Biological Opinions - Bureau of Reclamation

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Potential Stressor Fish relocation Dewatering Structural placement Project Effects Injury or mortality Mortality Life Stage Parr and smolts General Time June 15 to November 1 Mainstem Location IGD (RM 190) to Salmon River (RM 66) and tributaries in action area Minimization Measure(s) Compliance with CDFW’s Restoration Manual, proposed construction windows, NMFS’s fish screen criteria, and numerous others listed in Appendix C. Proposed Action Effects Up to 17 coho salmon juveniles may be captured each year, of which up to 1 may be injured or killed each year. Up to 1 coho salmon juvenile may be killed each year. Up to 1 coho salmon juvenile may be killed each year. 375
12.6.2 Effects of fitness consequences on population viability parameters 12.6.2.1 Abundance The Project will reduce spring rearing habitat availability, increase likelihood of disease prevalence, decrease outmigration rates, and will contribute to continued water quality impairments in the mainstem Klamath River in the spring and summer. However, the aggregate of the minimization measures, such as the annual habitat restoration, flow variability, minimum daily flows and adaptive management for decreasing disease risks, will minimize the adverse effects, especially during above average and wetter water years. In particular, restoration of instream and off-channel habitats will likely provide substantial quantity and/or enhanced quality of rearing habitat for coho salmon fry and juveniles in the mainstem Klamath River. In addition, water conservation and other habitat restoration activities in the tributaries will likely enhance tributary rearing habitats, which may decrease the number of coho salmon fry and parr from prematurely migrating out of the tributaries. By reducing the number of coho salmon fry and parr that prematurely enter the mainstem Klamath River, the exposure duration of these coho salmon life stages to the adverse effects in the mainstem Klamath River will be minimized. Of all the adverse effects of the proposed action, NMFS concludes that the disease risk from C. shasta is the most significant to coho salmon because C. shasta is a key factor limiting salmon recovery in the Klamath River (Foott et al. 2009). While NMFS cannot quantify the magnitude of the increased disease risk to coho salmon under the proposed action, NMFS concludes that the proposed action will result in disease risks to coho salmon that are lower than under observed POR conditions yet higher than under natural flow conditions. By lowering disease risks in a direction toward those under natural flow conditions, NMFS believes that coho salmon abundance will likely improve over the next ten years for the Upper Klamath, Middle Klamath, Shasta, and Scott river populations. 12.6.2.2 Productivity As discussed above, NMFS estimates the proposed action will result in disease risks to coho salmon that are lower than under observed POR conditions yet higher than under natural flow conditions. By lowering disease risks in a direction toward those under natural flow conditions, NMFS believes that coho salmon productivity will likely increase over the next ten years for the Upper Klamath, Middle Klamath, Shasta, and Scott river populations. 12.6.2.3 Diversity As discussed above, the minimization measures, such as the annual habitat restoration, flow variability, minimum daily flows and adaptive management for decreasing disease risks, will offset some of the adverse effects, especially during above average and wetter water years. In particular, restoration of instream and off-channel habitats will provide substantial quantity and/or enhanced quality of rearing habitat for coho salmon fry and juveniles in the mainstem Klamath River. In addition, water conservation and other habitat restoration activities in the tributaries will likely enhance tributary rearing habitats, which may decrease the number of coho salmon fry and parr from migrating out of the tributaries. Therefore, the proposed action is not 376
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National Marine Fisheries Service U
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7.4.5 LRS and SNS Population Dynami
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11.1.5 Critical Assumptions .......
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16 APPENDICIES ....................
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Table 8.2 UKL end-of-month elevatio
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LIST OF FIGURES Figure 3.1. The act
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Figure 11.17. Coho salmon fry habit
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ABBREVIATIONS AND ACRONYMS Abbrevia
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Abbreviation/Acronym YTEP WDFW WRIM
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In 2001, the Services issued BiOps
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Findings of Fact and Order of Deter
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proposed changes to the vegetation
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Figure 3.1. The action area for Rec
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4 PROPOSED ACTION Reclamation propo
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4.2 Element Two Operate the Project
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October 1 and March 1. The proposed
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Reclamation incorporated the 1981 t
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Provide Project irrigation deliveri
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Table 4.3. UKL fill rate adjustment
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Table 4.5. Calculation of fall/wint
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Flows below IGD are ultimately the
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The EWA, Project Supply, and UKL Re
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Table 4.8. Environmental Water Acco
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eleases somewhat on the ascending l
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fish disease, die off, entrainment,
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acre-feet when the Project Supply c
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Table 4.11. Monthly maximum Lower K
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4.2.4 Ramp-Down Rates at Iron Gate
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progresses and EWA volumes are upda
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O&M activities are carried out eith
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1. The A Canal has six headgates th
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Therefore, Reclamation proposes to
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coordinate with the NMFS to develop
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the confluence with Omogar Creek at
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though several major improvements t
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Sucker larvae transform into age-0
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units: (1) Clear Lake; (2) Tule Lak
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Figure 7.2. Adult spawning populati
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Table 7.1. Estimated LRS and SNS ad
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1905, Ch. 567, 33 Stat. 714). The P
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Figure 7.4 Modeled April through No
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7.9.2 Klamath Basin The Oregon Clim
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A change in mean precipitation rang
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Table 7.2 Impaired water bodies wit
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Table 7.3 Seasonal comparisons of p
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ammonia that is lethal to 50 percen
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Table 7.4 Estimated external phosph
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examination of juvenile suckers fro
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Evaluation of baseline hydrology in
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2012 1931 through 2012 12.6% 0.24 5
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The overall water year trend (Table
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Figure 7.7 Sprague River trends, wa
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Figure 7.9 Sprague River trends, wa
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Figure 7.12 Williamson River trends
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Figure 7.14 UKL trends, water years
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Figure 7.17 UKL: net inflow departu
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7.10.3.3 Competition and Predation
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By late July, surviving larval suck
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Threat Nature of Threat Life Stage
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2011) and increased adult spawning
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Based on the best available informa
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contrast, water levels began 1.5 ft
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evaporation and seepage estimated a
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prolonged low oxygen conditions if
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The April through September 4,034.6
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8 EFFECTS OF THE ACTION ON LOST RIV
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Although the volume of Project wate
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than 1 m), and fitting one or more
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Figure 8.3. UKL elevations at the e
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Services and Reclamation will deter
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For cumulative net inflow values be
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Figure 8.8. UKL elevations at the e
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Figure 8.10. UKL elevations at the
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Figure 8.12. UKL elevations at the
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natural and man-caused changes in i
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Table 8.1 UKL end-of-month surface
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UKL. Based on best available inform
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larvae in UKL. Annual production of
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Table 8.5 UKL end-of-month elevatio
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Based on our review of the literatu
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into the Pelican Bay water quality
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We assume that UKL surface elevatio
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vary by several orders of magnitude
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survival rates, we know that some o
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populations, and contains the large
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8.3.5.1 Effects to Adult Sucker Spa
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Table 8.8 Clear Lake surface elevat
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occur, especially in the west lobe.
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Table 8.9 End of the month surface
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8.3.7.4 Effects of Entrainment Loss
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The source of the sediment is unkno
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period when they migrate upstream t
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limited LRS and SNS persistence in
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term and localized and because fish
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8.5.1 Canal Salvage Reclamation pro
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high predation rates and failure of
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include the Klamath Basin Rangeland
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Figure 9.1 Designated CHUs for the
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These are discussed in greater deta
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The proposed action will have no ef
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No other spawning habitat exists be
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consulted on. Current monitoring da
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proposed action and this PCE suppor
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Because of a multi-decade lack of r
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Adverse effects of the proposed act
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that juvenile survival is most like
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elocation effort in Lake Ewauna to
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LRS and SNS population resiliency o
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stratum 4 (Interior Klamath) in whi
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Pacific salmonids Oncorhynchus spp.
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scenario, actions and elements of t
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flow prescriptions should mimic pro
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11.2.1 Current Condition of Critica
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11.2.2 Factors Affecting SONCC Coho
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e disoriented or displaced downstre
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enhancement, and rehabilitative act
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Water Temperature Sedimentation Org
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Figure 11.1 Longitudinal and season
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functioning floodplains that fail t
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downstream of IGD, (2) enhance coho
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few local ranchers and water distri
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in some tributaries, access to and
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11.3.7 Summary of Critical Habitat
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these two time periods, the effects
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consists of approximately 29,000 ac
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The PacifiCorp habitat conservation
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IGD, or used in constructed habitat
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estoration, watershed planning, sal
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Table 11.4. Modeled suspended sedim
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parasites Ceratomyxa shasta (causes
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that become infected is estimated t
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where snow water equivalent is proj
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minimizing disease risks, the detai
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Figure 11.4. Proposed action, histo
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Figure 11.6. Proposed action weekly
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Figure 11.9. Regression between EWA
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Figure 11.11. Proposed action and o
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Figure 11.12. Number of days per wa
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Figure 11.14. Monthly coefficient o
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IGD. The proposed action modeled da
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The results from Table 11.7 indicat
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likely to increase the quantity of
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habitat decreases between the Shast
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Table 11.9. Daily average mainstem
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Table 11.10. Daily average mainstem
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5% 3336 13176 27664 26168 30946 237
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The proposed action results in agri
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Figure 11.21. Monthly mean of daily
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Riparian restoration projects will
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expected to be typical riparian spe
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Table 11.13. Annual percent of proj
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esource needs as they grow, and 3)
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11.5.2 Klamath River Basin Adjudica
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coho salmon within the Klamath Rive
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aspects of a natural flow regime th
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element of coho salmon critical hab
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12.1.1.1 Risk Analyses for Endanger
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ESU DIVERSITY STRATA POPULATIONS IN
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eproduction, and distribution. The
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Figure 12.2. Historic population st
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the average ratio of IP-km to total
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Although long-term data on coho sal
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1980 1981 1982 1983 1984 1985 1986
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maintain viable abundances in many
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12.2.5.5 Viability Summary Though p
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coastal currents and upwelling, kno
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12.2.6.2 Marine Derived Nutrients M
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fisheries south of Cape Falcon, Ore
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12.3 Environmental Baseline of Coho
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water temperatures up to 19 ºC in
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Page 349 and 350: Although there are risks to Klamath
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Page 353 and 354: 12.4 Effects to Individuals The pro
Page 355 and 356: 12.4.1.2 Response 12.4.1.2.1 Adults
Page 357 and 358: (2012) believes is representative o
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Page 361 and 362: flows provide a limit to the increa
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Page 367 and 368: etween Trees of Heaven (RM 172) and
Page 369 and 370: action. Reclamation estimated that
Page 371 and 372: Based on literature, increased comp
Page 373 and 374: Table 12.6. Summary of risks result
Page 375 and 376: most juveniles. Stream flow diversi
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Page 381 and 382: Small pulses of moderately turbid w
Page 383 and 384: Boulder faces in the deflector stru
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Page 387 and 388: Adverse effects of the proposed act
Page 389 and 390: Potential Stressor Habitat Reductio
Page 391: Potential Stressor Elevated water t
Page 395 and 396: 13 INCIDENTAL TAKE STATEMENT Sectio
Page 397 and 398: Table 13.1 Summary of maximum annua
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Page 401 and 402: Table 13.2 Estimated annual maximum
Page 403 and 404: 1.2.1.8. Incidental Take Caused by
Page 405 and 406: characteristics of aquatic species,
Page 407 and 408: Table 13.5 Expected annual Environm
Page 409 and 410: Cause of Incidental Take Habitat Re
Page 411 and 412: Clear Lake, Gerber Reservoir, and T
Page 413 and 414: This term and condition is requirin
Page 415 and 416: 13.4 Mandatory Monitoring and Repor
Page 417 and 418: Required hydrologic monitoring incl
Page 419 and 420: Table 13.7. Summary of LRS and SNS
Page 421 and 422: T&C or Mandatory Monitoring Mandato
Page 423 and 424: Table 13.9 Summary of reporting and
Page 425 and 426: Table 13.10 Summary of meetings req
Page 427 and 428: the above QA/QC procedures describe
Page 429 and 430: Barry, P.M., E.C. Janney, D.A. Hewi
Page 431 and 432: Burdick, S.M. and J. Rasmussen. 201
Page 433 and 434: Dunsmoor, L., L. Basdekas, B. Wood,
Page 435 and 436: Garen, D. 2011, Upper Klamath Basin
Page 437 and 438: Janney, E.C., B.S. Hayes, D.A. Hewi
Page 439 and 440: Laenen, A., and A.P. LeTourneau. 19
Page 441 and 442: Miller, R.R., and G.R. Smith. 1981.
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Perkins, D.L., and G.G. Scoppettone
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(Deltistes luxatus) in Tule and Cle
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Terwilliger, M. 2006. Physical habi
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USBR [U.S. Bureau of Reclamation].
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Williams, J.E. 2000. Chapter 13. Th
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Arthington, A.H., S.E. Bunn, N.L. P
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Beeman, J., S. Juhnke, G. Stutzer a
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Brommer, J.E. 2000. The evolution o
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Department of the Army Regional Gen
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Chilcote, M. W. 2003. Relationship
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Dunsmoor LK, and Huntington CW. 200
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Foott, J.S., R. Stone, E. Wiseman,
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Habera, J.W., R.J. Strange, B.D. Ca
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Hemstreet, T. 2013. Electronic mail
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Jordan, M. S. 2012. Hydraulic predi
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Kostow, K. E., A. R. Marshall and S
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MacFarlane, R. B., S. Hayes, and B.
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Moyle, P. B. 2002. Inland Fishes of
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PacifiCorp Klamath Hydroelectric Pr
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Oregon Department of Environmental
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Puckridge, J. T., F. Sheldon, K. F.
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Ring, T.E. and B. Watson. 1999. Eff
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Sommer, T. R., M. L. Nobriga, W. C.
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Taylor, R. 1991. A review of local
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USFWS [U. S. Fish and Wildlife Serv
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Ward G, and Armstrong N. 2010. Asse
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Winker, K., J. H. Rappole, and M. A
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77 FR 476. National Marine Fisherie
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UKL Elevation (feet) Active Storage
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16.2 Appendix B: Elevation Flow Dat
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490
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Week of Water Year 1981 1982 1983 1
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Water Year October November Decembe
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16.3 Appendix C: Description of Res
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4. Removal of Small Dams (permanent
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Information regarding consideration
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9. Piping Ditches a. Project Descri
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. Site-Specific Restrictions Restri
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6. Protection Measures The followin
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to enter or be placed where they co
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shall be distributed throughout the
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weed free straw, silt fences) are i
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the project is located, and compris
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2. Post Construction Monitoring and
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Median Seasonal Flow (acre-feet) Me
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Median Seasonal Net Inflow (acre-fe
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16.5 Appendix E: Observed and Model
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Observed and modeled proposed actio
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Observed and modeled proposed actio
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16.6 Appendix F: Analyzing the rela
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Table 1. Paired comparison of the c
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Table 3. The difference in the mean
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