pacheco, Elizabeth, Abarca-Arenas, Luis Gerardo, Condado-Salazar, Brayan, and Franco-López, Jonathan
- Subjects
SILVERSIDES ,INGESTION - Abstract
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- 2016
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20. Early morphological variation and induction of phenotypic plasticity in Patagonian pejerrey
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Sonia A. Crichigno, Miguel A. Battini, and Víctor E. Cussac
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Atherinopsidae ,Development ,Feeding ,Morphometry ,Odontesthes hatcheri ,Zoology ,QL1-991 - Abstract
The aim of this work was to study two aspects of phenotypic plasticity in the Patagonian pejerrey Odontesthes hatcheri (Teleostei: Atherinopsidae) the dependence of the early morphology on developmental time and temperature, and the induction of morphological changes by controlled feeding in juveniles. Newly hatched free embryos, incubated at two different temperatures (13 and 18oC), and juveniles were used for the study and induction of phenotypic plasticity. Body and head shapes were analyzed with geometric morphometrics and linear measurements. Our results showed that shape variation at hatching was related to the bending of the embryo head on the yolk sac, increasing the head-trunk angle due to progressive straightening of the embryo. The head-trunk angle was related with temperature at incubation, with embryos incubated at higher temperature being more bent. Embryos that hatched earlier had bigger yolk sacs than those that hatched later. In juveniles, controlled feeding experiments added new morphological variation to that of wild juveniles. In all comparisons, the slenderness of the head, the size of premaxilla and jaw, and the position of the eye showed an enlarged variation due to controlled feeding. These results will contribute to comprehending the complexity of the morphological variation of O. hatcheri.O objetivo deste trabalho foi estudar a variação morfológica e plasticidade fenotípica do peixe-rei da Patagônia Odontesthes hatcheri (Teleostei: Atherinopsidae), a dependência da morfologia inicial no tempo de desenvolvimento e temperatura, e a indução de alterações morfológicas pela alimentação controlada em juvenis. Embriões recém-nascidos, incubados a duas temperaturas diferentes (13 e 18oC) e juvenis foram utilizados para o estudo de indução de plasticidade fenotípica. Formas do corpo e cabeça foram analisadas com técnicas de morfometria geométrica e medições lineares. Os nossos resultados mostraram que a variação da forma no nascimento foi relacionada com a curvatura da cabeça do embrião no saco vitelino, aumentando o ângulo de cabeça-tronco devido ao endireitamento progressivo do embrião. O ângulo da cabeça-tronco relacionou-se com a temperatura de incubação, com os embriões incubados na temperatura elevada sendo mais curvados. Os embriões que eclodiram mais cedo tinham sacos vitelinos maiores do que aqueles que eclodiram tardiamente. Em juvenis, os experimentos de alimentação controlada adicionaram nova variação morfológica àquela dos juvenis selvagens. Em todas as comparações, a espessura da cabeça, o tamanho da pré-maxila e mandíbula, e a posição do olho mostraram uma maior variação devido à alimentação controlada. Estes resultados irão contribuir para a compreensão da complexidade da variação morfológica de O. hatcheri.
- Published
- 2012
21. Atherinella milleri
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Angulo, Arturo
- Subjects
Atheriniformes ,Actinopterygii ,Atherinopsidae ,Atherinella milleri ,Animalia ,Atherinella ,Biodiversity ,Chordata ,Taxonomy - Abstract
Atherinella milleri (Bussing, 1979). Miller���s Silverside; Pejerrey de Miller. Distribution: Global: Western Atlantic Ocean; from northern Honduras to Colombia; entering estuaries and littoral lagoons and ascending river courses; Costa Rica: LN, RF, SJ, SC, Sa, To, Pa, Ma and Si (Atlantic), 0��� 40 m.a.s.l., Per, Dia. Occurrence and conservation status: Nat, LC. References: Bussing (1979b: 395; detailed description, including illustrations, information on distribution and ecology; 1987: 160, as Melaniris milleri ���synonym; 1998: 243; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology), Angulo et al. (2013: 995; listed, including taxonomic information and distributional data) and Robertson & Van Tassell (2019: 3235; detailed description, including illustrations, information on distribution, with a map, and ecology)., Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 52, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630, {"references":["Bussing, W. A. (1979 b) Taxonomic status of the atherinid fish genus Melaniris in lower Central America, with the description of three new species. Revista de Biologia Tropical, 26 (2), 391 - 413.","Robertson, D. R. & Van Tassell, J. (2019) Shorefishes of the Greater Caribbean: online information system. Version 2.0 Smithsonian Tropical Research Institute, Balboa, Panama. Available from: https: // biogeodb. stri. si. edu / caribbean / en / pages (accessed 27 August 2021)."]}
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- 2021
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22. Atherinella blackburni
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Angulo, Arturo
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Atheriniformes ,Actinopterygii ,Atherinopsidae ,Animalia ,Atherinella blackburni ,Atherinella ,Biodiversity ,Chordata ,Taxonomy - Abstract
Atherinella blackburni (Schultz, 1949). Beach Silverside; Tin��calo. Distribution: Global: Western Atlantic Ocean; from Quintana Roo, Mexico, to northern Brazil entering estuaries and littoral lagoons and ascending river courses; Costa Rica: To (Atlantic), 0��� 3 m.a.s.l., Per, Dia. Occurrence and conservation status: Nat, LC. References: Angulo et al. (2013: 995; listed, including taxonomic information and distributional data) and Robertson & Van Tassell (2019: 3232; detailed description, including illustrations, information on distribution, with a map, and ecology)., Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 51, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630, {"references":["Robertson, D. R. & Van Tassell, J. (2019) Shorefishes of the Greater Caribbean: online information system. Version 2.0 Smithsonian Tropical Research Institute, Balboa, Panama. Available from: https: // biogeodb. stri. si. edu / caribbean / en / pages (accessed 27 August 2021)."]}
- Published
- 2021
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23. Atherinopsidae Fitzinger 1873
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Angulo, Arturo
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Atheriniformes ,Actinopterygii ,Atherinopsidae ,Animalia ,Biodiversity ,Chordata ,Taxonomy - Abstract
Family Atherinopsidae Fitzinger, 1873. New World Silversides; Pejerreyes, Sardinas, Plateadas. 2 G, 7 S., Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 51, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630
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- 2021
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24. New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist
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Arturo Angulo
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Anguillidae ,Atheriniformes ,Liliopsida ,Mugiliformes ,Cyprinodontiformes ,Poeciliidae ,Carangidae ,Albulidae ,Syngnathidae ,Chordata ,Plantae ,Phylogeny ,Tetraodontidae ,Fishes ,Cucurbitales ,Cichlidae ,Achiridae ,Carcharhiniformes ,Serrasalmidae ,Heptapteridae ,Costa Rica ,Centrarchidae ,Pyrgomorphidae ,Pleuronectiformes ,Ariidae ,Synbranchidae ,Cyprinidae ,Rhinopristiformes ,Beloniformes ,Dactyloscopidae ,Humans ,Araceae ,Microdesmidae ,Syngnathiformes ,Ecology, Evolution, Behavior and Systematics ,Centropomidae ,Engraulidae ,Tetraodontiformes ,Pristidae ,Gymnotiformes ,Lepisosteidae ,Blenniidae ,Erythrinidae ,Perciformes ,Anguilliformes ,Clupeiformes ,Cucurbitaceae ,Atherinopsidae ,Lepisosteiformes ,Animal Science and Zoology ,Serranidae ,Gobiesociformes ,Insecta ,Fresh Water ,Rivulidae ,Hypopomidae ,Labridae ,Lebiasinidae ,Gymnotidae ,Salmoniformes ,Alismatales ,Bryconidae ,Lutjanidae ,Belonidae ,Biodiversity ,Megalopidae ,Pangasiidae ,Elopidae ,Characiformes ,Salmonidae ,Arthropoda ,Carcharhinidae ,Synbranchiformes ,Polynemidae ,Sciaenidae ,Albuliformes ,Eleotridae ,Magnoliopsida ,Animals ,Animalia ,Gobiesocidae ,Haemulidae ,Hemiramphidae ,Curimatidae ,Paralichthyidae ,Elopiformes ,Taxonomy ,Kyphosidae ,Actinopterygii ,Clupeidae ,Characidae ,Loricariidae ,Trichomycteridae ,Gerreidae ,Ophichthidae ,Cypriniformes ,Tracheophyta ,Anablepidae ,Orthoptera ,Gobiidae ,Mugilidae ,Siluriformes ,Elasmobranchii - Abstract
The knowledge of the Costa Rican freshwater fish fauna continues to grow given the discovery of new taxa, the recognition of taxa resurrected from synonymy and the corroboration of new country records and new range extensions. Moreover, recent advances in the understanding of the phylogenetic relationships and status of many supraspecific groups have led to numerous taxonomic and nomenclatural changes. Given this, the purpose of this paper is to update the known composition, distribution and clasification of the Costa Rican freshwater fish fauna taking as reference the most recent list for the country published by Angulo et al. (2013). A total of 23 new country records (i.e., species; distributed in 17 families and 21 genera), 33 new range extensions (distributed in 20 families and 30 genera) and several nomenclatural changes are reported, illustrated and discussed here. An updated and annotated checklist of the freshwater fishes of the country (including data for a total of 283 species, 13 of which are exotic, distributed in two classes, 27 orders, 55 families and 136 genera) is also provided.
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- 2021
25. Atherinella argentea Chernoff 1986
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Angulo, Arturo
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Atheriniformes ,Actinopterygii ,Atherinopsidae ,Animalia ,Atherinella argentea ,Atherinella ,Biodiversity ,Chordata ,Taxonomy - Abstract
Atherinella argentea Chernoff, 1986. Longfin Silverside, Moon Silverside; Pejerrey, Plateadito. Distribution: Global: Eastern Pacific Ocean; from Guatemala to western Panama; entering estuaries and littoral lagoons and ascending river courses; Costa Rica: (Atlantic), Ni, Te, Be, Ba, Ta, Pi, Tr and Co (Pacific), 0��� 7 m.a.s.l., Per, Dia. Occurrence and conservation status: Nat, LC. References: Bussing (1987: 158, as Melaniris guatemalensis (G��nther 1864) ���missidentification; 1998: 237; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology), Angulo et al. (2013: 995; listed, including taxonomic information and distributional data) and Robertson & Allen (2015: 2528; detailed description, including illustrations, information on distribution, with a map, and ecology)., Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 51, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630, {"references":["Robertson, D. R. & Allen, G. R. (2015) Shorefishes of the Tropical Eastern Pacific: online information system. Version 2.0. Smithsonian Tropical Research Institute, Balboa, Panama. Available from: https: // biogeodb. stri. si. edu / sftep / en / pages (accessed 27 August 2021)."]}
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- 2021
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26. Atherinella hubbsi
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Angulo, Arturo
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Atheriniformes ,Actinopterygii ,Atherinopsidae ,Atherinella hubbsi ,Animalia ,Atherinella ,Biodiversity ,Chordata ,Taxonomy - Abstract
Atherinella hubbsi (Bussing, 1979). Hubbsi���s Silverside; Pejerrey de Hubbsi. Distribution: Global: Middle America; from southern Nicaragua to northern Costa Rica, Atlantic drainages; Costa Rica: LN, RF, SJ, SC, Sa, To, Pa and Ma (Atlantic), 35��� 540 m.a.s.l., Per, Dia. Occurrence and conservation status: Nat, NT. References: Bussing (1979b: 400; detailed description, including illustrations, information on distribution and ecology; 1987: 159, as Melaniris hubbsi ���synonym; 1998: 241; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology) and Angulo et al. (2013: 995; listed, including taxonomic information and distributional data)., Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 52, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630, {"references":["Bussing, W. A. (1979 b) Taxonomic status of the atherinid fish genus Melaniris in lower Central America, with the description of three new species. Revista de Biologia Tropical, 26 (2), 391 - 413."]}
- Published
- 2021
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27. Membras gilberti
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Angulo, Arturo
- Subjects
Atheriniformes ,Actinopterygii ,Atherinopsidae ,Membras ,Animalia ,Membras gilberti ,Biodiversity ,Chordata ,Taxonomy - Abstract
Membras gilberti (Jordan & Bollman, 1890). Landia Silverside; Pejerrey Landia. Distribution: Global: Eastern Pacific Ocean; from the Gulf of California, Mexico, to northern Peru; entering estuaries and littoral lagoons and ascending river courses; Costa Rica: Ba, Ta, Pi and Tr (Pacific), 0��� 7 m.a.s.l., Per, Dia. Occurrence and conservation status: Nat, LC. References: Angulo et al. (2013: 995; listed, including taxonomic information and distributional data) and Robertson & Allen (2015: 834; detailed description, including illustrations, information on distribution, with a map, and ecology)., Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 52, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630, {"references":["Robertson, D. R. & Allen, G. R. (2015) Shorefishes of the Tropical Eastern Pacific: online information system. Version 2.0. Smithsonian Tropical Research Institute, Balboa, Panama. Available from: https: // biogeodb. stri. si. edu / sftep / en / pages (accessed 27 August 2021)."]}
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- 2021
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28. Atherinella chagresi
- Author
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Angulo, Arturo
- Subjects
Atheriniformes ,Actinopterygii ,Atherinopsidae ,Animalia ,Atherinella ,Biodiversity ,Chordata ,Atherinella chagresi ,Taxonomy - Abstract
Atherinella chagresi (Meek & Hildebrand, 1914). Chagres Silverside; Pejerrey de Chagres. Distribution: Global: Western Atlantic and eastern Pacific (introduced) Oceans; from northern Nicaragua to Central Panama in the western Atlantic; entering estuaries and littoral lagoons and ascending river courses; Costa Rica: To, Pa, Ma and Si (Atlantic), 8��� 60 m.a.s.l., Per, Dia. Occurrence and conservation status: Nat, LC. References: Bussing (1966: 237, as Melaniris chagresi ���synonym; listed, information on distribution), Bussing (1987: 157, as M. chagresi ���synonym; 1998: 240; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology), Angulo et al. (2013: 995; listed, including taxonomic information and distributional data), Robertson & Allen (2015: 3234; detailed description, including illustrations, information on distribution, with a map, and ecology) and Robertson & Van Tassell (2019: 3234; detailed description, including illustrations, information on distribution, with a map, and ecology)., Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 51, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630, {"references":["Robertson, D. R. & Allen, G. R. (2015) Shorefishes of the Tropical Eastern Pacific: online information system. Version 2.0. Smithsonian Tropical Research Institute, Balboa, Panama. Available from: https: // biogeodb. stri. si. edu / sftep / en / pages (accessed 27 August 2021).","Robertson, D. R. & Van Tassell, J. (2019) Shorefishes of the Greater Caribbean: online information system. Version 2.0 Smithsonian Tropical Research Institute, Balboa, Panama. Available from: https: // biogeodb. stri. si. edu / caribbean / en / pages (accessed 27 August 2021)."]}
- Published
- 2021
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29. Atherinella sardina
- Author
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Angulo, Arturo
- Subjects
Atheriniformes ,Actinopterygii ,Atherinopsidae ,Animalia ,Atherinella sardina ,Atherinella ,Biodiversity ,Chordata ,Taxonomy - Abstract
Atherinella sardina (Meek, 1907). Nicaraguan Silverside; Pejerrey Nicaraguense. Distribution: Global: Middle America; from southern Nicaragua to northern Costa Rica, Atlantic drainages; Costa Rica: LN (Atlantic), 0���40 m.a.s.l., Per, Dia. Occurrence and conservation status: Nat, VU. References: Bussing (1987: 161, as Melaniris sardina ���synonym; 1998: 244; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology) and Angulo et al. (2013: 995; listed, including taxonomic information and distributional data)., Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 52, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630
- Published
- 2021
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30. The effect of rearing temperature in larval development of pejerrey, Odontesthes bonariensis: morphological indicators of development
- Author
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Tomás Chalde, Daniel A. Fernández, Víctor E. Cussac, and Gustavo M. Somoza
- Subjects
Atherinopsidae ,Fin fold ,Larvae ,Sexual determination ,Zoology ,QL1-991 - Abstract
It is well known that in pejerrey water temperature not only affects growth rates but also directs the sexual differentiation process. This fact rise the question of how different the development of pejerrey larvae of the same age is when reared at different temperatures. A description of developmental stages for the embryonic and larval periods of the pejerrey, Odontesthes bonariensis, and the influence of rearing temperature on larval development are presented. Then, larval development was studied at three rearing temperatures, and changes in general morphology, fin morphology, and caudal fin structure have been taken into consideration within the thermal range involved in the temperature sex determination of this species. Fin fold reabsorption, caudal fin formation, and body shape were selected to follow the events leading to the acquisition of the juvenile morphology. The juvenile phenotype was defined when the fin fold was reabsorpted and the caudal fin acquired its definitive homocercal structure. The moment at which the juvenile phenotype was achieved, was evaluated in relation to larval age, size and, shape. The size resulted as the best indicator of development in pejerrey.A temperatura da água não afeta apenas as taxas de crescimento no peixe-rei, mas também direciona o processo de diferenciação sexual. Este fato levanta o questionamento de quão diferente é o desenvolvimento de larvas do peixe-rei da mesma idade quando criadas em temperaturas diferentes. Este trabalho teve como objetivo apresentar uma descrição do de desenvolvimento de embriões e larvas do peixe-rei, Odontesthes bonariensis, e a influência da temperatura de criação no desenvolvimento das larvas. Neste trabalho, o desenvolvimento das larvas foi estudado em três temperaturas diferentes de cultivo. Foram consideradas as alterações ocorridas na morfologia geral, assim como na morfologia e na estrutura da nadadeira caudal dentro da variação termal da temperatura de determinação sexual desta espécie. A taxa de reabsorção da membrana embrionária, a formação da cauda e o formato do corpo foram selecionados para acompanhar os eventos que levam à aquisição da morfologia juvenil. O fenótipo juvenil foi definido quando a nadadeira caudal foi reabsorvida e a cauda adquiriu a estrutura homocerca. O momento no qual o fenótipo juvenil foi atingido, foi avaliado quanto à idade, tamanho e formato da larva, sendo que o tamanho resultou no melhor indicador do desenvolvimento do peixe-rei.
- Published
- 2011
31. Selectividad del zooplancton y solapamiento trófico entre tallas del pez Menidia humboldtiana (Atheriniformes: Atherinopsidae) en el embalse Danxhó, México
- Author
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Regina Sánchez Merino, Miriam Y Fermín Benítez, and Angélica Mendoza Estrada
- Subjects
Menidia ,Atherinopsidae ,charal ,lago artificial ,selectividad alimentaria ,artificial lake ,silverside ,food selectivity ,Biology (General) ,QH301-705.5 - Abstract
El charal Menidia humboldtiana es considerado como una de las especies de gran importancia en la industria pesquera de algunos estados de México. Es necesario conocer el efecto que esta especie ejerce sobre su alimento para saber si seleccionan las presas de mayor talla, si hay competencia por el alimento entre especies nativas e introducidas, y para comprender el comportamiento del zooplancton ante peces zooplanctófagos. Se determinó si M. humboldtiana selecciona su alimento, sobre qué géneros lo hace, y si existe traslape en la dieta entre las diferentes tallas. Los peces se recolectaron por medio de un chinchorro de 88 mm de abertura de malla, en seis estaciones de muestreo durante un año, en el embalse Danxhó, y una muestra de zooplancton fue recolectada por filtrado con una red de 125 µm. El análisis de los contenidos estomacales se realizó en peces agrupados en intervalos de longitud estándar para cada época del año, por medio del método volumétrico. Para evaluar el traslape trófico entre los diferentes intervalos de longitud, se utilizó el índice de Morisita modificado por Horn. El zooplancton estuvo representado por doce géneros: Mastigodiaptomus y Cyclops (Copepoda); Bosmina, Diaphanosoma, Daphnia, Ceriodaphnia, Moina, Alonopsis y Camptocercus (Cladocera); Asplanchna, Conochillus y Filinia (Rotifera). Durante la primavera, los charales de 3-8.9 cm presentaron un marcado traslape, para el verano fueron los grandes (7-10.9 cm), en otoño el traslape fue en todas las tallas, y en invierno solo las tallas intermedias (5-8.9 cm) lo presentaron.Selectivity of zooplankton and trophic overlap between size Menidia humboldtiana fish (Atheriniformes: Atherinopsidae) in the reservoir Danxhó, Mexico. The Menidia humboldtiana silverside is considered one of the most important species in fisheries in some states of Mexico. Knowing the choice that this species exercises over its food gives us an understanding of the behavior of zooplankton in presence of zooplanktonic fish, and tells us if the silverside choose amongst bigger prey fish, and if there is competition for food between the native and introduced fish in the reservoir. The purpose of this study was to determine if M. humboldtiana selects its food, and in which genera, and to establish whether there was an overlap in the diet of the different sizes of silverside. The fish were catched with a 88 mm mesh net, in six sampling points during one year, from Danxhó (19°5´17" - 53´46" N, 99° 32´42" - 35´40" W) reservoir. Samples of filtered zooplankton were also taken with a 125 micron net. The analysis of stomach contents was carried out in fish grouped by regular size intervals during each season of the year, using the volumetric method and Chesson’s selectivity coefficient. To evaluate the trophic overlap between the different size groups, the Morisita index, modified by Horn, was used. The zooplankton community was represented by twelve genera: Mastigodiaptomus and Cyclops (Copepoda); Bosmina, Diaphanosoma, Daphnia, Ceriodaphnia, Moina, Alonopsis and Camptocercus, (Cladocera); Asplanchna, Conochillus and Filinia (Rotifera). Mastigodiaptomus was the most abundant throughout the year. The silverside consumed only four genera: Bosmina, Mastigodiaptomus, Daphnia and Ceriodaphnia; the group measuring 5 to 8.9 cm consumed a high percentage of Bosmina, Mastigodiaptomus and Daphnia, and a lesser percentage of Ceriodaphnia. The larger fish (9 to 10.9 cm) consumed only Mastigodiaptomus and Daphnia. In accordance with the selectivity values, the small and medium size silverside selected their prey, with more intensity on the genera Bosmina and Daphnia, while the bigger fish concentrated on Daphnia and Mastigodiaptomus. During spring, the silverside between 3 to 8.9 cm showed overlap in diet; in summer the bigger size group (7-10.9 cm) showed the overlap. In autumm the overlap ocurred in all sizes, and in winter it was shown only in the medium size fish (5-8.9 cm). Rev. Biol. Trop. 57 (1-2): 187-194. Epub 2009 June 30.
- Published
- 2009
32. Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico
- Author
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Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W., and Maslenikov, Katherine P.
- Subjects
Sarcoscyphaceae ,Atheriniformes ,Diodontidae ,Fistulariidae ,Introduced species ,Cephalaspidomorphi ,Gasterosteiformes ,Mugiliformes ,Hexanchidae ,Zaproridae ,Giganturidae ,Fundulidae ,Melanonidae ,Cetorhinidae ,Carangidae ,Pholidae ,Polypodiopsida ,Syngnathidae ,Clinidae ,Lobotidae ,Cetomimidae ,Bathysauridae ,Lythraceae ,Notosudidae ,Cryptacanthodidae ,Lampridae ,Gadidae ,Centriscidae ,Euphorbiaceae ,Callionymidae ,Opistognathidae ,Cichlidae ,Heterodontiformes ,Gempylidae ,Colocongridae ,Achiridae ,Torpedinidae ,Zeidae ,Cyematidae ,Moronidae ,Beryciformes ,Petromyzontiformes ,Centrophrynidae ,Istiophoridae ,Labrisomidae ,Ginglymostomatidae ,Agonidae ,Rhinopristiformes ,Acipenseridae ,Beloniformes ,Opisthoproctidae ,Scorpaeniformes ,Derichthyidae ,Zanclidae ,Ascomycota ,Petromyzontidae ,Cyclopteridae ,Dactyloscopidae ,Microdesmidae ,Syngnathiformes ,Pomacentridae ,Monacanthidae ,Holocentridae ,Engraulidae ,Squatiniformes ,Pristidae ,Aulopiformes ,Hexanchiformes ,Notacanthiformes ,Blenniidae ,Lotidae ,Clupeiformes ,Gadiformes ,Heterodontidae ,Ditrichaceae ,Gasterosteidae ,Stylephoridae ,Thaumatichthyidae ,Chiasmodontidae ,Insecta ,Range (biology) ,Congridae ,Scomberesocidae ,Asparagales ,Megachasmidae ,Trichodontidae ,Alepisauridae ,Bathymasteridae ,Cynoglossidae ,Balistidae ,Bregmacerotidae ,Myxiniformes ,Labridae ,Halosauridae ,Nemichthyidae ,Scytalinidae ,Bathylagidae ,Leptochilichthyidae ,Macrouridae ,Rhincodontidae ,Priacanthidae ,Alismatales ,biology ,Lutjanidae ,Myxinidae ,Ammodytidae ,Xiphiidae ,Biodiversity ,Berberidaceae ,Alopiidae ,Monognathidae ,Caulophrynidae ,Stromateidae ,Chaenopsidae ,Narcinidae ,Osmeriformes ,Hexagrammidae ,Nematistiidae ,Eurypharyngidae ,Triakidae ,Gigantactinidae ,Chimaeridae ,Salmonidae ,Acoela ,Arthropoda ,Carcharhinidae ,Dicranales ,Synaphobranchidae ,Polynemidae ,Albuliformes ,Cetomimiformes ,Rajidae ,Trichiuridae ,Somniosidae ,Magnoliopsida ,Sebastidae ,Ophidiidae ,Orobanchaceae ,Diretmidae ,Oplegnathidae ,Polypodiales ,Animals ,Animalia ,Haemulidae ,Rhinochimaeridae ,Saccopharyngiformes ,Cirrhitidae ,Orchidaceae ,Mexico ,Myrtales ,Coryphaenidae ,biology.organism_classification ,Batrachoidiformes ,Cottidae ,Holocephali ,Ostraciidae ,Fishery ,Ophichthidae ,Myliobatiformes ,Tracheophyta ,Cypriniformes ,Chlamydoselachidae ,Myctophidae ,Microstomatidae ,Caristiidae ,Echeneidae ,Trachipteridae ,Gobiidae ,Elasmobranchii ,Aphyonidae ,Rhinobatidae ,Acanthuridae ,Chimaeriformes ,Mullidae ,Ranunculales ,Gymnuridae ,Liliopsida ,Saccopharyngidae ,Pleuronectidae ,Rubiaceae ,Arecaceae ,Oneirodidae ,Scopelarchidae ,Oreosomatidae ,Echinorhinidae ,Myliobatidae ,Cyprinodontiformes ,Poeciliidae ,Chaetodontidae ,Albulidae ,Chaunacidae ,Chordata ,Mitsukurinidae ,Muraenidae ,Plantae ,Barbourisiidae ,Batrachoididae ,Zeiformes ,Tetraodontidae ,Fishes ,Lophiiformes ,Himantolophidae ,Caryophyllales ,Phosichthyidae ,Lamiales ,Synodontidae ,Paralepididae ,Carcharhiniformes ,Argentinidae ,Scorpaenidae ,Serrivomeridae ,Melanocetidae ,Stomiidae ,Echinodermata ,Uranoscopidae ,Dasyatidae ,Pseudocarchariidae ,Torpediniformes ,Sternoptychidae ,Merlucciidae ,Anoplopomatidae ,Ariidae ,Pleuronectiformes ,Cyprinidae ,Polyprionidae ,Psychrolutidae ,Bryophyta ,Stomiiformes ,Xenacoelomorpha ,Gonorynchiformes ,Ipnopidae ,Pezizomycetes ,Evermannellidae ,Lophiidae ,Chanidae ,Araceae ,Aulorhynchidae ,Ophidiiformes ,Oreasteridae ,Myxini ,Sphyrnidae ,Dalatiidae ,Anarhichadidae ,Ecology, Evolution, Behavior and Systematics ,Anoplogastridae ,Centropomidae ,Tetraodontiformes ,Nettastomatidae ,Antennariidae ,Chlopsidae ,Lampriformes ,Orectolobiformes ,Aulostomidae ,Bryopsida ,Anguilliformes ,Carapidae ,Perciformes ,Rajiformes ,Notacanthidae ,Moridae ,Atherinopsidae ,Pristigasteridae ,Scombridae ,Animal Science and Zoology ,Valvatida ,Serranidae ,Woodsiaceae ,Arhynchobatidae ,Gobiesociformes ,Hemitripteridae ,Ogcocephalidae ,Triglidae ,Malpighiales ,Bothidae ,Malacanthidae ,Dussumieriidae ,Bythitidae ,Centrolophidae ,Platytroctidae ,Linophrynidae ,Ephippidae ,Pezizales ,Tripterygiidae ,Neoscopelidae ,Curculionidae ,Scyliorhinidae ,Squalidae ,Embiotocidae ,Anotopteridae ,Bramidae ,Anomalopidae ,Lamniformes ,Isodiametridae ,Nomeidae ,Salmoniformes ,Amaranthaceae ,Gonostomatidae ,Acipenseriformes ,Belonidae ,Aulopidae ,Liparidae ,Sphyraenidae ,Coleoptera ,Apogonidae ,Odontaspididae ,Elopidae ,Luvaridae ,Myctophiformes ,Canada ,Howellidae ,Etmopteridae ,Stephanoberyciformes ,Kuhliidae ,Ptilichthyidae ,Sciaenidae ,Eleotridae ,Ceratiidae ,Arecales ,Scaridae ,Asteroidea ,Tetragonuridae ,Gobiesocidae ,Hemiramphidae ,Paralichthyidae ,Elopiformes ,Molidae ,Taxonomy ,Kyphosidae ,Actinopterygii ,Clupeidae ,Exocoetidae ,Fungi ,Squaliformes ,Gerreidae ,Urotrygonidae ,Melamphaidae ,Rhamphocottidae ,Alepocephalidae ,Icosteidae ,Muraenesocidae ,Lamnidae ,Regalecidae ,Pomacanthidae ,Squatinidae ,Mugilidae ,Osmeridae ,Zoarcidae ,Siluriformes ,Gentianales ,Stichaeidae - Abstract
Unidentified opistognathid. Lissner and Dorsey (1986) observed from a manned submersible a jawfish they were unable to identify at Tanner��� Cortes Bank, southern California., Published as part of Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, pp. 1-285 in Zootaxa 5053 (1) on page 150, DOI: 10.11646/zootaxa.5053.1.1, http://zenodo.org/record/5578008, {"references":["Lissner, A. L. & Dorsey, J. H. (1986) Deep-water biological assemblages of a hard-bottom bank-ridge complex of the southern California continental borderland. Bulletin of the Southern California Academy of Sciences, 85, 87 - 101."]}
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33. Menidia audens Hay 1882
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Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W., and Maslenikov, Katherine P.
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Atheriniformes ,Actinopterygii ,Atherinopsidae ,Menidia audens ,Animalia ,Biodiversity ,Menidia ,Chordata ,Taxonomy - Abstract
** Menidia audens Hay, 1882. Mississippi Silverside. To 15 cm (3.9 in) TL (Page and Burr 2011). Native to the greater Mississippi Valley. Found in San Francisco Bay and in various freshwater systems in California (Moyle 2002). California specimens sometimes, and apparently erroneously, referred to as Menidia beryllina (Cope, 1867)., Published as part of Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, pp. 1-285 in Zootaxa 5053 (1) on page 93, DOI: 10.11646/zootaxa.5053.1.1, http://zenodo.org/record/5578008, {"references":["Page, L. M. & Burr, B. M. (2011) Peterson Field Guide to Freshwater Fishes of North America North of Mexico.","Moyle, P. B. (2002) Inland Fishes of California. Revised and Expanded. University of California Press, Berkeley."]}
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- 2021
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34. Atherinella nepenthe
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Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W., and Maslenikov, Katherine P.
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Atheriniformes ,Actinopterygii ,Atherinopsidae ,Animalia ,Atherinella ,Biodiversity ,Chordata ,Atherinella nepenthe ,Taxonomy - Abstract
Atherinella nepenthe (Myers & Wade, 1942). Pitcher Silverside. To 10 cm (3.9 in) TL (Lavenberg and Chernoff in Fischer et al. 1995). Punta Abreojos, southern Baja California (Watson in Moser 1996) to Peru (10°34’S, 77°56’W) (Chirichigno and Vélez 1998), including southeast corner of Baja California (Robertson and Allen 2015). Depth: surf, upper water column near shore to 10 m (33 ft) (min.: Watson in Moser 1996; max.: Robertson and Allen 2002)., Published as part of Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, pp. 1-285 in Zootaxa 5053 (1) on page 92, DOI: 10.11646/zootaxa.5053.1.1, http://zenodo.org/record/5578008, {"references":["Fischer, W., Krupp, F., Schneider, W., Sommer, C., Carpenter, K. E. & Niem, V. H. (1995) Guia FAO para la identificacion para los fines de la pesca. Pacifico centro-oriental. Volume II, Vertebrados, Parte 1. Volume III, Vertebrados, Parte 2. FAO, Rome.","Moser, H. G. (Ed.). (1996) The early stages of fishes in the California Current region. CALCOFI Atlas, No. 33.","Chirichigno, F. N. & Velez D, J. (1998) Clave para identificaticar los peces marinos del Peru (segunda edicion, revisada y actualizada). Instituto de Mar de Peru Publicacion Especial.","Robertson, D. R. and Allen, G. R. (2015) Shorefishes of the Tropical Eastern Pacific: an Information System. Version 2.0 (2008). Smithsonian Tropical Research Institute, Balboa. http: // biogeodb. stri. si. edu / sftep / en / pages","Robertson, D. R. & Allen, G. R. (2002) Shorefishes of the tropical eastern Pacific: an information system. CD-ROM. Smithsonian Tropical Research Institute, Balboa, Panama."]}
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- 2021
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35. Atherinops affinis
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Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W., and Maslenikov, Katherine P.
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Atheriniformes ,Atherinops ,Actinopterygii ,Atherinopsidae ,Animalia ,Biodiversity ,Atherinops affinis ,Chordata ,Taxonomy - Abstract
Atherinops affinis (Ayres, 1860). Topsmelt. To 38.8 cm (15.3 in) TL (M.L., unpubl. data). Near Sooke Harbour, Vancouver Island, British Columbia to Gulf of California (Miller and Lea 1972); not in central or southern Gulf of California (Robertson and Allen 2002). Nearshore; marine, brackish, and very occasionally nearly fresh waters (Moyle 2002); depth: surface (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California), intertidal to 26 m (85 ft) (min: Chotkowski 1994; max.: Limbaugh 1955). A maximum depth record of 63 m (207 ft) (NWFSC-FRAM), from a bottom trawl haul, is likely in error and represents a midwater catch on deployment or retrieval., Published as part of Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, pp. 1-285 in Zootaxa 5053 (1) on page 92, DOI: 10.11646/zootaxa.5053.1.1, http://zenodo.org/record/5578008, {"references":["Miller, D. J. & Lea, R. N. (1972) Guide to the coastal marine fishes of California. California Department of Fish and Game Fish Bulletin, 157.","Robertson, D. R. & Allen, G. R. (2002) Shorefishes of the tropical eastern Pacific: an information system. CD-ROM. Smithsonian Tropical Research Institute, Balboa, Panama.","Moyle, P. B. (2002) Inland Fishes of California. Revised and Expanded. University of California Press, Berkeley.","Chotkowski, M. A. (1994) The Behavioral Ecology and Population Dynamics of the Intertidal Fishes of the Northeast Pacific. Ph. D. Thesis, University of California, Los Angeles.","Limbaugh, C. (1955) Fish life in the kelp beds and the effects of kelp harvesting. University of California, Institute of Marine Research, IMR Ref. 55 - 9."]}
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36. Atherinopsis californiensis Girard 1854
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Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W., and Maslenikov, Katherine P.
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Atherinopsis ,Atheriniformes ,Actinopterygii ,Atherinopsidae ,Animalia ,Biodiversity ,Chordata ,Atherinopsis californiensis ,Taxonomy - Abstract
Atherinopsis californiensis Girard, 1854. Jacksmelt. To 48.6 cm (19.1 in) TL (Love et al. 2005). Yaquina Bay, Oregon (Miller and Lea 1972) to at least Bah��a Magdalena, southern Baja California (De La Cruz-Ag��ero et al. 1994), and in western and northeastern Gulf of California (Robertson and Allen 2002). Nearshore; marine, brackish, and occasionally fresh water (Moyle 2002); depth: surface and intertidal to at least 29 m (95 ft) (min.: Carlisle et al. 1960; max.: Limbaugh 1955); also found in hypersaline ponds (Ruiz-Campos et al. 2000). A maximum depth record of 103 m (338 ft) (NWFSC-FRAM), from a bottom trawl haul, is likely in error and represents a midwater catch on deployment or retrieval., Published as part of Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, pp. 1-285 in Zootaxa 5053 (1) on page 92, DOI: 10.11646/zootaxa.5053.1.1, http://zenodo.org/record/5578008, {"references":["Love, M. S., Mecklenburg, C. W., Mecklenburg, T. A. & Thorsteinson, L. K. (2005) Resource inventory of marine and estuarine fishes of the West Coast and Alaska: a checklist of North Pacific and Arctic Ocean species from Baja California to the Alaska-Yukon Border. United States Department of the Interior, United States Geological Survey, Biological Resources Divition, Seattle, OCS Study MMS 2005 - 030 and USGS / NBII 2005 - 001.","Miller, D. J. & Lea, R. N. (1972) Guide to the coastal marine fishes of California. California Department of Fish and Game Fish Bulletin, 157.","De La Cruz-Aguero, J., Galvan-Magana, F., Abitia-Cardenas, L. A., Rodriguez-Romero, J. & Gutierrez-Sanchez, F. J. (1994) Systematic list of marine fishes from Bahia Magdalena, Baja California Sur (Mexico). Ciencias Marinas, 20, 17 - 31.","Robertson, D. R. & Allen, G. R. (2002) Shorefishes of the tropical eastern Pacific: an information system. CD-ROM. Smithsonian Tropical Research Institute, Balboa, Panama.","Moyle, P. B. (2002) Inland Fishes of California. Revised and Expanded. University of California Press, Berkeley.","Carlisle, J. G. Jr., Schott, J. W. & Abramson, N. J. (1960) The barred surfperch (Amphistichus argenteus Agassiz) in southern California. California Department of Fish and Game, Fish Bulletin, 109.","Limbaugh, C. (1955) Fish life in the kelp beds and the effects of kelp harvesting. University of California, Institute of Marine Research, IMR Ref. 55 - 9.","Ruiz-Campos, G., Contreras-Balderas, S., Lozano-Vilano, M. L., Gonzalez-Guzman, S. & Alaniz-Garcia, J. (2000) Ecological and distributional status of the continental fishes of northwestern Baja California, Mexico. Bulletin of the Southern California Academy of Sciences, 99, 59 - 90."]}
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37. Atherinella eriarcha Jordan & Gilbert 1882
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Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W., and Maslenikov, Katherine P.
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Atheriniformes ,Actinopterygii ,Atherinella eriarcha ,Atherinopsidae ,Animalia ,Atherinella ,Biodiversity ,Chordata ,Taxonomy - Abstract
Atherinella eriarcha Jordan & Gilbert, 1882. Longfin Silverside. To at least 8.5 cm (3.3 in) SL (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California). Bah��a San Hip��lito, southern Baja California (Watson in Moser 1996) to Colombia (Lavenberg and Chernoff in Fischer et al. 1995), including lower Gulf of California (Lavenberg and Chernoff in Fischer et al. 1995). Depth: surface (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California), intertidal to 15 m (50 ft) (min.: Robertson and Allen 2002; max.: Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California)., Published as part of Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, pp. 1-285 in Zootaxa 5053 (1) on page 92, DOI: 10.11646/zootaxa.5053.1.1, http://zenodo.org/record/5578008, {"references":["Moser, H. G. (Ed.). (1996) The early stages of fishes in the California Current region. CALCOFI Atlas, No. 33.","Fischer, W., Krupp, F., Schneider, W., Sommer, C., Carpenter, K. E. & Niem, V. H. (1995) Guia FAO para la identificacion para los fines de la pesca. Pacifico centro-oriental. Volume II, Vertebrados, Parte 1. Volume III, Vertebrados, Parte 2. FAO, Rome.","Robertson, D. R. & Allen, G. R. (2002) Shorefishes of the tropical eastern Pacific: an information system. CD-ROM. Smithsonian Tropical Research Institute, Balboa, Panama."]}
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- 2021
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38. Leuresthes tenuis
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Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W., and Maslenikov, Katherine P.
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Atheriniformes ,Leuresthes ,Actinopterygii ,Atherinopsidae ,Animalia ,Biodiversity ,Chordata ,Leuresthes tenuis ,Taxonomy - Abstract
Leuresthes tenuis (Ayres, 1860). California Grunion. To 19 cm (7.5 in) TL (Eschmeyer and Herald 1983). Tomales Bay, northern California (Roberts et al. 2007) to Bah��a Magdalena, southern Baja California (Miller and Lea 1972). Depth: intertidal to 18 m (60 ft) (Miller and Lea 1972)., Published as part of Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, pp. 1-285 in Zootaxa 5053 (1) on page 93, DOI: 10.11646/zootaxa.5053.1.1, http://zenodo.org/record/5578008, {"references":["Eschmeyer, W. N. & Herald, E. S. (1983) A Field Guide to Pacific Coast Fishes of North America from the Gulf of Alaska to Baja California. Houghton Mifflin, Boston.","Roberts, D., Lea, R. N. & Martin, K. L. (2007) First record of the occurrence of the California grunion, Leuresthes tenuis, in Tomales Bay, California, a northern extension of the species. California Fish and Game, 93, 107 - 110.","Miller, D. J. & Lea, R. N. (1972) Guide to the coastal marine fishes of California. California Department of Fish and Game Fish Bulletin, 157."]}
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- 2021
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39. Feeding frequency has a determinant role in growth performance, skeletal deformities, and body composition in the Mexican pike silverside (Chirostoma estor), an agastric short-intestine fish (Teleostei: Atheriniformes).
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Melo, Naiara, Konig, Isaac Filipe Moreira, Ríos-Durán, María Gisela, Navarrete-Ramírez, Pamela, Martínez-Palacios, Carlos Antonio, Murgas, Luis David Solis, and Martínez-Chávez, Carlos Cristian
- Subjects
- *
BODY composition , *FISH farming , *OSTEICHTHYES , *HUMAN abnormalities , *MUSCLE growth , *FISH morphology , *FISH anatomy - Abstract
Several fish species with potential for aquaculture diversification possess agastric short-intestine anatomical configuration. The absence of a stomach or long intestine in fish may imply specific feeding frequency strategies for optimal growth. Because adequate feeding frequencies are paramount for thriving fish culture, the present study aimed to evaluate the effects of feeding frequency on growth performance, feeding efficiency, survival, deformities, proximate body composition, and muscle growth in Mexican pike silverside (Chirostoma estor: Atherinopsidae) a short-intestine agastric fish. Fish with an average weight of 180.57 ± 3.02 mg were randomly distributed in twelve tanks and fed four (M4), eight (M8), and twelve (M12) times a day until apparent satiety for 45 days. Significantly higher growth (70%) was found in M12 treatment compared to M4. There was no difference in survival among treatments. However, significantly fewer deformities were found in the M12 treatment compared to M8 and M4 treatments. Increased feeding frequency produced fish with higher lipids, with a concomitant reduction in ash content. Muscle fiber diameters were significantly different in all treatments: M12 (32.97 ± 3.13 μm), M8 (30.28 ± 4.59 μm), and M4 (26.74 ± 4. 42 μm). These results reflect the importance of feeding strategies in accordance to fish habits and their digestive configurations and may be relevant for other emerging species with similar digestive morphology and lower in the trophic chain, which are essential for aquaculture diversification and sustainability. • Frequent feeding significantly improves growth in Chirostoma estor. • Increasing feeding frequency reduces skeletal deformities in pike silverside • High feeding frequency optimizes feed efficiency in short-intestine-agastric fish. [ABSTRACT FROM AUTHOR]
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- 2023
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40. Parasites of Brook Silversides, Labidesthes sicculus, and Golden Silversides, L. vanhyningi (Atheriniformes: Atherinopsidae), from Arkansas and Oklahoma, U.S.A.
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MCALLISTER, CHRIS T. and CLOUTMAN, DONALD G.
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SILVERSIDES ,PERKINSUS marinus - Abstract
Thirty-six Brook Silversides, Labidesthes sicculus, and 15 Golden Silversides, Labidesthes vanhyningi, collected from the Ouachita and Red River drainage basins of Arkansas and Oklahoma, U.S.A., were examined for parasites. Six (17%) of the L. sicculus and 3 (20%) of the L. vanhyningi were infected with Dermocystidium sp., 1 (7%) L. vanhyningi harbored an immature tapeworm, Proteocephalus sp., and I (7%) L. vanhyningi was infected with the copepod Ergasilus fimduli. We document new host records for all 3 parasites as well as 2 new state records for Dermocystidium sp. and E. funduli. [ABSTRACT FROM AUTHOR]
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- 2016
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41. A complete chitinolytic system in the atherinopsid pike silverside Chirostoma estor: gene expression and activities.
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Pohls, P., González‐Dávalos, L., Mora, O., Shimada, A., Varela‐Echavarria, A., Toledo‐Cuevas, E. M., and Martínez‐Palacios, C. A.
- Subjects
- *
ATHERINOPSIDAE , *GENE expression in fishes , *SILVERSIDES , *CHITINASE , *FISH food , *POLYMERASE chain reaction ,FISH digestive organs - Abstract
The expression and digestive activity of pike silverside Chirostoma estor endogenous chitinases were analysed in samples from four life stages: whole eggs; larvae; juvenile intestine and hepatopancreas and adult intestine and hepatopancreas. A chitinase cDNA was cloned and partially sequenced ( GenBank accession number: FJ785521). It was highly homologous to non-acidic chitinase sequences from other fish species, suggesting that it is a chitotriosidase. Quantitative PCR showed that this chitinase was expressed throughout the life span of C. estor, with maximum expression in the hepatopancreas of juveniles. Chitotriosidase and chitobiosidase activities were found at all life stages, along with a very high level of N-acetyl glucosaminidase ( NAGase). The chitotriosidase activity could be encoded by the cloned complementary (c) DNA, although additional chitinase genes may be present. The chitotriosidase activity appeared to be transcriptionally regulated only at the juvenile stage. The expression and activity of chitinases tended to increase from the early to juvenile stages, suggesting that these variables are stimulated by chitin-rich live food. Nevertheless, the feeding of juvenile and adult fish with both live food and a balanced commercial diet seemed to provoke significant reductions in pancreatic NAGase secretion and/or synthesis in the gut. Moreover, all chitinase activities were lower in adults, probably reflecting a higher intake and use of the balanced diet. The observation of chitotriosidase and chitobiosidase activities together with a very high NAGase activity suggest the presence of a complete and compensatory chitinolytic chitinase system that enables this stomachless short-gut fish species to use chitin as an energy substrate. These novel findings suggest that dietary inclusions of chitin-rich ingredients or by-products might reduce the farming costs of C. estor without impairing performance. [ABSTRACT FROM AUTHOR]
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- 2016
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42. Gonadal differentiation and temperature effects on sex determination in the freshwater pike silverside Chirostoma estor Jordan 1880.
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Corona-Herrera, Guillermo, Tello-Ballinas, Juan, Hattori, Ricardo, Martínez-Palacios, Carlos, Strüssmann, Carlos, Cárdenas-Reygadas, Rodolfo, and Martínez-Chávez, Carlos
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SEXING of fish ,GONAD development ,FRESHWATER fishes ,CHIROSTOMA ,ATHERINOPSIDAE - Abstract
The gonadal description of the freshwater atherinopsid pike silverside Chirostoma estor suggests that the gonads differentiate as ovaries or testes by 8 weeks after hatching when raised at 21 °C. Thermal treatments at 14 °C, 21 °C and 29 °C applied from fertilisation, clearly affected phenotypic sex ratios, suggesting that the thermolabile window of sex determination occurred early in development. In this study, exposure to the highest temperature led to male-biased sex ratios in this species. However, the effects of the lower and medium temperatures on the sex ratios were less clear, suggesting the presence of a mixture of genotypic and temperature-dependent sex determination (TSD) mechanisms in C. estor, similar to other atherinopsids. This work further enhances our knowledge regarding the diversity and plasticity of TSD mechanisms in atherinopsid and teleost fish. [ABSTRACT FROM AUTHOR]
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- 2016
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43. Detecting causation on Zooplankton, atherinopsid, and barred splitfin time-series in a shallow tropical lake.
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Becerra-Muñoz, Salvador, Catalán-Romero, Juan M., and Buelna-Osben, Héctor R.
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- *
ZOOPLANKTON , *ATHERINOPSIDAE , *MARINE biomass , *TIME series analysis - Abstract
We used Multispatial Convergent Cross Mapping analysis to detect causality on monthly differences of zooplankton volume and fish density and biomass time-series of atherinopsids ( Chirostoma species) and barred splitfin ( Chapalichthys encaustus) from Lake Chapala, Mexico. The dynamics of monthly differences of zooplankton volume were causally influenced by monthly differences in pH. The dynamics of the monthly differences of atherinopsid and barred splitfin density, and atherinopsid biomass, were not causally influenced by monthly differences of any of the measured physicochemical variables. The dynamics of the monthly differences of the barred splitfin biomass were due to monthly differences in water temperature and alkalinity. The dynamics of monthly differences of zooplankton volume did not show any significant causal forcing on the dynamics of monthly differences of density and biomass of atherinopsid and barred splitfin density. The dynamics of monthly differences of atherinopsids showed significant causal influence on the dynamics of the monthly differences of the barred splitfin, but barred splitfin did not show causal influence on the dynamics of the monthly differences of atherinopsids. [ABSTRACT FROM AUTHOR]
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- 2016
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44. Surfing among species, populations and morphotypes: Inferring boundaries between two species of new world silversides (Atherinopsidae).
- Author
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González-Castro, Mariano, Rosso, Juan José, Mabragaña, Ezequiel, and Díaz de Astarloa, Juan Martín
- Subjects
- *
MARINE ecology , *SILVERSIDES , *ATHERINOPSIDAE , *HAPLOTYPES , *MORPHOMETRICS , *MULTIVARIATE analysis - Abstract
Atherinopsidae are widespread freshwater and shallow marine fish with singular economic importance. Morphological, genetical and life cycles differences between marine and estuarine populations were already reported in this family, suggesting ongoing speciation. Also, coexistence and interbreeding between closely related species were documented. The aim of this study was to infer boundaries among: (A) Odontesthes bonariensis and O . argentinensis at species level, and intermediate morphs; (B) the population of O . argentinensis of Mar Chiquita Lagoon and its marine conspecifics. To achieve this, we integrated, meristic, Geometrics Morphometrics and DNA Barcode approaches. Four groups were discriminated and subsequently characterized according to their morphological traits, shape and meristic characters. No shared haplotypes between O . bonariensis and O . argentinensis were found. Significative-meristic and body shape differences between the Mar Chiquita and marine individuals of O . argentinensis were found, suggesting they behave as well differentiated populations, or even incipient ecological species. The fact that the Odontesthes morphotypes shared haplotypes with both, O . argentinensis and O . bonariensis , but also possess meristic and morphometric distinctive traits open new questions related to the origin of this morphogroup. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
45. Natural growth, otolith shape and diet analyses of Odontesthes nigricans Richardson (Atherinopsidae) from southern Patagonia.
- Author
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Lattuca, M.E., Lozano, I.E., Brown, D.R., Renzi, M., and Luizon, C.A.
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- *
FISH growth , *OTOLITHS , *ODONTESTHES , *ATHERINOPSIDAE , *FISH age - Abstract
Age and growth, otolith shape and diet of Odontesthes nigricans were analysed in order to provide an insight into the life history of the species and furthermore, to assess their possible use as a tool for discriminating silverside populations from the South Atlantic Ocean (Punta María) and Beagle Channel waters (Varela Bay). The age and growth analysis was performed by counting daily increments and annual marks in sagittae otoliths. Length-at-age data of individuals <65 mm standard length (SL) were fitted to the Laird–Gompertz model ( SL t = 6.22 exp 2.45 [1−exp (−0.02 t )] ), which provided an excellent description of the pattern of daily growth for O. nigricans juveniles from Varela Bay. The spawning period was also assessed through back-calculation of hatching dates and it extended from November to February. The count of annual marks in larger individuals identified 7 year classes (0+ to 6+) in Varela Bay and 6 year classes (0+ to 5+) in Punta María. The von Bertalanffy growth model explained more than 95% of the growth patterns observed in O. nigricans from Varela Bay ( SL t = 245.49 [1 − exp − 0.24 ( t +0.46) ]) and Punta María ( SL t = 345.09 [1 − exp − 0.15 ( t +0.31) ]). Particularly, k and SL ∞ varied significantly between sampling sites; reaching Punta María a larger SL ∞ value with a lower k . Otolith shape variation was also explored using elliptical Fourier analysis and it showed significant differences between Varela Bay and Punta María populations. Furthermore, gut content analysis characterized O. nigricans as an invertebrate predator, being benthic organisms the most important components of its diet, which also showed significant site dependence. The use of all these analyses contributed to a holistic approach which maximized the likelihood of correctly identifying both O. nigricans populations in the southernmost limit of the species distribution. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
46. Desarrollo de la sagitta en juveniles y adultos de Odontesthes argentinensis (Valenciennes, 1835) y O. bonariensis (Valenciennes, 1835) de la provincia de Buenos Aires, Argentina (Teleostei: Atheriniformes) Development of the sagitta in young and adults of Odontesthes argentinensis (Valenciennes, 1835) and Odontesthes bonariensis (Valenciennes, 1835) from Buenos Aires province, Argentina (Teleostei: Atheriniformes)
- Author
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ANDREA D TOMBARI, ALEJANDRA V VOLPEDO, and DINORAH D ECHEVERRÍA
- Subjects
morfología ,sagitta ,Odontesthes ,Atherinopsidae ,morphology ,Zoology ,QL1-991 ,Botany ,QK1-989 - Abstract
Se describió el desarrollo del otolito Sagitta de juveniles y adultos de Odontesthes argentinensis procedentes de Punta Rasa (36°22' S) y Miramar (38°16' S) y de Odontesthes bonariensis de la Laguna de Chascomús (35° 36' S). Se estudió, la morfología de las sagittae de ambas especies, analizando cuatro grupos morfológicos para O. argentinensis (I: 75-120 mm, II: 130-220 mm, III: 230-270 y IV: 280-320 mm) y tres grupos morfológicos para O. bonariensis (I: 80-120 mm, II: 130-220 y III: 230-320 mm). Las características morfológicas comunes a la sagitta, de ambas especies, en los grupos estudiados son: presencia de sulcus, depresión areal dorsal en la cara medial, cara lateral con estrías y la presencia de un punto culminante en el borde dorsal. En la sagitta de O. argentinensis, la depresión areal dorsal se inicia ligada a la cauda, característica que permitió distinguir claramente entre otolitos de juveniles de ambas especies. A partir del estado adulto, la depresión areal dorsal se halla separada de la cauda en las dos especies y el análisis estadístico evidenció un crecimiento discontinuo. Se hallaron diferencias morfológicas entre pares de sagitta de un mismo individuo en cuanto a la forma del ostium, presencia de cisura, rostro y punto culminante, aunque no se halló significancia morfométricaThe development of the otolith sagitta was described in young and adults of two silverside species. Odontesthes argentinensis was collected from Punta Rasa (36°22' S) and Miramar (38°16' S) and, Odontesthes bonariensis collected from Laguna de Chascomús (35°36' S). Sagitta morphology was studied in both species, analyzing four morphological groups of O. argentinensis (I: 75-120 mm, II: 130-220 mm, III: 230-270 mm and IV: 280-320 mm) and three morphological groups of O. bonariensis (I: 80-120 mm, II: 130-220 mm and III: 230-320 mm). The morphological features of the sagitta shared by both species are: sulcus present, dorsal areal depression on the medial face, lateral face with striations and the presence of the culminant point on the dorsal margin. The dorsal areal depression of O. argentinensis begins in contact with the cauda. This feature easily identifies the sagittae of young in both species. The dorsal areal depression is separated from the cauda in adults of both species, and the statistical analysis showed a discontinuous growth. Morphological differences were found between pairs of sagittae of the same specimen relating to the shape of the ostium, presence of an anterior excisure, rostrum and the culminant point, but no significant morphometric difference was found
- Published
- 2005
47. Age and growth of three Odontesthes species from Southern Brazil (Atherinopsidae), with reference to phylogenetic constraints in their life-history
- Author
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F. G. Becker, W. Bruschi Jr., and A. C. Peret
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life history ,phylogeny ,age ,growth ,Atherinopsidae ,Science ,Biology (General) ,QH301-705.5 ,Zoology ,QL1-991 ,Botany ,QK1-989 - Abstract
The age and growth of three silverside species are described, and a discussion on possible phylogenetic constraints on life-history characteristics is presented. Samples were collected monthly between March 1992 and February 1993 in three freshwater coastal lakes. Standard length-total length (Ls-Lt) and weight-length (Wt-Lt) relationships studied showed interspecific differences in comparisons between juveniles and adults, males and females. Age was determined by scales. The three species presented a life-cycle duration of 4 to 5 years, with growth coefficients values (K) between 0.37 and 0.63, and asymptotic lengths between 211 and 257 mm. Some interspecific differences may be useful for distinguishing between species (sexual and life-stage related patterns in Ls-Lt and Wt-Lt). The observed life-cycle ranges and maximum sizes were compared to those of other silversides and revealed a pattern coherent with available phylogenetic hypotheses at the supra-generic level, indicating that some life-history characteristics may be subject to phylogenetic constraints.
- Published
- 2003
- Full Text
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48. Influence of climate variations on Chascomús shallow lake thermal conditions and its consequences on the reproductive ecology of the Argentinian Silverside ( Odontesthes bonariensis-Actinopterygii, Atherinopsidae).
- Author
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Elisio, Mariano, Vitale, Alejandro, and Miranda, Leandro
- Subjects
- *
ODONTESTHES bonariensis , *EFFECT of temperature on fish reproduction , *CLIMATE change , *FISH spawning , *FISH populations , *LAKES , *ATHERINOPSIDAE - Abstract
It is well known that water temperature directly affects fish reproduction. The aim of this study was to develop a predictive model to determine water temperature conditions on a typical Pampas shallow lake ( Chascomús, 35°36′S, 58°02′W) from local climate variables (specifically air temperature and rainfall). In addition, this model was used to assess the variability of local climate and water temperature conditions in this lake over the last 47 years, and predict possible effects on pejerrey reproductive phenology. The temperature model showed a good fit demonstrating a direct influence of the local climate into the lake water temperature. As consequence of a demonstrated warming in Chascomús City, an average increase of 1.4°C was evident in Chascomús lake over the analyzed period, which was mainly due to a thermal increase during the warmer seasons (spring, summer, and autumn). This pattern of warming drove to a shortening in the pejerrey spawning season length, estimating a decrease of 19 days over the period of 47 years. Thus, this study showed that a tight association between the climate variability and the change in fish reproductive phenology can occur in species inhabiting shallow lakes. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
49. Impact of water salinity on Odontesthes bonariensis (Actinopterygii, Atherinopsidae) fisheries in Chasicó Lake (Argentina).
- Author
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Berasain, Gustavo, Colautti, Darío, Lenicov, Mauricio, Argemi, Federico, Bohn, Vanesa, and Miranda, Leandro
- Subjects
- *
ODONTESTHES bonariensis , *EFFECT of saline waters on fishes , *EFFECT of temperature on fishes , *FISH reproduction , *CLIMATE change , *LAKES , *ATHERINOPSIDAE - Abstract
Odontesthes bonariensis is an inland water fish from the Pampas region, valued due to the quality of its flesh and its attractiveness as a game fish. Chasicó Lake located in the south of the pampean region is appreciated by fishermen due to O. bonariensis abundance. However, in the last year, a reduction in their catches was recorded. In this work, it was analyzed the changes of O. bonariensis biomass in relation to climate change and salinity in Chasicó Lake from 1997 to 2013. From 2004 to 2013, when a dry period began, a reduction in lake area (68.1-47.4 km) and an increase in salinity (18.9-41.5 g l) were observed. O. bonariensis catches showed a significant decrease in the same period as a result of salinity increments. Possibly, at high salinity, O. bonariensis may still develop but with an impaired reproduction and limited embryo and juvenile survival. In conclusion, after 2004, the fishery quality in Chasicó Lake showed a decreasing trend from the maximum registered in the Pampas lakes. This was in agreement with a marked decrease in the lake area which in turn increased water salinity up to levels close to the O. bonariensis tolerance limit. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
50. Temperature and photoperiod effects on sex determination in a fish.
- Author
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Brown, Elizabeth E., Baumann, Hannes, and Conover, David O.
- Subjects
- *
PHOTOPERIODISM , *EFFECT of light on fishes , *FISH physiology , *CALIFORNIA grunion , *LEURESTHES , *FISHES - Abstract
In some gonochoristic species, sex is influenced not only by genotype at conception but also by the environment that offspring experience during early ontogeny (termed environmental sex determination or ESD). ESD is thought to be adaptive when seasonal variations in environmental conditions provide a sex-specific fitness advantage. In vertebrates, temperature is the most common determinant of sex, and seasonal variation in temperature serves as a temporal cue of environmental quality such as length of the growing season. Some environments, however, lack strong seasonal temperature fluctuations and other cues, particularly photoperiod, may provide a more reliable indicator of the environment offspring enter. We tested this hypothesis by rearing the offspring of the California grunion ( Leuresthes tenuis , Ayres), which experiences low seasonal temperature variation in nature, under common garden conditions at three temperature and two photoperiod treatments. Our experiments revealed that both temperature and photoperiod significantly affected sex ratios in L. tenuis . More females were produced at cooler temperatures and longer day lengths, which is consistent with female-biased sex ratios early in the breeding season, and likely adaptive through increased female size and fecundity. To our knowledge, this is the first documented case of photoperiod-dependent sex determination in a gonochoristic vertebrate. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
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