Record Details
page 163
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 163 Central Utah Project, Bonneville Unit : Diamond Fork Power System : final Environmental Impact Statement, page 163 |
| Coverage | Electronic reproduction; |
| Format | 163 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; CHAPTER IV AFFECTED environment AND ANT environmental consequences reservoir fisheries recommended plan A mathematical model developed by youngs and heimlich 198214 was used to determine the intrinsic productive capacity of monks hollow reservoir under the recommended plan as well as monks hollow and fifth water reservoirs under initial operating con ditions editions for the fifth water pumped storage alternative and hayes reser voir under the 1964 DPR alternative trout standing crop lbacreyear ibacreyear as shown in table 46 was predicted f for or each reservoir at maximum and minimum water levels resulting f from rom either gradual irrigation drawdown or rapid weekly fluctuation the former condition would apply to monks hollow and hayes reservoirs under the recommended plan and the 1964 DPR alternative respectively while the latter would apply to fif afif fifth th water and monks hollow reservoirs under the pumped storage alternatives although standing crop values presented in table 46 do not precisely describe predicted biological conditions in these reservoirs because of the unquantifiable effect of rapid and extreme water level fluctuation andor drawdown the data do represent the range in values anticipated furthermore the values are relative but provide an adequate basis of comparison among all major reservoirs under the various project alterna aeterna tives the analysis of predicted angler use also shown in table 46 was based on several assumptions since the reservoir fisheries would con sist entirely of stocked trout the assumption includes specified trout stocking rate growth rate carry carryover over creel return average catch rate and angler day length monks hollow reservoir would exhibit low trout productivity 693 to 857 pounds predicted angler use would range from 2554 to 3650 days per year with the reservoir at maximum water level table 46 sixth water and syar reservoirs would be too small and would undergo too rapid and extreme fluctuations to support viable fisheries strawberry reservoir currently provides one of the best flatwater fl atwater fisheries in the state the reservoir is a class I 1 fishery as classified by the utah division of wildlife resources and currently provides about 250000 fisherman days use each year large cutthroat and rainbow trout which are abundant in strawberry reservoir are known to enter the dia mond fork drainage through the strawberry tunnel and sixth water creek the number of trout entering the system in this manner is unquantified under present conditions trout enter sixth water creek relatively unharmed under project operation however trout entering syar tunnel from strawberry reservoir would likely not enter syar reservoir unharmed because they would first have to pass through syar powerplant Power plant in com pliance aliance with a commitment associated with the environmental assessment for the strawberry tunnel inlet rehabilitation a study will be con ducted to quantify fish movement from strawberry reservoir into syar tunnel for mitigation consideration such a study would be accomplished with input from and cooperation with state and federal resource agencies 163 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/3054 |
