Tulloch, V., Grech, A., Jonsen, I., Pirotta, V., and R. Harcourt Vivitskaia Tulloch Australian Rivers Institute, Griffith University, Nathan, Queensland 4111, Australia [email protected] Solutions to mitigate cetacean bycatch have targeted specific fisheries and gears, however, these targeted mechanisms can be effective if interactions occur only between a particular population and gear type or fishery. Most […]
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Interactions between sea turtles and dredge gear in the U.S. sea scallop (Placopecten magellanicus) fishery, 2001-2008 | Consortium for Wildlife Bycatch Reduction
[email protected] 1 508 495 2197 Fishery observer data was used to estimate interactions between hard shelled sea turtles and dredge gear in the US Mid Atlantic before and after the implementation of chain mats. A total of 288 annual interactions between hard shelled sea turtles and dredge gear were estimated to have occurred between 2001 […]
Benefits of square mesh codends in Queenslands scallop and prawn trawl fisheries | Consortium for Wildlife Bycatch Reduction
Campbell, M. and T. Courtney In Bycatch Communication Network Newsletter Preliminary results indicate square mesh codends on trawl gear, used with turtle excluder devices, decreased bycatch of small fish, small crabs, sea urchins, shellfish, and undersize scallops when compared to standard diamond-mesh net codends. Catch of targeted scallop and prawn were not reduced by the […]
Predicting bycatch hotspots for endangered leatherback turtles on longlines in the Pacific Ocean | Consortium for Wildlife Bycatch Reduction
Roe, J.H., Morreale, S.J., Paladino, F.V., Shillinger, G.L., Benson, S.R., Eckert, S.A., Bailey, H., Tomillo, P.S., Bograd, S.J., Eguchi, T., Dutton, P.H., Seminoff, J.A., Block, B.A., Spotila, J.R. Proceedings of the Royal Society B Use-intensity distributions for 135 satellite-tracked adult leatherback turtles were combined with longline fishing effort to estimate predicted bycatch risk over space […]
Spatio-temporal changes in catch rates of pelagic sharks caught by Japanese research and training vessels in the western and central North Pacific | Consortium for Wildlife Bycatch Reduction
Elsevier B.V. Registered Office: Radarweg 29, 1043 NX Amsterdam, The Netherlands National Research Institute of Far Seas Fisheries (NRIFSF), Japan Fisheries Research and Education Agency, 5-7-1 Orido, Shimizu-ku, Shizuoka-shi, Shizuoka-ken, 424-8633, Japan Key pelagic shark species are caught in the North Pacific by Japanese longline fisheries as bycatch. These species include blue shark (Prionace glauca) […]
Field Study 629 | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on January 26, 2012 – 08:30 In experiement 1, the mean number of seabirds appearing and the catch per unit effort (for seabirds) was not statistically different between the four tori-lines. In experiment 2, seabird attack rates (Laysan albatross and shearwater) were not statistic
Experiments in the Western Atlantic Northeast Distant Waters to Evaluate Sea Turtle Mitigation Measures in the Pelagic Longline Fishery. Report on Experiments Conducted in 2001-2003 | Consortium for Wildlife Bycatch Reduction
Watson, J.W., D. Foster, S. Epperly, and A. Shah US National Marine Fisheries Service, Pascagoula, MS, USA Circle hooks significantly reduce loggerhead (Caretta caretta) and leatherback (Dermocheles coriacea) sea turtle bycatch in Atlantic longline fisheries. Swordfish catch decreased when circle hooks were baited with squid but increased when baited with mackerel. Tuna catch increased when […]
A comparison of circle hook and J hook performance in a western equatorial Atlantic Ocean pelagic longline fishery | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on August 24, 2015 – 15:50 Equatorial Atlantic Ocean Bigeye tuna had higher catch rates when circle hooks were used Catch rates were lower for leatherback sea turtles and pelagic stingrays but not sailfish when circle hooks were used Bony Fishes Skates/Rays Demochelys coriacea (Leatherback sea turtle)
Elasmobranch captures in the Fijian pelagic longline fishery | Consortium for Wildlife Bycatch Reduction
Piovano, S. and Gilman, E. Aquatic Conservation: Marine and Freshwater Ecosystems Observer data collected between 2011 and 2014 from the Fijian longline fleet was analysed to characterize the shark and ray catch composition. In addition, factors that could significantly explain standardized catch rates were identified. Catch data were fitted to a generalized linear model to […]
The effectiveness of a seal scarer at a wild salmon net fishery | Consortium for Wildlife Bycatch Reduction
Harris, R.N., Harris, C.M., Duck, C.D., Boyd, I.L. ICES Journal of Marine Science doi:10.1093/icesjms/fst216 An acoustic deterrent device (ADD) was tested at a Scottish salmon double bagnet to deter seals (grey and harbor). The ADD was randomly assigned to be on or off during observations, which were carried out from shore. When the ADD was […]
The effect of light toriline on seabird by-catch and fish catch rates in the pelagic longline fishery off southern Brazil | Consortium for Wildlife Bycatch Reduction
Mancini, P.L., Bugoni, L., Neves, T., Monteiro, D.S., Estima, S.C. Collective Volume of Scientific Papers, ICCAT Projecto Albatroz, Av. dos Bancarios 76/22, Ponta da Praia, CEP 11030-300, Santos-SP, Brazil The use of light torilines (made with nylon monofilament branch lines and streamers made from other light material) on pelagic longlines reduced the incidental capture of […]
Design and assessment of two gear modifications to reduce the benthic impact and fuel intensity of prawn trawling in Australia | Consortium for Wildlife Bycatch Reduction
Sterling, D. and S. Eayrs ICES Journal of Marine Science Modified ground gear, known as batwing otter boards, created less disturbance to the seafloor than traditional otter boards in the Australian prawn trawl fishery, decreasing bycatch of benthic squirts and starfish by approximately 85-90%. The target catch of both prawns and scallops decreased by about […]
New branch line weighting regimes reduce risk of seabird mortality in the Australian pelagic longline fishery without affecting fish catch | Consortium for Wildlife Bycatch Reduction
Robertson, G., Candy, S. and Hall, S. Western and Central Pacific Fisheries Commission Australian Antarctic Division 203 Channel Highway Kingston, Tasmania Australia 7050 Two new branch weighting techniques were tested aboard Australian pelagic longline vessels to determine their effect on catch rates of both target and non-target species and their potential use for seabird mitigation. […]
Fishing gear threat to right whales (Eubalaena glacialis) in Canadian waters and the risk of lethal entanglement | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on May 19, 2016 – 14:01 Bay of Fundy and Scotian Shelf Lobster traps pose greatest threat during spring and summer migration periods (to/from Critical Habitat) Eubalaena glacialis (NA Right whale)