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ABSTRACT <br />Status of the native fish fauna of California. Peter B. Moyle, <br />Jack E. Williams, and Eric D. Wikramanayake. Department of <br />Wildlife and Fisheries Biology, University of California, Davis, <br />Davis CA 95616. The native fishes of California can be placed, <br />conservatively, into 115 taxa. 67% of these taxa are endemic to <br />the state. Of the 115 taxa, 4 (3%) are extinct and 16 (14X) are <br />formally recognized by state and/or federal agencies as <br />threatened or endangered. Our analysis of the remaining taxa <br />indicates that 4 need immediate recognition as threatened or <br />endangered. Another 21 taxa (18% of the fauna) have declined <br />considerably in abundance in,recent years or have such naturally <br />restricted ranges that management measures are needed to keep <br />them from becoming endangered in the near future. Two additional <br />species would be considered threatened or endangered if they had <br />not been widely planted outside their native range as sport fish. <br />In total, 41 `/. (47 taxa) of the native fish fauna is extinct, in <br />serious trouble, declining in abundance, or very restricted in <br />distribution. In addition, all wild populations (runs) of spring <br />and winter run chinook salmon (Oncorhynchus tshawytscha) and of <br />summer steelhead (O. mvkiss) need immediate protection. <br />55