Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia

Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia

Bycatch assessments in trawl fisheries have been mainly referred to an annual scale, ignoring possible seasonal variations. In the Gulf of Salamanca, an artisanal shrimp trawl fleet operates recently and this study evaluates its bycatch for first time, considering the climatic and oceanographic seasonality that dominates the region (runoff and upwelling). 90 hauls in the calm or rainy season (November 2010) and 86 in the windy season (April 2011) were sampled on board of fishing boats. The bycatch to shrimp ratio was 2,69 (2,37 -3,21, 95 % CI) and 6,37 (5,10 - 8,24, 95 % CI) for the calm season and windy season respectively. We recorded a total of 101 taxa, with a large number of juveniles. The community structure of bycatch differed between seasons (ANOSIM, p < 0,001), being characterized both seasons by Stellifer spp., Symphurus caribbeanus y Callinectes sapidus, whereas, in addition, the calm season was characterized by Cathorops mapale, Anchovia clupeoides, Trichiurus lepturus, and the windy season by Larimus breviceps, Cnidaria (jellyfish), Cetengraulis edentulus (Simper). The results showed a seasonal change in the bycatch, raising the need to implement monitoring programs and management measures that address that temporal variability. Negative ecological effects of this fishery prompt the use of mitigation strategies, involving fishermen, to balance social needs and the ecosystem conservation.

Saved in:
Bibliographic Details
Main Authors: Duarte, Luis Orlando, Díaz Vesga, Roy, Cuello, Félix, Majarrés, Luis
Format: Digital revista
Language:spa
Published: Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Biología 2013
Online Access:https://revistas.unal.edu.co/index.php/actabiol/article/view/37604
Tags: Add Tag
No Tags, Be the first to tag this record!
id oai:www.revistas.unal.edu.co:article-37604
record_format ojs
institution UNAL
collection OJS
country Colombia
countrycode CO
component Revista
access En linea
databasecode rev-actabol
tag revista
region America del Sur
libraryname Sistema Nacional de Bibliotecas de la UNAL
language spa
format Digital
author Duarte, Luis Orlando
Díaz Vesga, Roy
Cuello, Félix
Majarrés, Luis
spellingShingle Duarte, Luis Orlando
Díaz Vesga, Roy
Cuello, Félix
Majarrés, Luis
Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia
author_facet Duarte, Luis Orlando
Díaz Vesga, Roy
Cuello, Félix
Majarrés, Luis
author_sort Duarte, Luis Orlando
title Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia
title_short Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia
title_full Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia
title_fullStr Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia
title_full_unstemmed Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia
title_sort seasonal shift of bycatch in the artisanal shrimp trawl fishery of the gulf of salamanca, caribbean sea of colombia
description Bycatch assessments in trawl fisheries have been mainly referred to an annual scale, ignoring possible seasonal variations. In the Gulf of Salamanca, an artisanal shrimp trawl fleet operates recently and this study evaluates its bycatch for first time, considering the climatic and oceanographic seasonality that dominates the region (runoff and upwelling). 90 hauls in the calm or rainy season (November 2010) and 86 in the windy season (April 2011) were sampled on board of fishing boats. The bycatch to shrimp ratio was 2,69 (2,37 -3,21, 95 % CI) and 6,37 (5,10 - 8,24, 95 % CI) for the calm season and windy season respectively. We recorded a total of 101 taxa, with a large number of juveniles. The community structure of bycatch differed between seasons (ANOSIM, p < 0,001), being characterized both seasons by Stellifer spp., Symphurus caribbeanus y Callinectes sapidus, whereas, in addition, the calm season was characterized by Cathorops mapale, Anchovia clupeoides, Trichiurus lepturus, and the windy season by Larimus breviceps, Cnidaria (jellyfish), Cetengraulis edentulus (Simper). The results showed a seasonal change in the bycatch, raising the need to implement monitoring programs and management measures that address that temporal variability. Negative ecological effects of this fishery prompt the use of mitigation strategies, involving fishermen, to balance social needs and the ecosystem conservation.
publisher Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Biología
publishDate 2013
url https://revistas.unal.edu.co/index.php/actabiol/article/view/37604
work_keys_str_mv AT duarteluisorlando seasonalshiftofbycatchintheartisanalshrimptrawlfisheryofthegulfofsalamancacaribbeanseaofcolombia
AT diazvesgaroy seasonalshiftofbycatchintheartisanalshrimptrawlfisheryofthegulfofsalamancacaribbeanseaofcolombia
AT cuellofelix seasonalshiftofbycatchintheartisanalshrimptrawlfisheryofthegulfofsalamancacaribbeanseaofcolombia
AT majarresluis seasonalshiftofbycatchintheartisanalshrimptrawlfisheryofthegulfofsalamancacaribbeanseaofcolombia
AT duarteluisorlando cambioestacionalenlafaunaacompanantedelapesqueriaartesanaldearrastredecamarondelgolfodesalamancamarcaribedecolombia
AT diazvesgaroy cambioestacionalenlafaunaacompanantedelapesqueriaartesanaldearrastredecamarondelgolfodesalamancamarcaribedecolombia
AT cuellofelix cambioestacionalenlafaunaacompanantedelapesqueriaartesanaldearrastredecamarondelgolfodesalamancamarcaribedecolombia
AT majarresluis cambioestacionalenlafaunaacompanantedelapesqueriaartesanaldearrastredecamarondelgolfodesalamancamarcaribedecolombia
_version_ 1755914011179745280
spelling oai:www.revistas.unal.edu.co:article-376042021-11-16T15:37:08Z Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia CAMBIO ESTACIONAL EN LA FAUNA ACOMPAÑANTE DE LA PESQUERÍA ARTESANAL DE ARRASTRE DE CAMARÓN DEL GOLFO DE SALAMANCA, MAR CARIBE DE COLOMBIA Duarte, Luis Orlando Díaz Vesga, Roy Cuello, Félix Majarrés, Luis ecosystem estuary fisheries management tropical upwelling ecosistema estuario manejo pesquero surgencia tropical Bycatch assessments in trawl fisheries have been mainly referred to an annual scale, ignoring possible seasonal variations. In the Gulf of Salamanca, an artisanal shrimp trawl fleet operates recently and this study evaluates its bycatch for first time, considering the climatic and oceanographic seasonality that dominates the region (runoff and upwelling). 90 hauls in the calm or rainy season (November 2010) and 86 in the windy season (April 2011) were sampled on board of fishing boats. The bycatch to shrimp ratio was 2,69 (2,37 -3,21, 95 % CI) and 6,37 (5,10 - 8,24, 95 % CI) for the calm season and windy season respectively. We recorded a total of 101 taxa, with a large number of juveniles. The community structure of bycatch differed between seasons (ANOSIM, p < 0,001), being characterized both seasons by Stellifer spp., Symphurus caribbeanus y Callinectes sapidus, whereas, in addition, the calm season was characterized by Cathorops mapale, Anchovia clupeoides, Trichiurus lepturus, and the windy season by Larimus breviceps, Cnidaria (jellyfish), Cetengraulis edentulus (Simper). The results showed a seasonal change in the bycatch, raising the need to implement monitoring programs and management measures that address that temporal variability. Negative ecological effects of this fishery prompt the use of mitigation strategies, involving fishermen, to balance social needs and the ecosystem conservation. La evaluación de la fauna acompañante en las pesquerías de arrastre se ha referido generalmente a una escala anual, ignorando eventuales variaciones estacionales. En el golfo de Salamanca, recientemente opera una flota artesanal de arrastre de camarón, cuya fauna acompañante es evaluada por primera vez en el presente estudio, considerando la estacionalidad climática y oceanográfica que domina la región (descargas continentales y surgencia). Para ello, 90 lances en la época de calmas o lluviosa (noviembre 2010) y 86 en la época de vientos (abril 2011) fueron muestreados a bordo de embarcaciones pesqueras. La proporción fauna acompañante - camarón resultó ser 2,69 (2,37 - 3,21; IC 95 %) y 6,37 (5,10 - 8,24; IC 95 %) en la época de calmas y vientos, respectivamente. Un total de 101 taxa se registraron, con un elevado número de juveniles. La estructura comunitaria de la fauna acompañante difirió entre las épocas climáticas (Anosim, P < 0,001), siendo caracterizada en las dos épocas por Stellifer spp., Symphurus caribbeanus y Callinectes sapidus, en tanto que, adicionalmente, la época de calmas fue caracterizada por Cathorops mapale, Anchovia clupeoides, Trichiurus lepturus y la época de vientos por Larimus breviceps, Cnidaria (medusas), Cetengraulis edentulus (Simper). Los resultados evidenciaron un cambio estacional en la fauna acompañante, indicando la necesidad de implementar programas de monitoreo y medidas de manejo que atiendan a esa variabilidad temporal. Los efectos ecológicos negativos de esta pesquería urgen la utilización de estrategias de mitigación, concertadas con los pescadores, para balancear las necesidades sociales y la conservación del ecosistema. Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Biología 2013-05-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unal.edu.co/index.php/actabiol/article/view/37604 Acta Biológica Colombiana; Vol. 18 No. 2 (2013); 319-328 Acta Biológica Colombiana; Vol. 18 Núm. 2 (2013); 319-328 1900-1649 0120-548X spa https://revistas.unal.edu.co/index.php/actabiol/article/view/37604/40734 https://revistas.unal.edu.co/index.php/actabiol/article/view/37604/41741 Derechos de autor 2013 Acta Biológica Colombiana https://creativecommons.org/licenses/by/4.0

Similar Items