Search The Database
| Location | Gear | Catch | Technique | Bycatch species | Type | Results |
|---|---|---|---|---|---|---|
Hawaii |
Hooks-and-Lines
|
Swordfish |
Night sets
|
Seabirds | Field study in the wild | Night sets reduce bycatch of seabirds in the Hawaiian swordfish longline fishery. |
Mediterranean Sea |
Trawls
|
Bigeye tuna |
Excluder devices
|
Bony Fishes | Field study in the wild | Sorting grids were found to reduce bycatch of juvenile hake (Merluccius merluccius) in demersal trawl fishery in the western Mediterranean Sea. |
Washington State |
Gillnets
|
Salmon | Seabirds | Field study in the wild | Opaque mesh netting placed strategically on gillnets decreased bycatch of rhinoceros auklet (Cerorhinca monocerata) and common mure (Uria aalge) seabirds but also decreased catch of target salmon species in the Puget Sound, USA. |
|
Gulf of Maine |
Traps
|
Lobster |
At-call pop-up buoys
|
Eubalaena glacialis (NA Right whale) | Field study in the wild | An acoustic release system for offshore lobster buoy lines was successfully developed and tested for reducing right whale (Eubalanea glacialis) entanglements with vertical lines in the Gulf of Maine and southern New England lobster pot fishery. Gear successfully developed and tested for feasbility |
Gulf of Maine |
Gillnets
|
n/a |
Acoustic deterrent devices
|
Small Cetaceans (maximum length < 7.5 meters), Phocoena phocoena (Harbor porpoise) | Field study in the wild | Gillnets equipped with acoustic pingers caught only one harbor porpoise (Phocoena phocoena) compared to 42 caught in control nets off of New Hampshire, USA. Alarms sounds are above groundfish hearing and are not expected to affect fish catch. |
Scotland |
Trout |
Passive acoustic deterrents
|
Small Cetaceans (maximum length < 7.5 meters) | Field study in the wild | Passive acoustic deterrents increased avoidance actions of bottlenose dolphins (Tursiops truncatus) to barriers simulating surface-set gillnets in the Moray Firth, Scotland. |
|
Hawaii |
Hooks-and-Lines
|
Swordfish and tuna |
Side sets
|
Seabirds | Field study in the wild | Side-setting in combination with a bird curtain resulted in the lowest seabird-- Black-footed albatross (Phoebastria nigripes) and Laysan albatross (Phoebastria immutabilis)--capture rate when placed on pelagic longline gear for tuna and swordfish in Hawaiian waters when compared to underwater setting chutes and blue-dyed bait. Resulted in lowest capture rate when used with bird curtain |
Hawaii |
Hooks-and-Lines
|
Swordfish and tuna |
Bird curtain
|
Seabirds | Field study in the wild | Side-setting in combination with a bird curtain resulted in the lowest seabird-- Black-footed albatross (Phoebastria nigripes) and Laysan albatross (Phoebastria immutabilis)--capture rate when placed on pelagic longline gear for tuna and swordfish in Hawaiian waters when compared to underwater setting chutes and blue-dyed bait. Resulted in lowest capture rate when used with side-setting |
North Pacific |
Hooks-and-Lines
|
Swordfish |
Side sets
|
Seabirds | Field study in the wild | Side-setting of longline fishing gear in the western North Pacific deterred seabirds-- Black-footed albatross (Phoebastria nigripes) and Laysan albatross Phoebastria immutabilis)?from taking bait and improved the sinking rate of baited hooks. Deterred seabirds from taking bait |
Chesapeake Bay |
Multiple species |
Alternative leader design
|
Caretta caretta (Loggerhead turtle) | Field study in the wild | An alternative leader design reduced loggerhead (Caretta caretta) sea turtle interactions in a Chesapeake Bay pound net fishery for finfish. There was no change in catch of weakfish (Cynoscion regalis), croaker (Micropogonias undulates), and harvestfish (Peprilus alepidotus). |