Shortnose sturgeon were once numerous in the Connecticut River watershed, before widespread habitat loss and the construction of large dams. (Cody Meshes, U.S. Fish And Wildlife Service via ...

A researcher holds an endangered shortnose sturgeon caught in a net in the Saco River in April in Biddeford, Maine. Sturgeon had been disappearing because of humans’ craving for their eggs ...

GREENFIELD — For decades, it was assumed the federally endangered shortnose sturgeon did not live upstream of the Turners Falls dam on the Connecticut River, although two confirmed sightings in ...

While 19 distinct populations of shortnose sturgeon have been identified in coastal rivers, only two southern populations are thought to be viable. The Ogeechee population has fewer than 500 fish.

The shortnose sturgeon also shows signs of bouncing back. In Maine, scientists have captured about 75 this decade on the Saco River, where they were previously never seen.

Atlantic and shortnose sturgeon supported a "thriving and profitable fishery for caviar, smoked meat, and oil" in the mid-1800s, according to the NOAA. Towards the end of the century, sturgeons ...

For decades, experts had thought the shortnose sturgeon ? a primitive, bottom-dwelling fish? had vanished from the Chesapeake Bay?s rivers. But when a pregnant female fish turned up in the Potomac ...

The Connecticut River is home to an ancient denizen of the deep, the shortnose sturgeon. The fish is a kind of living fossil, perhaps one of the oldest animals. Some scientists think sturgeon date ...

Shortnose sturgeon have not been seen in the Potomac since 2007, according to fish biologist Mike Mangold of the U.S. Fish and Wildlife Service.

Shortnose sturgeon are known to live to 67 years, growing to 4 feet long and weighing 18 pounds. They were also the first species listed as endangered when the 1973 Endangered Species Act was passed.

His decades as principal investigator for Connecticut River shortnose sturgeon research at Conte Lab ultimately led to his lead authorship of “Life History and Behaviour of the Connecticut River ...