Paddlefish and Sturgeon Entrainment by Dredges: Swimming Performance as an Indicator of Risk
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چکیده
BACKGROUND: Paddlefish and sturgeons (Acipenseriformes) collectively constitute one of the most imperiled groups of fishes in North America. Populations were over-exploited for meat and caviar in the early 20th century (Tower 1908, Stockard 1908, Saffron 2002) and are impacted today by continued harvesting, habitat degradation, and habitat loss (Williamson 2003). Some instances of entrainment have been documented by observers on coastal dredges, but effects of entrainment on adult fish are presumed low.
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