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Eventually a new lock was needed at Bonneville; this new structure was built on the Oregon shore, opening to ship and barge traffic in 1993. The old lock is still present, but it is no longer used. The largest fish hatchery in Oregon, called Bonneville Fish Hatchery, is located next to Bonneville Dam.
Bonneville cutthroats are descended from cutthroat trout that once inhabited the Late Pleistocene-aged Lake Bonneville of Utah, eastern Nevada, and southern Idaho.Since the desiccation of Lake Bonneville into the Great Salt Lake, which is too salty for any life other than brine shrimp, Bonneville cutthroats have been isolated in smaller populations such as the headwaters of mountain creeks ...
Another fish—once foreign to the Columbia—accounted for the great silvery flood: the American shad. American Shad made their way to the Columbia after 1871 when Seth Green planted some fry in the Sacramento River, California. By 1938, when Bonneville Dam was completed and counts at the fishways were first tallied, only 5,000 were counted.
In recent years, shad counts at Bonneville and The Dalles Dams have ranged from over two million to over five million fish per year. Spawning shad returned to Columbia in May and June and migrated above Lower Granite Dam on the Snake River and above Priest Rapids Dam on the Upper Columbia.
Because of its lack of fish ladders, Chief Joseph Dam completely blocks salmon migration to the upper Columbia River system. Construction began in 1950, with the main dam and intake structure completed in 1955. Installation of the initial generating units was started in 1958 and completed in 1961.
The Bear Lake whitefish, Prosopium abyssicola, is a salmonid fish endemic to Bear Lake on the Utah-Idaho border. It is one of three species of Prosopium endemic to Bear Lake, the other two being the Bonneville whitefish and the Bonneville cisco. The species is listed as a Wildlife Species of Concern by the Utah Division of Wildlife Resources.
Bonneville cutthroat trout, a subspecies of cutthroat trout; Bonneville shootingstar, a species of flowering perennial plant in the primrose family; Bonneville whitefish, a salmonid fish; Bonneville skipper, a subspecies of Ochlodes sylvanoides, a butterfly of the family Hesperiidae
The Bonneville whitefish (Prosopium spilonotus) is a salmonid fish endemic to Bear Lake on the Utah-Idaho border. It is one of three species of Prosopium endemic to Bear Lake, the other two being the Bear Lake whitefish and the Bonneville cisco. The species is listed as a Wildlife Species of Concern by the Utah Division of Wildlife Resources.