Domingo, A., Pons, M., Jimenez, S., Miller, P., Barcelo, C. and Swimmer, Y. Bulletin of Marine Science Tests were conducted aboard pelagic longline vessels fishing off the coast of Uruguay, to determine the effect of hook type (circle hook vs J-hook) on the catch and length composition of target and non-target species. Both American and […]
August 2015
Reducing longline bycatch: the larger the hook, the fewer the stingrays | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on August 25, 2015 – 10:13 Reducing longline bycatch: the larger the hook, the fewer the stingrays Central Mediterranean SEa Bait size did not have a significant effect on stingray catch rates
Reducing longline bycatch: the larger the hook, the fewer the stingrays | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on August 25, 2015 – 10:11 Reducing longline bycatch: the larger the hook, the fewer the stingrays Central Mediterranean SEa Light attractants did not have a significant effect on stringray catch rate
Novel bait species | Consortium for Wildlife Bycatch Reduction
Changing the type of bait, such as switching from squid to mackerel, to deter non-target animals (such as sea turtles) that prefer one type of bait versus another. Submitted by morgaac on August 25, 2015 – 10:13 Submitted by morgaac on September 14, 2012 – 17:06 Circle hooks decreased loggerhead and leatherback catch; even more […]
Using pingers to reduce bycatch of small cetaceans in Peru's small-scale driftnet fishery | Consortium for Wildlife Bycatch Reduction
Mangel, J.C., Alfaro-Shigueto, J., Witt, M.J., Hodgson, D.J., and Godley, B.J. Jeffrey Mangel: [email protected] Acoustic pingers (Dukane Netmark 1000; frequency of 10-12 kHz and emit 300 ms tone every 4 sec with a source level range of 120-146 dB) were assessed to determine the effectiveness for reducing bycatch of dolphins and porpoises (common dolphins, dusky […]
Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands exclusive economic zone: an assessment of depredation levels and insights on possible mitigation strategies | Consortium for Wildlife Bycatch Reduction
Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier, C. Guinet The Patagonian toothfish longline fishery has high levels of depredation by killer and sperm whales, which puts the whales at risk of being bycatch. Observations from 2003 to 2008 revealed significant variations of interaction rates with killer whales between vessels, suggesting the influence […]
Behavioral responses of minke whales (Balaenoptera acutorostrata) to experimental fishing gear in a coastal environment | Consortium for Wildlife Bycatch Reduction
Kot, B.W., R. Sears, A. Anis, D.P. Nowacek, J. Gedamke, and C.D. Marshall Journal of Experimental Marine Biology and Ecology Elsevier, Amsterdam, The Netherlands Lead author: Brian W. Kot, [email protected] This investigation involved systematic trials and controls testing for behavioral responses of minke whales (N=42) to experimental fishing gear in a coastal environment. A remote sensing system was […]
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 […]
Evaluation of hook and bait type on the catch rates in the western North Atlantic Ocean pelagic longline fishery | Consortium for Wildlife Bycatch Reduction
Foster, D.G., Epperly, S.P., Shah, A.K. and Watson, J.W. Bulletin of Marine Science Research was conducted in the western North Atlantic Ocean to determine what effect changes to the hook design and bait type would have on pelagic longline bycatch. Three types of hooks, 18/0 and 20/0 circle hooks and 10/0 Japanese tuna hooks with […]
Effects of chemicals from longline baits on the biting behaviour of loggerhead sea turtles | Consortium for Wildlife Bycatch Reduction
Piovano, S., A. Farcomeni, and C. Giacoma African Journal of Marine Science [email protected] The biting behaviour of the loggerhead sea turtle, Caretta caretta, a high bycatch species by longling fishing gear, was studied on 30 wild specimens held temporarily at rescue centers. Chemicals from squid baits elicited significantly more biting behaviour than those from mackerel […]
Evaluation of a bycatch reduction technology by fishermen: a case study from Sicily | Consortium for Wildlife Bycatch Reduction
Piovano, S., G. Basciano, Y. Swimmer, C. Giacoma [email protected] The proven effectiveness of a bycatch reduction technology (BRT) does not guarantee its adoption by fishermen. This case study evaluated the willingness of Sicilian longline fishermen to use relatively large circle hooks (16/0) as a BRT for loggerhead sea turtles (Caretta caretta). Fishermen tested circle hooks […]
Reducing longline bycatch: the larger the hook, the fewer the stingrays | Consortium for Wildlife Bycatch Reduction
Piovano, S., S. Clo, and C. Giacoma Pelagic stingrays (Pteroplatytrygon violacea) are a common bycatch species in the Mediterranean pelagic longline swordfish fishery. Experimental trials took place in the central Mediterranean Sea from 2005 to 2007 to investigate the importance of bait size, presence and type of light attractors, and hook size and shape on […]
Behavioral responses of minke whales (Balaenoptera acutorostrata) to experimental fishing gear in a coastal environment | Consortium for Wildlife Bycatch Reduction
Kot, B.W., R. Sears, A. Anis, D.P. Nowacek, J. Gedamke, and C.D. Marshall Journal of Experimental Marine Biology and Ecology Elsevier, Amsterdam, The Netherlands Lead author: Brian W. Kot, [email protected] This investigation involved systematic trials and controls testing for behavioral responses of minke whales (N=42) to experimental fishing gear in a coastal environment. A remote sensing system was […]
Comparison of circle hook and J hook catch rate for target and bycatch species taken in the Korean tuna longline fishery during 2005-2006 | Consortium for Wildlife Bycatch Reduction
Kim, S.-S., An, DH., Moon, D.Y., and Hwang, S.-J. Western and Central Pacific Fisheries Commission National Fisheries Research and Development Institute, Busan, Korea Tests were conducted on tuna longline fishing vessels in the eastern Pacific Ocean to determine if the use of J (size 4.0 traditional) or circle hooks (sizes 15, 16 and 18) and […]