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Modelling discard ogives from Irish demersal fisheries

Borges, L. and Zuur, A.F. and Rogan, E. and Officer, R. (2006) Modelling discard ogives from Irish demersal fisheries. ICES Journal of Marine Science, 63 (6). pp. 1086-1095.

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Article Link(s): http://dx.doi.org/10.1016/j.icesjms.2006.03.017

Publisher URL: http://www.oxfordjournals.org/

Abstract

Annual discard ogives were estimated using generalized additive models (GAMs) for four demersal fish species: whiting, haddock, megrim, and plaice. The analysis was based on data collected on board commercial vessels and at Irish fishing ports from 1995 to 2003. For all species the most important factors influencing annual discard ogives were fleet (combination of gear, fishing ground, and targeted species), mean length of the catch and year, and, for megrim, also minimum landing size. The length at which fish are discarded has increased since 2000 for haddock, whiting, and plaice. In contrast, discarded length has decreased for megrim, accompanying a reduction in minimum landing size in 2000.

Item Type:Article
Additional Information:© 2006 International Council for the Exploration of the Sea.
Keywords:Demersal fisheries; discard ogives; GAM; haddock; megrim; plaice; whiting.
Subjects:Aquaculture and Fisheries
Aquaculture and Fisheries > Fisheries
Deposited On:03 Feb 2009 00:42
Last Modified:08 Sep 2010 00:37

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