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A comparison of monofilament gillnet and small hook longline selectivity in a multispecies artisanal fishery in the Algarve, Southern Portugal
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Orientador(es)
Resumo(s)
As part of ongoing studies concerned with the small-scale fisheries of the South of Portugal, experimental fishing was carried out with
monofilament gillnets and small hook longlines within the same area. Sixty-two species were caught, of which 20 were common to both gears. Pronounced
differences in terms of the relative importance of different species in the catches were observed. Size selection patterns also differed, with highly
overlapped hook catch distributions and few species showing evidence for size selectivity. In contrast, strong selectivity was characteristic of species
which tend to be "wedged" in gillnets. Whereas smaller stretched mesh sizes (particularly 40 and 50 mm) caught significant numbers of illegal sized
fish, this was minimal in the longlines. Some implications for management are discussed.
Descrição
Palavras-chave
Fishery management Multispecies fisheries Marine fisheries Portugal Gillnets
Contexto Educativo
Citação
Editora
International Center for Living Aquatic Resources Management