Enumeration and Location and Spring Chinook in the Big Quilcene River

摘要

Initial returns of three-year-old Nooksack X Cowlitz spring chinook were expected to return to Quilcene National Fish Hatchery (NFH) in the spring of 1984. It was uncertain whether these chinook would hold in hatchery. The Olympia Fisheries Assistance Office initiated a series of snorkel surveys in an effort to: (1) estimate the number of spring chinook holding below the hatchery, and (2) determine the location of holding areas.