Fishery discards: Factors affecting their variability within a demersal trawl fishery

Jordan P. Feekings, Valerio Bartolino, Niels Madsen, Tom Catchpole

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Abstract

Discards represent one of the most important issues within current commercial fishing. It occurs for a range of reasons and is influenced by an even more complex array of factors. We address this issue by examining the data collected within the Danish discard observer program and describe the factors that influence discarding within the Danish Kattegat demersal fleet over the period 1997 to 2008. Generalised additive models were used to assess how discards of the 3 main target species, Norway lobster, cod and plaice, and their subcomponents (under and over minimum landings size) are influenced
by important factors and their potential relevance to management. Our results show that discards are influenced by a range of different factors that are different for each species and portion of discards. We argue that knowledge about the factors influential to discarding and their use in relation to potential mitigation measures are essential for future fisheries management strategies
Original languageEnglish
JournalPLOS ONE
Volume7
Issue number4
Pages (from-to)e36409
ISSN1932-6203
DOIs
Publication statusPublished - 2012

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