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23 results on '"Epigonus crassicaudus"'

1. Local and global environmental drivers of growth chronologies in a demersal fish in the south-eastern Pacific Ocean

Author

Guillermo Moyano, Guido Plaza, Francisco Cerna, and Ariel A. Muñoz

Subjects
Epigonus crassicaudus, Otoliths, Sclerochronology, Environmental variables, Mixed linear models, Humboldt Current, Ecology, QH540-549.5
Abstract

Upwelling and the El Niño “Southern Oscillation” (ENSO) are recurrent climatic phenomena in the southeastern Pacific Ocean that severely affect the reproduction and growth of pelagic fish populations. However, there are not long-term growth data from demersal fish populations to test these interconections in a long-term analysis. For this reason, a first extensive growth chronology was reconstructed from the annual growth of sagittal otoliths as a proxy for somatic growth for the cardinalfish (Epigonus crassicaudus). Adult fish ranging from 35 to 40 cm in fork length and from 39 to 63 years in age were collected off Chilean waters. The master chronologies were estimated for the period from 1974 to 2014, using the regional curve standardization approach (RCS) and linear mixed models (LMMs). Growth indexes derived from both approaches followed a similar trend and were positively correlated with the Humboldt Current Index (HCI) and negatively with ENSO, Pacific Decadal Oscillation and sea surface temperature. LMMs showed that a 75% of growth variability was explained by the age of increment formation and HCI was the environmental index that most significantly affected the annual growth of cardinalfish followed by the sea surface temperature in spring. A reduced growth phase from 1974 to 1996 contrasted with a higher growth period from 1997, matching the 1997/1998 climatic regime shift, demonstrating that the enhanced growth for cardinalfish was associated with upwelling of nutrient rich water to the surface, triggering an increase of the primary and secondary productivity during the prevalence of a cold regime period in the Humboldt Current System. The consistence between RCS and LMM methods was indicative that both approaches are promising to evaluate the influence of environmental drivers on the growth condition of a demersal fish population in a highly productive marine ecosystem.

Published
2021
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2. Reproductive traits and natural mortality of the cardinalfish Epigonus crassicaudus: crucial information for stock assessment and sustainable management measures.

Author

Moyano, Guillermo, Cerna, Francisco, Leal, Elson, Plaza, Guido, and Ojeda, Vilma

Subjects
*FISH mortality, *FISHERIES, *SEXUAL cycle, *MORTALITY, *EXPECTED returns, *FISHERY management, *HUMAN reproduction
Abstract

Reproductive traits and natural mortality rate of cardinalfish females (Epigonus crassicaudus) were studied from samples collected onboard commercial fishing vessels, from 2012 to 2015, on the Chilean coast. The reproductive cycles of females analyzed thought gonadosomatic index (GSI) showed a maximum reproductive activity in austral fall, between March and May. Length (L50%) and age (A50%) at maturity, estimated using a macroscopic scale of the developed ovary, was 22.3 cm fork length (FL) and 9.3 years, respectively. Natural mortality (M) was estimated by two age-related methods. Using maximum age (tmax) M was estimated in 0.063 yr-1 and through age-at-maturity (A50%) in 0.15 yr-1. A potential bias in the reproductive study is discussed when a macroscopic maturity scale is used. Nevertheless, its usefulness is validated when funding is scarce, and time is limited. Although M uncertainty was not evaluated, the estimated range appears to be into the expected values to long-lived species. The life history parameters estimated in the present study can be used to evaluate possible time variability in maturity and M rates. Also, these results could be used in stock assessment analysis and to apply effective management measures in the fishery. [ABSTRACT FROM AUTHOR]

Published
2020
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3. Validation of the first annulus and growth model fit for the cardinalfish (Epigonus crassicaudus).

Author

Moyano, Guillermo, Cerna, Francisco, Ojeda, Vilma, and Plaza, Guido

Abstract

Age and growth parameters were estimated for the deep-sea cardinalfish (Epigonus crassicaudus) from sagittal otoliths collected between 2012 and 2015 onboard commercial fishing vessels from the South-east Pacific off Chile between 33°04′S and 41°46′S. Von Bertalanffy growth parameters (VBGP) were estimated from assumed annual otolith growth zone counts. The verification of the first annulus of sagittal otoliths was determined by examining in detail daily micro-increments. These data helped inform the interpretation of the annual growth zones from transverse otolith sections. The von Bertalanffy growth model estimated to length-at-age data were asymptotic length (L ∞) of 34.1 cm fork length (FL), a growth coefficient (k) of 0.1 cm/year and a t -zero (t 0) of −0.85. The maximum ages observed were 67 and 65 years for female and male fish, respectively. [ABSTRACT FROM AUTHOR]

Published
2019
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4. Effect of fishing tactics on the standardization of cardinalfish (Epigonus crassicaudus) catch rates in the demersal multispecies fishery off central Chile

Author

R Wiff, JC Quiroz, R Tascheri, and F Contreras

Subjects
fishing tactics, Epigonus crassicaudus, multispecies fisheries, multivariate analysis, catch per unit effort, Biology (General), QH301-705.5
Abstract

We analyzed the allocation of effective fishing effort and the standardization of cardinalfish (Epigonus crassicaudus) catch rates in the multispecies demersal trawl fishery off central Chile. The period analyzed covered from 1997 to 2004 and included detailed information about fishing hauls. Each haul that contained cardinalfish was assigned into a particular fishing tactic (cluster) by using multivariate analysis of their catch composition. The catch rate standardization was carried out by generalized linear models (GLM). Three fishing tactics were discovered: the first directed effort at cardinalfish, the second at common hake (Merluccius gayi gayi), and the third at Patagonian grenadier (Macruronus magellanicus). Fishing tactic was used as an explanatory variable in the proposed GLM. The fishing tactic effect was one of the most important factors in explaining the variance in the GLM. These results are discussed in the context of how the assignation of a fishing tactic allows unbiased abundance indices to be obtained in this kind of multispecies demersal fishery.

Published
2008
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5. Informe final. Evaluación hidroacústica de merluza común, año 2012. Fip no. 2012-04

Author

Lillo Vega, S. D., Bahamonde Forde, R., Vásquez Pastene, S., Sepúlveda Oróstica, A., Rojas García, M., Soto Mendoza, S., Angulo Aros, J., Valenzuela Cuevas, V.R., Núñez Elías, S, Olivares Cayul, J., Saavedra Nievas, J., Molina Guerrero, E., Díaz Ramos, E., Braun Alegría, J. M., and Saavedra Godoy, A.

Subjects
Caelorinchus aconcagua, Salinity, Spawning, Cervimunida johni, Longlining, Net fishing, Trap fishing, Trawling, Hippoglossina macrops, Age determination, Size-at-age, Larvae, Macruronus magellanicus, Biomass, Merluccius gayi gayi, Demersal fish, Marine environment, Shellfish, Length-weight relationships, Epigonus Crassicaudus, Bathymetric data, Heterocarpus reedi, Biological data, Stock assessment, Acoustic models, Recruitment, Dosidicus gigas
Abstract

El objetivo general del proyecto fue evaluar el stock de la merluza común y estimar las características biológicas, pesqueras y oceanográficas relevantes del recurso. Unpublished

Published
2013

6. Final Report. Hydroacoustic assessment of hake, 2012

Author

Soto Mendoza, S., Lillo Vega, S. D., Bahamonde Forde, R., Vásquez Pastene, S., Sepúlveda Oróstica, A., Rojas García, M., Angulo Aros, J., Valenzuela Cuevas, V.R., Núñez Elías, S, Olivares Cayul, J., Saavedra Nievas, J., Molina Guerrero, E., Díaz Ramos, E., Braun Alegría, J. M., and Saavedra Godoy, A.

Subjects
Caelorinchus aconcagua, Salinity, Spawning, Cervimunida johni, Longlining, Net fishing, Trap fishing, Trawling, Hippoglossina macrops, Age determination, Zooplankton, Size-at-age, Larvae, Macruronus magellanicus, Biomass, Merluccius gayi gayi, Demersal fish, Marine environment, Shellfish, Length-weight relationships, Epigonus Crassicaudus, Bathymetric data, Heterocarpus reedi, Biological data, Ichthyoplankton, Sexual maturity, Acoustic models, Stock assessment, Recruitment, Dosidicus gigas
Abstract

El objetivo general del proyecto fue evaluar el stock de la merluza común y estimar las características biológicas, pesqueras y oceanográficas relevantes del recurso. The overall project objective was to assess the hake stock and assess the biological, fisheries and oceanographic relevant resource. Published

Published
2013

7. Informe final. Besugo

Author

Tascheri Oyaneder, R. and Flores Inostroza, A.

Subjects
Salinity, marine environment, Spawning, Length-weight relationships, Longlining, Bathymetric data, Trap fishing, Trawling, Age determination, Size-at-age, Biological data, Sexual maturity, Stock assessment, Biomass, Recruitment, Epigonus crassicaudus, Demersal fish
Abstract

El presente informe actualiza el estatus del recurso besugo y analiza sus posibilidades de explotación biológicamente sustentables en horizontes de corto y mediano plazo, a través de un modelo estadístico de captura a la edad. Unpublished

Published
2013

8. Informe final. Asesoría de carácter transversal. Observadores científicos, 2012. : Actividad 3

Author

Azócar Rangel, J., Escobar Toro, V., Gónzalez Pizarro, A., San Martín Quinteros, M., Saavedra Nievas, J., Vera Elizondo, C., Bello Santibañez, R., Ossa Medina, L., Castillo Pizarro, J., and Villouta Vergara, C.

Subjects
Libidoclaea granaria, marine environment, Trachurus murphyi, Cervimunida johni, Net fishing, Aquaculture, Trap fishing, Hippoglossina macrops, Seiners, Fishery resources, Pleuroncodes monodon, Biomass, Epigonus crassicaudus, Demersal fish, Genypterus maculatus, Trash fish, Shellfish, Aquatic animals, Engraulis ringens, Bathymetric data, Heterocarpus reedi, Biological data, Sexual maturity, Haliporoides diomedeae, Recruitment, Dosidicus gigas
Abstract

Unpublished

Published
2013

9. Informe final Convenio asesoría para la toma de decisiones en pesca y acuicultura 2011. Actividad 5 : Asesoría carácter transversal: observadores científicos, 2011 / julio 2012

Author

Bernal Larrondo, C., Azócar Rangel, J., Escobar Toro, V., Gónzalez Pizarro, A., San Martín Quinteros, M., Saavedra Nievas, J., and Vera Elizondo, C.

Subjects
Libidoclaea granaria, Trachurus murphyi, Cervimunida johni, Aquatic animals, Engraulis ringens, Pelagic fisheries, Bathymetric data, Net fishing, Aquaculture, Trap fishing, Hippoglossina macrops, Seiners, Benthic environment, Heterocarpus reedi, Biological data, Fishery resources, Pleuroncodes monodon, Stock assessment, Haliporoides diomedeae, Epigonus crassicaudus, Dosidicus gigas, Demersal fish, Genypterus maculatus, Marine environment, Shellfish
Abstract

Unpublished

Published
2012

10. Informe final. Evaluación hidroacústica de merluza común, año 2011. Fip no. 2011-03

Author

Lillo Vega, S. D., Bahamonde Forde, R., Vásquez Pastene, S., Sepúlveda Oróstica, A., Rojas García, M., Angulo Aros, J., Valenzuela Cuevas, V. R., Núñez Elías, S., Olivares Cayul, J., Saavedra Nievas, J., Molina Guerrero, E., Díaz Ramos, E., Braun Alegría, J. M., and Saavedra Godoy, A.

Subjects
Caelorinchus aconcagua, Salinity, marine environment, Length-weight relationships, Epigonus Crassicaudus, Net fishing, Bathymetric data, Trap fishing, Age determination, Zooplankton, Size-at-age, Larvae, Macruronus magellanicus, Sexual maturity, Stock assessment, Acoustic models, Biomass, Recruitment, Merluccius gayi gayi, Dosidicus gigas, Shellfish
Abstract

Unpublished

Published
2012

11. Informe final. Asesoría integral para la toma de decisiones en pesca y acuicultura 2011. Mesa cualitativa No.1. Mesa PSR: merluza común, 2011 SUBPESCA / julio 2011

Author

Bernal Larrondo, C., Palta Vega, E., Sateler Galleguillos, J., San Martín Quinteros, M., Gálvez Gálvez, P., Farías, J., Tascheri Oyaneder, R., Gertosio Ramírez, A., and Carroza, L.

Subjects
marine environment, Length-weight relationships, Bathymetric data, Trap fishing, Zearaja chilensis, Age determination, Beryx splendens, Size-at-age, Macruronus magellanicus, Stock assessment, Biomass, Epigonus crassicaudus, Merluccius gayi gayi, Demersal fish
Abstract

Unpublished

Published
2012

12. Final Report. Hydroacoustic assessment of hake, 2010. FIP No. 2010-10

Author

Lillo Vega, S. D., Bahamonde Forde, R., Vásquez Pastene, S., Sepúlveda O., A., Reyes Quiroga, M., Olivares Cayul, J., Saavedra Nievas, J., Molina Guerrero, E., Díaz Ramos, E., Núñez Elías, S, Braun Alegría, J. M., and Saavedra Godoy, A.

Subjects
Caelorinchus aconcagua, marine environment, Cervimunida johni, Epigonus Crassicaudus, Bathymetric data, Net fishing, Trap fishing, Hippoglossina macrops, Size-at-age, Heterocarpus reedi, Salinity data, Macruronus magellanicus, Stock assessment, Acoustic models, Biomass, Merluccius gayi gayi, Dosidicus gigas, Demersal fish, Shellfish
Abstract

El objetivo general del proyecto fue evaluar el stock de la merluza común y estimar las características biológicas, pesqueras y oceanográficas relevantes del recurso. Metodológicamente se realizó un crucero de prospección que correspondieron al área de la plataforma continental entre las latitudes 31°25’S y los 41°30’S y desde la costa hasta el veril de los 500 metros de profundidad. The overall project objective was to assess the hake stock and assess the biological, fisheries and oceanographic relevant resource. Methodologically, we conducted a survey cruise which corresponded to the area of the continental shelf between latitudes 31°25’S and 41°30’S and from the coast to the reef 500 meters deep. Unpublished

Published
2011

13. Final Report. Comprehensive advice for decision-making in fisheries and aquaculture, 2010. Activity 7: Scientific Observer Program, 2010 / SUBPESCA / May 2011

Author

González Díaz, H., Bernal Larrondo, C., Azócar Rangel, J., Escobar Toro, V., Gónzalez Pizarro, A., Guzmán Fernández, O., Saavedra Nievas, J., Young Ugalde, Z., and Vera Elizondo, C.

Subjects
marine environment, Trachurus murphyi, Cervimunida johni, Pelagic fisheries, Net fishing, Aquaculture, Trap fishing, Hippoglossina macrops, Seiners, Fishery resources, Pleuroncodes monodon, Biomass, Epigonus crassicaudus, Demersal fish, Genypterus maculatus, Trash fish, Shellfish, Aquatic animals, Engraulis ringens, Bathymetric data, Heterocarpus reedi, Biological data, Sexual maturity, Stock assessment, Haliporoides diomedeae, Recruitment, Dosidicus gigas
Abstract

En el presente etudio se entregan los resultados obtenidos del análisis de la fauna acompañante de las pesquerías industriales pelágicas de la zona norte y centro sur, con motivo de la información requerida por la Secretaría Interina del acuerdo Subregional denominado ."South Pacific Regional Fisheries Management Organisation". In the present study gives results of the analysis of bycatch of pelagic industrial fisheries in the northern and south-central, because of the information required by the Interim Secretariat of the agreement referred Subregional "South Pacific Regional Fisheries Management Organisation" Unpublished

Published
2011

14. Final Report. Program monitoring of the status of major national fisheries. Research situation demersal fishery south-central and deep water, 2007 Section I deepwater fishery

Author

Sateler Galleguillos, Jorge and González Arancibia, J.

Subjects
Brama australis, Salinity, Spawning, Length-weight relationships, Bathymetric data, Trap fishing, Callorhinchus callorhinchus, Age determination, Size-at-age, Landing statistics, Biological data, Sexual maturity, Stock assessment, Biomass, Recruitment, Merluccius gayi gayi, Epigonus crassicaudus, Demersal fish
Abstract

This report aims to develop a system of information collection and analysis of biological-fishing and extractive activities undertaken on demersal resources and deep water south-central and insular. With her purpose of providing timely information capture these resources and fishing operations of their fleet and quarrying, to analyze the variables and indicators relevant to the respective fisheries. El presente informe pretende desplegar un sistema de recopilación y análisis de información biológico-pesquera y de la actividad extractiva que se realice sobre los recursos demersales y los de aguas profundas en la zona centro sur e insular. Con el propósito de disponer de información oportuna de la captura de estos recursos y de las operaciones de pesca de su flota extractiva, analizar las variables e indicadores relevantes de las respectivas pesquerías. Published

Published
2008

15. Final Report . Program monitoring of the status of major national fisheries. Research situation demersal fishery south-central and deepwater demersal fishery 2007 Section II

Author

Gálvez Gálvez, Patricio, Sateler Galleguillos, Jorge, Olivares Cayul, Juan, Escobar Toro, Victoria, Ojeda Cerda, Vilma, Labrín Zuñiga, Carla, Young Ugalde, Zaida, and González Arancibia, J.P.

Subjects
Brama australis, Salinity, Spawning, Length-weight relationships, Bathymetric data, Trap fishing, Callorhinchus callorhinchus, Age determination, Size-at-age, Landing statistics, Biological data, Sexual maturity, Stock assessment, Biomass, Recruitment, Merluccius gayi gayi, Epigonus crassicaudus, Demersal fish
Abstract

El presente informe pretende desplegar un sistema de recopilación y análisis de información biológico-pesquera y de la actividad extractiva que se realice sobre los recursos demersales y los de aguas profundas en la zona centro sur e insular, con el propósito de disponer de información oportuna de la captura de estos recursos y de las operaciones de pesca de su flota extractiva, analizar las variables e indicadores relevantes de las respectivas pesquerías. This report aims to develop a system of information collection and analysis of biological-fishing and extractive activities undertaken on demersal resources and deep water south-central and insular. With her purpose of providing timely information capture these resources and fishing operations of their fleet and quarrying, to analyze the variables and indicators relevant to the respective fisheries. Published

Published
2007

16. Estado de explotación del recurso besugo (Epigonus crassicaudus) en Chile

Author

Wiff, Rodrigo, Quiroz, Juan Carlos, and Tascheri, Renzo

Subjects
besugo, modelos talla-estructurados, Epigonus crassicaudus, evaluación de stock, cardinalfish, stock assessment, exploitation status, estado de explotación, size-structured models
Abstract

Se analiza el estado de explotación del recurso besugo (Epigonus crassicaudus) capturado en Chile entre 33° y 41°S. Se realiza una evaluación indirecta del stock entre 1997 y 2003 mediante un modelo talla-estructurado con una matriz de transición que define los cambios en talla. El modelo fue calibrado mediante las estructuras de talla, desembarques oficiales y captura por unidad de esfuerzo (CPUE), esta última obtenida desde las bitácoras de pesca comercial y estandarizada por medio de modelos lineales generalizados (MLG). Luego de 7 años de una importante actividad pesquera, se concluye que el recurso besugo se encuentra al límite de sobrepesca por reclutamiento. En 2003 la biomasa desovante con respecto a la biomasa desovante virginal se encuentra en niveles cercanos al 40%. El análisis de los puntos biológicos de referencia (PBR) basados en la biomasa desovante por recluta (BPR), apoya este diagnóstico por cuanto el nivel de mortalidad por pesca en el año 2003 (Fact) se encuentra muy cercano a la mortalidad por pesca al nivel de BPR del 40% del valor virginal (F40%) The exploitation status of cardinalfish (Epigonus crassicaudus) yielded in Chile between 33° to 41°S was analyzed. An indirect assessment was performed between 1997 and 2003 through size-structured model with a transition matrix defining the changes among sizes. The model was calibrated using size structures, official landings, catch-per-unit of effort (CPUE) taken from commercial fishing logbooks and standardized by generalized linear models (GLM). After 7 years of an intense fishery activity, we concluded that the cardinalfish resource in Chile is on the recruitment overfishing limit. On 2003, the spawning biomass with respect to the virginal spawning biomass is close to 40%. The biological references points (BRP) based on spawning per recruit biomass (SPR) support this assesment because the fishing mortality level on 2003 (Fact) was very close to fishing mortality level of 40% of SRP at virginal value (F40%)

Published
2005

17. Length-composition and length-weight relationship in cardinalfish (Epigonus crassicaudus) of the central-southern area off Chile

Author

Gálvez, Mauricio and Rebolledo, Hernán

Subjects
frecuencia de longitud, size frequency, besugo, length-weight relationship, relación longitud-peso, Epigonus crassicaudus, cardinalfish
Abstract

Se analiza temporal y espacialmente las distribuciones de frecuencias de longitud y la relación longitud-peso, con registros obtenidos en las capturas de besugo efectuadas por la flota arrastrera industrial de la zona centro-sur de Chile. El estudio cubrió el área comprendida entre Punta Curaumilla (33º10'S) y sur de isla Mocha (38º38'S), de octubre de 1998 a septiembre de 1999. Los principales resultados indican que la distribución de frecuencias de longitud del recurso es principalmente de carácter unimodal, la longitud media, máxima y modal de hembras es mayor que la de machos y tiende a incrementarse hacia el sur del área analizada. Se determinó que el crecimiento en peso, tanto de machos como de hembras, es alométrico con parámetros (a; b) de 0,02847; 2,77571 (machos) y 0,02160; 2,86661 (hembras), en el período analizado The size-frequency and the length-weight relationship was analyzed temporal and spatially, from the catch data registered for cardinalfish, by the industrial trawlers of central-southern area off Chile. This study considered the area between Curaumilla point (33º10'S) and the south of Mocha Island (38º38'S), from October 1998 to September 1999. The main results shown that size-frequency distributions are unimodal; the average, maximum and modal lengths of the females are higher than males and tend to increase southward to the analyzed area. It was settle that the growth in weight for males and females is allometric with parameters (a, b) of 0.02847, 2.77571 (males) and 0.02160, 2.86661 (females), for the period analyzed

Published
2001

18. Estructura de longitud y relación longitud-peso en besugo (Epigonus crassicaudus), en la zona centro-sur de Chile

Author

Hernán Rebolledo and Mauricio Gálvez

Subjects
frecuencia de longitud, besugo, relación longitud-peso, Aquatic Science, Oceanography, Epigonus crassicaudus
Abstract

Se analiza temporal y espacialmente las distribuciones de frecuencias de longitud y la relación longitud-peso, con registros obtenidos en las capturas de besugo efectuadas por la flota arrastrera industrial de la zona centro-sur de Chile. El estudio cubrió el área comprendida entre Punta Curaumilla (33º10'S) y sur de isla Mocha (38º38'S), de octubre de 1998 a septiembre de 1999. Los principales resultados indican que la distribución de frecuencias de longitud del recurso es principalmente de carácter unimodal, la longitud media, máxima y modal de hembras es mayor que la de machos y tiende a incrementarse hacia el sur del área analizada. Se determinó que el crecimiento en peso, tanto de machos como de hembras, es alométrico con parámetros (a; b) de 0,02847; 2,77571 (machos) y 0,02160; 2,86661 (hembras), en el período analizado

Published
2001

19. Estructura de longitud y relación longitud-peso en besugo (Epigonus crassicaudus), en la zona centro-sur de Chile

Author

Gálvez,Mauricio, Rebolledo,Hernán, Gálvez,Mauricio, and Rebolledo,Hernán

Abstract

Se analiza temporal y espacialmente las distribuciones de frecuencias de longitud y la relación longitud-peso, con registros obtenidos en las capturas de besugo efectuadas por la flota arrastrera industrial de la zona centro-sur de Chile. El estudio cubrió el área comprendida entre Punta Curaumilla (33º10'S) y sur de isla Mocha (38º38'S), de octubre de 1998 a septiembre de 1999. Los principales resultados indican que la distribución de frecuencias de longitud del recurso es principalmente de carácter unimodal, la longitud media, máxima y modal de hembras es mayor que la de machos y tiende a incrementarse hacia el sur del área analizada. Se determinó que el crecimiento en peso, tanto de machos como de hembras, es alométrico con parámetros (a; b) de 0,02847; 2,77571 (machos) y 0,02160; 2,86661 (hembras), en el período analizado

Published
2001

20. Final Report. Research situation demersal fishery south-austral, 1998

Author

Young Ugalde, Z. I., Ojeda Cerda, V., Cerna Troncoso, J. F., Hidalgo Valdebenito, H. O., Bravo Pinto, R. L., Céspedes Michea, R. A., Adasme Martínez, L. M., Vera Elizondo, C. A., and Miranda Pérez, H. H.

Subjects
Salinity, Spawning, Length-weight relationships, Orange roughy, Hoplostethus atlanticus, Bathymetric data, Trap fishing, Age determination, Beryx splendens, Landing statistics, Biological data, Stock assessment, Recruitment, Biomass, Epigonus crassicaudus, Demersal fish
Abstract

El presente documento tiene como objetivo realizar el levantamiento y análisis primario de la información biológica y pesquera durante la temporada de pesca comercial del año 1997 de los principales recursos de la pesquería demersal sur-austral. This document is intended to perform the primary survey and analysis of biological and fisheries information for the commercial fishing season of 1997 of the major demersal fishery resources of the south-south. Unpublished

Published
1998

21. Final Report. Program monitoring of the status of major national fisheries. Research situation demersal fishery south-central 1997

Author

Payá Contreras, I. S., Tascheri Oyaneder, R.M., Olivares Cayul, J. S., Miranda Pérez, H. H., Vera Elizondo, C. A, Adasme Martínez, L.M., Bravo Muñoz, C. C., Ojeda Cerda, V., and Gili V., R.

Subjects
Salinity, Spawning, Length-weight relationships, Stock assessment, Hoplostethus atlanticus, Bathymetric data, Recruitment, Biomass, Trap fishing, Epigonus crassicaudus, Demersal fish, Age determination, Beryx splendens
Abstract

El presente documento tiene como objetivo recopilar y analizar de forma preliminar la información biológica-pesquera durante la temporada de pesca comercial del año 1997 de los principales recursos de las pesquerías demersales de la zona centro-sur. This document aims to collect and a preliminary analysis of biological and fishery information for the commercial fishing season of 1997 of the main demersal fisheries resources of the central-south. Unpublished

Published
1998

22. Final Report. Program monitoring of the status of major national fisheries. Research situation demersal fishery south-central 1996

Author

Payá Contreras, I. S., Tascheri Oyaneder, R. M., Sateler Galleguillos, J., Ojeda Cerda, V., Gili V., R., Vera Elizondo, C. A., Miranda Pérez, H. H., Adasme Martínez, L. M., Bravo Pinto, R. L., and Olivares Cayul, J. M.

Subjects
Salinity, Spawning, Length-weight relationships, Orange roughy, Hoplostethus atlanticus, Bathymetric data, Trap fishing, Age determination, Beryx splendens, Landing statistics, Biological data, Stock assessment, Recruitment, Biomass, Epigonus crassicaudus, Demersal fish
Abstract

El presente documento tiene como objetivo recopilar y analizar de forma preliminar la información biológica-pesquera durante la temporada de pesca comercial del año 1996 de los principales recursos de las pesquerías demersales de la zona centro-sur. This document aims to collect and a preliminary analysis of biological and fishery information for the commercial fishing season of 1996 of the main demersal fisheries resources of the central-south. Unpublished

Published
1997

23. Final Report. monitoring program of the status of the main national fisheries: Research demersal fishery situation south-austral

Author

Céspedes Michea, R.A., Adasme Martínez, L.M., Vera Elizondo, C. A., Miranda Pérez, H. H., Ojeda Cerda, V., Young Ugalde, Z.I., and Bravo Pinto, R.L.

Subjects
Salinity, Stock assessment, Hoplostethus atlanticus, Recruitment, Biomass, Bathymetric data, Trap fishing, Epigonus crassicaudus, Demersal fish, Beryx splendens, Landing statistics
Abstract

El presente documento tiene como objetivo realizar el levantamiento y análisis primario de la información biológica y pesquera durante la temporada de pesca comercial del año 1996 de los principales recursos de la pesquería demersal sur-austral. This paper aims to conduct the survey and preliminary analysis of biological and fisheries information for the commercial fishing season of 1996 of the main demersal fisheries resources south-south. Unpublished

Published
1997

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