acid rain actinopterygii animal appalachian mountains arctic char artificial fly aurora trout binomial nomenclature biological classification brooke trout brown trout bull trout california canada catch and release conservation status crustacean cuddebackville dam dolly varden trout dorsal fin fish fishbase fish migration fishing fly fishing freshwater frog game fish georgian bay great lakes groundwater hudson bay inch infertility insect integrated taxonomic information system introduced species invasive species iowa john treadwell nichols lacustrine lake superior lake trout lamprey latin michigan mississippi river new hampshire new jersey new york north america north carolina ontario overfishing ph pennsylvania perch percidae perciformes rainbow trout recruitment saint lawrence river salmo salmonidae salvelinus sea lamprey seabird smallmouth bass species splake stream bed tiger trout trout trout unlimited virginia vole west virginia