Record Details

page C-79

Digital Collections at BYU

Field Value
Title page C-79 Final environmental statement : authorized municipal and industrial system, Bonneville Unit, Central Utah Project, Utah, Vol. 1, page C-79
Coverage Electronic reproduction;
Date 14
Format C-79 text/PDF
Rights Brigham Young University; http://lib.byu.edu/about/copyright/generic.php Public Domain Public
Language English; eng; en
Relation Central Utah Project; Western Waters Digital Library; table C 25 loss of river habitat for endangered fish species in upper colorado river system CRSP developments constructed or under construction unit miles eliminated by inundation glen canyon colorado river san juan river flaming gorge green river navajo san juan river curecanti Cure canti gunnison river total loss due to water quality change total 186 115 15 201 71 71 72 65 137 35 40 75 50 50 364 170 534 I 1 also altered habitat in lower basin glen canyon dam in addition to altering 15 miles of habitat downstream in the upper basin also altered flow and water quality downstream in the lower basin for many more miles including the marble and grand canyon areas which were once considered significant habitat for the native fish species prior to closing flaming gorge dam the fish and wildlife service conducted a fish eradication program in the reservoir basin and in the tributary area downstream to dinosaur national monument which eliminated many of the native fishes in this section of the green river however this operation did not kill all of the fish or permanently alter the river habitat the curecanti Cure canti unit dams have not directly affected any of the original habitat of the four large river species however the associated changes in flow regime and temperature in the 50 mile stretch of the gunnison river between delta and grand junction colorado have probably contributed to the decline of some species and the elimination of others other othersj sJ 1 7 unlike the large storage units discussed above the smaller participating projects constructed or under construction have not eliminated habitat of the colorado river endangered fish species the projects in total however reduce the flows in the mainster mainstem main stem change water quality and therefore may indirectly have an adverse effect on the endangered fish species the degree to which the projects may adversely affect the endangered species is very difficult to estimate because of the lack of information concerning life history and habitat requirements I 1 1 kidd george an investigation of endangered and threatened fish species in upper colorado river as related to bureau of reclamation projects unpublished consultants report for bureau of reclamation january 1977 C 79
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/7448

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