Unanswered Forum Topics

This study investigated the effectiveness of retention bans for reducing shark mortality in longline and gillnet fisheries, as reported in 160 relevant studies across 341 shark species. Results suggest that retention bans can reduce shark mortality when averaged across all species, but that species with lower intrinsic population growth rates benefit less from a retention ban than those with higher rates of population growth.

This study investigated the effectiveness of retention bans for reducing shark mortality in longline and gillnet fisheries, as reported in 160 relevant studies across 341 shark species. Results suggest that retention bans can reduce shark mortality when averaged across all species, but that species with lower intrinsic population growth rates benefit less from a retention ban than those with higher rates of population growth.

This review paper reflects on the past 50 years of efforts to save the vaquita (Phocoena sinus) from extinction, with the primary threat being lethal bycatch in gillnets set for the totoaba fish in the upper Gulf of California. Both the conservation goals for the vaquita and the economic and social goals for the local fisheries have consistently failed to meet even the lowest stakeholder expectations, and the vaquita population has continued to decline.

This review paper reflects on the past 50 years of efforts to save the vaquita (Phocoena sinus) from extinction, with the primary threat being lethal bycatch in gillnets set for the totoaba fish in the upper Gulf of California. Both the conservation goals for the vaquita and the economic and social goals for the local fisheries have consistently failed to meet even the lowest stakeholder expectations, and the vaquita population has continued to decline.

This review paper reflects on the past 50 years of efforts to save the vaquita (Phocoena sinus) from extinction, with the primary threat being lethal bycatch in gillnets set for the totoaba fish in the upper Gulf of California. Both the conservation goals for the vaquita and the economic and social goals for the local fisheries have consistently failed to meet even the lowest stakeholder expectations, and the vaquita population has continued to decline.

This review paper reflects on the past 50 years of efforts to save the vaquita (Phocoena sinus) from extinction, with the primary threat being lethal bycatch in gillnets set for the totoaba fish in the upper Gulf of California. Both the conservation goals for the vaquita and the economic and social goals for the local fisheries have consistently failed to meet even the lowest stakeholder expectations, and the vaquita population has continued to decline.

This review paper reflects on the past 50 years of efforts to save the vaquita (Phocoena sinus) from extinction, with the primary threat being lethal bycatch in gillnets set for the totoaba fish in the upper Gulf of California. Both the conservation goals for the vaquita and the economic and social goals for the local fisheries have consistently failed to meet even the lowest stakeholder expectations, and the vaquita population has continued to decline.

This summary study describes all identified fishing techniques that have been used globally to reduce unintended species bycatch, to improve clarity on available techniques and highlight opportunities for further research and development. Of the total 55 techniques identified, the majority are specific to long-line fisheries and to designed to benefit small mammals, seabirds, and sea turtles. Additionally, the majority of techniques (81%) attempt to avoid contact of bycatch species with fishing gear altogether, rather than attempting escape or release.

By modeling (GLMs and GAMs) data from onboard observers and logbooks, the authors investigated patterns in loggerhead sea turtle (Caretta caretta) bycatch in bottom trawlers in the Southern Adriatic Sea. Results indicate that most bycatch occurs during the daytime and in shallower coastal waters, and that it increases temporally in summer and autumn. The study also identified two bycatch hotspots: the Gargano promontory and off the coast of Brindisi.

By modeling (GLMs and GAMs) data from onboard observers and logbooks, the authors investigated patterns in loggerhead sea turtle (Caretta caretta) bycatch in bottom trawlers in the Southern Adriatic Sea. Results indicate that most bycatch occurs during the daytime and in shallower coastal waters, and that it increases temporally in summer and autumn. The study also identified two bycatch hotspots: the Gargano promontory and off the coast of Brindisi.

By modeling (GLMs and GAMs) data from onboard observers and logbooks, the authors investigated patterns in loggerhead sea turtle (Caretta caretta) bycatch in bottom trawlers in the Southern Adriatic Sea. Results indicate that most bycatch occurs during the daytime and in shallower coastal waters, and that it increases temporally in summer and autumn. The study also identified two bycatch hotspots: the Gargano promontory and off the coast of Brindisi.

By modeling (GLMs and GAMs) data from onboard observers and logbooks, the authors investigated patterns in loggerhead sea turtle (Caretta caretta) bycatch in bottom trawlers in the Southern Adriatic Sea. Results indicate that most bycatch occurs during the daytime and in shallower coastal waters, and that it increases temporally in summer and autumn. The study also identified two bycatch hotspots: the Gargano promontory and off the coast of Brindisi.