Unsupported Browser Detected

Internet Explorer lacks support for the features of this website. For the best experience, please use a modern browser such as Chrome, Firefox, or Edge.

Incidental Take Authorization: Marine Geophysical Survey in the Gulf of Alaska


Marine Mammal Protection Act
Action Status
Affected Species
Baird’s Beaked Whale
Blue Whale
California Sea Lion
Cuvier's Beaked Whale
Dall’s Porpoise
Fin Whale
Gray Whale
Harbor Porpoise
Harbor Seal
Humpback Whale
Killer Whale
Minke Whale
Northern Elephant Seal
Northern Fur Seal
Pacific White-Sided Dolphin
Risso’s Dolphin
Sei Whale
Sperm Whale
Stejneger's Beaked Whale
Steller Sea Lion


NOAA Fisheries has issued an incidental harassment authorization (IHA) to Lamont-Doherty Earth Observatory of Columbia University (L-DEO) to incidentally harass, by Level A and Level B harassment, marine mammals during seismic airgun activities associated with a marine geophysical survey in the Gulf of Alaska.

NSF GoA map.png

Map of Project Area

Last updated by Alaska Fisheries Science Center on 04/29/2021