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<br />DOW FT COLLINS <br /> <br />TEL:303-490-2621 <br /> <br />. <br /> <br />Apr n 93 <br /> <br />. <br /> <br />13:17 No.C08 P.02 <br /> <br />No.: 19B <br /> <br />RECOVERY IMPLEMENTATION PROGRAK <br />POR THE EHDANO!l!D PISH SPECIES <br />IN TH! urrEll. COLOJADO P.IVIJ. !lASIH <br /> <br />PY-1994 <br />SCOPE-OF-1I0U: <br />USIWlCH PIWPOS4L <br /> <br />Lead Agency: Colorado Division Wildlifo <br />Submitted by; Thomas P. Nesler <br />Address: 317 W. Prospect Ft. Collins CO <br />Phone: 303-484-2836 <br />Date: 4/28/93 <br /> <br />C&te~orv (cheek on.): <br />XX Ongoing project <br />Requested new st~rt <br />Unsolicited project <br />Outdde funding <br /> <br />1. Title of Proposal: <br /> <br />ASDlnall Studies - evaluation of Gunnison River flow man1nulation UDon <br />larval Droduetion for Colorado ~au.awfl.h in the Colorado River. "" C. 0111". 4 do <br /> <br />II. Relacionahip to Recovery Program/Ranking Factors: <br /> <br />The studie. described below ettend to areas of continued emphesis in the <br />FY.9l program guidance under item C, dealing with teBts of hypotheses <br />for effects on larval production, downstream transport of young, and <br />Ileuonal growth and overwinter survival of )'oung-of-the.year. Il.esulta <br />from tha.e studiee will hava applioatione under habitat managament and <br />nonnativa fish recovery eleRents. <br /> <br />III. Study Coals, Objectives. End Product; <br /> <br />i2&1: to ~termin. current statue and charaeteristics of reproductive <br />succe.s by Colorado squawfi.h in the upper maineteR Colorado River and <br />the effeet of experimontal flow. in the Gunnieon Rivor ereated within <br />the Aspinall Study Plan. <br /> <br />Objectivas; <br /> <br />1) to determine the relative abundance or population size of Colorado <br />equawfish produced by exlacins wild adulcs in the upper mainstem <br />Colorado River within Colorsdo. <br /> <br />2) To det.rmine the relative magnitude of retention of Colorado equawfish <br />larvae within thie reach based on availability of nursery habitat and <br />also the relative lose of larvae downetreaR due to larval drift or tho <br />loss of juveniles due to displacement during high spring flows. <br /> <br />1 <br />