Potential use of a Nordmøre grid for by-catch reduction in a Portuguese bottom-trawl multispecies fishery

Life cycle assessment of horse mackerel fisheries in Galicia (NW Spain): Comparative analysis of two major fishing methods

“…Finally, the increasing consequences of climate change are also changing the physical properties of world oceans, leading to additional pressure on fish stocks (Badjeck et al, 2010). Therefore, the improvement of fishery management not only must be linked to efforts to reduce by-catch and discards, the disturbance created in benthic communities due to the use of trawlers and other types of gear, or the alteration of trophic dynamics (Fonseca et al, 2005), but also to analysing and mitigating the effects that global warming may produce over world fisheries.…”

Modeling of available size selectivity of the SURF-BRD for shrimp beam trawl

“…The combination of contact selection and contact probability was termed the available selection model by Millar and Fryer [12]. This available selection model has been used to determine the separation of the grid separator [13,14], the square mesh bycatch reduction window [15,16], selectivity for the cod-end when the mesh of the cod-end is clogged by the catch [17], and the effect of the dredge tooth spacing on selectivity for bivalves [18,19].…”

The effect of forced mesh opening in the upper panel of a Nephrops trawl on size selection of Nephrops, haddock and whiting

“…For size selection of fish, two methodological approaches are used, one is to insert size selection devices in, or in front of the codend, such as square mesh panels (Armstrong et al, 1998;Briggs and Robertson, 1993) or rigid grids (Fonseca et al, 2005) to allow for escape of juvenile fish, while the other approach is to separate fish from Nephrops to retain the catches in separate codends with different mesh sizes (Graham and Fryer, 2006;Ingólfsson, 2009).…”