These trout are found throughout the Pacific regions of North America, and in fact there are over a dozen sub-species known to have existed during the twentieth century. In the mid-1800s when settlers first began arriving at Lake Tahoe, the water was teaming with native cutthroat. Due to their high digestibility, and protein and lipid content, spawning cutthroat trout are one of the highest sources of net digestible energy for grizzly bears in the Yellowstone ecosystem. Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) are the most widespread native trout in the park and were the dominant fish species here prior to Euroamerican settlement.They are an important species in Yellowstone National Park, upon which many other species depend. Welcome to the Trout Predator Online Fly Fishing Forum. Bonneville cutthroat trout (BCT) are native to streams that terminate in the Bonneville Basin, excluding the Bear River. As residents of ancient Lake Lahontan, these cutthroat evolved into predators highly trained on capturing the native forage fish. The Bonneville cutthroat trout (Oncorhynchus clarkii utah) is a subspecies of cutthroat trout native to tributaries of the Great Salt Lake, U.S.A. Trappers Lake historically was home to Colorado’s premier wild Colorado River cutthroat trout fishery. SIZE: Lahontan cutthroat trout can grow up to 4 feet long (122cm) and weigh up to 40 lbs. Coastal cutthroat trout (Oncorhynchus clarkii clarkii) are native trout subspecies found in the coastal streams of North America from the Eel River in northern California to south central Alaska. Juvenile cutthroat trout were highly vulnerable to predation, and lake trout preyed on cutthroat trout that averaged 27–33% of their body length. Bonneville cutthroat trout (BCT) are native to streams that terminate in the Bonneville Basin, excluding the Bear River. streamworks. So the lake trout have no natural predators in the park’s ecosystem, and can potentially live to their 30s and 40s in Yellowstone Lake if they are not removed by netting. Though their coloration can range from golden to gray to green on the back, depending on subspecies and habitat, all populations feature distinctive red, pink, or orange marks on the underside of the lower jaw; usually the easiest diagnostic of the species for the casual observer. This is one of 14 or so recognized subspecies of cutthroat trout native to the western United States. The tui chub was likely the most abundant of these forage fish on Lake Lahontan, and is today the most abundant fish in Pyramid Lake. They occupy small coastal streams, rivers, and lakes and are closely associated with the temperate rain forests of the Pacific Northwest. Unfortunately, a variety of factors have served to suppress the current population as well as marginalize the value of the fishery due to introgression with Yellowstone cutthroat trout. Tend to be larger, with a squared tail to chase prey and avoid predators. Cutthroat trout (Oncorhynchus clarki) have long been a staple of the sport fishing community, especially among fly fishers. They’re the subject of massive conservation efforts, with restoration work happening from Soda Butte Creek in Yellowstone to tiny headwater streams in Colorado. Westslope Cutthroat Trout is a trout with small, non-rounded spots, with few spots on the anterior body below the lateral line.