February 1st to 5th 2016
Olhão, Portugal
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Trawling and creeling for Nephrops fisheries. Comparison of environmental impacts and bycatch assessment.

Scientific Exhibition
Natural Resources
Wednesday, February 3, 2016 -
18:30 to 20:00

Marques, L. 1 Eichert, M. 2 Campos, A. 3 Castro, M. 4

1University of Algarve
2University of Algarve
3Instituto Português do Mar e da Atmosfera (IPMA)
4Centre of Marine Sciences (CCMAR), University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal

The Norway Lobster (Nephrops norvegicus) is a deepwater burrowing decapod crustacean with a widespread distribution ranging from Iceland, the Faroe Island and northwestern Norway to the south Atlantic coast of Morroco, with a patchy distribution in the Mediterranean Sea. On the Portuguese shelf and slope areas, adults are found at depths ranging from 150 to 800 meters and more. Along the years this species acquired some importance in the fisheries sector due to its market value, being nowadays one of the main target species of crustaceans in Europe. Fishing for this species has shown severe environmental impacts. Trawl fisheries in particular, are known to directly impact the bottoms and are associated with considerable amounts of bycatch and discards. Recently the European Community has turned the attention to creel fishery for Nephrops, encouraging the change from trawl to creels in order to reduce the amount of by-catch and discards. In this study we investigated the consequences of that gear change through the effects on Nephrops population, as well as on by-catch species affected by both gears. Possible consequences with respect to the EU landings obligation are discussed.
keywords: 
Nephrops norvegicus, bycatch, trawl, creel, management

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