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Does marine fish farming affect local small-scale fishery catches? A case study in the NW Mediterranean Sea

AutorBacher, K. ; Gordoa, Ana
Palabras claveWild fish
Small-scale fishery
Fish farm
Fecha de publicación2016
CitaciónAquaculture Research : 1-11 (2016) doi:10.1111/are.12692
ResumenFish farms have been shown to aggregate large numbers of wild fish in their surroundings. Although little is known about how this affects the local fishery, two hypotheses have been put forward; a trapping and a protecting effect on wild fish. This study provides the first monitoring of commercial and recreational fishing activity at a fish farm. We assessed the effect on the small-scale fishery analysing the differences between fishing in farm proximity and away from the farm (in terms of catch rate, income and catch composition). Moreover, we estimated the biomass removal from fishing activities by farm employees inside the farm. The study was conducted from January 2011 to June 2012 at a Gilthead seabream farm in the NW Mediterranean. The findings revealed a relevant amount of commercial and recreational fishing effort in farm proximity. Yet, the results showed no benefit or difference of fishing in close proximity to the farm compared with areas away from the farm. Thus, we conclude that farm-aggregated fish are protected from the commercial fleet by the farm leasehold area, but remain vulnerable to hidden fishing practices inside the farm, where farm employees harvest more than 4 t of wild fish annually.
Descripción11 páginas, 5 figuras, 2 tablas.
Versión del editorhttp://dx.doi.org/10.1111/are.12692
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