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The Bitterroot River is a northward flowing 84-mile (135 km) river running through the Bitterroot Valley, from the confluence of its West and East forks near Conner in southern Ravalli County to its confluence with the Clark Fork River near Missoula in Missoula County, in western Montana. The Clark Fork River is tributary to the Columbia River and ultimately, the Pacific Ocean. The Bitterroot River is a Blue Ribbon trout fishery with a healthy population of native westslope cutthroat trout and bull trout. It is the third most fly fished river in Montana behind the Madison and Big Horn Rivers.
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.
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.
References
- Behnke, Robert J.; Tomelleri,Joe; Proebstel, Donald S. (2002). Trout and Salmon of North America. Free Press. ISBN 978-0-7432-2220-4.
- Wydoski, Richard S.; Whitney, Richard R. (2003). Inland Fishes of Washington (2nd ed.). University of Washington Press. ISBN 978-0-295-98338-7.