Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico

We analyzed the catch and effort data for the brown shrimp (Farfantepenaeus californiensis) fishery over 22 years. We used a biomass dynamic model in a stochastic version to analyze the catch-per-unit effort of the trawl fishery in the Gulf of California, Mexico. Two hypotheses were proposed: the fi...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Morales-Bojórquez, E, López-Martínez, J, Hernández-Vázquez, S
Formato:	Online
Lenguaje:	eng
Publicado:	Iniversidad Autónoma de Baja California 2001
Acceso en línea:	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/374
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:cienciasmarinas.com.mx:article-374
record_format	ojs
spelling	oai:cienciasmarinas.com.mx:article-3742019-05-14T00:06:33Z Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico Modelo dinámico de captura y esfuerzo para el camarón café Farfantepenaeus californiensis (Holmes) del Golfo de California, México Morales-Bojórquez, E López-Martínez, J Hernández-Vázquez, S process error observation error hypothesis testing CPUE error de proceso error de observación prueba de hipótesis CPUE We analyzed the catch and effort data for the brown shrimp (Farfantepenaeus californiensis) fishery over 22 years. We used a biomass dynamic model in a stochastic version to analyze the catch-per-unit effort of the trawl fishery in the Gulf of California, Mexico. Two hypotheses were proposed: the first (observation error) assumes that the catch-per-unit effort (CPUE) is measured with error, while in the second (process error), the variability of the population is produced by factors not included in the model. The results show that the hypothesis of the process error was accepted. In this case, the hypothesis of the process error recognizes several sources of perturbation in the model. For example, changes in the size structure of the shrimp population, changes in the natural mortality, variations in the fecundity or recruitment, and changes in the environment. Evidence of the relation between the environment and the shrimp population is discussed, as is the possibility of proposing a biological hypothesis for the trends of the population and the CPUE. Se analizaron los datos de captura y esfuerzo de la pesquería del camarón café (Farfantepenaeus californiensis) durante 22 años. Se usó un modelo dinámico de biomasa en su versión estocástica para analizar la captura por unidad de esfuerzo de la pesquería de arrastre en el Golfo de California, México. Se propusieron dos hipótesis: en la primera (error de observación) se supone que la captura por unidad de esfuerzo (CPUE) es medida con error y en la segunda (error de proceso), la variabilidad de la población es producida por factores no incluidos en el modelo. Los resultados muestran que se aceptó la hipótesis del error de proceso. En este caso, la hipótesis del error de proceso reconoce varias fuentes de perturbación en el modelo. Por ejemplo, cambios en la estructura de tallas de la población de camarón, cambios en la mortalidad natural, variaciones en la fecundidad o el reclutamiento y cambios en el ambiente. Son discutidas algunas evidencias entre la relación del ambiente y la población de camarón, así como la posibilidad de proponer una hipótesis biológica para las tendencias de la población y la CPUE. Iniversidad Autónoma de Baja California 2001-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/374 10.7773/cm.v27i1.374 Ciencias Marinas; Vol. 27 No. 1 (2001); 105-124 Ciencias Marinas; Vol. 27 Núm. 1 (2001); 105-124 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/374/321
institution	Ciencias Marinas
collection	OJS
language	eng
format	Online
author	Morales-Bojórquez, E López-Martínez, J Hernández-Vázquez, S
spellingShingle	Morales-Bojórquez, E López-Martínez, J Hernández-Vázquez, S Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico
author_facet	Morales-Bojórquez, E López-Martínez, J Hernández-Vázquez, S
author_sort	Morales-Bojórquez, E
title	Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico
title_short	Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico
title_full	Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico
title_fullStr	Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico
title_full_unstemmed	Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico
title_sort	dynamic catch-effort model for brown shrimp farfantepenaeus californiensis (holmes) from the gulf of california, mexico
description	We analyzed the catch and effort data for the brown shrimp (Farfantepenaeus californiensis) fishery over 22 years. We used a biomass dynamic model in a stochastic version to analyze the catch-per-unit effort of the trawl fishery in the Gulf of California, Mexico. Two hypotheses were proposed: the first (observation error) assumes that the catch-per-unit effort (CPUE) is measured with error, while in the second (process error), the variability of the population is produced by factors not included in the model. The results show that the hypothesis of the process error was accepted. In this case, the hypothesis of the process error recognizes several sources of perturbation in the model. For example, changes in the size structure of the shrimp population, changes in the natural mortality, variations in the fecundity or recruitment, and changes in the environment. Evidence of the relation between the environment and the shrimp population is discussed, as is the possibility of proposing a biological hypothesis for the trends of the population and the CPUE.
publisher	Iniversidad Autónoma de Baja California
publishDate	2001
url	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/374
_version_	1715723961011011584

Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico

Ejemplares similares

Síguenos en: