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 […]
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Efficiency and environmental impacts of three different queen scallop fishing gears | Consortium for Wildlife Bycatch Reduction
A new toothless dredge design called the “Newhaven” was tested in the Isle of Man queen scallop fishery, to determine it’s effect on both catch and bycatch. This new dredge design caught significantly more queen scallops compared to the traditional tooth dredge. However, there was no significant difference between the abundance of bycatch between […]
At sea testing of the Popeye Fishbox bycatch reduction device onboard the FV Adelaide Pearl for approval in Australia's northern prawn fishery | Consortium for Wildlife Bycatch Reduction
Tests were conducted to determine if twin trawl nets containing a Turtle Excluder Device (TED) and a Popeye Fishbox caught less bycatch then nets fitted only with a TED. Nets that had the Popeye Fishbox located 70 meshes from the codend draw strings had a 48% reduction in the weight of small bycatch, an 87% […]
Sea otter mortality in fish and shellfish traps: estimating potential impacts and exploring possible solutions | Consortium for Wildlife Bycatch Reduction
Sea otters are caught and drowned in fishing pots and traps. Live California sea otters were exposed to finfish traps, lobster traps, and mock Dungeness crab traps in captive trials. Researchers found that the otters attempted to enter the circular and rectangular fyke openings and some became entrapped. They determined that a 3×9 inch opening, rather […]
Seabird longline bycatch reduction devices increase target catch while reducing bycatch: A meta-analysis | Consortium for Wildlife Bycatch Reduction
A meta-analysis of 15 papers examined the general impact of seabird BRD technology upon commercial longline fishing operations. Since there were relatively few papers with data suitable for meta-analysis, the researchers pooled studies with BRD-and fishery-related metrics included as covariates. The analysis found a small (9%) increase in target catch with BRD use in longline […]
Homepage | Consortium for Wildlife Bycatch Reduction
A network for learning and collaborating on reducing bycatch We conduct research on bycatch reduction techniques. Learn more Get access to information, global expertise, and become part of the solution. Learn more
Homepage | Consortium for Wildlife Bycatch Reduction
A network for learning and collaborating on reducing bycatch We conduct research on bycatch reduction techniques. Learn more Get access to information, global expertise, and become part of the solution. Learn more
Marine Stewardship Council Principle 2 (Environmental Impacts) Workshop, Latin America | Consortium for Wildlife Bycatch Reduction
This workshop presents information to fishery representatives in Latin America that will help them enter the certification process. For those that may have an issue with bycatch, the Global Bycatch Exchange can be a useful resource that presents information and potential solutions. This workshop gives an opportunity for fishery representatives to give feedback on what […]
Evaluation of seal harassment techniques to protect gill netted salmon. | Consortium for Wildlife Bycatch Reduction
Harbor seals (Phoca vitulina) appeared to habituate to acoustic harassment devices placed on gillnets in the Oregon salmon fishery. Results, although inconclusive, demonstrate a possible reduction in damaged salmon, at least in the short-term.
Whale Shark | Consortium for Wildlife Bycatch Reduction
Historically, the whale shark has been hunted for its meat and liver oil. Whale shark fins are considered inferior in quality and the species is generally not targeted for its fins, although a market for them does exist in Asia due to their massive size (Norman 2005). Despite the fact that there is a paucity […]
Entanglements of North Atlanntic right whales in northwestern lobster and crab pot fisheries | Consortium for Wildlife Bycatch Reduction
New England doesn’t show much in the spring on land. For me the arrival of spring is when Critically Endangered North Atlantic right whales appear off of Cape Cod, after hanging out south before migrating northward where most spend their summer. And, alas, we have the news in the attached You Tube link on yet […]
New publication on baleen whale bycatch | Consortium for Wildlife Bycatch Reduction
Reducing Excess Rope Strength in Fishing Gear Could Cut Whale Deaths from Entanglements by 72 percent BOSTON (December 2015) – Along the U.S. East Coast and the Canadian Maritimes, reports of a whale entangled in ropes used in commercial fishing are a near weekly event. When a whale gets entangled in these ropes, the event […]
Development of acoustic deterrent device to mitigate seal fisheries interactions:interim report | Consortium for Wildlife Bycatch Reduction
Preliminary field studies were carried out on a potentially cetacean-friendly acoustic deterrent system for seals (played using underwater loudspeakers). The “smart seal deterrent signal” produces a startle response in seals rather than an aversion to a very loud noise, and is transmitted at a sound level which is not harmful to seals, even at very […]
Reactions of harbor porpoises Phocoena phocoena and herring Clupea harengus to acoustic alarms | Consortium for Wildlife Bycatch Reduction
Harbor porpoise (Phocoena phocoena) avoided an area around a non-lethal, experimental gillnet equipped with a pinger in British Columbia, Canada. In a separate experiment with gillnets in the Baltic Sea, pingers did not affect the catch of targeted herring (Clupea harengus).