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<br />determination of effects of winter flows on overwinter survival of <br />young fi sh. <br /> <br />Adult Recruitment (link between recruitment of youna Colorado <br />sauawfish and recruitment to adult stocks) <br /> <br />This element is intended to provide a link between results of the <br />fiTst three elements and data on adult fish stocks by integrating <br />past and future ISMP efforts with overall objectives of the 5-Year <br />Flaming Gorge Research Program. Although not a long term study like <br />most in the Core-Research studies it integrates other long term <br />monitoring efforts with the Research Program. Results developed <br />under this element, based in part on ISMP data, will allow for <br />confirmation of flow reconmendations and a better evaluation of <br />impacts of different water years on recruitment of Colorado <br />squawfish to adult stages. <br /> <br />One study ("Growth of young Colorado squawfish as related to adult <br />recruitment") was implemented under this element in FY 1991 and <br />completed in FY 1992. Objectives of the study included 1) review of <br />historic tagging data, 2) investigation of relationships between <br />first-year growth and survival to adult stocks, and 3) relationships <br />of between flows during the recruitment period and survival of young <br />fish to the adult stage. <br /> <br />3.3.3 HYpothesis-Testing Studies <br /> <br />This area of effort is the second component of the integrated research <br />program. Questions concerning how flows, particularly reconmended seasonal flows <br />and especially those for winter and spring periods, affect selected aspects of <br />fish populations wi 11 be addressed by studies designed to test speci fie <br />hypotheses. . <br /> <br />Specific, a priori "experiments" are powerful tools for determining cause <br />and effect relationships. These types of short-term studies are necessary to <br />establish links between flows and status of native and nonnative fishes and to <br />support, refute, or refine specific hypotheses .concerning seasonal flow <br />reconmendations. Proposals for hypothesis-testing studies will be submitted on <br />an annual basis. Cooperating agencies will review proposals prior to field and <br />laboratory activities and. assign funds to the most pertinent studies. Results <br />from hypothesis-testing studies will be used to clarify information generated by <br />core-research studies. Hypotheses-testing studies will assist in answering <br />questions concerning ways in which flows affect fishes of interest and in <br />refining seasonal flow recommendations. A number of studies were identified by <br />the research team for inclusion under the hypothesis-testing effort (Table 2). <br />Table 2 should be used as a general guide to hypothesis-testing studies <br />identified to date; however. it is intended that this list remain flexible so <br />that priorities can be changed or new studies included as needed. <br /> <br />Flaming Gorge Studies <br /> <br />B <br />