Marine Mammal Stock Assessment Reports by Species/Stock
NOAA Fisheries annually prepares marine mammal stock assessment reports for all marine mammals in U.S. waters.
This page provides all marine mammal stock assessment reports by species/stock. We also provide this information as regional stock assessment reports.
Note: Individual reports are only posted when they are revised from a previous year.
Posting of the 508 compliant versions of the older years is in process. If there is a year that you need now, please contact us at (301) 427-8400 or email pr.webmaster@noaa.gov to request it. Provide the species name and year that you need.
Cetaceans - Large Whales
*All documents are in PDF format.
Blue Whale
- Central North Pacific
- Eastern North Pacific
- Western North Atlantic
Bowhead Whale
- Western Arctic
Bryde's Whale
- Eastern Tropical Pacific
- Hawaiʻi
- Northern Gulf of Mexico
Fin Whale
- California-Oregon-Washington
- Hawaiʻi
- Northeast Pacific
- Western North Atlantic
Gray Whale
- Eastern North Pacific
- Western North Pacific Stock
Humpback Whale
As of 2022, North Pacific humpback whale stocks have been redesignated. You can read the rationale for the redesignations here.
- American Samoa
- Reports: 2009
- California-Oregon-Washington
- Central America/Southern Mexico
- Reports: 2022
- Central North Pacific
- Gulf of Maine
- Hawaiʻi
- Reports: 2022
- Mainland Mexico
- Reports: 2022
- Mexico-North Pacific
- Reports: 2022
- Western North Pacific
Minke Whale
- Alaska
- Canadian Eastern Coastal
- California-Oregon-Washington
- Hawaiʻi
Rice's Whale
- Northern Gulf of Mexico Stock
- Reports: 2022
Right Whale, North Pacific
- Eastern North Pacific
Right Whale, North Atlantic
- Western Stock
Sei Whale
- Eastern North Pacific
- Hawaiʻi
- Nova Scotia
- Western North Atlantic
Sperm Whale
- California-Oregon-Washington
- Hawaiʻi
- North Pacific
- North Atlantic
- Northern Gulf of Mexico
- Puerto Rico and U.S. Virgin Islands
- Reports: 2010
Cetaceans - Small Whales
*All documents are in PDF format.
Beaked Whale, Baird's
- Alaska
- California-Oregon-Washington
Beaked Whale, Blainville's
- Hawaiʻi
- Western North Atlantic
- Northern Gulf of Mexico
Beaked Whale, Cuvier's
- Alaska
- California-Oregon-Washington
- Hawaiʻi
- Northern Gulf of Mexico
- Puerto Rico and U.S. Virgin Islands
- Reports: 2011
- Western North Atlantic
Beaked Whale, Gervais'
- Northern Gulf of Mexico
- Western North Atlantic
Beaked Whale, Longman's
Beaked Whale, Mesoplodont
- Western North Atlantic
- California-Oregon-Washington
Beaked Whale, Sowerby's
Beaked Whale, Stejneger's
Beaked Whale, True's
Beluga Whale
- Beaufort Sea
- Bristol Bay
- Cook Inlet
- Eastern Bering Sea
- Eastern Chukchi Sea
Dwarf Sperm Whale
- California-Oregon-Washington
- Hawaiʻi
- Northern Gulf of Mexico
- Western North Atlantic
False Killer Whale
- American Samoa
- Reports: 2010
- Northern Gulf of Mexico
- Hawaiian Islands Stock Complex
- Palmyra Atoll Stock
- Western North Atlantic
Killer Whale
- AT1 Transient
- Eastern North Pacific:
- Alaska Resident
- Northern Resident
- Offshore
- Transient (*currently part of the West Coast Transient stock)
- Southern Resident
- Gulf of Alaska, Aleutian Islands, and Bering Sea Transient
- Hawaiʻi
- Northern Gulf of Mexico
- West Coast Transient
- Western North Atlantic
Melon-Headed Whale
- Hawaiʻi
- Northern Gulf of Mexico
- Western North Atlantic
Narwhal
Northern Bottlenose Whale
Pilot Whale, Long-Finned
- Western North Atlantic
Pilot Whale, Short-Finned
- California-Oregon-Washington
- Hawaiʻi
- Northern Gulf of Mexico
- Puerto Rico and U.S. Virgin Islands
- Reports: 2011
- Western North Atlantic
Pygmy Killer Whale
- Hawaiʻi
- Northern Gulf of Mexico
- Western North Atlantic
Pygmy Sperm Whale
- California-Oregon-Washington
- Hawaiʻi
- Northern Gulf of Mexico
- Western North Atlantic
Cetaceans - Dolphins
*All documents are in PDF format.
Bottlenose Dolphin
- Pacific Bottlenose Dolphin:
- California Coastal
- California-Oregon-Washington Offshore
- Hawaiian Islands Stock Complex (Kauai/Niʻihau, Oʻahu, 4-Islands, Hawaiʻi Island, Hawaiʻi Pelagic)
- Atlantic Bottlenose Dolphin:
- Biscayne Bay
- Charleston Estuarine System
- Florida Bay
- Indian River Lagoon Estuarine System
- Jacksonville Estuarine System
- Northern Georgia/Southern South Carolina Estuarine System
- Northern North Carolina Estuarine System
- Northern South Carolina Estuarine System
- Puerto Rico and U.S. Virgin Islands
- Reports: 2011
- Southern Georgia Estuarine System
- Central Georgia Estuarine System
- Southern North Carolina Estuarine System
- W.N. Atlantic Central Florida Coastal
- W.N. Atlantic Northern Florida Coastal
- W.N. Atlantic Northern Migratory Coastal
- W.N. Atlantic South Carolina-Georgia Coastal
- W.N. Atlantic Southern Migratory Coastal
- W.N. Atlantic Offshore
- Western North Atlantic Coastal (*in 2009, split into multiple stocks)
- Gulf of Mexico Bottlenose Dolphin:
- Northern Gulf of Mexico Bay, Sound, and Estuary Stocks (*note that NOAA Fisheries is in the process of writing individual stock assessment reports for each of the 31 Bay, Sound, and Estuary stocks -- until this effort is completed, some of the information presented in the individual reports will also be included in the Bay, Sound, and Estuarine report)
- Choctawhatchee Bay
- Galveston Bay, East Bay, Trinity Bay Stock
- Reports: 2021
- Terrebonne-Timbalier Bay Estuarine System Stock
- Reports: 2018
- St. Andrew Bay
- Reports: 2019
- St. Joseph Bay
- West Bay
- Reports: 2021
- Barataria Bay Estuarine System
- Mississippi Sound, Lake Borgne, Bay Boudreau Stock
- Northern Gulf of Mexico Continental Shelf
- Gulf of Mexico Eastern Coastal
- Gulf of Mexico Northern Coastal
- Gulf of Mexico Western Coastal
- Northern Gulf of Mexico Oceanic
- Eastern Gulf of Mexico Coastal
- Northern Gulf of Mexico Coastal
- Western Gulf of Mexico Coastal
- Northern Gulf of Mexico Coastal Stocks
Clymene Dolphin
- Northern Gulf of Mexico
- Western North Atlantic
Common Dolphin
- Western North Atlantic
Common Dolphin, Long-Beaked
Common Dolphin, Short-Beaked
- California-Oregon-Washington
- Western North Atlantic
Fraser's Dolphin
- Hawaiʻi
- Northern Gulf of Mexico
- Western North Atlantic
Northern Right Whale Dolphin
Risso's Dolphin
- Hawaiʻi
- California-Oregon-Washington
- Northern Gulf of Mexico
- Western North Atlantic
Rough-Toothed Dolphin
- American Samoa
- Reports: 2010
- Hawaiʻi
- Northern Gulf of Mexico
- Western North Atlantic
Spinner Dolphin
- American Samoa
- Reports: 2010
- Hawaiian Islands Stock Complex
- Northern Gulf of Mexico
- Puerto Rico and U.S. Virgin Islands
- Reports: 2011
- Western North Atlantic
Spotted Dolphin, Atlantic
- Northern Gulf of Mexico
- Puerto Rico and U.S. Virgin Islands
- Reports: 2011
- Western North Atlantic
Spotted Dolphin, Pantropical
- Hawaiʻi
- Northern Gulf of Mexico
- Western North Atlantic
Striped Dolphin
- California-Oregon-Washington
- Hawaiʻi
- Northern Gulf of Mexico
- Western North Atlantic
White-Beaked Dolphin
White-Sided Dolphin, Atlantic
- Western North Atlantic
White-Sided Dolphin, Pacific
- California-Oregon-Washington, Northern, and Southern
- North Pacific
Cetaceans - Porpoises
*All documents are in PDF format.
Dall's Porpoise
- Alaska
- California-Oregon-Washington
Harbor Porpoise
- Bering Sea
- Gulf of Alaska
- Gulf of Maine-Bay of Fundy
- Monterey Bay
- Morro Bay
- Northern California-Southern Oregon
- Northern Oregon-Washington Coast
- San Francisco-Russian River
- Southeast Alaska (As of 2022, the Southeast Alaska stock has been redesignated as three separate stocks: Northern Southeast Alaska Inland Waters, Southern Southeast Alaska Inland Waters, and Yakutat/Southeast Alaska Offshore Waters. Information for these three stocks can be found in Southeast Alaska 2022 SAR. You can read the rationale for the redesignation here.)
- Washington Inland Waters
- Central California
Pinnipeds - Phocids (Earless Seals or True Seals)
*All documents are in PDF format.
Bearded Seal
- Beringia Stock
Gray Seal
- Western North Atlantic
Harbor Seal
- Alaska stocks
- California
- Oregon-Washington Coastal
- Washington Inland
- Western North Atlantic
- Bering Sea
- Gulf of Alaska
- Southeast Alaska
Harp Seal
- Western North Atlantic
Hawaiian Monk Seal
- Hawaiʻi
Hooded Seal
Northern Elephant Seal
Ribbon Seal
Ringed Seal
- Arctic Stock
Spotted Seal
Pinnipeds - Otariids (Eared Seals or Fur Seals and Sea Lions)
*All documents are in PDF format.
Guadalupe Fur Seal
Northern Fur Seal
- California
- Eastern Pacific
- San Miguel Island (*in 2013, combined into California stock report )
California Sea Lion
Steller Sea Lion
- Eastern
- Western