Submitted by morgaac on August 21, 2010 – 15:44 Spanish mackerel, menhaden, spot Did not reduce catch rates The proportion of hammer-wrapped bonnethead sharks was significantly higher in the 4″ unmodified net
September 2022
Multivariate analysis of behavioral response experiments in humpback whales (Megaptera novaeangliae) | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on May 18, 2016 – 11:57 Humpback whales responded to ‘tones’ by moving offshore and surfacing more often, perhaps trying to avoid the stimuli. Responses to social sounds were more variable. Megaptera novaeangliae (Humpback whale) Acoustic deterrent devices Passive acoustic deterrents
Field Study 736 | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on October 8, 2012 – 08:35 The new “Newhaven” dredge caught significantly more queen scallops than the traditional dredge. There was no significant difference in the abundance of bycatch between the traditional and new “Newhaven” dredge design. Modified ground gear (mobile)
Field Study 793 | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on April 22, 2013 – 09:55 75% of market species were caught during day sets. 75% of bycatch species were caught during day sets, with lancetfish being the most common. Sharks were most common during night sets.
Escapement patterns of red mullet, sole, horse mackerel and hake facing two trawl selective devices | Consortium for Wildlife Bycatch Reduction
Submitted by lweiss on February 13, 2020 – 11:56 Norway lobster (Nephrops norvegicus), demersal fish Horse mackerel and hake escaped through the two devices tested. More sole were caught in the SMBRD than with standard gear. T90 mesh resulted in increased escape of red mullet.
Completion Report for Sturgeon Gillnet Study (number EA 133F-10-RQ-1160) | Consortium for Wildlife Bycatch Reduction
Fox, D., Armstrong J., and Brown, L. Monkfish in the US mid-Atlantic and northeast are targeted through sink gillnets that also capture Atlantic sturgeon. Large-mesh gillnets are required to fish seasonally using tie-downs as part of the Harbor Porpoise Take Reduction Plan. This study looked at the effects of tie-downs (control: 12 meshes x 30.5 cm stretch […]
A simple technical measure to reduce bycatch and discard of skates and sharks in mixed-species bottom-trawl fisheries | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on August 27, 2015 – 15:14 Catch rates for flatfish, haddock and whiting did not differ. Larger anglerfish were caught without the ‘tickler’ in place Removing the ‘tickler’ chain resulted in decreased catches of sharks and skates Modified ground gear (mobile)
Experiment to Evaluate Gear Modification on Rates of Sea Turtle Bycatch in the Swordfish Longline Fishery in the Azores Phase 4 | Consortium for Wildlife Bycatch Reduction
Submitted by admin on November 1, 2007 – 12:00 There was no significant difference in the number of blue sharks caught on non-offset 16/0 and 18/0 circle hooks . Non-offset 16/0 and 18/0 circle hooks caught fewer turtles than Japanese tuna hook. Non-offset 18/0 circle hooks caught fewer turtles than non-offset 16/0 Caretta caretta (Loggerhead […]
Buoyless nets reduce sea turtle bycatch in coastal net fisheries | Consortium for Wildlife Bycatch Reduction
Peckham, S.H., Lucero-Romero, J., Maldonado-Diaz, D., Rodriguez-Sanchez, A., Senko, J., Wojakowski, M. and A. Gaos S. Hoyt Peckham, Center for Ocean Solutions, Stanford University, Pacific Grove, CA, USA. E-mail: [email protected] Loggerhead sea turtles have a high-density foraging hot spot in Baja California Sur, Mexico. This spot coincides with intense bottom-set net fisheries. Controlled studies were […]
Field Study 536 | Consortium for Wildlife Bycatch Reduction
Submitted by morgaac on May 23, 2011 – 09:58 There were no significant differences in catch, catch rate or mean length for bigeye tunas. Survival was significantly higher for bigeye tuna caught on circle vs. Japanese style hooks. Catch rates on circle hooks were significantly lower than on Japanese style and “J” hooks for 16 […]
Field Study | Consortium for Wildlife Bycatch Reduction
Submitted by Kate McClellan on January 17, 2012 – 15:39 Completion Report for Sturgeon Gillnet Study (number EA 133F-10-RQ-1160) Removing tie-downs decreased monkfish landings No effect on Atlantic sturgeon; increased common dolphin bycatch
Optimizing mesh size with escape gaps in a dual-species portunid-trap fishery | Consortium for Wildlife Bycatch Reduction
Submitted by lweiss on February 13, 2020 – 12:55 giant mud crabs (Scylla serrata), blue swimmer crabs (Portunus armatus) 91-mm traps retained significantly fewer (by 42%) undersized P. armatus and A. australis. In the second experiment, fewer undersized S. serrata, P. armatus, and A. australis were retained in all larger meshed traps, and in all […]
Best practice seabird bycatch mitigation for pelagic longline fisheries targeting tuna and related species | Consortium for Wildlife Bycatch Reduction
Melvin EF, Guy TJ, Read, LB Seabird bycatch in the tuna and billfish longline fishery in South African waters has had one of the highest seabird bycatch rates in the world. Research was carried out aboard two Japanese longline vessels in the South African EEZ in 2010. Half of the branch lines on each vessel […]
Performance Assessment of Underwater Setting Chutes, Side-Setting, and Blue-Dyed Bait to Minimize Seabird Mortality in Hawaii Pelagic Longline Tuna and Swordfish Fisheries | Consortium for Wildlife Bycatch Reduction
Gilman, E., N. Brothers, and D. Kobayashi Final Report. U.S. Western Pacific Regional Fishery Management Council, Honolulu Underwater setting chutes, blue-dyed bait, and side-sets each reduced the bycatch of seabirds (Laysan and black-footed albatross and short-tailed shearwater) in the Hawaiian longline tuna and swordfish fisheries. Side-sets showed the most promise for a bycatch mitigation technique […]