Fall movements of Pacific Salmon in Lake Ontario and several tributaries

Abstract

In the fall of 1982, 15 radio-tagged Pacific Salmon exhibited typical pre-spawning and spawning movements in Lake Ontario and several of its tributaries. There were no significant differences in daily and hourly movement rates between Coho Salmon (Oncorhynchus kisutch) and Chinook Salmon (O. tshawytscha). Salmon homed strongly to streams where they had been stocked 2-3 years earlier (64%); correlations between precipitation events and movements in the lake, stream entries and stream exits were low (r < 0.27; and angler mortality among fish entering tributaries was high (78%).