Greenback Cutthroat Trout Habitat

14052019 Cutthroat trout so-named because of the red pink or orange markings under their mandibles evolved in the Pacific Northwest Rocky Mountains and Great Basin.

Greenback cutthroat trout habitat. Previously it was believed that the species also lived in the Arkansas River drainage but the. These discoveries launched an aggressive conservation campaign that replicated those populations across the landscape so that they could be down-listed from endangered to. Cutthroat trout require cold clear well-oxygenated shallow rivers with gravel bottoms or cold moderately deep lakes.

18072017 More than 50 volunteers from Trout Unlimited and other conservation groups hauled 20-pound packs of the year-old genetically pure greenback cutthroat trout. How you can help. 26042007 The only salmonid native to the South Platte and Arkansas River basins the greenback cutthroat trout was threatened by habitat loss unregulated fishing and invasions by introduced nonnative salmonids by the early 1900s and was thought to be extinct by 1937.

Extensive conservation work expanded their range from 9 populations to several dozen and the trout was honored as the State Fish of Colorado and downgraded to threatened. 12092019 Land uses known to contribute to cutthroat habitat degradation include timber harvest urbanization road development mining and agriculturallivestock production. 18072017 Greenback cutthroats originated in the South Platte River Basin headwaters.

Greenback cutts were considered Endangered until the 1990s. The Greenback Cutthroat Trout Oncorhynchus clarki stomias is a species of cutthroat that once inhabited high alpine streams throughout the South Platte Basin. Forty seven sites are open to catch-and- release fishing and 20 populations are considered to be stable.

Due to a range of human impacts and habitat disturbances the fish is limited to only a handful of small streams and lakes along the Front Range of Colorado. Greenback Cutthroat Trout Habitat Requirements The habitat requirements of GBCT are similar to other cutthroat trout species. GBCT evolved in high elevation streams and in general require water temperatures below 24 degrees C 77 degrees F with adequate flow and shading to maintain pools that provide refuge during low water.

Healthy stream-side vegetation that reduces siltation is typical of healthy cutthroat trout habitat and beaver ponds may provide refuge during periods of. These lacustrine cutthroat spawn in either the inlet or outlet stream of the lake that they inhabit depending on the quality of the habitat. 14082020 According to the latest thinking the original range of the greenback cutthroat trout was limited to the South Platte Basin of eastern Colorado.