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 seas...
| Título de la revista: | Acta Biológica Colombiana |
|---|---|
| Autor principal: | Luis Orlando Duarte |
| Otros autores: | Félix Cuello; Roy Díaz Vesga; Luis Majarrés; |
| Palabras clave: | |
| Idioma: | Español |
| Enlace del documento: | http://www.revistas.unal.edu.co/index.php/actabiol/article/view/37604 |
| Tipo de recurso: | Documento de revista |
| Fuente: | Acta Biológica Colombiana; Vol 18, No 2 (Año 2013). |
| Entidad editora: | Universidad Nacional de Colombia |
| Derechos de uso: | Sin permisos preestablecidos |
| Materias: | Ciencias --> Bioquímica y Biología Molecular Ciencias --> Conservación de la Biodiversidad Ciencias --> Biología Ciencias --> Biología Celular Ciencias --> Ecología Ciencias --> Ciencias Ambientales Ciencias --> Biología Evolutiva Ciencias --> Genética Ciencias --> Limnología Ciencias --> Biología Marina y de Agua Dulce Ciencias --> Micología Ciencias --> Ornitología Ciencias --> Paleontología Ciencias --> Parasitología Ciencias --> Botánica Ciencias --> Zoología Ciencias Aplicadas --> Agricultura |
| Resumen: | 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 |
|---|
