Campbell, M. J., Tonks, M. L., Miller, M., Brewer, D. T., Courtney, A. J., and C.A Simpfendorfer Matthew J. Campbell Queensland Department of Agriculture and Fisheries, Ecosciences Precinct, GPO Box 267, Brisbane, Queensland, 4001, Australia [email protected] The study quantified the impact of turtle excluder devices (TEDs) on the catches of various elasmobranchs caught off northern […]
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Bottom trawl catch comparison in the Mediterranean Sea: Flexible Turtle Excluder Device (TED) vs traditional gear | Consortium for Wildlife Bycatch Reduction
Submitted by lweiss on December 13, 2019 – 10:24 No significant loss of commercial weight of fish, similar rates of capture without any significant loss of sizes (with the exception of anglerfish), significant reduction of debris in the codend Unknown (no turtles captured in either control or experimental trawls) Caretta caretta (Loggerhead turtle)
State-space mark-recapture estimates reveal a recent decline in abundance of North Atlantic right whales | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on October 5, 2018 – 08:48 The abundance of right whales has declined since 1990 and there has been a reduced survival rate for females compared to males Eubalaena glacialis (NA Right whale)
Marine turtle interaction with purse seine fishery in the Atlantic and Indian Oceans: lessons for management | Consortium for Wildlife Bycatch Reduction
Bourjea, J., Clermont, S., Delgado, A., Murua, H., Ruiz, J., Ciccione, S. and Chavance, P. [email protected] Observer data from European purse seine vessels operating in the Atlantic and Indian Ocean (1995-2011) were used to assess spatial and temporal variation in sea turtle bycatch rates. Information from both free swimming school sets and sets made on […]
Implications of fishing rope strength on the severity of large whale entanglements | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on March 30, 2016 – 17:54 Ropes with a breaking strength of 1,700 lbs or less could reduce life-threatening entanglements of North Atlantic Right whales by at least 72%. Right and humpback were entangled in ropes with stronger breaking strength than those involving minke whales.
Field Study 570 | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on September 6, 2011 – 15:03 Tuna, blue sharks, swordfish Catch rates of targeted species including bigeye and albacore tuna and blue sharks were increased with the use of circle hooks, while no difference was found for yellowfin tuna, shortfin mako or hammerhead sharks or for dolphinfish. The incidental capture of loggerhead […]
Entanglements of large cetaceans in Peru: few records by high risk | Consortium for Wildlife Bycatch Reduction
Garcia-Godos, I., Waerebeek, K.V., Alfaro-Shigueto, J., Mangel, J.C. Entanglements of large cetaceans in fishing gear that occurred off the coast of Peru between 1992 and 2012 were catalogued. Direct observations, local news and online graphical evidence was used to identify any entanglements. A total of 15 confirmed entanglements were identified. The species involved in these […]
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 […]
Depredation of catch by bottlenose dolphins (Tursiops truncatus) in the Florida king mackerel (Scomberomorus cavalla) troll fishery | Consortium for Wildlife Bycatch Reduction
Zollett, E.A. and A.J. Read A quick-release metal wire added to the Florida king mackerel troll fishery reduced depredation of catch by bottlenose dolphin (Tursiops truncatus). There was no impact on king mackerel catch. http://fishbull.noaa.gov/1043/zollett.pdf
Drag from fishing gear entangling North Atlantic right whales | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on October 5, 2018 – 11:00 Drag from fishing gear entangling North Atlantic right whales Information suggests that on average entanglements increase drag and propulsive power by 1.47 fold. Reducing trailing line length by 75% can reduce parasitic gear drag by 85%. Large Cetaceans (maximum length > 7.5 meters)
Influence of hook type and fishing depth on longline catches of sharks and other pelagic speices in the northwest Mexican Pacific | Consortium for Wildlife Bycatch Reduction
Galeana-Villasenor, I., Galvan-Magana, F. and Gomez-Aguilar, R. Revista de Biologia Marina y Oceanografia Four types of hooks–J-style, tuna hook, tuna 18 offset and circle hooks–were tested on pelagic loglines fishing close to Mazatlan Mexico to determine their effectiveness at catching sharks and other pelagic species. Circle hooks had the highest catch rates for the principal […]
Field Study | Consortium for Wildlife Bycatch Reduction
Submitted by Musyl on November 14, 2013 – 16:28 Predicting postrelease survival in large pelagic fish. pelagic sharks and fishes examined in other research examing post-release of blue shark released from longline gear
Effects of hook and bait in a tropical northeast Atlantic pelagic longline fishery: Part I – Incidental sea turtle bycatch | Consortium for Wildlife Bycatch Reduction
Coelho, R., Santos, M.N., Fernandez-Carvalho, J., Amorim, S. InstitutoPortuges do Mar e da Atmospfera Experimental studies were conducted over a three year period (August 2008-December 2011) to determine the effects of changing traditional J-hooks baited with squid bait to circle hooks (offset and non offset) with mackerel bait on sea turtle interactions. Studies were carried […]
Fishing by hooks in longliners from the Mexican Pacific Ocean: effects in the catch rate and weight of sharks and other species | Consortium for Wildlife Bycatch Reduction
Galeana-Villasenor, I., Galvan-Magana, F. and Santana-Hernandez, H. Revista de Biologia Marina y Oceanografia The effect of two hook types (J-style and circle) and two bait types (jumbo squid and juvenile striped mullet) were tested on pelagic longlines in the northwest Pacific Ocean to determine their effect on catch rates of pelagic species. There were no […]