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Assessment Summary

View the details of the Council Recommendation for this project as part of the RME / AP Category Review.

NPCC Assessment 1999-003-01-NPCC-20110113
Assessment Number: 1999-003-01-NPCC-20110113
Project: 1999-003-01 - Evaluate Spawning of Fall Chinook and Chum Salmon Just Below the Four Lowermost Mainstem Dams
Review: RME / AP Category Review
Proposal: RMECAT-1999-003-01
Proposal State: Pending BPA Response
Approved Date: 6/10/2011
Recommendation: Fund (Qualified)
Comments: Implement with condition through FY 2016: Sponsor to address ISRP qualifications in 2012 contract.
Conditions:
Council Condition #1 Qualifications. Information is needed on variance measures of the spawning population estimates. How are they determined, what have they been, and are the end users satisfied with them? Details are needed on specific methods and survey techniques. Over what time periods are the redd surveys conducted, and how many times per week are they carried out? Are any shoreline surveys performed in areas inaccessible to jet sleds? Where are the piezometers located, relative to redd concentrations? How often do temperature loggers record intragravel water temperatures? Is dissolved oxygen ever measured in the egg pocket? A map of the principal spawning areas for Chinook and chum salmon below Bonneville Dam would be helpful, particularly if it highlighted sites where the majority of redds occur. Information on use of the Ives Island area by coho (mentioned in passing in the proposal) and lamprey would also be useful. Information about movement of sediments in the spawning grounds as the river channel migrates would be helpful. Is this metric being monitored? Have other potential limiting factors on chum fry emergence been considered, e.g., predation on eggs or recently emerged fry? Does boat activity in the area affect egg and alevin survival through substrate disturbance? To put this project in context, it would be useful to find out why was the decision made to remove data analysis from this project and place it in two related projects? Was this done for efficiency or for another reason?