Seasonal patterns and diets of wild fish assemblages associated with Mediterranean coastal fish farms
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Título: | Seasonal patterns and diets of wild fish assemblages associated with Mediterranean coastal fish farms |
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Autor/es: | Fernandez-Jover, Damian | Sanchez-Jerez, Pablo | Bayle-Sempere, Just T. | Valle-Pérez, Carlos | Dempster, Tim |
Grupo/s de investigación o GITE: | Biología Marina |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada |
Palabras clave: | Aquaculture impact | Mediterranean | Spatial variability | Temporal variability | Wild fish |
Fecha de publicación: | 5-jun-2008 |
Editor: | Oxford University Press |
Cita bibliográfica: | ICES Journal of Marine Science. 2008, 65(7): 1153-1160. https://doi.org/10.1093/icesjms/fsn091 |
Resumen: | Fish are attracted to floating structures, including coastal cage fish farms, sometimes in dense aggregations. To understand better the influence of aquaculture on wild fish stocks, we carried out seasonal visual censuses around three southwestern Mediterranean farms over 2 years to assess the temporal patterns of the aggregated fish assemblage. In addition, we analysed the diet of the five most abundant species. Aggregations around all farms were large throughout the year, although species composition and abundance differed among farms and seasons. Fish farms are attractive habitats for certain species of wild fish in specific seasons. Adult fish of reproductive size dominated the assemblages, and stomach content analysis revealed that 66–89% of fish of the five most abundant taxa had consumed food pellets lost from the cages. We estimated that wild fish consume up to 10% of the pellets used at farms, indicating that food is a key attractant. Regional monitoring of farm-associated wild fish assemblages could aid management of the interaction of aquaculture and wild fish resources, because changes in feeding behaviour may have consequences for fish populations and local fisheries. |
Patrocinador/es: | The study forms part of the ACUFISH project (Unidad de Biología Marina, University of Alicante) and was funded by Spanish Ministry of Science grant MYCT-REN2003-00794. |
URI: | http://hdl.handle.net/10045/131464 |
ISSN: | 1054-3139 (Print) | 1095-9289 (Online) |
DOI: | 10.1093/icesjms/fsn091 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2008 International Council for the Exploration of the Sea |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1093/icesjms/fsn091 |
Aparece en las colecciones: | INV - BM - Artículos Científicos / Scientific Papers |
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Fernandez-Jover_2008_Seasonal-patterns.pdf | 223,79 kB | Adobe PDF | Abrir Vista previa | |
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