2,463 results on '"SALTWATER fishing"'
Search Results
102. OPEN JOINT STOCK COMPANY VLADIVOSTOK SEA FISHING PORT invites tenders for Purchase of a 1C License for 300 Workstations
- Subjects
Ports ,Saltwater fishing ,News, opinion and commentary - Abstract
OPEN JOINT STOCK COMPANY VLADIVOSTOK SEA FISHING PORT, Russian Federation has invited tenders for Purchase of a 1C License for 300 Workstations. Tender Notice No: 32413847252 Deadline: August 6, 2024 [...] more...
- Published
- 2024
103. Small-Scale Marine Fishers' Possession of Fishing Vessels and Their Impact on Net Income Levels: A Case Study in Takalar District, South Sulawesi Province, Indonesia.
- Author
-
Muslim, Ahmad Imam, Fujimura, Miho, Kazunari, Tsuji, and Salam, Muslim
- Subjects
- *
CORPORATE profits , *FISHING , *SALTWATER fishing , *VARIABLE costs , *MARINE fishes , *SMALL-scale fisheries - Abstract
Over the last two decades, the growth of the fisheries sector in Indonesia has shown an increasing trend; however, behind the rapid development of this sector, the role of small-scale fisheries as one of the main actors supporting the whole industry is often neglected. They remain poor and continue to conduct fishing activities traditionally. Therefore, this study aims to describe the real situation of small-scale fishers, analyzing the fishers' ownership of the boat they use, analyzing their income level to reveal their poverty status, and analyzing the factors affecting their income. The regression analysis results indicate that boat category, sea fish catch, fish selling price, fixed costs, and variable costs have significant effects on fishers' net incomes. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
104. Strengthening Taiwan–Philippines Ties: Forging a Fisheries Cooperation in Shared Waters under the WCPFC Framework.
- Author
-
Liu, Wen-Hong, Fabilane, Johonsan, and Hsu, Wen-Kai
- Subjects
- *
FISHERY resources , *MARITIME boundaries , *FISHERY laws , *COOPERATION , *SALTWATER fishing , *FISHERIES - Abstract
Studies have shown the abundance of fisheries resources in the waters of the northern part of the Philippines bordering southern Taiwan. However, discrepancies in legal frameworks, enforcement mechanisms, and cultural practices, as well as maritime boundary issues, contribute to complexities in collaboration. This paper thus aims to provide an understanding into the intricacies and challenges faced by both countries in managing their shared fishing resources. By analyzing the relevant international laws and instruments on fisheries cooperation, the paper shows what coastal states and entities fishing in the high seas could do to manage and conserve fishery resources in disputed areas. Existing fisheries agreements in the region such as the Taiwan–Japan Fisheries Cooperation provide a template of the kind of cooperation that can be concluded within the overlapping waters of both nations. Results of the analysis show how important it is for both nations to acknowledge the significance of fisheries cooperation in the overlapping waters. By recognizing the mutual benefits of sustainable resource management through peaceful dialogue, establishing a fisheries cooperation under the legal framework of the WCPFC is the logical solution. The findings contribute to understanding the complexities of cross-border fisheries cooperation and provide valuable insights for policymakers and stakeholders in the region. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
105. Links between the timing of life‐history transitions and dietary and morphological variation during early life history in the sand goby, Pomatoschistus minutus.
- Author
-
Jensen, Mikkel, Nielsen, Peter J., and Wilson, G. Glenn
- Subjects
- *
LIFE history theory , *GOBIIDAE , *MARINE fishes , *AMPHIPODA , *PREY availability , *POLYCHAETA , *SALTWATER fishing - Abstract
Bipartite life histories involve a suite of morphological changes that support the pelagic to demersal transition and an expanded range of prey options and microhabitats. Pelagic individuals are thought to shift (settle) to their preferred benthic habitat at the earliest opportunity once they have attained a minimum level of morphological competency to access their new environment. In theory, early changes in larval morphology (collectively termed 'metamorphosis'), habitat and diet—a measure of habitat‐use—ought to be synchronous. Yet relationships may be decoupled by factors linked to behaviour, prey availability or morphological complexity, and few descriptions exist to allow such synchrony to be assessed. The sand goby, Pomatoschistus minutus, is a common coastal fish across north‐western Europe, with a size at larval metamorphosis and settlement of around 10 and 16–18 mm standard length (SL), respectively. We sampled shoreline larval and juvenile populations to examine relationships between morphology, diet and life stage. Prey diversity increased with body length; however, dietary change was clearest at 16–18 mm SL, with a reduction in calanoid copepods and shift to larger prey such as Nereis polychaetes and mysid and amphipod crustacea. Early growth in five prey capture and processing morphologies was rapid. Four of these showed a subsequent marked shift to slower growth, but none of these changes were aligned with size at metamorphosis and only that of mouth width coincided with body size at settlement. Early life history in P. minutus appears geared towards a protracted morphological reorganization prior to demersal life and an alternative suite of prey resources. Larval metamorphosis seems to be of limited consequence in this regard. Comparable studies of other Baltic Sea fishes would confirm whether these dynamics relate to shared environmental pressures or to factors intrinsic to P. minutus biology. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
106. Bilateral fluctuation asymmetry of otoliths of Collichthys lucidus in different functional areas of Haizhou Bay.
- Author
-
Gao, Shike, Zhang, Xiao, Shu, Ruilin, Zhang, Shuo, Lu, Jikun, and Fu, Guanghui
- Subjects
- *
ARTIFICIAL reefs , *OTOLITHS , *FISH growth , *FISH development , *NATURE reserves , *SALTWATER fishing - Abstract
The fluctuating asymmetry (FA) of fish otoliths can reflect the difference in the growth and development of fish in sea areas greatly affected by environmental pressure, thus enabling the assessment of different habitats. In this study, using 113 Collichthys lucidus samples collected from different functional areas (estuary area, aquaculture area, artificial reef area and natural area) in Haizhou Bay, the square coefficient of asymmetry variation (CV2a) of four characters (length, width, perimeter and area) of the left and right sagittal otoliths was calculated. The results showed that the CV2a value of otolith width was the lowest and that of otolith length was the highest. The CV2a value had no obvious regularity with increasing fish body length. In addition, the CV2a values of the four characteristics reached their lowest values in the artificial reef area, indicating that the construction of marine ranching dominated by artificial reefs may partly improve the aquatic environment in this functional area. We consider that the otolith FA of C. lucidus can be used as a characteristic of environmental stress between different areas/regions/habitats. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
107. Amelogenin and alkaline phosphatase expression in ameloblast after saltwater fish consumption in pregnant mice (Mus musculus).
- Author
-
Christiono, Sandy, Pradopo, Seno, Sudiana, I. Ketut, Hutami, Islamy Rahma, Mayangsari, Regilia Shinta, Rochmah, Yayun Siti, and Ibrahim, Zurairah
- Subjects
AMELOGENIN ,MARINE fishes ,SALTWATER fishing ,MICE ,AMELOGENESIS ,ALKALINE phosphatase ,MITOGEN-activated protein kinases ,CORRECTIVE orthodontics - Published
- 2023
- Full Text
- View/download PDF
108. Host-associated and Environmental Microbiomes in an Open-Sea Mediterranean Gilthead Sea Bream Fish Farm.
- Author
-
Quero, Grazia Marina, Piredda, Roberta, Basili, Marco, Maricchiolo, Giulia, Mirto, Simone, Manini, Elena, Seyfarth, Anne Mette, Candela, Marco, and Luna, Gian Marco
- Subjects
- *
FISH farming , *SPARUS aurata , *SALTWATER fishing , *MARINE fishes , *NUCLEOTIDE sequencing - Abstract
Gilthead seabream is among the most important farmed fish species in the Mediterranean Sea. Several approaches are currently applied to assure a lower impact of diseases and higher productivity, including the exploration of the fish microbiome and its manipulation as a sustainable alternative to improve aquaculture practices. Here, using 16S rRNA gene high-throughput sequencing, we explored the microbiome of farmed seabream to assess similarities and differences among microbial assemblages associated to different tissues and compare them with those in the surrounding environment. Seabream had distinct associated microbiomes according to the tissue and compared to the marine environment. The gut hosted the most diverse microbiome; different sets of dominant ASVs characterized the environmental and fish samples. The similarity between fish and environmental microbiomes was higher in seawater than sediment (up to 7.8 times), and the highest similarity (3.9%) was observed between gill and seawater, suggesting that gills are more closely interacting with the environment. We finally analyzed the potential connections occurring among microbiomes. These connections were relatively low among the host's tissues and, in particular, between the gut and the others fish-related microbiomes; other tissues, including skin and gills, were found to be the most connected microbiomes. Our results suggest that, in mariculture, seabream microbiomes reflect only partially those in their surrounding environment and that the host is the primary driver shaping the seabream microbiome. These data provide a step forward to understand the role of the microbiome in farmed fish and farming environments, useful to enhance disease control, fish health, and environmental sustainability. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
109. Morphological and molecular characterization of Hysterothylacium larval morphotypes (Nematoda: Raphidascarididae) infecting edible marine fish in the Black Sea.
- Author
-
Gelen, Muhammet Yavuz and Pekmezci, Gokmen Zafer
- Subjects
- *
ENGRAULIS encrasicolus , *SALTWATER fishing , *MARINE fishes , *MACKERELS , *MITOCHONDRIAL DNA , *PELAGIC fishes , *RECOMBINANT DNA - Abstract
The morphological and molecular identification of Hysterothylacium larval morphotypes in the Black Sea remains unresolved and incomplete. The aim of current study was to provide a detailed morphological identification with rDNA whole ITS (ITS‒1, 5.8S subunit, ITS‒2) and mtDNA cox2 sequences data of Hysterothylacium larval morphotypes infecting four commonly edible marine fish species, including European anchovy, Engraulis encrasicolus (L.), horse mackerel, Trachurus trachurus (L.), whiting, Merlangius merlangus (L.), and red mullet, Mullus barbatus ponticus (E.) in the Black Sea (FAO fishing area 37.4.2). Hysterothylacium larval morphotypes were morphologically classified, followed by whole ITS and cox2 sequencing. Four Hysterothylacium larval morphotypes, III, IV, VIII, and IX, are described based on morphological and molecular data. The present study provides the first study reporting whole ITS and cox2 sequences for Hysterothylacium larval morphotypes III, IV, VIII and III, IV, VIII, IX, respectively, in the Black Sea. Here, we offer a foundation for future research on the distribution, morphologic and molecular identification of Hysterothylacium larval morphotypes infecting edible some marine fish in the Black Sea. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
110. An In Vitro Comparison of the Digestibility and Gastrointestinal Fate of Scallops and Plant-Based Scallop Analogs.
- Author
-
Zhang, Zhiyun, Qin, Dingkui, Kobata, Kanon, Rao, Jiajia, Lu, Jiakai, and McClements, David Julian
- Subjects
SEAFOOD ,SCALLOPS ,PEA proteins ,PLANT proteins ,SALTWATER fishing ,ENVIRONMENTAL degradation - Abstract
Concerns exist regarding the negative environmental impact and health risks associated with ocean fishing and aquaculture, such as stock depletion, pollution, biodiversity loss, and toxin presence. To address these concerns, plant-based seafood analogs are being developed. Our previous study successfully created plant-based scallop analogs using pea proteins and citrus pectin, resembling real scallops in appearance and texture. This study focuses on comparing the digestive fate of these analogs to real scallops, as it can impact their nutritional properties. Using an in vitro digestion model (INFOGEST), we simulated oral, gastric, and small intestinal conditions. The analysis revealed differences in the microstructure, physicochemical properties, and protein digestibility between the plant-based scallops and real scallops. The particle size and charge followed the following similar trends for both types of scallops: the particle size decreased from the mouth to the stomach to the small intestine; the particles were negative in the mouth, positive in the stomach, and negative in the small intestine. The protein digestibility of the plant-based scallops was considerably lower than that of real scallops. For instance, around 18.8% and 61.4% of protein was digested in the stomach and small intestine phases for the real scallop (80.2% total digestion), whereas around 8.7% and 47.7% of the protein was digested for the plant-based scallop (56.4% total digestion). The lower digestibility of the plant-based scallops may have been due to differences in the protein structure, the presence of dietary fibers (pectin), or antinutritional factors in the plant proteins. These findings are crucial for developing more sustainable next-generation plant-based seafood analogs. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
111. The Danube Delta: The Achilles Heel of Danube River–Danube Delta–Black Sea Region Fish Diversity under a Black Sea Impact Scenario Due to Sea Level Rise—A Prospective Review.
- Author
-
Bănăduc, Doru, Afanasyev, Sergey, Akeroyd, John Robert, Năstase, Aurel, Năvodaru, Ion, Tofan, Lucica, and Curtean-Bănăduc, Angela
- Subjects
- *
SALTWATER fishing , *SEA level , *MARINE fishes , *BIOTIC communities , *NUMBERS of species , *FISH diversity , *FISH populations , *CLIMATE change - Abstract
The Danube Delta is one of Earth's biodiversity hotspots and includes many endemic, rare, and important species of both major conservation and economic value. This unique complex of ecosystems also plays a key role for Danube River and Black Sea fish fauna through its role as a natural safe buffer, shelter, feeding, reproduction, and smooth transitional area for a large number of fish species. Climate change is inducing a progressive sea level rise in the Black Sea, a fact that is expected to impact the delta's key complex and dynamic habitats, biocoenoses, and associated biota, and last but not least the key taxonomic group, namely, fish. Around one-third of the fish species of this delta will be greatly affected, sometimes negatively, by this climate change scenario, another one-third to a lesser extent, and the final one-third not at all. The ecological positive feedback of fish can stimulate environmental change and is expected to be responsible for changes within Danube Delta ecosystems, and also for the near Danube River and Black Sea diverse matrix of aquatic and semi-aquatic ecosystems. Sea level rise in the Black Sea is considered to have been one of the main stress factors of the Danube Delta fish fauna in the past, and is likely to be the case in the future. In this spatio-temporal dynamic context, for the fish species under threat and risk, in situ-adapted management measures are highly required. The current work brings for the first time such a prospective knowledge about the potential impact on Danube River–Danube Delta–Black Sea coast fish diversity in the potential climate change–sea level rise scenario. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
112. Effects of warming and fishing on Atlantic sea scallop (Placopecten magellanicus) size structure in the Mid-Atlantic rotationally closed areas.
- Author
-
Zang, Z, Ji, R, Hart, D R, Jin, D, Chen, C, Liu, Y, and Davis, C S
- Subjects
- *
EFFECT of temperature on fishes , *SCALLOPS , *SALTWATER fishing , *FISHERIES , *MARINE fishes , *FISH mortality , *FISHERY management , *FISH populations - Abstract
The Atlantic sea scallop supports one of the most lucrative fisheries on the Northeast U.S. shelf. Understanding the interannual variability of sea scallop size structure and associated drivers is critically important for projecting the response of population dynamics to climate change and designing coherent fishery management strategies. In this study, we constructed time series of sea scallop size structures in three rotationally closed areas in the Mid-Atlantic Bight (MAB) and decomposed their total variances using the variance partitioning method. The results suggested that the interannual variances in sea scallop size structures were associated more with thermal stress in regions shallower than 60 m but more with fishing mortality in regions deeper than 60 m. The percentages of small (large) size groups increased (decreased) with elevated thermal stress and fishing pressure. We adopted a scope for growth model to build a mechanistic link between temperature and sea scallop size. Model results suggested a gradual decrease in maximum shell height and habitat contraction under warming. This study quantified the relative contributions of thermal stress and fishing mortality to the variance of scallop size structure and discussed the need for adaptive management plans to mitigate potential socioeconomic impacts caused by size structure changes. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
113. Biochemical indicators of contamination in the coastal area of Callao, Peru.
- Author
-
Alvariño, Lorena, Saez, Gloria, Machado da Silva Acioly, Thiago, Carvalho Viana, Diego, and Iannacone, José
- Subjects
- *
ASPARTATE aminotransferase , *AGRICULTURAL wastes , *SALTWATER fishing , *SPRING , *MARINE fishes , *COASTS - Abstract
Callao Bay is strategically important for the industrial and tourist sector, serving as a recreational space for a large part of the population of Chalaca. However, even so, it permanently receives discharges of effluents, chemical products, and residues from oil refineries, hydrocarbons, and domestic and agricultural residues. The objective of this research is to evaluate biochemical indicators in fish against contaminants in the coastal area of Callao, Peru. The seasonal criterion (collections in autumn, spring, summer, and winter) and the spatial criterion (collections at four points along the coastal zone of Callao) were considered. Isacia conceptionis and Odontesthes regia showed relatively high concentration values of the enzyme alanine aminotransferase (ALT). Specifically, ALT is an enzyme used to assess liver function. Sciaena deliciosa showed high levels of alkaline phosphatase (ALP) in the liver but low values of aspartate aminotransferase (AST) and ALT. In addition, ALP is an indicator of renal impairment; in saltwater fish, its increase may be related to the increase in water salinity. The fish with the highest trophic level among the marine fish analyzed was O. regia. This fish presented the lowest values of ALP in the liver and muscle ALP and AChE (acetylcholinesterase) in the liver and the highest values for AST. S. deliciosa and O. regia are species that can be used in environmental biomonitoring, showing variation to the biomarkers studied because they have shown changes in the values of biochemical markers, mainly AChE of the brain and muscle, and in the protein concentrations of muscle, brain, and liver between seasons and sampling points in Callao Bay. It is concluded that the marine fish models evaluated are very useful in assessing contamination in Callao Bay. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
114. Excessive consumption of certain sea fishes and mushrooms may pose significant health risks.
- Author
-
Seth, M., Mondal, P., Ghosh, D., and Mukhopadhyay, S. K.
- Subjects
MARINE fishes ,SALTWATER fishing ,MUSHROOMS ,FOOD consumption - Published
- 2023
- Full Text
- View/download PDF
115. Quality indicators of fish from the water of the southern region of Ukraine.
- Author
-
Holubenko, O. O., Tarasenko, L. O., and Rud, V. O.
- Subjects
FISH farming ,CARP ,MARINE fishes ,SALTWATER fishing ,FISH ponds ,WATER sampling - Abstract
A study of the fish caught in the reservoirs of the Khadzhibey estuary (Odesa region) was conducted in order to determine its quality and safety according to microbiological indicators. No pathogenic or conditionally pathogenic microorganisms were found in all the fish samples studied – mirror carp (Cyprinus carpio) and round goby (Neogobius melanostomus). During the study of physico-chemical indicators of water quality and safety of the estuary, water samples were taken for the content of pesticides, insecticides and heavy metals. The content of cadmium, copper, lead and mercury does not exceed the permissible level for fish farms, zinc exceeds the maximum permissible concentration by 2.3 – 3.0 % (depending on the period of the year). The insecticide dichlorodiphenyltrichloromethylmethane was found in the water, the content of which exceeds the maximum allowable concentration for sea fishing ponds by 18 %, and the pesticide betahexochlorocyclohexane – by 5.2 %. It has been studied and established that the fish caught in the estuary, according to its microbiological and physicochemical indicators, is safe, does not pose a threat to the health of people and animals, and is suitable for further use and consumption. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
116. TOTALLY TUBULAR.
- Author
-
HENDRICKS, JIM
- Subjects
FISHING lures ,BASS fishing ,SALTWATER fishing ,BAIT fishing ,MARINE fishes ,FLAVOR - Abstract
Opposite: West Coast-style tube baits (top left) are effective for a wide range of gamefish, but these lures are particularly popular among anglers pursuing barred sand bass (top right) and calico bass (bottom). TOURNAMENT SUCCESS To promote his lures, Gierlich and his company team participate in a number of Southern California saltwater bass tournaments (targeting all three species of bass), and they almost always place near the top in each event. Features They look simple and kind of stupid, so much so that skeptics need convincing that this new style of West Coast tube lure can catch fish. [Extracted from the article] more...
- Published
- 2023
117. Temporal analysis of the Indian scad (Decapterus spp) catches in the Sulawesi sea based on sea surface temperature.
- Author
-
Hatidja, Djoni, Patty, Wilhelmina, and Kekenusa, John S.
- Subjects
- *
OCEAN temperature , *HARBORS , *SALTWATER fishing - Abstract
The purpose of this study was to analyze the temporal distribution of the catch of Indian scad (Decapterus spp) in the Sulawesi Sea based on sea surface temperature (SST). The series of activities in this study, namely: secondary data collection consisting of downloading SST images from the Aqua MODIS satellite. The SST image data was taken from the Aqua MODIS level 3 satellite with a resolution of 4 km x 4 km (pixels), monthly images for 2017-2019 (3 years). Data on the catch of Indian scad fish every month in 2017-2019 was taken at the Bitung ocean fishing port (OFP) and the Tumumpa coastal fishing port (CFP). The data obtained were analyzed using: descriptive analysis and a 1-factor completely randomized design. The average sea surface temperature (SST) in the Sulawesi Sea in 2017-2019 ranges from 28.583-31.341°C. The lowest average SST occurred in the West season in 2019, while the highest average SST occurred in the second transitional season in 2019. The average SST in the Sulawesi Sea in 2017 was not significantly different from the average SST in 2018 and 2019. The catch of Indian scad (Decapterus spp) in the Sulawesi Sea from 2017 increased significantly in 2019 with a total catch of (891.6 ± 18.5) tons, (784.1 ± 15.0) tons and (1322.5 ± 46.5) tons. The highest number of Indian scad catches in 2017 occurred in the East season, which was (98.212 ± 17.297) tons/month with an average SST 30.092-30.876°C. The highest number of Indian scad catches in 2018 occurred in the East season and the second transitional season, respectively (75.155 ± 5.937) tons/month and (75.860 ± 11.029) tons/month with an average SST 30.053-30.734°C. The highest number of Indian scad fish catches in 2019 occurred in the first transition season, which was (143.548 ± 27.006) tons/month with an average SST 29.371-30.878°C. The highest Indian scad catches in the Sulawesi Sea in 2017-2019 generally occurred in the East season and the first transitional season with an average SST 29.371-30.878°C. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
118. Japan's Nissui Group buys facility in France for tapas expansion.
- Author
-
Coyne, Andy
- Subjects
FOOD industry ,SALTWATER fishing ,PRODUCTION planning ,SEAFOOD ,SHRIMPS - Abstract
Japanese seafood company Nissui Group has purchased a facility in France to meet the growing demand for tapas-style seafood products. The facility, acquired through Nissui's subsidiary Miti, will be used to manufacture tapas products such as octopus, squid, and sardines. Nissui aims to develop tapas as a key part of its business, selling in France and neighboring countries. This acquisition is part of Nissui's larger strategy to expand its international operations and become a global leader in fried seafood. [Extracted from the article] more...
- Published
- 2024
119. A Selected Review of Impacts of Ocean Deoxygenation on Fish and Fisheries.
- Author
-
Kim, Hongsik, Franco, Ana C., and Sumaila, U. Rashid
- Subjects
- *
SALTWATER fishing , *FISHERIES , *MARINE biology , *LITERATURE reviews , *ECOLOGICAL disturbances , *MARINE ecology , *OCEAN , *HABITATS - Abstract
Oxygen is crucial for the survival of marine species. Yet, the ocean has experienced a loss of approximately 2% of its oxygen inventory since the last century, resulting in adverse impacts on marine life and ecosystems. In particular, changes in the gap between the supply and demand for dissolved oxygen lead to physiological and ecological variations, which cause alterations in habitats and food webs for fish and ecosystem services. These changes vary over time and by region, and the heterogeneous characteristics of marine species bring about non-linear consequences to human society. Despite this, identifying the potential ripple effects of deoxygenation on human society is challenging due to the integrated impacts of other stressors, such as global warming and ocean acidification, and their varying changes depending on environmental conditions and regions, such as upwelling and eutrophication. Therefore, we conducted a literature review on ocean deoxygenation and its effects on fish dynamics and the ecosystem, with a focus on the environmental and societal impact, to present crucial considerations and pathways for future research on ocean deoxygenation. We found that quantitative approaches are necessary to assess the dynamic changes under deoxygenation, and the consequent effects on marine ecosystems should be verified to exploit the natural resources from the ocean. One of the most reliable approaches to quantifying the ripple impacts of deoxygenation is to model spatial and temporal changes with other climate stressors, forming a global network encompassing socio-economic and regional effects of this global change to facilitate and improve capabilities to address the impacts of ocean deoxygenation. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
120. Invasive Fish and Sea Urchins Drive the Status of Canopy Forming Macroalgae in the Eastern Mediterranean.
- Author
-
Nikolaou, Athanasios, Tsirintanis, Konstantinos, Rilov, Gil, and Katsanevakis, Stelios
- Subjects
- *
SEA urchins , *MARINE fishes , *MARINE algae , *SALTWATER fishing , *BROWN algae , *ALGAL communities - Abstract
Simple Summary: The Mediterranean marine forests of canopy brown algae are important habitats that have been in decline in recent decades. This study examines the distribution and status of macroalgal communities in relation to the populations of the main herbivores (fish and sea urchins) in the eastern Mediterranean. In the warmer South Aegean and Levantine Sea, invasive herbivorous fish seem to drive canopy algae towards shallower waters, while native sea urchins have become rare, indicating population collapses. In the North Aegean, macroalgal forests were observed in intermediate depths, and native sea urchins still thrive and appear to exert grazing pressure on macroalgal forests in shallower waters. Our results provide useful information for policymakers and help guide future research and conservation efforts. Canopy-forming macroalgae, such as Cystoseira sensu lato, increase the three-dimensional complexity and spatial heterogeneity of rocky reefs, enhancing biodiversity and productivity in coastal areas. Extensive loss of canopy algae has been recorded in recent decades throughout the Mediterranean Sea due to various anthropogenic pressures. In this study, we assessed the biomass of fish assemblages, sea urchin density, and the vertical distribution of macroalgal communities in the Aegean and Levantine Seas. The herbivore fish biomass was significantly higher in the South Aegean and Levantine compared to the North Aegean. Very low sea urchin densities suggest local collapses in the South Aegean and the Levantine. In most sites in the South Aegean and the Levantine, the ecological status of macroalgal communities was low or very low at depths deeper than 2 m, with limited or no canopy algae. In many sites, canopy algae were restricted to a very narrow, shallow zone, where grazing pressure may be limited due to harsh hydrodynamic conditions. Using Generalized Linear Mixed Models, we demonstrated that the presence of canopy algae is negatively correlated with the biomass of the invasive Siganus spp. and sea urchins. The loss of Cystoseira s.l. forests is alarming, and urgent conservation actions are needed. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
121. 浮鱼礁发展现状及其在南海海洋牧场中的应用展望.
- Author
-
冯博轩, 许 强, 孙春阳, 高 菲, 王爱民, and 朱宇鹏
- Subjects
- *
MARINE resources , *FISHERY resources , *ARTIFICIAL reefs , *SALTWATER fishing , *MARINE habitats , *FISHERIES , *CORAL reef conservation - Abstract
The development of modern tropical marine ranching is an important means to conserve fishery resources and protect the marine ecological environment in the South China Sea, which has far-reaching significance for the conservation and scientific utilization of fishery resources in the South China Sea. Artificial reefs are one of the important tools to create marine ranching habitats. However,due to the deep water in the South China Sea,conventional reefs are difficult to play a role,whereas floating reefs can make use of the water space in the middle and upper layers,and are the best facilities to create deep water fishing grounds. This study reviews the types,functions,and application scenarios of floating fish reefs,summarizes relevant research and current status both domestically and internationally,and looks forward to the future of floating fish reefs in the South China Sea,including their role in information-based monitoring of ocean ranching,recreational fishing, conservation of upper-middle level fishery resources,and the construction of offshore ocean ranching. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
122. The Fish Tanks of the Mediterranean Sea.
- Author
-
Oikonomou, Paris, Karkani, Anna, Evelpidou, Niki, Kampolis, Isidoros, and Spada, Giorgio
- Subjects
ARCHITECTURAL details ,SALTWATER fishing ,DATABASES ,COASTS ,MARINE fishes ,CLIMATE change - Abstract
Roman fish tanks are found in various coastal regions of the Mediterranean, although the vast majority is found on the Tyrrhenian coast of Italy. In this work, a database was developed with information on 62 fish tanks along the Mediterranean coasts to document and compare their features and characteristics. The analysis of the developed database from the Mediterranean fish tanks has shown that, among the 62 fish tanks, ~56% were cut into the rock, indicating that this type of construction was the most popular at that time and probably had advantages over the others. Fish tanks as sea level indicators can provide accurate data on the sea level 2000 years ago. Well-preserved installations with prominent architectural features have a crucial role in determining the paleo sea level. The architectural elements that are mostly used in fish tanks for paleo sea level reconstructions are the crepido, cataractae and channels. Besides the scientific importance of the fish tanks as sea level markers, they also have great cultural and historical significance. Fish tanks can be promoted as heritage monuments and scholarly models to strengthen awareness about climate change, sea level rise and its consequences. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
123. Susceptibility of Pallid Sturgeon to viral hemorrhagic septicemia virus genotype IVb.
- Author
-
Hopper, Lacey R., Glenn, Jolene A., MacConnell, Elizabeth, Winton, James R., and Emmenegger, Eveline J.
- Subjects
VIRAL hemorrhagic septicemia ,STURGEONS ,MARINE fishes ,PLANT viruses ,FISH feeds ,FRESHWATER fishes ,SALTWATER fishing - Abstract
Objective: Viral hemorrhagic septicemia virus (VHSV) is an aquatic rhabdovirus causing severe disease in freshwater and saltwater fish species. The susceptibility of endangered Pallid Sturgeon Scaphirhynchus albus to VHSV genotype IVb (VHSV‐IVb) infection was investigated. Methods: An in vitro assessment using two Pallid Sturgeon cell lines derived from skin and spleen tissue and in vivo evaluation of juvenile Pallid Sturgeon after exposure to VHSV‐IVb were performed. Result: Plaque assay and RT‐PCR results confirmed VHSV‐IVb replication in Pallid Sturgeon cell lines. Sturgeon were also susceptible to VHSV‐IVb infection after immersion and injection exposures during laboratory experiments. However, after widespread mortality occurred in all treatment groups, including negative control fish, it was determined that the Pallid Sturgeon stock fish were infected with Missouri River sturgeon iridovirus (MRSIV) prior to experimental challenge. Nevertheless, mortalities were equal or higher among VHSV‐exposed fish than among negative controls (MRSIV infected), and histopathological assessments indicated reduced hematopoietic cells in spleen and kidney tissues and hemorrhage in the gastrointestinal organs only in fish from the VHSV treatment. Conclusion: These results indicate that Pallid Sturgeon is a susceptible host for VHSV‐IVb, but the degree of pathogenicity was confounded by the underlying MRSIV infection. Research comparing susceptibility of specific pathogen‐free and MRSIV‐infected fish to VHSV‐IVb is needed to accurately assess the vulnerability of Pallid Sturgeon to VHSV‐IVb. Impact statementThis first investigation of Pallid Sturgeon susceptibility to VHSV indicated they could be infected with the highly lethal VHSV‐IVb strain; however, because the tested fish were already infected with another disease‐causing virus the level of susceptibility of Pallid Sturgeon to VHSV‐IVb alone needs to be studied further. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
124. Fishing Behavior Detection and Analysis of Squid Fishing Vessel Based on Multiscale Trajectory Characteristics.
- Author
-
Zhang, Fan, Yuan, Baoxin, Huang, Liang, Wen, Yuanqiao, Yang, Xue, Song, Rongxin, and van Gelder, Pieter
- Subjects
BEHAVIORAL assessment ,SALTWATER fishing ,FISHERY resources ,FISHING ,MARINE resources ,FISHERY management ,FISHERIES - Abstract
Accurate fishing activity detection from the trajectories of fishing vessels can not only achieve high-precision fishery management but also ensure the reasonable and sustainable development of marine fishery resources. This paper proposes a new method to detect fishing vessels' fishing activities based on the defined local dynamic parameters and global statistical characteristics of vessel trajectories. On a local scale, the stop points and points of interest (POIs) in the vessel trajectory are extracted. Voyage extraction can then be conducted on this basis. After that, multiple characteristics based on motion and morphology on a global scale are defined to construct a logistic regression model for fishing behavior detection. To verify the effectiveness and feasibility of the method, vessel trajectory data, and fishing log data collected from Chinese ocean squid fishing vessels in Argentine waters in 2020 are integrated for fishing operation detection. Multiple evaluation metrics show that the proposed method can provide robust and accurate recognition results. Moreover, further analysis of the temporal and spatial distribution and seasonal changes in squid fishing activities in Argentine waters has been performed. A more refined assessment of the fishing activities of individual fishing vessels can also be provided quantitatively. All the results above can benefit the regulation of fishing activities. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
125. Recalibrating the significance of the decline effect in fish ocean acidification research.
- Author
-
Esbaugh, Andrew J.
- Subjects
- *
OCEAN acidification , *SALTWATER fishing , *FISH declines - Abstract
The recently described decline effect in ocean acidification impacts on fish behaviour should not be equated with negligible effects. Here, existing mechanistic data are used to argue for continued research and cautions against "throwing the baby out with the bathwater." The recently described decline effect in ocean acidification impacts on fish behavior should not be equated with negligible effects. This Perspective article uses existing mechanistic data to argue for continued research and cautions against "throwing the baby out with the bathwater." [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
126. Transport-driven seasonal abundance of pelagic fishes in the Chukchi Sea observed with seafloor-mounted echosounders.
- Author
-
Levine, R M, De Robertis, A, Grünbaum, D, and Wilson, C D
- Subjects
- *
PELAGIC fishes , *MARINE fishes , *SALTWATER fishing , *SEASONS , *CODFISH , *SUMMER - Abstract
Recent summer surveys of the northeastern Chukchi Sea found pelagic fishes were dominated by large numbers of age-0 Arctic cod (Boreogadus saida , Gadidae) and walleye pollock (Gadus chalcogrammus , Gadidae), while adult fishes were comparatively scarce. The source and fate of these young fishes remain unclear, as sampling in this region is impeded by seasonal ice cover much of the year. Seafloor-mounted echosounders were deployed at three locations in the northeastern Chukchi Sea from 2017 to 2019 to determine the movement and seasonal variability of these age-0 gadids. These observations indicated that the abundance of pelagic fishes and community composition on the Chukchi Sea shelf were highly variable on seasonal time scales, with few fish present in winter. Tracking indicated that fish movements were strongly correlated with local currents. Fishes were primarily displaced to the northeast in summer and fall, with periodic reversals towards the southwest driven by changes in regional wind patterns. The flux of fishes past the moorings indicated that the prevailing northward currents transport a large proportion of the age-0 pelagic fishes present on the Chukchi shelf in summer to the northeast by fall, leading to relatively low abundances of age-1+fishes in this environment. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
127. Singing Fish in A Sea of Noise: Assessing the Impact of Anthropogenic Noise on Plainfin Midshipman Fish.
- Author
-
Woods, Mackenzie B.
- Subjects
- *
SALTWATER fishing , *MARINE fishes , *NOISE , *FISH physiology , *FISHERY processing , *CRUISE industry , *EFFECT of human beings on fishes , *MARINE parks & reserves - Abstract
I recently led a field study to assess how midshipman fish respond to motorboat noise while caring for eggs in their nests, using a real motorboat as a noise stimulus. I am studying the effect of motorboat noise on Plainfin Midshipman fish behavior and vocalizations - particularly their parental care, nest defense, and courtship. [Extracted from the article] more...
- Published
- 2023
- Full Text
- View/download PDF
128. Three-Dimensional Anatomy of the Early Eocene Whitephippus (Teleostei, Lampriformes) Documents Parallel Conquests of the Pelagic Environment by Multiple Teleost Lineages.
- Author
-
Davesne, Donald, Andrews, James V., Beckett, Hermione T., Giles, Sam, and Friedman, Matt
- Subjects
- *
EOCENE Epoch , *BRANCHIAL arch , *ANATOMY , *PALEOGENE , *OSTEICHTHYES , *SALTWATER fishing - Abstract
The early Eocene fossil assemblage of the London Clay (Southeastern England) is a key window to the early Paleogene diversification of teleost fishes in the open ocean. Despite their three-dimensional preservation that offers unique insight into skeletal anatomy, the London Clay fossils are still poorly described for the most part. †Whitephippus tamensis is a fossil teleost from this assemblage, known by several well-preserved specimens. Based on a complete description of the known material, including previously hidden structures (braincase, hyoid, and branchial arches) revealed through 3D microtomography, we reinterpret †Whitephippus as an early member of the teleost group Lampriformes. More specifically, the anatomy of †Whitephippus indicates that it is likely a member of the so-called 'pelagic clade' including modern opahs and oarfishes. This redescription of †Whitephippus provides the earliest definitive evidence of lampriforms conquering the pelagic environment, alongside numerous other teleost lineages. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
129. Effects of sea cucumber fishing on tropical seagrass productivity.
- Author
-
Watkins, Hannah V., Munger, Rachel B., and Côté, Isabelle M.
- Subjects
MARINE fishes ,SALTWATER fishing ,SEAGRASSES ,APOSTICHOPUS japonicus ,SEA cucumbers ,SPECIFIC gravity ,FIELD research - Abstract
Fishing can drive major ecological change in coastal ecosystems and is typically examined through top‐down trophic impacts. However, the massive removal of biomass can also disrupt key ecological bottom‐up processes, though how these effects shape ecosystems is poorly understood. Here, we examined the ecological roles of two species of commercially exploited sea cucumbers thought to promote primary productivity in nutrient‐poor environments through nutrient provisioning and sediment processing. Using a large‐scale field experiment, we tested whether simulated sea cucumber fishing affected seagrass productivity in a natural system comprising reef and seagrass patches that varied in abundance of vertebrate nutrient providers (i.e., fishes). Our findings were scale‐ and metric‐specific: while we could not detect a change in patch‐level seagrass productivity in response to simulated sea cucumber fishing, individual leaf extension rates were ~15% lower at sites where all sea cucumbers were removed, relative to the highest density, unfished sites. Interestingly, there was no concomitant effect of nutrients from the more abundant reef‐associated fishes, which contribute far more nutrients overall than sea cucumbers. This suggests that sea cucumbers are likely mediating seagrass growth through mechanisms other than direct nutrient provisioning, perhaps through processes associated with sediment processing. Our study demonstrates the potential consequences of under‐regulated and unmonitored sea cucumber fishing on foundation species like seagrasses, while highlighting the importance of taking a community‐based approach to these types of field experiments. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
130. Diversity and characteristics of commercial Red Sea fish species based on fish market survey: informing management to reduce the risk of overfishing.
- Author
-
Osman, Yassein A. and Samy‐Kamal, Mohamed
- Subjects
- *
SEAFOOD markets , *FISH surveys , *MARKET surveys , *SALTWATER fishing , *MARINE fishes , *FISHERIES , *FISH populations , *FISHES - Abstract
In small‐scale fisheries (SSFs), where the sampling of many small boats and landing sites sometimes is not practical, fish market surveys represent an alternative way to obtain key fisheries data. This study analyses the diversity and characteristics of commercial Red Sea fish species landed in the Egyptian coast, including family, species‐specific abundance, biomass, size and price by surveying the largest local fish market on the Egyptian Red Sea coast, over the course of a year (July 2021–June 2022) to also reflect any seasonality of these variables. Based on 53 survey visits, a total of 131,795 fish individuals, belonging to 111 species, and 22 families, were identified, recorded and measured. The analysis focused on the 60 most abundant species (104,420 individuals, 15 families). The surveys revealed that the most abundant families were Serranidae, Lethrinidae and Scaridae. Carangidae also was one of the most important families in terms of biomass. The most abundant species were Lethrinus mahsena, Sargocentron spiniferum and Lethrinus nebulosus. About 60% of revenue comes from the four families Serranidae, Lethrinidae, Scaridae and Lutjanidae. In terms of prices, the most expensive categories were species belonging to Serranidae, Lethrinidae and Lutjanidae families, such as Plectropomus pessuliferus marisrubri, Argyrops spinifer, L. nebulosus and Variola louti. The overall mean prices were higher in spring and summer months likely due to tourism flows. The mean size of many species, including the most valuable and abundant ones, is below the length of maturity. These results provide important benchmarks for monitoring future changes and shed important insights for fisheries management. Co‐organised Dutch auctions would provide reliable data when combined with a strict monitoring effort to avoid any sale of the catch outside these official auctions. Other monitoring tools and methods are also recommended in the discussion. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
131. Meta-analysis and health risk assessment of toxic heavy metals in muscles of commercial fishes in Caspian Sea.
- Author
-
Amerizadeh, Atefeh, Gholizadeh, Mohammad, and Karimi, Raheleh
- Subjects
HEAVY metals ,HEALTH risk assessment ,FISHERIES ,MARINE fishes ,SALTWATER fishing ,RANDOM effects model - Abstract
Heavy metals from contaminated seafood can have serious consequences for human health. Several studies on the amount of heavy metals in Caspian Sea fish have been conducted to ensure their food safety. This meta-analysis aimed to investigate the levels of five toxic heavy metals; Lead (Pb), Cadmium (Cd), Mercury (Hg), Chromium (Cr), and Arsenic (As) in muscles of commercial fishes of the Caspian Sea with assessing their health risk of developing oral cancer in terms of fish collection place and fish type. A systematic search was performed, and the random effect model was applied for meta-analysis. Finally, 14 studies with 30 different sets of results were included. Our results showed that the pooled estimates for Pb, Cd, Hg, Cr, and As were 0.65 mg/kg (0.52, 0.79), 0.08 mg/kg (0.07, 0.10), 0.11 mg/kg (0.07, 0.15), 1.77 mg/kg (1.26, 2.27), and 0.10 mg/kg (− 0.06, 0.26) respectively. The levels of Pb and Cd were higher than their (FAO/WHO) maximum limits. The Estimated Daily Intake (EDI) of Pb and Cd in Mazandaran, and Hg in Gilan were more than Total Daily Intake (TDI) limits. The consumers' non-carcinogenic risk (THQ) for Hg in Mazandaran and Gilan, and As in Gilan, was unsafe. Carcinogenic risk (CR) for Cr and Cd in all three provinces, and for As in Mazandaran and Gilan, was greater than 1*10 − 4 and was unsafe. The lowest and highest risk levels of oral cancer were for Rutilus kutum and Cyprinus carpio respectively. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
132. 基于北斗船位数据的南海外海灯光罩网渔船作业特征研究.
- Author
-
孙慧岩, 周艳波, 马胜伟, 田 骥, 徐景春, 刘智瑛, 毕洁婷, and 吴洽儿
- Subjects
SALTWATER fishing ,FISHERY management ,MARINE fishes ,FISHERS ,LONGITUDE - Abstract
Copyright of South China Fisheries Science is the property of South China Fisheries Science Editorial Department 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.) more...
- Published
- 2023
- Full Text
- View/download PDF
133. Salinity, not only temperature, drives tropical fish invasions in the Mediterranean Sea, and surface-only variables explain it better.
- Author
-
D'Amen, Manuela, Smeraldo, Sonia, and Azzurro, Ernesto
- Subjects
SEAWATER salinity ,GLOBAL warming ,SALINITY ,MARINE fishes ,GEOGRAPHICAL distribution of fishes ,SALTWATER fishing - Abstract
The increasing success of invasive warm water species is often explained as a direct consequence of a warming climate, but other environmental variables are seldomly taken into account. Here, running RandomForest models with many combinations of relatively uncorrelated environmental predictors, we investigate the factors influencing the distribution of Red Sea fishes in the Mediterranean Sea, which was invaded through the Suez Canal. Our results highlighted the fundamental role of salinity, not only temperature, in determining the distribution of these tropical species, with average values (primarily salinity and surface sea temperatures) performing the best of the respective groups. Noteworthy, models based on surface variables only resulted in higher evaluation scores than those including also bottom variables. These findings contribute to identifying the most relevant factors that explain tropical fish distribution in the Mediterranean Sea and provide advice to the selection of environmental variables in species distribution modeling. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
134. Charging Ahead.
- Author
-
Hendricks, Jim
- Subjects
BATTERY chargers ,LEAD-acid batteries ,ELECTRIC power ,SALTWATER fishing ,TECHNOLOGICAL innovations ,FISHING boats - Abstract
Marine battery chargers are essential for powering the increasing number of electrical systems on saltwater fishing boats. Brands like Dakota, Guest, Minn Kota, Noco, ProMariner, and Victron offer a range of marine chargers with advanced features and conveniences. These chargers are becoming smaller and more efficient, thanks to new electronic and digital technologies. When choosing a charger, it is important to consider factors such as waterproofing, battery-friendly features, selectable profiles for different battery types, voltage delivery, rate of charge, number of batteries, and charge monitoring capabilities. With advancements in charging technology, it is now easier than ever to keep marine battery systems in prime condition. [Extracted from the article] more...
- Published
- 2024
135. Fewer fish in a smaller sea: Young singles ditch dating apps for meaningful connections.
- Author
-
McCALLUM, BEKAH
- Subjects
- *
ONLINE dating mobile apps , *CHIEF financial officers , *SALTWATER fishing , *RATE of return on stocks , *ONLINE dating , *YOUNG adults - Published
- 2024
136. Fish in the Sea.
- Author
-
BRAITMAN, LAUREL
- Subjects
MARINE fishes ,SALTWATER fishing ,HARBORS ,FISHERIES ,FISH as food - Abstract
The article recounts the author's experience of going to the Aleutian Islands to report on bald eagles and unexpectedly finding love. The author, who had sworn off dating, meets a man named Josh who comes from a long line of commercial fishermen. They bond over their shared love of fishing and food, particularly a salmon dip that Josh makes. Despite their initial reservations, the author and Josh eventually get married, realizing that love and loss are intertwined. The article concludes with a recipe for the salmon dip. [Extracted from the article] more...
- Published
- 2024
137. Sci-Fly Specks.
- Author
-
Moore, Chester
- Subjects
SALTWATER fishing ,BROOK trout ,ATMOSPHERIC pressure ,BAIT fishing ,MARINE fishes - Abstract
The article titled "Sci-Fly Specks" discusses the concept of "Sci-Fly Fishing," which involves trying new and unconventional techniques for catching various species of fish, including speckled trout. The author shares their plan to experiment with using a small bone-colored popper with a fluorocarbon trailer rigged with a black/silver bead head to attract trout. They also mention their intention to target manmade canals that drop into ship channels for speckled trout fishing. The article encourages readers to share their own "Sci-Fly Fishing" strategies. [Extracted from the article] more...
- Published
- 2024
138. 12TH ANNUAL SALTWATER FISHING DAY HAPPENING AUGUST 10TH
- Subjects
Saltwater fishing ,Domestic relations ,News, opinion and commentary - Abstract
HARTFORD, CT -- The following information was released by the Connecticut Department of Energy and Environmental Protection (DEEP): Spend Time Outdoors With Friends And Family Catching Great Memories (And a [...] more...
- Published
- 2024
139. Return to Anchor Bay.
- Author
-
THROSSEL, JANINE
- Subjects
AQUATIC sports ,INFLATABLE boats ,SALTWATER fishing ,WETSUITS ,STARFISHES - Published
- 2023
140. Saltwater Fishing 101: Saltwater angling can be intimidating for beginners. But take comfort, angling's long-term learning curve is worth the effort.
- Author
-
DAVIS, TOM
- Subjects
SALTWATER fishing ,MARINE fishes ,FISHING ,SALMON fishing - Published
- 2023
141. NEW SALTWATER GEAR ROUND UP: CHECK OUT THIS LIST OF SALTWATER FISHING GEAR THAT YOU WON'T WANT TO PASS YOU BY.
- Author
-
DAVIS, TOM
- Subjects
SALTWATER fishing ,MARINE fishes ,SALINE waters ,SALMON fishing ,LURE fishing - Published
- 2023
142. OPEN JOINT STOCK COMPANY VLADIVOSTOK SEA FISHING PORT invites tenders for Purchasing Filters
- Subjects
Purchasing ,Ports -- Purchasing ,Saltwater fishing ,News, opinion and commentary - Abstract
OPEN JOINT STOCK COMPANY VLADIVOSTOK SEA FISHING PORT, Russian Federation has invited tenders for Purchasing Filters. Tender Notice No: 32413695058 Deadline: June 20, 2024 Copyright © 2011-2022 pivotalsources.com. All rights [...] more...
- Published
- 2024
143. MINISTRY OF OCEANS AND FISHERIES EAST SEA FISHERY MANAGEMENT GROUP invites tenders for Improvement of Deep-Sea Fishing Vessel Fishing Surveillance System Function in 2024
- Subjects
Fisheries ,Surveillance equipment ,Saltwater fishing ,Fish industry ,Fishery management ,News, opinion and commentary - Abstract
MINISTRY OF OCEANS AND FISHERIES EAST SEA FISHERY MANAGEMENT GROUP, South Korea has invited tenders for Improvement of Deep-Sea Fishing Vessel Fishing Surveillance System Function in 2024. Tender Notice No: [...] more...
- Published
- 2024
144. MINISTRY OF OCEANS AND FISHERIES EAST SEA FISHERY MANAGEMENT GROUP invites tenders for Deep-Sea Fishing Vessel Electronic Monitoring (Em) Program Model Development Service
- Subjects
Fisheries ,Saltwater fishing ,Fish industry ,Fishery management ,News, opinion and commentary - Abstract
MINISTRY OF OCEANS AND FISHERIES EAST SEA FISHERY MANAGEMENT GROUP, South Korea has invited tenders for Deep-Sea Fishing Vessel Electronic Monitoring (Em) Program Model Development Service. Tender Notice No: 20240410767-00 [...] more...
- Published
- 2024
145. OPEN JOINT STOCK COMPANY VLADIVOSTOK SEA FISHING PORT invites tenders for Purchase of a Trochoid Pump
- Subjects
Ports ,Saltwater fishing ,News, opinion and commentary - Abstract
OPEN JOINT STOCK COMPANY VLADIVOSTOK SEA FISHING PORT, Russian Federation has invited tenders for Purchase of a Trochoid Pump. Tender Notice No: 32413439039 Deadline: April 9, 2024 Copyright © 2011-2022 [...] more...
- Published
- 2024
146. Hommage à Théodore Monod, l'ichtyologue (1902-2000).
- Author
-
HUREAU, Jean-Claude
- Subjects
- *
HISTORY of science , *FISHERIES , *ETHNOHISTORY , *SALTWATER fishing , *MARINE fishes , *BOTANY - Abstract
As an eclectic scientist, Théodore Monod is well known for his works on deserts, crustaceans, fishes, botany, desert geology, archaeology, ethnology and the history of science. He was one of the first ecologists, protector of nature and life. He devoted himself to more than twenty scientific disciplines during his career. For many scientists he was the specialist of their own discipline, but in fact he was a specialist of many branches of natural sciences. His 100 publications in ichthyology constitute a remarkable body of work even if they represent only 5% of his writings. This written work is considerable: 2167 scientific articles, notes and books for the general public were published in about 80 years. It is therefore delicate to propose a selection that illustrate the eclecticism of their author. In this paper we concentrate on the works in ichthyology. As soon as he was appointed to the Museum in 1922, he was sent to Mauritania for a year to study fish and crustaceans and also their fishing. These two animal groups have always been his passion and his specialty in zoology. Anatomist, he knew how to observe, draw and interpret all the organisms he studied. The books he wrote alone or in collaboration have become references for all ichthyologists and carcinologists. Thanks to his "insatiable and devouring" curiosity of nature, throughout his missions at sea, his explorations of oceanic islands, he collected until the end of his life tens of thousands of samples. His entry, as an assistant, in a laboratory dedicated to overseas fisheries forced him to familiarize with both fish and tropical countries. The contribution of Theodore Monod to the study of fish and fishing was vast. His work concerns both the fundamental aspects and the applications of ichthyology and can be divided into six major themes: "Fishes and fisheries", "Systematics, phylogeny, biogeography", "Biology of fishes", "Anatomy and functional morphology", "Inventories and catalogs of species", "History of Ichthyology". Among his 100 scientific publications on fishes, we note some master works such as the "Contribution to the fauna of Cameroon" (1927), his work on "The fishing industry in Cameroon" (1928), his work on the systematics of Clupeidae (1961), the numerous anatomical studies on tropical species such as the balastids (1958 to 1960) and elopids. We also note his voluminous work on the urophore complex of the Teleosteans (1968), the work on the cephalic osteology of the Scaridae, started in Dakar 60 years before publication, and completed in collaboration in Paris (1994, 1997). Finally, it is essential here to mention the eminent role played by Théodore Monod in the launching of the series of regional Catalogues/Check-lists of fishes ("the Clof..."). The first of these catalogs, the Clofnam ("Checklist of the fishes of the north-eastern Atlantic and the Mediterranean, 1973"), in which he participated very actively as author and mainly co-editor, served as a model for the whole series. While remaining African at heart and in love with deserts, Théodore Monod remained faithful to the sea and to marine fishes, as much in the subjects of his research as in his scientific functions. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
147. A comparative study on the accumulation of toxic heavy metals in fish of the Oman Sea: effects of fish size, spatial distribution and trophic level.
- Author
-
Javanshir Khoei, Arash
- Subjects
SIZE of fishes ,HEAVY metals ,SALTWATER fishing ,MARINE fishes ,PELAGIC fishes ,COMPARATIVE studies - Abstract
This study was conducted to evaluate heavy metal (HMT) accumulation in some commercially pelagic (Scomberoides commersonnianus, Rastrelliger kanagurta, Saurida tumbil) and demersal fish (Parastromateus niger, Alepes melanoptera, Nemipterus japonicus, Alepes melanoptera) of Oman Sea. Fish samples were collected by trawl from inshore area of four stations along Chabahar bay. The heavy metal (Ni, Cr, Hg, Cd, Pb) concentrations in the muscle tissue of the fishes were assayed. In addition, the relationships between the level of heavy metal accumulation in fish tissue and fish size were studied. The demersal species accumulated more heavy metals compared to pelagic fishes (p < 0.01). Both in pelagic and demersal fishes, the rate of metal accumulations was different depending on fish species. In addition, the trophic level affected tissue muscular metal concentrations. Both in pelagic and demersal fishes, the carnivorous and euryphagous species accumulated more metals compared to phytoplankton and herbivorous fishes (p < 0.01). In most cases, negative relationships were observed between fish size (length and weight) and the metal accumulations (p < 0.01). However, some positive correlations were also observed in Hg, Pb and Cd concentrations with size in Psettodes erumei and Parastromateus niger (p < 0.01). In conclusion, the different patter of metals accumulations may be attributed to the differences in feeding behavior, metabolic activity and habitat. In this study, except Cd and Cr, the concentrations of all heavy metals were in the safe range and were below the hazardous limits recommended by the EC (2001) and USFDA. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
148. Extreme original data yield extreme decline effects.
- Author
-
Clements, Jeff C., Sundin, Josefin, Clark, Timothy D., and Jutfelt, Fredrik
- Subjects
- *
OCEAN acidification , *FISH declines , *INDUCTIVE effect , *SALTWATER fishing - Abstract
Clements et al. respond to Munday's claim that his "reanalysis shows there is not an extreme decline effect in fish ocean acidification studies". They contend that extreme data reported in early studies authored by Dixson and Munday indeed result in an "extreme" decline effect in this field, and conclude that the decline effect is primarily driven by papers by particular authors. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
149. KEPATUHAN ARMADA PURSE SEINE TERHADAP REGULASI PENANGKAPAN IKAN DI PPS BELAWAN, SUMATERA UTARA.
- Author
-
Putra, Thomas Romano, Noviyanti, Rinda, and Gigentika, Soraya
- Subjects
- *
HARBORS , *SALTWATER fishing , *TOURNAMENT fishing , *PRODUCTION quantity , *SECONDARY analysis - Abstract
Belawan Ocean Fishery Port (PPS) is the largest fishing port located in the Malacca Strait, with purse seine fishing gear as the fleet that dominates fishing activities. Fishing activities in the Malacca Strait use purse seine fishing gear which creates competition in getting fish, so that it is often the reason for fishermen to carry out fishing activities that are not in accordance with the rules. One of the impacts of this violation is the decrease in production volume in the last 3 years at the Belawan Ocean Fishing Port. Therefore, research is needed to identify the types of violations committed by purse seine fishermen in Belawan PPS. The research conducted using a qualitative descriptive method. The data collected consisted of primary and secondary data from related agencies, as well as primary data obtained from interviews with respondents using a questionnaire. The analysis carried out is to assess the compliance of the purse seine fleet before, during and after fishing. The results showed that the base port compliance value was 86.77 %; fishing area 83.75%; fishing gear 73.49%; and operational feasibility of the ship 80.38 %. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
150. The "Journey" of Microplastics across the Marine Food Web in China's Largest Fishing Ground.
- Author
-
Jiang, Rijin, Deng, Zhaochao, Li, Jingjing, Xiao, Yi, Xu, Yongjiu, Wang, Jing, Li, Tiejun, and Zhang, Chunfang
- Subjects
MICROPLASTICS ,MARINE food chain ,FOOD chains ,GROUNDFISHES ,CRUSTACEA ,SALTWATER fishing ,CALANOIDA - Abstract
Microplastics in marine environments are becoming a hot topic since they can be transferred through the marine food web and may finally be consumed by humans. Here, we investigate the distribution characteristics of microplastics in marine organisms at different trophic levels through their digestive tracts (entire organisms for zooplankton and zoobenthos). A total of 124 fish and 22 crustaceans from 10 fish and 3 crustacean species, as well as a few zooplankton and zoobenthos, were captured from the Zhoushan fishing ground, i.e., China's largest ocean fishing ground. The abundance of microplastics ranged from 0.74 ± 1.29 to 4.71 ± 2.19 items per sample in fish species and from 0.83 ± 1.07 to 1.00 ± 0.93 items per sample in crustacean species. Among the detected microplastics, fiber was the most dominant type (i.e., 67%), transparent microplastics were the most frequently detected (i.e., 49%), and the majority of the microplastics were identified as natural particles (cellulose). The abundance of microplastics was positively correlated with the trophic level (correlation coefficient = 0.717; p < 0.05). Our results show that microplastics are widespread in the marine organisms of the Zhoushan fishing ground, and they might accumulate in marine organisms at higher trophic levels of the marine food chain. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.