Snake River White Sturgeon Conservation Plan ... - Idaho Power

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Status and Habitat Use of Snake River White SturgeonIdaho Power CompanyLIST OF TABLESTable 1.Table 2.Table 3.Table 4.Table 5.Table 6.Table 7.Table 8.Abundance of white sturgeon in Snake River reaches between LowerGranite Dam and Shoshone Falls...........................................................................57Summary of movement by sonic-tagged white sturgeon in theBliss−C.J. Strike reach of the Snake River. Data from Idaho PowerCompany................................................................................................................58Summary of movement by sonic-tagged (S) and radio-tagged (R) whitesturgeon in the C.J. Strike−Swan Falls reach of the Snake River. Datafrom Idaho Power Company..................................................................................59Summary of movement by sonic-tagged (S) and radio-tagged (R) whitesturgeon in the Swan Falls−Brownlee reach of the Snake River. Data fromLepla et al. (2001)..................................................................................................60Summary of movement by sonic-tagged white sturgeon in theOxbow−Hells Canyon reach of the Snake River. Data from Lepla et al.(2001).....................................................................................................................61Summary of movement by sonic-tagged white sturgeon in theHells Canyon−Salmon River reach of the Snake River. Data from Leplaet al. (2001). ...........................................................................................................62USGS gauging station information for the Snake River........................................63USGS gauging station information for tributaries.................................................63Table 9. Description of Hells Canyon, Oxbow, and Brownlee dams. .................................64Table 10.Table 11.Table 12.Table 13.The probability by project of sturgeon of various lengths being struck byturbine blades.........................................................................................................65Estimated costs for downstream passage options at Brownlee Dam.....................65Estimated costs for downstream passage options at Oxbow Dam.........................65Estimated costs for downstream passage options at Hells Canyon Dam...............66Table 14. Estimated costs for upstream passage options at Hells Canyon Dam. ..................66Table 15.Table 16.Estimated costs for upstream passage options at Oxbow Dam..............................66Estimated costs for upstream passage options at Brownlee Dam..........................66Page viHells Canyon Complex
Idaho Power CompanyChapter 4: Conceptual Design for White Sturgeon Passage FacilitiesLIST OF FIGURESFigure 1.Figure 2.Figure 3.Study area map depicting the locations on the Snake River of theHells Canyon, Oxbow, and Brownlee dams. .........................................................67Mean movement of and maximum recorded distance traveled by whitesturgeon from their initial capture locations in Snake River reachesbetween Bliss Dam and the confluence with the Salmon River. Data fromIdaho Power Company...........................................................................................69Movement behavior of reproductive white sturgeon during the 1992 and1993 spawning periods in the Snake River between Bliss (RM 560) andC.J. Strike (RM 494) dams. Data from Lepla and Chandler (2001)......................70Figure 4. Movement behavior of reproductive white sturgeon during the 1994, 1995,and 1996 spawning periods in the Snake River between C.J. Strike(RM 494) and Swan Falls (RM 458) dams. Data from Lepla and Chandler(2001).....................................................................................................................71Figure 5.Figure 6.Movement behavior of reproductive white sturgeon during the 1997 and1999 spawning periods in the Swan Falls−Brownlee (RM 285−458) andOxbow−Hells Canyon (RM 247–273) reaches of the Snake River. Datafrom Lepla and Chandler (2001)............................................................................72Movement behavior of reproductive white sturgeon during the 1999 and2000 spawning periods in the Snake River between Hells Canyon(RM 247) and Lower Granite (RM 107) dams. Data from Lepla andChandler (2001). ....................................................................................................73Figure 7. Conceptual drawing of a fish ladder. .....................................................................74Figure 8.Conceptual drawing of sturgeon entering fish ladder orifices...............................75Figure 9. Conceptual drawing of a Borland lock. .................................................................76Figure 10. Conceptual drawing of the Bonneville Dam fish locks. ........................................77Figure 11. Conceptual drawing of the Tzymlyanskij fish lock. ..............................................78Figure 12. Conceptual drawing of a fish lift. ..........................................................................79Figure 13.Figure 14.Conceptual drawing of an alternative fish lift........................................................80Conceptual drawing of a pressurized fish lock for upstream passage offish..........................................................................................................................81Hells Canyon ComplexPage vii
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Snake River White Sturgeon Conservation Plan ... - Idaho Power

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