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A cost-benefit analysis of improving trawl selectivity in the case of discards: The Nephrops norvegicus fishery in the Bay of Biscay ArchiMer
Macher, Claire; Guyader, Olivier; Talidec, Catherine; Bertignac, Michel.
The Nephrops trawl fishery is one of the most important fisheries in the Bay of Biscay. The fishery management essentially relies on conservation measures, a total at I owed catch (TAC) for Nephrops together with a mini mum landing size (MLS) and minimum trawl mesh size (70 mm stretched mesh). These measures have failed to prevent high discard levels of many species that characterize the fishery. Nephrops trawlers thus discard about half of their Nephrops catches in numbers (a third in weight) of which only 30% survive. Nephrops discards mainly occur in younger Nephrops age groups below the MLS. This is a waste for the already overexploited Nephrops stock as well as for the fleet. Based on a bio-economic simulation model, the paper analyses the...
Tipo: Text Palavras-chave: Fisheries management; Discards; Selectivity; Cost benefit analysis; Bio economic simulations; Nephrops norvegicus.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4478.pdf
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