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-15- <br />low. Since all interviews are lumped together, it would be difficult <br />at this time to measure the effects. If trophy fishing continues to <br />_ grow, some consideration should be given to calculating separate catch- <br />rates for these two types of fishing so that each could be better eval- <br />uated. <br />Rainbow plants continue to face a large rough-fish population of <br />Utah chub and white sucker with the resulting competition for food and <br />space. In addition, a large predator population of brown and lake trout <br />now exists. It is believed that early declines of rainbow trout were <br />due to increasing rough-fish populations. Recent declines, however, <br />appear to be related to the additional factor of predation. Which <br />factor is most important in limiting the rainbow is unclear since the <br />large predators and the white sucker appeared in the reservoir at much <br />the same point in time. <br />Recommendations <br />1. The present creel census on the reservoir must be changed so <br />that a more reliable estimate of fishing pressure can be obtained. This <br />recommendation is being carried out in 1978 with the initiation of aerial <br />pressure counts. This type of direct, randomized, progressive count using <br />an airplane appears to be the best alternative to the present system. <br />2. Some thought should be given to changing the creel census so <br />that trophy fishing can be separated from the rainbow fishing. From <br />this, more accurate data can be obtained to evaluate the stocking and <br />barging programs. <br />3. The barging program for 5-inch fingerling should be continued <br />until such time as it can be adequately evaluated.