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<br />Duff, Donald A, tech ed. 1996. Conservation assessment for inland cutthroat trout status <br />and distribution. U.S. Department of Agriculture, Forest Service, Intermountain Region, <br />Ogden, Utah. <br /> <br />ABSTRACT <br /> <br />This document focuses on the current status, distribution and range for five subspecies of <br />cutthroat trout Oncorhynchus clarki, which are found largely on national forest system <br />(NFS) lands and ecosystems in the Rocky Mountain and Intermountain West within the <br />United States from the Canadian to Mexican border. The five subspecies are designated <br />either species of special concern or sensitive. These subspecies are presently restricted to <br />a fragment of their former range, and they primarily occupy small, high-elevation streams <br />in remote headwaters of watershed basins. In the past, little was known about life history, <br />genetics, habitat relationships. and range of the five subspecies, but within the last decade <br />more management studies and research have been conducted by state and federal agencies <br />and academia. All subspecies within their historic (from 1800 A.D.) aquatic ecosystems <br />have been reduced from their historic occurrence and productivity. They have been reduced <br />from human activities more so than natural occurrences, such as introductions of non-native <br />fishes, habitat degradation and fragmentation, and overfishing. Current management is <br />centering upon development of conservation strategies and basin-wide assessments, and <br />their cooperative and interagency implementation through Forest Plans, public lands <br />Resource Management Plans and State Fisheries Management Plans. These plans and <br />resulting conservation agreements and strategies focus on restoration of aquatic habitats, <br />maintenance of existing indigenous cutthroat populations, and native cutthroat reintroduction <br />into waters within their historic range. <br /> <br />Keywords: cutthroat trout, Oncorhynchus clarki, indigenous species, non-native species, <br />conservation assessment <br /> <br />Cover photography by Donald A Duff; painting by Ralph Butler <br /> <br />1996 <br /> <br />CnQQ4 <br />--- <br />