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Research Document - 2012/151

Bycatch in the Estuary and Gulf of St. Lawrence Northern shrimp fishery

By L. Savard, J. Gauthier, H. bourdages, and M. Desgagnés

Abstract

In the Gulf of St. Lawrence, the only type of authorized northern shrimp fishery is a commercial fishing practised with a trawl for which the minimal mesh size is 40 mm. Although large individuals are released from the trawl through mandatory use of a separator grate, a certain number of small specimens remain in the catches. This report documents the composition and size of bycatches in the Gulf shrimp fishery between 2000 and 2011, and assesses whether their nature and scale pose concerns for sustainability of populations.

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