Sculpin predation on
sockeye eggs is positively dependent on sculpin size and on the state of the eggs (fresh versus water hardened), with the
largest sculpins able to consume nearly 50 fresh eggs at a single feeding and 130 over a 7-day period. The number of sculpins
in sockeye nests is greatest at the beginning of the spawning run, lowest in the middle, and high again at the end, with peak
numbers of over 100 sculpins per nest (1 m2
)