Effects of different slipping methods on the mortality of sardine, sardina pilchardus, after purse-seine capture off the portuguese southern coast (algarve).... The standard slipping procedure aggregated fish at high densities and made them "roll over" the floatline, while the modified procedure aggregated the fish at moderate densities and enabled them to escape through an opening created by adding weights to the floatline....
Effects of different slipping methods on the mortality of sardine, sardina pilchardus, after purse-seine capture off the portuguese southern coast (algarve)... The standard slipping procedure aggregated fish at high densities and made them “roll over” the floatline, while the modified procedure aggregated the fish at moderate densities and enabled them to escape through an opening created by adding weights to the floatline....
The catching efficiency of cod gillnets with different hanging ratio (e) and different floatline buoyancy.The floatline buoyancy seems to influence the catching efficiency of codgillnets....
