Gillnet selectivity for the spotted rose snapper (Lutjanus guttatus) and the amarillo snapper (Lutjanus argentiventris) in Navidad Bay, Jalisco, Mexico

Gillnet selectivity for the spotted rose snapper (Lutjanus guttatus) and the amarillo snapper (Lutjanus argentiventris) in Navidad Bay, Jalisco, Mexico

Gillnet selectivity for Lutjanus guttatus and L. argentiventris in Navidad Bay, Jalisco (Mexico), was estimated using monthly samples. Gillnets of 7.62- and 8.89-cm mesh size were used for the experimental design; 475 organisms of L. guttatus and 134 organisms of L. argentiventris were caught. The r...

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Autores principales: Rojo-Vázquez, JA, Arreguín-Sánchez, F, Godínez-Domínguez, E, Ramírez-Rodríguez, M
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 1999
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/641
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spelling oai:cienciasmarinas.com.mx:article-6412019-05-29T19:25:30Z Gillnet selectivity for the spotted rose snapper (Lutjanus guttatus) and the amarillo snapper (Lutjanus argentiventris) in Navidad Bay, Jalisco, Mexico Selectividad de redes de enmalle para el pargo lunarejo (Lutjanus guttatus) y el pargo alazán (Lutjanus argentiventris) en Bahía de Navidad, Jalisco, México Rojo-Vázquez, JA Arreguín-Sánchez, F Godínez-Domínguez, E Ramírez-Rodríguez, M gillnets selectivity Lutjanidae Jalisco Mexico redes de enmalle selectividad Lutjanidae Jalisco México Gillnet selectivity for Lutjanus guttatus and L. argentiventris in Navidad Bay, Jalisco (Mexico), was estimated using monthly samples. Gillnets of 7.62- and 8.89-cm mesh size were used for the experimental design; 475 organisms of L. guttatus and 134 organisms of L. argentiventris were caught. The results show that the organisms caught with the 8.89-cm mesh were on average 4 cm larger and 100 g heavier than those caught with the 7.62-cm mesh. For L. guttatus, the optimum length (100% retention probability) was 29.1 cm for the 7.62-cm mesh and 33.9 cm for the 8.89-cm mesh; for L. argentiventris, the optimum length for the 7.62-cm mesh was 28.9 cm and for the 8.89-cm mesh, 33.7 cm. In both cases the catch mode corresponds to the calculated optimum length. The gillnet of 7.62-cm mesh caught the largest abundance in terms of number of individuals and biomass; however, the 8.89-cm mesh assures the catch of organisms that have reached first maturity length. Con el fin de determinar la selectividad de redes de enmalle para los pargos Lutjanus guttatus y L. argentiventris en la zona de Bahía de Navidad, Jalisco (México), se analizó la captura obtenida con redes de 7.62 y 8.89 cm de luz de malla. Se capturaron 475 organismos de L. guttatus y 134 organismos de L. argentiventris. Los resultados muestran que la red de 8.89 cm de tamaño de malla captura organismos que en promedio son 4 cm más grandes y 110 g más pesados que los capturados por la red de 7.62 cm. Para L. guttatus, se obtuvo una longitud óptima de 29.1 cm de longitud total para la red de 7.62 cm y de 33.9 cm para la red de 8.89 cm. Para L. argentiventris, la longitud óptima calculada fue de 28.9 y 33.7 cm para las redes de 8.89 y 7.62 cm, respectivamente. Si bien la red de 7.62 cm obtuvo una mayor captura, tanto en número como en biomasa, la red de 8.89 cm asegura que los organismos ya se hayan reproducido al menos una vez al momento de ser capturados. Iniversidad Autónoma de Baja California 1999-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed research note Nota de investigación arbitrada application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/641 10.7773/cm.v25i1.641 Ciencias Marinas; Vol. 25 No. 1 (1999); 153-159 Ciencias Marinas; Vol. 25 Núm. 1 (1999); 153-159 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/641/574
institution Ciencias Marinas
collection OJS
language eng
format Online
author Rojo-Vázquez, JA
Arreguín-Sánchez, F
Godínez-Domínguez, E
Ramírez-Rodríguez, M
spellingShingle Rojo-Vázquez, JA
Arreguín-Sánchez, F
Godínez-Domínguez, E
Ramírez-Rodríguez, M
Gillnet selectivity for the spotted rose snapper (Lutjanus guttatus) and the amarillo snapper (Lutjanus argentiventris) in Navidad Bay, Jalisco, Mexico
author_facet Rojo-Vázquez, JA
Arreguín-Sánchez, F
Godínez-Domínguez, E
Ramírez-Rodríguez, M
author_sort Rojo-Vázquez, JA
title Gillnet selectivity for the spotted rose snapper (Lutjanus guttatus) and the amarillo snapper (Lutjanus argentiventris) in Navidad Bay, Jalisco, Mexico
title_short Gillnet selectivity for the spotted rose snapper (Lutjanus guttatus) and the amarillo snapper (Lutjanus argentiventris) in Navidad Bay, Jalisco, Mexico
title_full Gillnet selectivity for the spotted rose snapper (Lutjanus guttatus) and the amarillo snapper (Lutjanus argentiventris) in Navidad Bay, Jalisco, Mexico
title_fullStr Gillnet selectivity for the spotted rose snapper (Lutjanus guttatus) and the amarillo snapper (Lutjanus argentiventris) in Navidad Bay, Jalisco, Mexico
title_full_unstemmed Gillnet selectivity for the spotted rose snapper (Lutjanus guttatus) and the amarillo snapper (Lutjanus argentiventris) in Navidad Bay, Jalisco, Mexico
title_sort gillnet selectivity for the spotted rose snapper (lutjanus guttatus) and the amarillo snapper (lutjanus argentiventris) in navidad bay, jalisco, mexico
description Gillnet selectivity for Lutjanus guttatus and L. argentiventris in Navidad Bay, Jalisco (Mexico), was estimated using monthly samples. Gillnets of 7.62- and 8.89-cm mesh size were used for the experimental design; 475 organisms of L. guttatus and 134 organisms of L. argentiventris were caught. The results show that the organisms caught with the 8.89-cm mesh were on average 4 cm larger and 100 g heavier than those caught with the 7.62-cm mesh. For L. guttatus, the optimum length (100% retention probability) was 29.1 cm for the 7.62-cm mesh and 33.9 cm for the 8.89-cm mesh; for L. argentiventris, the optimum length for the 7.62-cm mesh was 28.9 cm and for the 8.89-cm mesh, 33.7 cm. In both cases the catch mode corresponds to the calculated optimum length. The gillnet of 7.62-cm mesh caught the largest abundance in terms of number of individuals and biomass; however, the 8.89-cm mesh assures the catch of organisms that have reached first maturity length.
publisher Iniversidad Autónoma de Baja California
publishDate 1999
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/641
_version_ 1715723993309249536

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