Mar 26, 2021 · What is “bycatch”? Is “dolphin-safe” tuna really safe? The new Netflix documentary “Seaspiracy” answers these burning questions and others.

Bycatch is one of the most serious threats to the recovery and conservation of sea turtles. Many U.S. fisheries have rules in place to reduce sea turtle bycatch, and cooperative fishing gear research with fishermen is ongoing.

Longlines, trawling and the use of gillnets are the fishing methods that most commonly result in bycatch. Longlining is a commercial fishing method commonly targeting swordfish, tuna and halibut, where hundreds or thousands of baited hooks hang at intervals along a single fishing line.

Mar 7, 2025 · Tuna bycatch refers to the unintentional capture of non-target species that occurs during tuna fishing operations. While tuna fishing targets specific tuna species, other marine life often becomes entangled in fishing gear or is caught alongside the desired catch.

Jun 14, 2023 · Our work represents the first quantitative evaluation of the magnitude of bycatch in the industrial Purse seine and longline fisheries operating in the WCPFC Convention Area, which are the world's largest in terms of tuna catch.

ISSF is researching how acoustic discrimination of tuna species at FADs, using echosounder technology, may help fishers to more precisely target certain tuna species and avoid catching bycatch species.

Longline fishing has one of the highest rates of bycatch among the gear types used in commercial tuna fisheries. But, there are existing, proven best practices that can reduce bycatch, including using circle hooks, setting lines at night, and eliminating wire leaders.

Dec 1, 2023 · Bycatch are all of the nontarget species of marine life that are scooped up in fishing nets or on hooks in addition to the target fish. Bycatch can include a range of different animals, from fish to seabirds and even whales. Bycatch causes serious physical harm — and often death — in marine life.

Fisheries bycatch is a threat to marine mammals worldwide. Bycatch occurs when marine mammals are incidentally caught in fishing gear (e.g., hooked, entangled, or trapped) or when they eat bait or catch.

Dec 1, 2017 · It identifies the most common species composing bycatch of the main tuna fisheries using purse seine and longline gear. Considerations of options available to estimate bycatch, their...