Submitted by morgaac on April 14, 2010 – 14:25 Circle hooks did not affect catch rates or the size of the targeted catch Circle hooks reduced the incidental capture of immature sea turtles Caretta caretta (Loggerhead turtle)
September 2022
Kon's Covered Fisheye BRD Trial Report | Consortium for Wildlife Bycatch Reduction
Submitted by twerner on May 12, 2020 – 21:33 Kon’s Covered Fisheyes BRD Trial Report Prawns: White Banana (Fenneropenaeus merguiensis), Red-legged Banana (F. indicus), Brown Tiger (Penaeus esculentus), Grooved Tiger (P. semisulcatus), Blue Endeavour (Metapenaeus endeavouri), and Red Endeavour (M. ensis) Reduced bycatch if small individuals by 37.6%
Acoustic investigation of bycatch mitigation pingers | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on May 13, 2016 – 09:16 Acoustic investigation of bycatch mitigation pingers The current net/pinger configuration is adequate for humpback whales, dugongs and dolphins swimming at normal travelling speeds. The current pinger spacing is insufficient for dolphins swimming straight at the net at high speeds. Acoustic deterrent devices
An illuminating idea to reduce bycatch in the Peruvian small-scale gillnet fishery. | Consortium for Wildlife Bycatch Reduction
Submitted by lweiss on February 13, 2020 – 12:25 Elasmobranchs, tuna, dolphinfish Bycatch probability per set was reduced by up to 74.4% for sea turtles and 70.8 for small cetaceans in comparison to non-illuminated nets. For seabirds, nominal BPUE decreased by 84% in the presence of LEDs. Small Cetaceans (maximum length < 7.5 meters) Seabirds […]
The efficiency of sieve‐panels for bycatch separation in Nephrops trawls | Consortium for Wildlife Bycatch Reduction
Submitted by lweiss on March 3, 2020 – 10:40 The efficiency of sieve‐panels for bycatch separation in Nephrops trawls Norway lobster (Nephrops norvegicus) Optimal catch size of large Nephrops was too low for commercial use Bycatch of roundfish and flatfish was low
Experiment to Evaluate Gear Modification on Rates of Sea Turtle Bycatch in the Swordfish Longline Fishery in the Azores | Consortium for Wildlife Bycatch Reduction
Bolten, A. and K. Bjorndal Final Project Report submitted to the U.S. National Marine Fisheries Service. Archie Carr Center for Sea Turtle Research, University of Florida, Gainesville Circle hooks (non-offset 16/0 and 18/0) caught significantly more blue sharks than J hooks in the Azores longline swordfish and blue shark fisheries.
Field Study 367 | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on February 8, 2011 – 14:29 Efficiency of the circle hook in comparison with J-hook in longline fishery Target species catch rates were higher on circle hooks (2.2 individuals/1,000 hooks) compared to J-hooks (1.9 individuals/1,000 hooks). Swordfish caught by J-hooks were slightly larger than those caught on circle hooks. J-hooks caught a […]
The efficacy of illumination to reduce bycatch of eulachon and groundfishes before trawl capture in the eastern North Pacific ocean shrimp fishery | Consortium for Wildlife Bycatch Reduction
Submitted by lweiss on February 13, 2020 – 11:47 Ocean shrimp (Pandalus jordani) No change in average catch efficiency or length-dependent catch efficiency. Illumination reduced bycatch of eulachon (Thaleichthys pacificus) and yellowtail rockfish (Sebastes flavidus), but did not result in significant changes in the bycatch of other rockfish (Sebastes spp.) and flatfish
Field Study 709 | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on August 23, 2012 – 12:35 Sock DMD did not affect catch rates of target species Sock DMD did not affect depredation. Shark depredation was higher Small Cetaceans (maximum length < 7.5 meters)
Field Study 371 | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on February 14, 2011 – 15:29 Trial 1, experimental net 1 caught 17% fewer prawns than the control net. Trial 2, experimental net 2 caught 2% fewer prawns than the control net. Trial 1, experimental net caught 44% fewer crabs and mantis shrimp and 49% fewer murex than control net. Trial 2, […]
Fishing gear modifications to reduce elasmobranch mortality in pelagic and bottom longline fisheries off Northeast Brazil | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on May 17, 2011 – 12:10 tuna (pelagic) and sharks (bottom) None reported for pelagic longlines. On bottom longlines, CPUE was higher for blacknose and nurse sharks and southern stingrays; no CPUE difference between hook type; more tiger and blacknose sharks were alive at haulback with circle hooks CPUE was significantly higher […]
Review and evaluation of three mitigation measures-bird-scaring line, underwater setting and line shooter-to reduce seabird bycatch in the north Atlantic longline fishery | Consortium for Wildlife Bycatch Reduction
Svein Lokkeborg, Institute of Marine Research, Fish Capture Division, PO Box 1870 Nordnes, N-5817 Bergen, Norway [email protected] Bird-scaring lines, underwater setting and line shooters all reduced the incidental capture of seabirds, with bird-scaring lines being the most effective. These mitigation measures also reduced bait loss and increased the catch rates of target species.
Reducing bycatch in coral reef trap fisheries: escape gaps as a step towards sustainability | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on September 29, 2015 – 07:35 Catches of high-value fish were not affected Short and tall gap traps reduced bycatch of bycatch fish by 74% and 80%, key herbivores by 58% and 50% and butterflyfish by 90% and 98%, respectively.
Reducing seabird bycatch in the South African joint venture tuna fishery using bird-scaring lines, branch line weighting and nighttime setting of hooks | Consortium for Wildlife Bycatch Reduction
Melvin, E.F., Guy, T.J. and Read, L.B. Washington Sea Grant University of Washington Box 355020 Seattle, WA 98195 [email protected] Several seabird bycatch mitigation techniques were tested aboard distant water tuna fisheries in the South African EEZ. Two types of bird scaring designs, light lines with short streams vs. hybrid lines with a mix of streamer […]