The Search for Alewives

The USGS science crew (GLSC; Ann Arbor, Michigan) aboard the Research Vessel Arcticus (GLSC; Cheboygan, Michigan) with a haul of invasive alewives (Alosa pseudoharengus) collected during a spring bottom trawl survey on Lake Michigan. This survey provides information on seasonal differences in prey fish habitat use and offers critical insight to support fisheries-management decisions. Photo Credit: Jacob Gapczynski, USGS-GLSC.