This is a sea-run fish (you can tell by its size), but it has been in the river longer than most "fresh" trout, as it has started to assume some more muted brown hues, pronounced spots, and iridescent blue shades along its gill plates. After this fish spawns, it will once again run into the open ocean, where trout apparently range relatively close to shore, near the mouth of the river where they were born. The greatest predator to sea trout in the open ocean is the sea lion.