Chapter 2 of the publication below provides very good info on Salmon Life Histories and is available on-line
Developing a Research and Restoration Plan for Arctic-Yukon-Kuskokwim
(Western Alaska) Salmon
Committee on Review of Arctic-Yukon-Kuskokwim (Western Alaska) Research and
Restoration Plan for Salmon, National Research Council
http://books.nap.edu/catalog/11080.html