Laserfiche WebLink
3 <br />- -Before-construction of the dam and initiation, of the, fish„control <br />project, several individuals and groups had expressed concern over the <br />effects these two events would have on the fauna of the Green River, <br />particularly that- port-ion -in Dinosaur National Monument. As a result <br />of this concern and interest in sound resource management, several <br />investigations of the fauna and flora of the Green River were conducted <br />=-: prior- to the rotenone-t-reatment- --Bosley (1960), McDonald and Dotson <br />(1960), and Dibble ed. (1960), studied fish and invertebrates in the <br />portion of the river now impounded by the dam. Pre-impoundment studies <br />of the -river- fauna below the dam and in Dinosaur National Monument were <br />conducted by Hagen and Banks (1963) and Woodbury et al. (1963). A <br />study of bottom fauna conducted by Binns (1965) above Flaming Gorge Dam <br />began be€ore impoundment and continued through 1964. <br />Following the controversy arising over the fish control project, <br />the Utah Cooperative Fishery Unit was directed by the Department of the <br />'In'terior°rto =investigates 'the di3stribution and ecology of the fishes and <br />fish-food organisms below the dam. The present study is concerned with <br />the latter group, the macroinvertebrates, which form an important part <br />Of the food chain for'-fish.'-'The objectives of this study were to: <br />1. Determine the species composition of macroinvertebrates in <br />the Green River below Flaming Gorge Dam. <br />2. Determine' the distribution and abundance of macroinverte- <br />brates in the Green River below Flaming Gorge Dam in 1964 <br />and 1965. <br />` 3. - .-- Compare the' dompo'sit on` of -the invertebrate fauna below Flam- <br />ing Gorge Dam with the fauna reported from the area prior to <br />fish eradication and impoundment.