|
Chalk Cliffs Rearing Unit
The Chalk Cliffs Rearing Unit is a Colorado Parks and Wildlife cold water fish production facility located near Arkansas River and Chalk Creek in Chaffee County, Colorado. Hatchery staff works to support the raising of approximately 700,000 catchable, ten-inch rainbow trout annually. The hatchery stocks fish along the Front Range from Loveland to the New Mexico border, and east almost to the Kansas border. History Chalk Cliffs was inaugurated in 1950. In 1986, the facility experienced a widespread death among fingerling trout. This was thought to be a result of using creek water. Water quality sampling by the Department of Public Health and the Environment found that the cause was high amounts of zinc and cadmium, from the Mary Murphy Mine upstream. In 1990, Chalk Creek was chosen for cleanup through the Division of Minerals and Geology. This was necessary as the levels were impacting fish habitats and water quality degradation in the Arkansas River. Yet, their clean up attempt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nathrop, Colorado
Nathrop is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Chaffee County, Colorado, United States. The Nathrop post office has the ZIP code 81236. At the United States Census 2010, the population of the 81236 ZIP Code Tabulation Area was 1,017 including adjacent areas. History Nathrop was named for Charles Nachtrieb, owner of the townsite. In 1880, the Denver and Rio Grande Railroad built through Nathrop as part of their Tennessee Pass line. The tracks were placed out of service in 1997, but Union Pacific, present-day owner of the line, may reach an agreement to reopen it. Geography The Nathrop CDP has an area of , all land. Ruby Mountain Ruby Mountain is a rhyolite outcrop located about one mile northeast of Nathrop. Small spessartite garnet crystals are found throughout the outcropping. Small pebbles of black obsidian referred to as "Apache tears" by collectors can also be found in the talus rock at the base of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Parks And Wildlife
Colorado Parks and Wildlife manages the state parks system and the wildlife of the U.S. state of Colorado. , the division managed the 42 state parks and 307 wildlife areas of Colorado. , the Colorado Natural Areas Program had 93 designated sites which protected more than 250 endangered, rare, or threatened species. History *1937 – The state legislature appointed a land board to create the first State Parks Board. *1951 – The State Parks Board leased Cherry Creek recreation area from the Army Corps of Engineers. *1963 – State Parks was merged with the Division of Wildlife. *1971 – The State Recreational Trails Program was created. *1972 – State Parks and the Division of Wildlife were separated. *1977 – State Parks was requested to manage the snowmobile program for the state. *1984 – State Parks became responsible for licensing river outfitters. *1990 – State parks began managing the off-highway vehicle program. *1992 - Voters approved the Great Outdoors Colora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Hatchery
A fish hatchery is a place for artificial breeding, hatching, and rearing through the early life stages of animals—finfish and shellfish in particular.Crespi V., Coche A. (2008) Food and Agriculture Organization of the United Nations (FAO) Glossary of Aquacultur/ref> Hatcheries produce Fish larva, larval and juvenile fish, shellfish, and crustaceans, primarily to support the aquaculture industry where they are transferred to on-growing systems, such as fish farms, to reach harvest size. Some species that are commonly raised in hatcheries include Pacific oysters, shrimp, Indian prawns, salmon, tilapia and scallops. The value of global aquaculture farming is estimated to be US$98.4 billion in 2008 with China significantly dominating the market; however, the value of aquaculture hatchery and nursery production has yet to be estimated. Additional hatchery production for small-scale domestic uses, which is particularly prevalent in South-East Asia or for conservation programmes, ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arkansas River
The Arkansas River is a major tributary of the Mississippi River. It generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's source basin lies in the western United States in Colorado, specifically the Arkansas River Valley. The headwaters derive from the snowpack in the Sawatch and Mosquito mountain ranges. It flows east into the Midwest via Kansas, and finally into the South through Oklahoma and Arkansas. At , it is the sixth-longest river in the United States, the second-longest tributary in the Mississippi–Missouri system, and the 45th longest river in the world. Its origin is in the Rocky Mountains in Lake County, Colorado, near Leadville. In 1859, placer gold discovered in the Leadville area brought thousands seeking to strike it rich, but the easily recovered placer gold was quickly exhausted. The Arkansas River's mouth is at Napoleon, Arkansas, and its drainage basin covers nearly .See wat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaffee County, Colorado
Chaffee County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 19,476. The county seat is Salida. History Chaffee County has a confusing origin. Between February 8 and February 10, 1879, Carbonate County was created by the Colorado legislature out of northern Lake County. On February 10 the two counties were renamed, with the southern part of Lake County becoming Chaffee County, and Carbonate County becoming Lake County. Chaffee County is known as the “Heart of the Rockies”. It was named for Jerome B. Chaffee, Colorado's first United States Senator. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.2%) is water. Adjacent counties * Lake County - north * Park County - northeast * Fremont County - southeast *Saguache County - south *Gunnison County - west *Pitkin County - northwest Major Highways * U.S. Highway 24 * U.S. Highway 50 * U.S. Highway 285 * State High ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainbow Trout
The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coastal rainbow trout or Columbia River redband trout that usually returns to freshwater to spawn after living two to three years in the ocean. Freshwater forms that have been introduced into the Great Lakes and migrate into tributaries to spawn are also called steelhead. Adult freshwater stream rainbow trout average between , while lake-dwelling and anadromous forms may reach . Coloration varies widely based on subspecies, forms, and habitat. Adult fish are distinguished by a broad reddish stripe along the lateral line, from gills to the tail, which is most vivid in breeding males. Wild-caught and hatchery-reared forms of the species have been transplanted and introduced for food or sport in at least 45 countries and every continent except ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fingerling (fish)
Fish go through various life stages between fertilization and adulthood. The life of a fish start as spawned eggs which hatch into immotile larvae. These larval hatchlings are not yet capable of feeding themselves and carry a yolk sac which provides stored nutrition. Before the yolk sac completely disappears, the young fish must mature enough to be able to forage independently. When they have developed to the point where they are capable of feeding by themselves, the fish are called fry. When, in addition, they have developed scales and working fins, the transition to a juvenile fish is complete and it is called a fingerling, so called as they are typically about the size of human fingers. The juvenile stage lasts until the fish is fully grown, sexually mature and interacting with other adult fish. Growth stages Ichthyoplankton ''(planktonic or drifting fish)'' are the eggs and larvae of fish. They are usually found in the sunlit zone of the water column, less than 200 met ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Department Of Public Health And The Environment
Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is the List of U.S. states and territories by area, eighth most extensive and List of U.S. states and territories by population, 21st most populous U.S. state. The 2020 United States Census, 2020 United States census enumerated the population of Colorado at 5,773,714, an increase of 14.80% since the 2010 United States Census, 2010 United States census. The region has been inhabited by Indigenous peoples of the Americas, Native Americans and their Paleo-Indians, ancestors for at least 13,500 years and possibly much longer. The eastern edge of the Rocky Mountains was a major migration route for early peoples who spread throughout the Americas. "''Colorado''" is the Spanish adjective meaning "ruddy", th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
