Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico
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Redalyc · Ciencias Marinas
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...
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| Pubblicato in: | Ciencias Marinas |
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Autónoma de Baja California
2001
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| _version_ | 1878325298649366528 |
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| author | Sergio Hernández Vázquez |
| author_facet | Sergio Hernández Vázquez |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico Sergio Hernández Vázquez Juana López Martínez Enrique Morales Bojórquez Ciencias de la Tierra CPUE process error observation error hypothesis testing We analyzed the catch and effort data for the brown shrimp (Farfantepenaeus californiensis) fisheryover 22 years. We used a biomass dynamic model in a stochastic version to analyze the catch-per-uniteffort 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 thesecond (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 theprocess error recognizes several sources of perturbation in the model. For example, changes in the sizestructure of the shrimp population, changes in the natural mortality, variations in the fecundity orrecruitment, and changes in the environment. Evidence of the relation between the environment and theshrimp population is discussed, as is the possibility of proposing a biological hypothesis for the trends ofthe population and the CPUE. 2001 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48027107 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.27 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/374 10.7773/cm.v27i1.374 |
| 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.
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. |
| format | Artículo científico |
| id | redalyc_48027107 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2001 |
| publisher | Universidad Autónoma de Baja California |
| spelling | 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. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2001-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://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://cienciasmarinas.com.mx/index.php/cmarinas/article/view/374/321 ['Redalyc'] redalyc_48027107 Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico ['Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico', 'Sergio Hernández Vázquez', 'Ciencias de la Tierra', 'CPUE', 'process error', 'observation error', 'hypothesis testing', 'Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico Sergio Hernández Vázquez Juana López Martínez Enrique Morales Bojórquez Ciencias de la Tierra CPUE process error observation error hypothesis testing We analyzed the catch and effort data for the brown shrimp (Farfantepenaeus californiensis) fisheryover 22 years. We used a biomass dynamic model in a stochastic version to analyze the catch-per-uniteffort 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 thesecond (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 theprocess error recognizes several sources of perturbation in the model. For example, changes in the sizestructure of the shrimp population, changes in the natural mortality, variations in the fecundity orrecruitment, and changes in the environment. Evidence of the relation between the environment and theshrimp population is discussed, as is the possibility of proposing a biological hypothesis for the trends ofthe population and the CPUE. 2001 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48027107 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.27'] ['Sergio Hernández Vázquez'] ['Sergio Hernández Vázquez'] ['Artículo científico'] ['2001'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'CPUE', 'process error', 'observation error', 'hypothesis testing'] ['https://www.redalyc.org/articulo.oa?id=48027107'] ['Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico Sergio Hernández Vázquez Juana López Martínez Enrique Morales Bojórquez Ciencias de la Tierra CPUE process error observation error hypothesis testing We analyzed the catch and effort data for the brown shrimp (Farfantepenaeus californiensis) fisheryover 22 years. We used a biomass dynamic model in a stochastic version to analyze the catch-per-uniteffort 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 thesecond (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 theprocess error recognizes several sources of perturbation in the model. For example, changes in the sizestructure of the shrimp population, changes in the natural mortality, variations in the fecundity orrecruitment, and changes in the environment. Evidence of the relation between the environment and theshrimp population is discussed, as is the possibility of proposing a biological hypothesis for the trends ofthe population and the CPUE. 2001 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48027107 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.27'] |
| spellingShingle | Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico Sergio Hernández Vázquez Ciencias de la Tierra CPUE process error observation error hypothesis testing Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico Sergio Hernández Vázquez Juana López Martínez Enrique Morales Bojórquez Ciencias de la Tierra CPUE process error observation error hypothesis testing We analyzed the catch and effort data for the brown shrimp (Farfantepenaeus californiensis) fisheryover 22 years. We used a biomass dynamic model in a stochastic version to analyze the catch-per-uniteffort 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 thesecond (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 theprocess error recognizes several sources of perturbation in the model. For example, changes in the sizestructure of the shrimp population, changes in the natural mortality, variations in the fecundity orrecruitment, and changes in the environment. Evidence of the relation between the environment and theshrimp population is discussed, as is the possibility of proposing a biological hypothesis for the trends ofthe population and the CPUE. 2001 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48027107 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.27 |
| title | Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico |
| title_alt | Modelo dinámico de captura y esfuerzo para el camarón café Farfantepenaeus californiensis (Holmes) del Golfo de California, México |
| topic | Ciencias de la Tierra CPUE process error observation error hypothesis testing |
| topic_facet | process error observation error hypothesis testing CPUE error de proceso error de observación prueba de hipótesis |
| url | https://www.redalyc.org/articulo.oa?id=48027107 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/374 |