Fishways, Fragmentation, and Imperiled Great Plains Fishes
Passages built beside dams to allow trout and salmon to continue moving upstream are common mitigation tools but do these structures work for little fishes too? In a new study published in Canadian Journal of Fisheries and Aquatic Sciences researchers from Kansas State University track the movement of smaller-bodied fishes (<100 mm in length) up and over a dam. By Casey Pennock From Montana down to Texas and Colorado across to Missouri, rivers in the American Great Plains formed roughly…