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Thus, the second critical concern that must be addressed is the level of population <br />established as a recovery goal for the species. In its most simple form, this goal consists <br />of a desired number of animals in the entire river or in a specified river reach. <br />Establishment of such goals would require an objective assessment of the factors having <br />important limiting effects on the population, and of the management options available to <br />reduce or eliminate these effects. <br />A strategy for determining the flow-habitat requirements for the recovery of the <br />endangered fishes has both short- and long-term components and may be portrayed <br />diagrammatically as follows: <br />Short-term Long-term <br />1. Identify probable limiting 1. Monitor populations, flows -E- <br />factors y <br />o and habitats <br />2. Establish recovery goals 2. Test and refine <br />(numerical population E hypotheses <br />objectives) E <br /> <br />3. Develop provisional flow ° <br />3. Refine recovery goals <br />recommendations based on 3 as needed <br />probable limiting-factor ° <br />vs. flow relations <br />y <br /> <br /> <br />4. Develop testable hypotheses c <br />N <br />E <br /> <br />4. Refine flow recommendations <br />based on predicted population e. as needed <br />responses to implementation E <br />of provisional recommendations <br />The short-term effort should be accomplished within two years, after adequate <br />baseline data on the fish populations and their habitats has been collected. Assuming <br />that the flow recommendations that result from the short-term effort are implemented, <br />4