New England |
Traps |
Weak links/ropes |
Large Cetaceans (maximum length > 7.5 meters) |
Indeterminate given rarity of encounters |
Lobster, Whelk, Black Sea Bass |
None |
Field study in the wild |
Development and Evaluation of Reduced Breaking Strength Rope to Reduce Large Whale Entanglement Severity |
|
US Atlantic |
|
|
Large Cetaceans (maximum length > 7.5 meters) |
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%. |
N/A |
N/A |
Summary study |
Drag from fishing gear entangling North Atlantic right whales |
|
Northwest Atlantic |
Traps |
|
Large Cetaceans (maximum length > 7.5 meters) |
N/A |
N/A |
N/A |
Summary study |
Fishing gear involved in entanglements of right and humpback whales |
|
Northwest Atlantic |
Traps |
Sub-surface bait setting |
Large Cetaceans (maximum length > 7.5 meters) |
N/A |
Lobster |
N/A |
Summary study |
Review of sinking groundline performance in the Maine lobster fishery, with recommendations for improving its fishability |
|
Northwest Atlantic |
Traps |
At-call pop-up buoys |
Large Cetaceans (maximum length > 7.5 meters) |
Not tested |
Lobster |
Not tested |
Study in the lab |
Acoustically triggered buoyless lobster trap recovery system |
|
Northwest Atlantic |
Non-specific |
Weak links/ropes |
Large Cetaceans (maximum length > 7.5 meters) |
N/A |
N/A |
N/A |
Summary study |
2008 Supplement to the large whale gear research summary |
|
Northwest Atlantic |
Non-specific |
Weak links/ropes |
Large Cetaceans (maximum length > 7.5 meters) |
N/A |
N/A |
N/A |
Summary study |
2006 Supplement to the large whale gear research summary |
|
Northwest Atlantic |
Traps |
Quick-release gear, Weak links/ropes |
Large Cetaceans (maximum length > 7.5 meters) |
n/a |
n/a |
n/a |
Summary study |
2003 Supplement to the large whale gear research summary |
|
Northwest Atlantic |
Traps |
Buoy lines with reduced breaking strength, Quick-release gear, Weak links/ropes |
Large Cetaceans (maximum length > 7.5 meters) |
N/A |
N/A |
N/A |
Summary study |
Large whale gear research summary |
|
|
Gillnets |
Acoustic deterrent devices, Passive acoustic deterrents |
Large Cetaceans (maximum length > 7.5 meters), Small Cetaceans (maximum length < 7.5 meters) |
Net alarms do not appear ver effective in reducing small cetacean entanglements in gillnets |
N/A |
N/A |
Summary study |
Acoustic methods of reducing or eliminating marine mammal-fishery interactions: do they work? |
|
Atlantic and Indian Oceans |
Surrounding nets |
|
Large Cetaceans (maximum length > 7.5 meters), Small Cetaceans (maximum length < 7.5 meters) |
n/a |
N/A |
N/A |
Summary study |
Cetaceans and tuna purse seine fisheries in the Atlantic and Indian Oceans: interactions but few mortalitites |
|
Worldwide and Iceland |
|
|
Large Cetaceans (maximum length > 7.5 meters), Phocoena phocoena (Harbor porpoise), Demochelys coriacea (Leatherback sea turtle) |
n/a |
n/a |
n/a |
Study in the lab |
Marine animal entanglements in mussel aquaculture gear: Documented cases from mussel farming regions of the world including first-hand accounts from Iceland |
|
New South Wales, Australia |
Traps |
|
Large Cetaceans (maximum length > 7.5 meters), Small Cetaceans (maximum length < 7.5 meters) |
n/a |
n/a |
n/a |
Summary study |
Long-term trends in cetacean incidents in New South Wales, Australia |
|
Hauruki Gulf, New Zealand |
|
|
Large Cetaceans (maximum length > 7.5 meters) |
N/A |
N/A |
N/A |
Summary study |
Mitigation of vessel-strike mortality of endangered Bryde's whales in the Hauraki Gulf, New Zealand |
|
Oregon |
|
Acoustic deterrent devices |
Large Cetaceans (maximum length > 7.5 meters) |
Inconclusive |
N/A |
N/A |
Field study in the wild |
Testing the effectiveness of an acoustic deterrent for gray whales along the Oregon Coast |
|
South Georgia |
Hooks-and-Lines |
|
Large Cetaceans (maximum length > 7.5 meters), Physeter macrocephalus (Sperm whale), Pinnipeds |
Sperm whales interacted with longlines 25% of the time; orcas interacted only 5% of the time could remove half of the catch; fur seal interactions have declined since 2009 |
Patagonian toothfish |
Catch rates were lower when marine mammals were present |
Field study in the wild |
The impact of predation by marine mammals on Patagonian toothfish longline fisheries |
|
Review |
Gillnets |
Low profile gillnet |
Large Cetaceans (maximum length > 7.5 meters), Small Cetaceans (maximum length < 7.5 meters), Pinnipeds, Seabirds, Sea Turtles |
|
|
|
Summary study |
Reducing bycatch in gillnets: A sensory ecology perspective |
|
Peru |
Hooks-and-Lines |
|
Large Cetaceans (maximum length > 7.5 meters), Megaptera novaeangliae (Humpback whale) |
None tested |
Various |
None tested |
Summary study |
Entanglements of large cetaceans in Peru: few records by high risk |
|
Peru |
Gillnets |
|
Large Cetaceans (maximum length > 7.5 meters), Megaptera novaeangliae (Humpback whale) |
None tested |
Various |
None tested |
Summary study |
Entanglements of large cetaceans in Peru: few records by high risk |
|
|
Non-specific |
|
Large Cetaceans (maximum length > 7.5 meters), Small Cetaceans (maximum length < 7.5 meters) |
Gillnets posed the most risk to cetaceans |
n/a |
n/a |
Summary study |
A risk-based approach to rapidly screen vulnerability of cetaceans to impacts from fisheries bycatch |
|
Brazil |
|
|
Large Cetaceans (maximum length > 7.5 meters), Megaptera novaeangliae (Humpback whale), Small Cetaceans (maximum length < 7.5 meters) |
n/a |
n/a |
n/a |
Field study in the wild |
Accidents between artisanal fisheries and cetaceans on the Brazilian coast and Central Amazon: proposals for integrated management |
|
Mingan Archipelago, Gulf of St. Lawrence, Quebec, Canada |
Non-specific |
|
Large Cetaceans (maximum length > 7.5 meters) |
Decreased feeding ability of balenopterid whales |
Unknown but likely crab and whelk |
Not applicable |
Field study in the wild |
Decreased feeding ability of a minke whale (Balaenoptera acutorostrata) with entanglement-like injuries |
|
Alaska |
|
Acoustic deterrent devices |
Large Cetaceans (maximum length > 7.5 meters) |
Excluded whales |
Salmon |
|
Field study in the wild |
Killer whale, Orcinus orca, sound repel white whales, Delphinapterus leucas |
|
California |
|
Acoustic deterrent devices |
Large Cetaceans (maximum length > 7.5 meters) |
Whales left area |
Sablefish |
|
Field study in the wild |
Gray whales, Eschrichtius robustus, avoid the underwater sounds of killer whales, Orcinus orca. |
|
Alaska |
Hooks-and-Lines |
Acoustic deterrent devices |
Large Cetaceans (maximum length > 7.5 meters) |
Did not deter killer whales |
Sablefish |
|
Field study in the wild |
The Killer Whales of Prince William Sound. Prince William Sound Books, Valdez, AK. |
|
Alaska |
Hooks-and-Lines |
Acoustic deterrent devices |
Large Cetaceans (maximum length > 7.5 meters) |
Did not deter killer whales |
Sablefish |
|
Field study in the wild |
Killer whale (Orcinus orca) depredation on longline catches of sablefish (Anoplopoma fimbria) in Alaskan waters |
|