GadCap: A GADGET multispecies model for the Flemish Cap cod, redfish and shrimp.
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AuthorsPérez-Rodríguez, A. (Alfonso); Howell, D. (Daniel); Casas-Sánchez, J.M. (José Miguel); Saborido-Rey, F. (Fran); Ávila-de-Melo, A. (Antonio); González-Costas, F. (Fernando); González-Troncoso, D. (Diana)
Since late 1980s, the demersal community of Flemish Cap (NAFO area 3M) has experienced large variations (including the collapse) in the abundance and population structure of its main fishing resources: cod Gadus morhua, redfish Sebastes sp. and shrimp Pandalus borealis, with alternation in their dominant role in the ecosystem. GadCap is an EU project dealing with the development of a GADGET multispecies model for the Flemish Cap cod, redfish and shrimp, as part of the NAFO roadmap for the EAF. The effect of fishing, trophic interactions (including cannibalism) and water temperature in the dynamic of these three major fishing resources has been modeled. The results highlight the interdependent dynamic of these stocks, and reveals strong interactions between recruitment, fishing and predation (including cannibalism), with marked changes in their relative importance by species-age-length over time. The multispecies model shows that disregarding the species interactions would lead to serious ...
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