The Chesapeake Bay's famous blue crabs -- feisty crustaceans that are both a regional symbol and a multimillion-dollar catch -- are hovering at historically low population levels, scientists say, as pollution, climate change and overfishing threaten the bay's ultimate survivor. -
Despite Rescue Effort, Bay Crabs at an Ebb
The Chesapeake Bay's famous blue crabs -- feisty crustaceans that are both a regional symbol and a multimillion-dollar catch -- are hovering at historically low population levels, scientists say, as pollution, climate change and overfishing threaten the bay's ultimate survivor.-
By David A. Fahrenthold