Record Details
page 3.4-2
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 3.4-2 Finding of No Significant Impact Lake Fork Section 203 Alternative : Proposed Action, page 3.4-2 |
| Coverage | Electronic reproduction; |
| Format | 3.4-2 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; 900 fish per mile in reach LFB LF B 13 which is upstream of the confluence with the yellowstone river to none in the lower river in reach LFD LF D which is downstream from the red cap canal see figure 3.41 341 34 1 total trout population estimates for the yellowstone river range from more than 600 fish per mile in the upper reach to less than 100 fish per mile in the most downstream reach see figure 3.41 341 34 341 1 in general trout species composition shifts from rainbow rainbowcutthroat cutthroat hybrids and brook trout in upper reaches of both rivers to brown trout in lower reaches see table 3.41 341 34 341 1 TABLE 3.41 341 34 341 1 distribution of fish species collected in the lake fork LF and yellowstone YL rivers study reachstation Reach Station species LFA LF A LFIB LFB LF IB B LF cl LF c2 ca LFD LF D YLA YL A YL ba b1 1311 iril YL 132 brook trout brown trout rainbow cutthroat andor hybrids mountain whitefish sculpin spp app mountain sucker flannelmouth sucker white sucker carp speckled dace 11 minnow spp app green sunfish 0 0 0 0 0 0 0 0 0 0 0 0 0 aa 0a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a Collect collected dd in an off channel seep fed by an irrigation canal probably speckled dace the two most apparent factors causing downstream changes in trout numbers and species composition are river flow and water temperature in the lake fork river system flows generally decrease proceeding downstream because of diversions this decrease appears most responsible for the downstream decrease in trout numbers and is reflected in population estimates for study sites upstream and downstream of major canal diversions in the lake fork river for example the population estimate for trout upstream of the C canal diversion station LFCI LF CI was approximately 100 fish per mile compared to less than 10 fish per mile downstream of this diversion station LF c2 ca see figure 3.41 341 34 341 1 the d C canal is one of the largest diversions on the river and takes most of the water from the middle lake fork river system during summer in the yellowstone river population estimates were nearly 400 trout per mile upstream of the yellowstone feeder canal station YLBI YL BI and less than 100 trout per mile downstream of this diversion station YL 132 see figure 3.41 341 34 341 1 the yellowstone feeder canal is the largest irrigation diversion on the river from about late july to late august each year there is essentially no noflow roflow row in the yellowstone 342 34 2 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/11963 |
