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<br />B. Objectives: <br /> <br />1. Determine trends in the populations of the endangered fishes. <br /> <br />2. Develop empirical models that aid our understanding of the <br />environmental variables that affect these population trends. <br /> <br />3. Determine the efficacy of management actions intended to aid in the <br />recovery of the species. <br /> <br />4. Assist in the establishment of definitive recovery goals. <br /> <br />5. Monitor trends in populations of selected .sympatric species. <br /> <br />6. Develop population estimates for selected species in selected areas. <br /> <br />V. Study area: Upper Colorado River BasincGreen, Colorado, Gunnison, White, <br />and Yampa rivers; sampling reaches are identified in the ISMP handbook (to be <br />modified in 1998). <br /> <br />VI. Study Methods/Approach: As described in the ISMP Handbook (to be modified <br />in 1998). <br /> <br />VII. Task Description and Schedule <br /> <br />1. Purchase and distribute PIT tags for use in the monitoring program. <br /> <br />Pit tags are purchased and distributed from the Grand Junction Office. All <br />PIT tags are scanned and cataloged according to which person or agency <br />they are distributed to. Tagging lists submitted by researchers are <br />compared to the catalog to check for encoding errors. <br /> <br />2. Maintain the Interagency Standardized Monitoring Program Database. <br /> <br />Individual investigators keypunch monitoring program data into files with <br />established format and submit them to the database manager. The data are <br />double checked for errors and combined into appropriate files. Data on <br />samples preserved during YOY Colorado squawfish monitoring are added to <br />the files after the information is provided by the Larval Fish Laboratory. <br /> <br />3. Update the ISMP Handbook to include recommendations incorporated <br />during 1997 - 1998 review of the monitoring program. <br /> <br />2 <br />