Yellowtail flounder, redfish (Sebastes spp) and Witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area
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AuthorsGonzález-Troncoso, D.M. (Diana María); González-Iglesias, M.C. (María de la Concepción); Paz, X. (Xabier)
Since 1995, Spain carries out a stratified random spring bottom trawl survey in Div. 3NO of the NAFO Regulatory Area. The entire series of mean catches, biomass and length distribution for Yellowtail flounder (Limanda ferruginea) are presented for the period 1995-2010, for redfish (Sebastes spp) for the period 1997-2010 and for Witch flounder (Glyptocephalus cynoglossus) for the period 2002-2010. For Yellowtail flounder, there is no a clear trend since 1998; its indices are almost constant along this period, with a sligth increase in the last two years. The indices of redfish were variable over the time; its pelgic and aggregated behaviour makes that the accesibility to the gear is very variable. We can see a sharp increase in year 2009 following with a sligth decrease in 2010 but still very high with regards to the previous values. There are no recent good recent recruitments. For Witch flounder there is no clear trend in the entire presented series, being the values always poor. The ...
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