First data on the age and growth of Brazilian flathead Percophis brasiliensis (Pisces: Perciformes) in San Matías Gulf, northern Patagonia (Argentina)
Brazilian flathead Percophis brasiliensis is a commercially important perciform fish caught as bycatch by trawlers throughout its latitudinal distribution range (from 23° S in Brazil to 47° S in Argentina). It is associated with the catches of Argentine hake Merluccius hubbsi and Patagonian red shr...
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doaj-596c16a32653442887c31cb95f1e840b2021-07-08T13:06:56ZengInstituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)Marine and Fishery Sciences2683-79512020-12-0132210.47193/mafis.322201912190218First data on the age and growth of Brazilian flathead Percophis brasiliensis (Pisces: Perciformes) in San Matías Gulf, northern Patagonia (Argentina)María E. López0Matías Ocampo Reinaldo1Karina A. Rodrígues2M. Rita Rico3Margarita E. Sáez4Raúl A. González5Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Instituto de Desarrollo Costero “Dr. H. C. Héctor E. Zaixso” - Centro de Investigación y Transferencia “Golfo San Jorge”, Universidad Nacional de la Patagonia San Juan BoscoConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos “Almirante Storni” (CIMAS) / Escuela Superior de Ciencias Marinas (ESCiMar), Universidad Nacional del ComahueInstituto Nacional de Investigación y Desarrollo Pesquero (INIDEP) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos “Almirante Storni” (CIMAS) / Escuela Superior de Ciencias Marinas (ESCiMar), Universidad Nacional del Comahue Brazilian flathead Percophis brasiliensis is a commercially important perciform fish caught as bycatch by trawlers throughout its latitudinal distribution range (from 23° S in Brazil to 47° S in Argentina). It is associated with the catches of Argentine hake Merluccius hubbsi and Patagonian red shrimp Pleocticus muelleri in San Matías Gulf (SMG). The main objective of this study was to describe the first data on the growth of this species in SMG and to compare the results with available information for other areas of the Argentine Continental Shelf (ACS). The study was carried out using 294 specimens (196 females, 97 males and one of indeterminate sex) collected over four non-consecutive years from commercial/recreational fishing and during research cruises. The age of individuals was determined by reading and counting opaque-hyaline rings on the sagittae otoliths. The maximum ages observed were 14 years for females and 12 years for males. Growth parameters were estimated using the von Bertalanffy mode. Significant differences in L∞ parameter between sexes were found (L∞ males = 54.58 cm; L∞ females = 78.31 cm, p < 0.05). Growth parameters were different from those determined in previous studies for the ACS. https://ojs.inidep.edu.ar/index.php/mafis/article/view/39Age determinationGrowth curvePercophis brasiliensisGulf regionPoor-data speciesStock discrimination |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
María E. López Matías Ocampo Reinaldo Karina A. Rodrígues M. Rita Rico Margarita E. Sáez Raúl A. González |
spellingShingle |
María E. López Matías Ocampo Reinaldo Karina A. Rodrígues M. Rita Rico Margarita E. Sáez Raúl A. González First data on the age and growth of Brazilian flathead Percophis brasiliensis (Pisces: Perciformes) in San Matías Gulf, northern Patagonia (Argentina) Marine and Fishery Sciences Age determination Growth curve Percophis brasiliensis Gulf region Poor-data species Stock discrimination |
author_facet |
María E. López Matías Ocampo Reinaldo Karina A. Rodrígues M. Rita Rico Margarita E. Sáez Raúl A. González |
author_sort |
María E. López |
title |
First data on the age and growth of Brazilian flathead Percophis brasiliensis (Pisces: Perciformes) in San Matías Gulf, northern Patagonia (Argentina) |
title_short |
First data on the age and growth of Brazilian flathead Percophis brasiliensis (Pisces: Perciformes) in San Matías Gulf, northern Patagonia (Argentina) |
title_full |
First data on the age and growth of Brazilian flathead Percophis brasiliensis (Pisces: Perciformes) in San Matías Gulf, northern Patagonia (Argentina) |
title_fullStr |
First data on the age and growth of Brazilian flathead Percophis brasiliensis (Pisces: Perciformes) in San Matías Gulf, northern Patagonia (Argentina) |
title_full_unstemmed |
First data on the age and growth of Brazilian flathead Percophis brasiliensis (Pisces: Perciformes) in San Matías Gulf, northern Patagonia (Argentina) |
title_sort |
first data on the age and growth of brazilian flathead percophis brasiliensis (pisces: perciformes) in san matías gulf, northern patagonia (argentina) |
publisher |
Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP) |
series |
Marine and Fishery Sciences |
issn |
2683-7951 |
publishDate |
2020-12-01 |
description |
Brazilian flathead Percophis brasiliensis is a commercially important perciform fish caught as bycatch by trawlers throughout its latitudinal distribution range (from 23° S in Brazil to 47° S in Argentina). It is associated with the catches of Argentine hake Merluccius hubbsi and Patagonian red shrimp Pleocticus muelleri in San Matías Gulf (SMG). The main objective of this study was to describe the first data on the growth of this species in SMG and to compare the results with available information for other areas of the Argentine Continental Shelf (ACS). The study was carried out using 294 specimens (196 females, 97 males and one of indeterminate sex) collected over four non-consecutive years from commercial/recreational fishing and during research cruises. The age of individuals was determined by reading and counting opaque-hyaline rings on the sagittae otoliths. The maximum ages observed were 14 years for females and 12 years for males. Growth parameters were estimated using the von Bertalanffy mode. Significant differences in L∞ parameter between sexes were found (L∞ males = 54.58 cm; L∞ females = 78.31 cm, p < 0.05). Growth parameters were different from those determined in previous studies for the ACS.
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topic |
Age determination Growth curve Percophis brasiliensis Gulf region Poor-data species Stock discrimination |
url |
https://ojs.inidep.edu.ar/index.php/mafis/article/view/39 |
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