Studying Atlantic sturgeon migrations

www.sciencedaily.com, 08 May 2013 15:30

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. Researchers at the University of Delaware and Delaware State University are using satellites, acoustic transmitters, an underwater robot and historical records to pinpoint the ocean conditions that the fish prefer during migrations -- and potentially help fishermen avoid spots where they might unintentionally catch this endangered species.

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