The following list of known freshwater fish species, subspecies, and hybrids occurring in the U.S. state of Idaho is taken from Wydoski and Whitney (2003). Some scientific names have been updated or corrected. Asterisks denote introduced fishes. The list includes several anadromous species.
A game fish is any species of fish pursued for sport by recreationalists (anglers). The capture of game fish is usually tightly regulated. In comparison, nongame fish are all fish not considered game fish. Game fish may be eaten after being caught, though increasingly anglers are practicing catch-and-release tactics to improve fish populations.
The Whitefish River is a 24.8-mile-long (39.9 km) southward-flowing stream originating at the outlet of Whitefish Lake. The river is a tributary of the Stillwater River just before it reaches the Flathead River in Flathead County, in the U.S. state of Montana. The Whitefish River is part of the Columbia River basin, as the Flathead River is a tributary of Clark Fork, which is a tributary to the Pend Oreille River, which is a tributary to the Columbia River.
Acanthocephalus dirus is a species of parasitic worm in the Echinorhynchidae family. Instead of having its eggs expelled from the host in feces, the gravid female detaches itself from the host's digestive tract and sinks to the bottom, where her body is consumed by the species' intermediate host, Caecidotea intermedius, a species of isopod. Upon hatching, the larvae begin to alter their host's behavior. This will manifest in lighter pigmentation and an increased attraction to predators, such as A. dirus' primary hosts.
Whitefish Lake ; is a natural oligotrophic freshwater lake in Flathead County, Montana, United States.
Fishing in Colorado has brought in a large amount of revenue for the state. In 2019 Colorado Parks and Wildlife estimated outdoor recreation contributed roughly 62 billion dollars to the state economy. Fishing was reported to be the 5th most popular outdoor activity and 110, 511 fishing and hunting combination licenses were sold. Ice fishing makes up part of this total fishing revenue and is a common annual sport for Colorado residents and out-of-state visitors. There is no legal definition of ice fishing season. Rather, people begin to ice fish once the lakes freeze over with thick enough ice. Colorado Parks and Wildlife also recommend that people always ice-fish with another person. Typically, this starts in December and ends in April for Colorado. Lakes size, depth, elevation, and seasonal weather can cause variance to the season. Once the lakes freeze over with thick enough ice, anglers go out onto the ice, drill holes through the ice, and fish for a variety of species.
Oregon & Northern California Coastal is a freshwater ecoregion in western North America. It includes the coastal rivers of Oregon and Northern California, from the Columbia River mouth in northwestern Oregon to northern Monterey Bay in Central California. It includes the Umpqua, Rogue, Smith River, Klamath, Mad, Eel, and lower Russian rivers, and many smaller coastal rivers and streams, including those on the coast side of the Marin and San Francisco peninsulas.