Fish distribution patterns in the streams tributary to Clear Lake, Lake County, California were investigated by electroshocking 120 block netted 30.5 meter sections during the summer and fall of 1975. Eleven species of fish occurred in the seven separate drainages. Five of these species occurred in enough abundance to warrant statistical testing. Results of a correlation analysis are discussed and related to environmental and seasonal variables that when ignored give misleading information about the ecology of the species present. Species distribution patterns show that species addition occurs proceeding downstream. Three distinct zones are visible, the Trout Zone, Trout-roach Zone and Cyprinid-catostomid Zone.
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