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Show ( 5) Aquatic Invertebrates In order to assess the ecological impact oa aquatic invertebrate communities due to modification of existing streams and rivers or through the building or enlarging of reservoirs, comprehensive baseline studies should be conducted before construction. 66 To date, the availability of such studies is limited. However, some general assessments have been made and certain impacts can be predicted. The most noticeable changes in the 39.2 miles of stream that would be lost to inundation would involve the failure of stream adapted organisms to survive under reservoir conditions. Reduced flows below Unit features would reduce the amount of invertebrate habitat and cause decreases in the populations inhabiting these sections of stream. However, warmer water resulting from reduced flows and reduced velocity conditions could increase production rates particularly at diversion dams. The diking of Utah Lake would have a profound impact upon the existing community of aquatic invertebrates which subsequently could adversely affect the fishing and water quality of the lake. 00' ' Preliminary investigation has revealed that a section of the east shore of Goshen Bay is ecologically unique for Utah Lake and the intermountain region ( Refer to Section B).? 8 This area would be virtually eliminated by the diking of Goshen Bay. The Bureau of Reclamation plans to have baseline studies carried out on Utah Lake, particularly regarding the impacts of diking and the potential for duplicating the desirable aquatic spawning conditions that under the proposed plan would be eliminated. Esthetics Esthetics can be defined as that branch of philosophy dealing with beauty and the beautiful, especially with judgments of taste concerning them. Tnus, the desirability of any object is dependant upon the tastes of the observer. The inherent subjectivity of esthetics 361 |
