Turkish Journal of Fisheries and Aquatic Sciences [email protected] +90 464 223 33 85/1440 Gill nets fitted with Dukane NetMark 1000 pingers had significantly less bycatch of harbor porpoises than control nets and the fish size and catch rates of the target species were not affected. http://www.trjfas.org/pdf/issue_9_2/151_157.pdf
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Reduction of seal-induced catch and gear damage by modification of trap-net design: Design principles for a seal-safe trap net | Consortium for Wildlife Bycatch Reduction
Suuronen, P., A. Siira, T. Kauppinen, R. Riikonen, E. Lehtonen, and H. Harjunpaa A trap-net modification reduced seal-induced [Grey seal (Halichoerus grypus) and Ringed seal (Phoca hispida botnica)] catch and gear damage in the northern Baltic Sea trap-net fishery for salmon (Salmo salar) and whitefish (Coregonus lavaretus). Target catch remained the same or increased in […]
Challenges of estimating post-release mortality of istiophorid billfishes caught in the recreational fishery: A review | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on September 8, 2015 – 12:33 High speed trolling with J hooks and artificial bait and slow trolling with circle hooks and natural bait resulted in less internal hooking, tissue damage and increase post release survival. Artificial bait Circle hooks
The effects of neodymium-iron-boron permanent magnets on the behavior of the small spotted catshark (Scyliorhinus canicula) and the thornback skate (Raja clavata) | Consortium for Wildlife Bycatch Reduction
Smith, L.E .and C.P. O’Connell Ocean & Coastal Management [email protected] [email protected] Neodymium-iron-boron (Nd2Fe14B) permanent magnets were used to test behavioral responses in spotted catsharks (Scyliorhinus canicula) and thornback skates (Raja clavata). Both species significantly avoided the Nd2Fe14B magnets more often in comparison to the control and procedural control and they fed significantly more from the control […]
An assessment of bycatch reduction devices in Kuwait's shrimp trawl fishery | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on September 21, 2015 – 13:32 An assessment of bycatch reduction devices in Kuwait’s shrimp trawl fishery Did not significantly reduce shrimp catches TED use resulted in no interactions with sea turtles or large animals; did not significantly reduce bycatch catches
Development and observations of spiny dogfish Squalus acanthias reduction device in a raised footrope silver hake Merluccius bilinearis trawl | Consortium for Wildlife Bycatch Reduction
Chosid, D.M., Pol, M., Szymanski, M., Mirarchi, F. and Mirarchi, A. [email protected], [email protected], [email protected], [email protected], [email protected] An excluder grate (grid) was tested in the silver hake trawl fishery in Massachusetts Bay to determine it’s effectiveness in reducing spiny dogfish bycatch. The effects of color (white or black), angle and direction of the 50 mm spaced […]
Results of the 1986-87 California sea lion-steelhead trout predation control program at the Hiram M. Chittenden Locks. NWAFC Processed Report 88-30, Alaska Fisheries Science Center, NMFS, NOAA, Seattle, Washington. | Consortium for Wildlife Bycatch Reduction
Gearin, P.J., R. Pfeifer, S.J. Jeffries, R.L. DeLong, and M.A. Johnson. Over time, noxious bait, consisting of dead steelhead containing lithium chloride, did not prevent California sea lion (Zalophus californianus) predation of Washington steelhead trout (Salmo gairdneri). Acoustic harassment devices worked only for a short time in reducing California sea lion depredation before sea lions […]
Effects of square-mesh panels in codends and of haulback delay on bycatch reduction in the oceanic prawn-trawl fishery of New South Wales, Australia | Consortium for Wildlife Bycatch Reduction
Broadhurst, M.K., Kennelly, S.J., O’Doherty, G. Fisheries Research Institute, N.S.W. Fisheries PO Box 21 Cronulla, New South Whales 2230 Australia Codends modified with rectangular mesh panels (one oriented length-wise in the cod end and one oriented width-wise, each measuring 7 x 11 bars) reduced the weight of discarded bycatch by 46% and 38% respectively but did […]
Significant conservation benefits obtained from the use of a new fishing gear in the Chilean Patagonian toothfish fishery | Consortium for Wildlife Bycatch Reduction
Moreno, C.A., Castro, R., Mújica, L.J., and Reyes, P. C. Moreno: [email protected] A modified longline system with a net sleeve and weight on the secondary vertical line was tested in the Chilean Patagonian toothfish fishery. A net sleeve that deploys to cover the fish/hook when hauled and a weight were attached to the vertical hook […]
Selectivity of three artisanal fishing gears used for the capture of the white shrimp, Litopenaeus schmitti, in the Bay of El Tablazo, Zulia State, Venezuela | Consortium for Wildlife Bycatch Reduction
Andrade de Pasquier, G., S. Ramírez and J. Delgado II Foro Iberoamericano de los recursos marinos y la acuicultura Universidad de Oriente, Cumana, Venezuela The white shrimp, Litopenaeus schmitti, is one of the fishery resources of greater monetary value in Venezuela. This species represents about 90% of the catch of penaeid shrimp of Lake Maracaibo, […]
Field Experiments Show That Acoustic Pingers Reduce Marine Mammal Bycatch in the California Drift Gill Net Fishery | Consortium for Wildlife Bycatch Reduction
Barlow, J. and Cameron, G.A. Pingers reduce bycatch of California sea lions (Zalophus californianus) and short-beaked common dolphins (Delphinus delphis) in the California drift gillnet fishery for swordfish and sharks. Catch of target fish species (broadbill swordfish, common thresher shark, and shortfin mako shark) and non-target species were not affected by pinger use. http://www.cetaceanbycatch.org/Papers/barlo03.pdf
Pingers as deterrents of bottlenose dolphins interacting with trammel nets | Consortium for Wildlife Bycatch Reduction
Submitted by AMackay on February 10, 2009 – 12:05 Pingers as deterrents of bottlenose dolphins interacting with trammel nets Increased target catch and reduced dolphin damage to the catch Reduced bottlenose dolphin (Tursiops truncatus) depredation Small Cetaceans (maximum length < 7.5 meters) Acoustic deterrent devices
The effects of hook and bait sizes on size selectivity and capture efficiency in Icelandic longline fisheries | Consortium for Wildlife Bycatch Reduction
Ingólfsson, Ó. A., Einarsson, H. A., Løkkeborg, S The study investigated the effects of bait size and hook size on catching efficiency and size selectivity in Icelandic longline fisheries targeting cod (Gadus morhua), haddock (Melanogrammus aeglefinus), tusk (Brosme brosme), ling (Molva molva) and wolffish (Anarhichas lupus). Five sizes of hooks and two sizes of bait were tested. Larger […]
Reducing bycatch: can acoustic pingers keep Hector's dolphins out of fishing nets? | Consortium for Wildlife Bycatch Reduction
Stone, G., Kraus, S., Hutt, A., Martin, S., Yoshinaga, A. & Joy, L. Marine Technology Society Journal Acoustic pingers were tested for their effectiveness to reduce entanglement of Hector’s dolphins in New Zealand gillnets. A remote control device was used to raise either active or passive acoustic pingers near Hector’s dolphins. The dolphins’ movement and […]