Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico
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Redalyc · Ciencias Marinas
The sailfish Istiophorus platypterus is abundant in tropical coastal areas of the Pacific Ocean. It is targeted by both sport-fishing and commercial (artisanal) fleets in Mexico, Guatemala, Costa Rica, and Panama. The Gulf of Tehuantepec is one of the main areas of abundance of I. platypterus, where...
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| Publié dans: | Ciencias Marinas |
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| Format: | Artículo científico |
| Langue: | en |
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Universidad Autónoma de Baja California
2012
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| _version_ | 1878325299969523712 |
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| author | G. Cerdenares-Ladrón de Guevara |
| author_facet | G. Cerdenares-Ladrón de Guevara |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico G. Cerdenares-Ladrón de Guevara E. Morales-Bojórquez S. Ramos-Carrillo G. González-Medina Ciencias de la Tierra CPUE size structure Artisanal fishing Gulf of Tehuantepec Istiophorus platypterus The sailfish Istiophorus platypterus is abundant in tropical coastal areas of the Pacific Ocean. It is targeted by both sport-fishing and commercial (artisanal) fleets in Mexico, Guatemala, Costa Rica, and Panama. The Gulf of Tehuantepec is one of the main areas of abundance of I. platypterus, where it is caught incidentally by artisanal vessels. The objective of this study was to analyze the size structure and the variability in the catch-per-unit-effort (CPUE) of sailfish caught in the Gulf of Tehuantepec from 2000 to 2008. The size structure was analyzed using eye-fork length (EFL) and CPUE was estimated as the number of individuals per fishing trip. Individuals ranged in size from 55 to 240 cm EFL and varied in total weight from 1.6 to 69.7 kg. The size structure was unimodal, and the variability over time showed a negative tendency (F(0.05(1),8,4967) = 6.8E + 8; P < 0.05). The CPUE of I. platypterus showed seasonal changes: values were lower from January to April and higher during the summer, and then decreased again in early winter. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48024401007 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.38 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/2066 10.7773/cm.v38i3.2066 |
| description | The sailfish Istiophorus platypterus is abundant in tropical coastal areas of the Pacific Ocean. It is targeted by both sport-fishing and commercial (artisanal) fleets in Mexico, Guatemala, Costa Rica, and Panama. The Gulf of Tehuantepec is one of the main areas of abundance of I. platypterus, where it is caught incidentally by artisanal vessels. The objective of this study was to analyze the size structure and the variability in the catch-per-unit-effort (CPUE) of sailfish caught in the Gulf of Tehuantepec from 2000 to 2008. The size structure was analyzed using eye-fork length (EFL) and CPUE was estimated as the number of individuals per fishing trip. Individuals ranged in size from 55 to 240 cm EFL and varied in total weight from 1.6 to 69.7 kg. The size structure was unimodal, and the variability over time showed a negative tendency (F(0.05(1),8,4967) = 6.8E + 8; P < 0.05). The CPUE of I. platypterus showed seasonal changes: values were lower from January to April and higher during the summer, and then decreased again in early winter.
El pez vela Istiophorus platypterus es abundante en zonas costeras tropicales del océano Pacífico. Además de ser atractiva para la pesca deportiva, también sostiene pesquerías artesanales en México, Guatemala, Costa Rica y Panamá. El golfo de Tehuantepec se reconoce como una de las áreas de mayor abundancia de I. platypterus y en la cual se llevan a cabo capturas incidentales en la pesca comercial de pequeña escala. El objetivo del presente trabajo fue determinar la estructura de tallas y la tendencia de la captura por unidad de esfuerzo (CPUE) del pez vela capturado por la flota artesanal en el golfo de Tehuantepec durante 2000 hasta 2008. Se estimó la estructura de tallas con base en el registro de la longitud ojo-furca (LOF) y la CPUE con base en el número de organismos capturados por viaje de pesca. Los individuos presentaron un intervalo de tallas de 55 a 240 cm de LOF y un peso total de 1.6 a 69.7 kg. La estructura de tallas fue unimodal, con una variación anual en la talla promedio de 2000 a 2008, y mostró una tendencia a disminuir en la serie de tiempo (F(0.05(1),8,4967) = 6.8E + 8; P < 0.05). La CPUE de I. platypterus presentó cambios estacionales: los valores más bajos se observaron durante el periodo de enero a abril, luego incrementaron durante el verano y volvieron a decaer hacia diciembre. |
| format | Artículo científico |
| id | redalyc_48024401007 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2012 |
| publisher | Universidad Autónoma de Baja California |
| spelling | Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico Variabilidad de la abundancia relativa y talla promedio del pez vela Istiophorus platypterus capturado por la flota artesanal en el golfo de Tehuantepec, México Cerdenares-Ladrón de Guevara, G Morales-Bojórquez, E Ramos-Carrillo, S González-Medina, G The sailfish Istiophorus platypterus is abundant in tropical coastal areas of the Pacific Ocean. It is targeted by both sport-fishing and commercial (artisanal) fleets in Mexico, Guatemala, Costa Rica, and Panama. The Gulf of Tehuantepec is one of the main areas of abundance of I. platypterus, where it is caught incidentally by artisanal vessels. The objective of this study was to analyze the size structure and the variability in the catch-per-unit-effort (CPUE) of sailfish caught in the Gulf of Tehuantepec from 2000 to 2008. The size structure was analyzed using eye-fork length (EFL) and CPUE was estimated as the number of individuals per fishing trip. Individuals ranged in size from 55 to 240 cm EFL and varied in total weight from 1.6 to 69.7 kg. The size structure was unimodal, and the variability over time showed a negative tendency (F(0.05(1),8,4967) = 6.8E + 8; P < 0.05). The CPUE of I. platypterus showed seasonal changes: values were lower from January to April and higher during the summer, and then decreased again in early winter. El pez vela Istiophorus platypterus es abundante en zonas costeras tropicales del océano Pacífico. Además de ser atractiva para la pesca deportiva, también sostiene pesquerías artesanales en México, Guatemala, Costa Rica y Panamá. El golfo de Tehuantepec se reconoce como una de las áreas de mayor abundancia de I. platypterus y en la cual se llevan a cabo capturas incidentales en la pesca comercial de pequeña escala. El objetivo del presente trabajo fue determinar la estructura de tallas y la tendencia de la captura por unidad de esfuerzo (CPUE) del pez vela capturado por la flota artesanal en el golfo de Tehuantepec durante 2000 hasta 2008. Se estimó la estructura de tallas con base en el registro de la longitud ojo-furca (LOF) y la CPUE con base en el número de organismos capturados por viaje de pesca. Los individuos presentaron un intervalo de tallas de 55 a 240 cm de LOF y un peso total de 1.6 a 69.7 kg. La estructura de tallas fue unimodal, con una variación anual en la talla promedio de 2000 a 2008, y mostró una tendencia a disminuir en la serie de tiempo (F(0.05(1),8,4967) = 6.8E + 8; P < 0.05). La CPUE de I. platypterus presentó cambios estacionales: los valores más bajos se observaron durante el periodo de enero a abril, luego incrementaron durante el verano y volvieron a decaer hacia diciembre. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2012-06-18 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/2066 10.7773/cm.v38i3.2066 Ciencias Marinas; Vol. 38 No. 3 (2012); 551-562 Ciencias Marinas; Vol. 38 Núm. 3 (2012); 551-562 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2066/1410 ['Redalyc'] redalyc_48024401007 Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico ['Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico', 'G. Cerdenares-Ladrón de Guevara', 'Ciencias de la Tierra', 'CPUE', 'size structure', 'Artisanal fishing', 'Gulf of Tehuantepec', 'Istiophorus platypterus', 'Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico G. Cerdenares-Ladrón de Guevara E. Morales-Bojórquez S. Ramos-Carrillo G. González-Medina Ciencias de la Tierra CPUE size structure Artisanal fishing Gulf of Tehuantepec Istiophorus platypterus The sailfish Istiophorus platypterus is abundant in tropical coastal areas of the Pacific Ocean. It is targeted by both sport-fishing and commercial (artisanal) fleets in Mexico, Guatemala, Costa Rica, and Panama. The Gulf of Tehuantepec is one of the main areas of abundance of I. platypterus, where it is caught incidentally by artisanal vessels. The objective of this study was to analyze the size structure and the variability in the catch-per-unit-effort (CPUE) of sailfish caught in the Gulf of Tehuantepec from 2000 to 2008. The size structure was analyzed using eye-fork length (EFL) and CPUE was estimated as the number of individuals per fishing trip. Individuals ranged in size from 55 to 240 cm EFL and varied in total weight from 1.6 to 69.7 kg. The size structure was unimodal, and the variability over time showed a negative tendency (F(0.05(1),8,4967) = 6.8E + 8; P < 0.05). The CPUE of I. platypterus showed seasonal changes: values were lower from January to April and higher during the summer, and then decreased again in early winter. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48024401007 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.38'] ['G. Cerdenares-Ladrón de Guevara'] ['G. Cerdenares-Ladrón de Guevara'] ['Artículo científico'] ['2012'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'CPUE', 'size structure', 'Artisanal fishing', 'Gulf of Tehuantepec', 'Istiophorus platypterus'] ['https://www.redalyc.org/articulo.oa?id=48024401007'] ['Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico G. Cerdenares-Ladrón de Guevara E. Morales-Bojórquez S. Ramos-Carrillo G. González-Medina Ciencias de la Tierra CPUE size structure Artisanal fishing Gulf of Tehuantepec Istiophorus platypterus The sailfish Istiophorus platypterus is abundant in tropical coastal areas of the Pacific Ocean. It is targeted by both sport-fishing and commercial (artisanal) fleets in Mexico, Guatemala, Costa Rica, and Panama. The Gulf of Tehuantepec is one of the main areas of abundance of I. platypterus, where it is caught incidentally by artisanal vessels. The objective of this study was to analyze the size structure and the variability in the catch-per-unit-effort (CPUE) of sailfish caught in the Gulf of Tehuantepec from 2000 to 2008. The size structure was analyzed using eye-fork length (EFL) and CPUE was estimated as the number of individuals per fishing trip. Individuals ranged in size from 55 to 240 cm EFL and varied in total weight from 1.6 to 69.7 kg. The size structure was unimodal, and the variability over time showed a negative tendency (F(0.05(1),8,4967) = 6.8E + 8; P < 0.05). The CPUE of I. platypterus showed seasonal changes: values were lower from January to April and higher during the summer, and then decreased again in early winter. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48024401007 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.38'] |
| spellingShingle | Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico G. Cerdenares-Ladrón de Guevara Ciencias de la Tierra CPUE size structure Artisanal fishing Gulf of Tehuantepec Istiophorus platypterus Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico G. Cerdenares-Ladrón de Guevara E. Morales-Bojórquez S. Ramos-Carrillo G. González-Medina Ciencias de la Tierra CPUE size structure Artisanal fishing Gulf of Tehuantepec Istiophorus platypterus The sailfish Istiophorus platypterus is abundant in tropical coastal areas of the Pacific Ocean. It is targeted by both sport-fishing and commercial (artisanal) fleets in Mexico, Guatemala, Costa Rica, and Panama. The Gulf of Tehuantepec is one of the main areas of abundance of I. platypterus, where it is caught incidentally by artisanal vessels. The objective of this study was to analyze the size structure and the variability in the catch-per-unit-effort (CPUE) of sailfish caught in the Gulf of Tehuantepec from 2000 to 2008. The size structure was analyzed using eye-fork length (EFL) and CPUE was estimated as the number of individuals per fishing trip. Individuals ranged in size from 55 to 240 cm EFL and varied in total weight from 1.6 to 69.7 kg. The size structure was unimodal, and the variability over time showed a negative tendency (F(0.05(1),8,4967) = 6.8E + 8; P < 0.05). The CPUE of I. platypterus showed seasonal changes: values were lower from January to April and higher during the summer, and then decreased again in early winter. 2012 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48024401007 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.38 |
| title | Variation in relative abundance and mean size of the sailfish Istiophorus platypterus caught by the artisanal fleet in the Gulf of Tehuantepec, Mexico |
| title_alt | Variabilidad de la abundancia relativa y talla promedio del pez vela Istiophorus platypterus capturado por la flota artesanal en el golfo de Tehuantepec, México |
| topic | Ciencias de la Tierra CPUE size structure Artisanal fishing Gulf of Tehuantepec Istiophorus platypterus |
| url | https://www.redalyc.org/articulo.oa?id=48024401007 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2066 |