Establishment of a chinook snorkel index survey in East Creek on Northern Vancouver Island

Presently, only two index streams are surveyed for chinook salmon in Area 27 on Northern Vancouver Island. Both streams have been influenced by present or past hatchery operations and escapement estimates reflect marine mortality rates, as well as hatchery production rates. East Creek is a moderately sized system flows just north of Brooks Peninsula, and has only recently become accessible by logging road. Historical surveys associated with expanding hatchery production in the period 1960-1980 revealed a natural chinook population in East Creek but there has been no history of hatchery augmentation.
Establishing an index snorkel survey in East Creek would provide an opportunity to examine population abundance trends in a system unaffected by hatchery production. We propose to establish an index snorkel survey in East Creek, and to determine possible hatchery stray contributions through a complete sampling program including DNA, scales and otoliths on adult chinook post-spawn mortalities.