2016 California WaterFix Aquatic Science Peer Review Materials

Materials for CA WaterFix Aquatic Science Peer Review – Phase I

For Review:

  1. NMFS Biological Opinion Draft Analytical Approach
    1. Draft analytical approach
    2. South Delta Conceptual Model
  2. 2016 CWF Biological Assessment (BA) Sections for Review
    1. Chapter 6 (Delta Smelt Effects Analyses only)
    1. Chapter 5 (Salmonids and Sturgeon Effects Analysis)

 Note: All methods sections listed can be found in Appendix 5.D Quantitative Methods and Detailed Results for Effects Analysis of Chinook Salmon, Central Valley Steelhead, Green Sturgeon, and Killer Whale

Methods: Section 5.D.1.1.1 North Delta Exports (for near-field effects only; other effects are in Sections 5.D.1.2 Indirect Mortality Within the Delta (Through-Delta Survival) and 5.D.1.3 Habitat Suitability)

Methods: Impingement, Screen Contact, and Screen Passage Time (assuming “travel time” = screen passage time)

There is no analysis of predation in Appendix 5.D

Methods: Section 5.D.1.2 Indirect Mortality within the Delta (Through-Delta Survival)

Methods: Section 5.D.1.2.2 Delta Passage Model, Section 5.D.1.2.3 Analysis Based on Newman (2003), Section 5.D.1.2.4 Analysis Based on Perry (2010), and Section 5.D.3 Life Cycle Models

Methods: Section 5.D.1.3.1 Bench Inundation

Methods: Section 5.D.2.1 Water Temperature Methods and Section 5.D.2.2 Spawning Flow Methods

3.  Longfin Smelt Analytical Framework and Effects Analysis

    1. Draft Analytical Approach
    2. 2081 Take Analysis
    3. Longfin Smelt Quantitative Analyses
    4. PTM results

Background information:

Biological Assessment

  1. 2016 CWF Biological Assessment

                      a.     DSM2 Grid Version 2.0

Federal Policies and Guidance

  1. USFWS Section 7 Analytical Framework, p.138-139
  2. Endangered Species Act Section 7 Consultation Handbook
  3. 2008 USFWS Biological Opinion on the Long-Term Operational Criteria and Plan (OCAP) for coordination of the Central Valley Project and State Water Project
  4. Designated Delta Smelt Critical Habitat Map
  5. Designated Delta Smelt Critical Habitat
  6. NMFS Aquatic Species Critical Habitat
  7. Warranted But Precluded 12-Month Finding to Uplist Delta Smelt to Endangered Status


  1. Lindley et al. 2007
  2. McElhaney et al. 2000
  3. 2015 Final MAST report “An updated conceptual model for delta smelt: our evolving understanding of an estuarine fish.”
  4. Final Report on Development of Flow Criteria for the Sacramento-San Joaquin Delta Ecosystem
  5. Effects Analysis State Water Project Effects on Longfin Smelt, California Department of Fish and Game, 2009.
  6. Nobriga, M. L., and J. A. Rosenfield. 2016. Population dynamics of Longfin Smelt in the San Francisco Estuary II: disaggregating forces driving long-term decline of an estuarine forage fish. Transactions American Fisheries Society 145(1):44-58
  7. FINAL REPORT: A Synthesis of Delta Smelt Growth and Life-History Studies, Prepared for the California Department of Fish and Wildlife by: James A. Hobbs, Department of Wildlife, Fish and Conservation Biology University of California-Davis, December 2015.


  1. Independent Review Panel Report: BDCP Effects Analysis Review, Phase 3 - March, 2014
  2. Report of the 2015 Independent Review Panel (IRP) on the Long-term Operations Biological Opinions (LOBO) Annual Review (December 16, 2015)
  3. Delta Smelt 5-Year Review


Supplemental Materials Requested by the Panel:

Additional Materials Provided at the Review:


Public Comment: