Atlantic sturgeon

:  a sturgeon (Acipenser oxyrinchus) occurring along the Atlantic coast of North America that is bluish-black or olive-brown above with a white belly and a long, V-shaped snout The Atlantic sturgeon, an almost reptilian creature that can reach 12 feet and weigh 800 pounds, was once caught in the [Hudson] river in such large numbers that it was nicknamed “Albany beef.” — Robert Worth, New York Times, 20 May 2001 ◆The Atlantic sturgeon ascends large rivers to spawn but spends most of its life in relatively shallow, coastal waters of the Atlantic Ocean.