Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 345767
Title Bycatch and release of pelagic megafauna in industrial trawler fisheries off Northwest Africa
Author(s) Zeeberg, J.J.; Corten, A.A.H.M.; Graaf, E. de
Source Fisheries Research 78 (2006)2-3. - ISSN 0165-7836 - p. 186 - 195.
Department(s) RIVO Biologie en Ecologie
Publication type Refereed Article in a scientific journal
Publication year 2006
Keyword(s) leatherback turtles - atlantic - ocean - sea
Abstract The accidental capture of large animals such as sharks, manta rays, sea turtles, and dolphins in pelagic trawler fisheries remains controversial because it threatens biological diversity in many biogeographical regions, including the subtropical eastern North Atlantic. Bycatch rates observed during more than 1400 trawl sets off Mauritania, Northwest Africa, are shown to have been considerable during the past 4 years, with high animal abundance in Summer when the Northwest African shelf is occupied by subtropical water. We demonstrate the urgency for bycatch reduction and evaluate the use of species-selective gear, a conservation method immediately available and immediately effective in waters fished through international access agreements. A modification tested in commercial trawls during the observer program guides pelagic megafauna deflected by a filter to an escape tunnel along the bottom of the trawl. This ¿excluder¿ reduces bycatch mortality of the most vulnerable megafauna species by at least 40¿100%
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