Seeking the loneliest whale

Researchers Bruce Mate (right) and Al Goudy prepare to tag a blue whale off Costa Rica.

Researchers Bruce Mate (right) and Al Goudy prepare to tag a blue whale off Costa Rica.

Minden Pictures, MasterFile

An enigmatic whale roams the North Pacific, and next year Bruce Mate will lead a monthlong expedition to find it. Mate, director of Oregon State University’s Marine Mammal Institute in Newport, is no revenge-obsessed Captain Ahab. And the object of the quest is no ferocious leviathan: It is probably one of the generally meek baleen whales that prey on creatures close to the base of the food chain.