The potential impact of sculpin predation on sockeye production
was shown clearly in the feeding experiments. Both species
of sculpin readily consumed eggs, with the number
consumed being directly related to fish size and the state (fresh
versus water hardened) of the eggs. Indeed, they appeared to
gorge on eggs at the first opportunity. For example, large
sculpins could easily consume over 20 fresh eggs, and up to 48,
within minutes of their discovery