Website Feedback Button
Fish and Game Home

Alaska Department of Fish and Game


Secondary Site Navigation



Editor:
Riley Woodford

1255 West 8th St.
Juneau, AK 99801
(907) 465-4256

Questions or comments:
Wildlife News Info

To subscribe contact:
AWN Subscriptions

To unsubscribe:
Unsubscribe


Alaska Fish & Wildlife News
February 2005

Sea Lion Marks Reveal Birthplace
Nine Rookeries Indicated by Letter

By Riley Woodford
photo

About 3,600 Steller sea lions in Alaska have been marked with a letter and number combination over the past ten years, enabling biologists to identify individual animals. The letter indicates the rookery where the pup was born. For example, F551 is a male sea lion, born in June 1994 and marked as a pup at his birthplace, Forrester Island. He has been seen repeatedly at a haulout on the outer coast of Chichagof Island, and has been sighted as far west as Marmot Island, near Kodiak.

Below is a list of the letter codes identifying sea lions’ birthplaces.

Southeast Alaska (Eastern stock)
F – Forrester Island complex, west of Dall Island, near the U.S.-Canada border
V – Graves Rock, near Cape Spencer
W – White Sisters, near White Sulphur Hot Springs (Chichagof Island)
H – Hazy Island, near the entrance to Chatham Strait

Western Alaska (Western stock)
X – Sugarloaf Island, between Kodiak Island and the Kenai Peninsula
T – Marmot Island, northeast of Kodiak Island
J – Seal Rocks, just outside Prince William Sound
E – Fish Island, just outside Prince William Sound
A – Ugamak Island, in the Eastern Aleutians

= (equal sign) In addition, biologists have captured and released about 375 juvenile sea lions from both the eastern and western stocks to collect genetic and physiological data. Some of these animals have been equipped with tracking and data collection instruments. Because their natal rookeries are unknown, these animals are given a number preceded by an equal sign.

Biologists in the Pacific Northwest are also marking Steller sea lions at several sites along the Oregon and Washington coasts. Russian scientists are marking animals at various sites on the Kamchatka Peninsula and on the Commander Islands, which are between the Western Aleutians and the Kamchatka Peninsula. These are marked with Cyrillic (Russian) letters.


Subscribe to Fish and Wildlife News to receive a monthly notice about the new issue and the articles.

Please take a moment to help us improve your experience at the ADF&G website.
How did you arrive at our website?
Why did you visit our website today?
Did you find what you were looking for?
How easy or hard was it to find?
Very Easy Very Hard
Please provide any other comments or suggestions about your experience on the ADF&G website.

Having Trouble with this form?