Some sources of variation in the assessment when introducing unaccounted mortality due to discarding practices. The case of Southern Four spot megrim stock.

• Main Authors: Lema-Varea, L. (Laura), Pérez-Contreras, M.N. (María Nélida), Duarte, R. (Rafael), Lucio, P. (Paulino)
• Format: Conference Object
• Language: English
• Published: Centro Oceanográfico de Vigo 2002
• Subjects: Discard mortality; Assessment; Simulation; Lepidorhombus boscii; Hake; Iceland
• Online Access: http://hdl.handle.net/10508/8917

Four spot megrim (Lepidorhombus boscii) is widely distributed in Atlantic waters form Iceland to Cape Bojador. In ICES Divisions VIIIc and IXa, Portuguese and Spanish ships captured this species as by-catch mainly in mixed bottom trawl fisheries. Only one exploitation unit of this species is assesse...