Artificial lakes
The Stanislaus River is a tributary of the San Joaquin River in north-central California in the United States. The main stem of the river is 96 miles (154 km) long, and when measured to its furthest headwaters, it is about 150 miles (240 km) long.
At least 36 fish species are known to exist in the lower Stanislaus River, including both native species such as salmon, steelhead/rainbow trout, Pacific lamprey, hardhead, and Sacramento pikeminnow, as well as introduced species such as carp, sunfish, and bass.
The Stanislaus River provides habitat for native anadromous fish, particularly Chinook (king) salmon and steelhead, which spend their adult lives in the ocean but must return to fresh water to spawn. In its natural state, the Stanislaus had a major spawning run in the late spring (April–June) and smaller runs in the fall and winter.
