The Independent Scientific Advisory Board (ISAB) was asked in a memo dated November 10, 1999 from Brian J. Brown, Chair, Implementation Team (IT), addressed to Michael Schiewe and Chip McConnaha, to review the issue of appropriate spill levels at The Dalles Dam. The IT asked the ISAB two specific questions:
Question 1. Based upon a comprehensive review and analyses of the study design, methodology, empirical data and results, are there real and significant differences between the survival of fish through 30% and 64% spill levels at The Dalles Dam?
Question 2. Based on a comprehensive review and analyses of existing empirical data, what are the most appropriate future research steps, including a recommended study design and methodology, to determine an operational plan at The Dalles Dam that maximizes juvenile passage survival?