From Trout Unlimited: Monitoring fish movement is a vital conservation tool

Important new research comparing methods of assessing fish movement through culverts….

https://www.tu.org/blog/monitoring-fish-movement-is-a-vital-conservation-tool/

Doug Peterson, a biologist at the Fish and Wildlife Service, and Helen Neville, Trout Unlimited’s Senior Scientist, aim to provide this much-needed guidance in a recent paper in the North American Journal of Fisheries Management.

In a field study across four streams in Montana and Idaho, commissioned by the U.S. Forest Service’s Aquatic Organism Passage Program, Peterson and Neville compared the relative performance and cost of four different approaches to verifying upstream fish passage of native cutthroat and non-native brook trout through recently remediated culverts.