American River Chinook Salmon. CA DFG photo by Matt Elyash

Building fish passages is an arcane art, enlightened on occasion by scientific research. So many fish passages out there just don’t work, wasting time and money, and dooming fish populations.

If you need to direct a fish passage project, make sure you are up on the latest research. Check out the database of fish passage research from the University of Massachusetts at Amherst.

Find the database here.
Read the press release, from the California Department of Fish and Game, here.