Estimates of Spanish bottom otter trawl boarfish (Capros aper) discards by area in the Northeast Atlantic area.

Discard estimates for the Spanish bottom otter trawl fleets fishing in the Northeast Atlantic are presented for boarfish (Capros aper). Information was obtained by observers on board under different discard sampling programmes carried out by the Spanish research institute IEO. Raising based on effor...

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Bibliographic Details
Main Authors: Valeiras, J. (Julio), Araujo-Fernández, M.H. (María Hortensia), Pérez-Contreras, M.N. (María Nélida)
Format: Report
Language:unknown
Published: Centro Oceanográfico de Vigo 2012
Subjects:
Boarfish
Discards
Northeast Atlantic waters
Bottom Otter Trawl
Northeast Atlantic
Online Access:http://hdl.handle.net/10508/3747
Description
Summary:Discard estimates for the Spanish bottom otter trawl fleets fishing in the Northeast Atlantic are presented for boarfish (Capros aper). Information was obtained by observers on board under different discard sampling programmes carried out by the Spanish research institute IEO. Raising based on effort (number of trips) was used to estimate total discards in weight and associated coefficients of variation (CV) and number for the fleet. Discards length distributions are presented by year and fishing area. Total estimates indicates different trends in discarding, showing a decreasing trend in north coastal Spanish waters and a increasing trend in western Ireland waters.

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