A New Way to Study Fish?

Written by: Jessie Melton

River herring, Alosa pseudoharengus and Alosa aestivalis, are an anadromous fish species that migrate from marine waters through estuaries to freshwater nurseries in order to spawn and lay eggs. River herring have historically been a valuable commercial species in fisheries, but the stocks collapsed throughout their native region along the Atlantic Coast since the 1990s. The Potomac Environmental Research and Educational Center (PEREC) has conducted an ongoing study of Gunston Cove for the past three and a half decades, and has incorporated the monitoring of river herring population to aid in determining whether or not the moratorium is beneficial to the decline in river herring abundance.