Scale Analysis: October 1, 1989 to September 30, 1991

This report identifies the rearing origin of coho salmon (wild, hatchery yearling, or hatchery accelerated) spawning in Oregon coastal streams and at hatchery broodstock collection facilities. Determine the age composition and length at age of chinook salmon in Oregon coastal index streams. Determine the age composition and early life history of spring and fall races of chinook salmon in the Rogue River. Determine the age composition of chum salmon spawning in Tillamook Bay and Nestucca River tributaries. Determine the age of maturity, spawning history, and growth rates of native redband trout. Determine the length at age, age frequency, and changes in growth rates of largemouth and smallmouth bass sampled in Oregon rivers, lakes, and reservoirs.