Kokanee salmon were cyclic in abundance. Rainbow trout appeared to be less cyclic in abundance than were kokanee salmon. Kokanee salmon primarily live in the pelagic zone of the lake from the surface to a depth of about 100 m. They prey on small emerging benthic macroinvertebrate pupae and larvae and terrestrial insects landing on the lake surface. They also prey on Daphnia .
Rainbow trout live in the nearshore area of the lake.
They prey on large bodied terrestrial insects from the lake surface and benthic macroinvertebrates. Rainbow trout also prey on kokanee salmon.