Scientists use satellites, underwater robot to study Atlantic sturgeon migrations
Monday, May 6, 2013 - 08:00
in Paleontology & Archaeology
(Phys.org) —More than a century ago, an estimated 180,000 female Atlantic sturgeon arrived from the coast in the spring to spawn in the Delaware River and fishermen sought their caviar as a lucrative export to Europe. Overfishing contributed to steep population declines, however, and today numbers have dwindled to fewer than 300 adults.