Fish assemblages on two continents respond to valley‐ and reach‐scale hydrogeomorphic variation: Analyses across three temperate ecoregions. - Pyron, Mark; Maasri, Alain; Costello, John; Kenner, Scott; Otgonganbat, Amarbat; Mendsaikhan, Bud; Chandra, Sudeep; Thorp, James H.; Arsenault, Emily R.; Shields, Robert; Artz, Caleb; Minder, Mario (Ecology of Freshwater Fish, 2025)