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DRAFT27 <br />extreme events. This does not mean that extreme events create particularly favorable conditions. <br />A moderate year, in which peak flows are near average, temperature fluctuaxions are reliable and <br />habitats are stable, is likely to offer the most favorable conditions for good production and <br />subsequent recruitment into the following age group. However, the non-natives which have <br />become so plentiful in the rivers also do well under this circumstance. That Colorado squawfish <br />are better able to withstand extreme events gives them an advantage in survivorship over the non- <br />native species in such years, resulting in better overall recruitment. Because these two scenarios <br />are in conflict, and the effects of flow and extreme events are not well understood for the other <br />native fish, the best recommendation is to manage the river system as naturally as possible, in <br />order to take advantage of the positive aspects of both scenarios. <br />-27- <br />