The following list of freshwater fish species and subspecies known to occur in the U.S. state of Oregon is primarily taken from "Inland Fishes of Washington" by Richard S. Wydoski and Richard R. Whitney (2003), but some species and subspecies have been added from the Oregon Department of Fish and Wildlife (ODFW) website. Some scientific names have been updated or corrected. Asterisks denote introduced fishes. 108 species and subspecies are listed, 33 of them introduced. The list includes several anadromous species, and seven normally marine species–starry flounder, staghorn sculpin, saddleback gunnel, Pacific herring, topsmelt, surf smelt, and shiner perch–that are occasionally found in fresh water.
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 tributary to the Pend Oreille River, which is tributary to the Columbia River.
Cottus asper is a species of fish in the sculpin family known by the common name prickly sculpin. It is native to the river drainages of the Pacific Slope of North America from Seward, Alaska south to the Ventura River of Southern California. It extends east of the Continental Divide in the Peace River of British Columbia. It has also been introduced to several reservoirs in Southern California.
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.