Título

POPULATION DYNAMICS OF THE BIGEYE CROAKER MICROPOGONIAS MEGALOPS IN THE NORTHERN GULF OF CALIFORNIA

Autor

Edgar Arnoldo Arzola Sotelo

CARLOS HIRAM RABAGO QUIROZ

Jesús Guadalupe Padilla Serrato

JUANA LOPEZ MARTINEZ

ENRIQUE MORALES BOJORQUEZ

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Referencia de publicación

ISSN/ISSN: 0575-3317

URL/URL: https://calcofi.org/publications/calcofireports/v59/Vol59-Arzola-etal_86-101.pdf

Materias

MICROPOGONIAS MEGALOPS, GULF OF CALIFORNIA - (AUTOR) CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA - (CTI) CIENCIAS AGRARIAS - (CTI) PECES Y FAUNA SILVESTRE - (CTI) DINÁMICA DE LAS POBLACIONES - (CTI) DINÁMICA DE LAS POBLACIONES - (CTI)

Resumen o descripción

"Knowledge of biomass and demographic aspects is important in fish stock assessments. These aspects were analyzed on Micropogonias megalops in the Gulf of California, Mexico, using biological data from catches in 2010–12. Individual growth was estimated following a multi-model approach. Logistic models were used for first maturity and fishing selectivity, and natural mortality by means of empirical equations and biomass by the Pennington estimation. The results showed that the von Bertalanffy model best described growth for combined data (wi = 72.86 %), females (wi = 67.82 %) and males (wi = 69.42 %), but they showed sexual dimorphism on the species. First maturity was at 357.8 mm, fishing selectivity 323.35 and 366.35 mm for industrial and artisanal fleet, respectively, and average natural mortality of 0.51. Mean biomass was 14 412.9 tons contrasting the officially reported catch that represented only 8.7% of estimated biomass, showing evidence that M. megalops is still an underexploited resource."

Editor

The California Cooperative Oceanic Fisheries Investigations

Fecha de publicación

2018

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1688

Formato

application/pdf

Fuente

CALCOFI Report

Idioma

Inglés

Repositorio Orígen

Repositorio Institucional CIBNOR

Descargas

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