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 seas...

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Main Authors: Luis Orlando Duarte, Félix Cuello, Roy Díaz Vesga, Luis Majarrés
Format: Article
Language:English
Published: Universidad Nacional de Colombia 2013-05-01
Series:Acta Biológica Colombiana
Subjects:
Online Access:https://revistas.unal.edu.co/index.php/actabiol/article/view/37604
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author Luis Orlando Duarte
Félix Cuello
Roy Díaz Vesga
Luis Majarrés
author_facet Luis Orlando Duarte
Félix Cuello
Roy Díaz Vesga
Luis Majarrés
author_sort Luis Orlando Duarte
collection DOAJ
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
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spelling doaj.art-b500ecca08964160ac6be55d29c75fb92022-12-21T18:39:33ZengUniversidad Nacional de ColombiaActa Biológica Colombiana0120-548X1900-16492013-05-0118233194Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of ColombiaLuis Orlando DuarteFélix CuelloRoy Díaz VesgaLuis MajarrésBycatch 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, phttps://revistas.unal.edu.co/index.php/actabiol/article/view/37604ecosistemaestuariomanejo pesquerosurgenciatropicalecosystem
spellingShingle Luis Orlando Duarte
Félix Cuello
Roy Díaz Vesga
Luis Majarrés
Seasonal Shift of Bycatch in the Artisanal Shrimp Trawl Fishery of the Gulf of Salamanca, Caribbean Sea of Colombia
Acta Biológica Colombiana
ecosistema
estuario
manejo pesquero
surgencia
tropical
ecosystem
title 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_short 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
topic ecosistema
estuario
manejo pesquero
surgencia
tropical
ecosystem
url https://revistas.unal.edu.co/index.php/actabiol/article/view/37604
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