Alaska’s fin whale reports concentrate along the Kenai Peninsula, with more logged in the Matanuska-Susitna and Anchorage areas and around Kodiak Island, and only single records from the Aleutians and the North Slope’s Arctic coast. Only California logs more fin whale records than Alaska, and the state’s reports track the cold, prey-rich water the species follows rather than any single coastline.
At 85 to 89 feet long, a fin whale trails only the blue whale as the largest animal alive, and the waters around Kodiak and Kenai Fjords give it plenty to eat. It lunges through swarms of krill and dense schools of herring and capelin, engulfing huge mouthfuls of water and straining prey through its baleen. The pale-and-dark asymmetry on its lower jaw is the surest way to confirm an identification when the animal surfaces.
Records climb through spring and peak in May, then taper off through the rest of the year, a pattern that likely reflects when observers and whale-watching boats are out searching more than any real shift in whale activity. A fin whale following cold water probably stays present through Alaska’s quieter months too.
Full species profile
