. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. CUTTHROAT TROUT IN HEADWATER STREAMS 69 of Juan de Fuca (Figure 1). The Washington Department of Game operates permanent fish traps near the mouths of Snow and Salmon creeks. The traps are designed to trap all migrating salmonids longer than 300 mm fork length (fl) year-round and greater than 50 mm fl from March through August. Study areas were located upstream of 20-m single-step falls in Snow Creek, a steep bedrock chute with a 6-m
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. CUTTHROAT TROUT IN HEADWATER STREAMS 69 of Juan de Fuca (Figure 1). The Washington Department of Game operates permanent fish traps near the mouths of Snow and Salmon creeks. The traps are designed to trap all migrating salmonids longer than 300 mm fork length (fl) year-round and greater than 50 mm fl from March through August. Study areas were located upstream of 20-m single-step falls in Snow Creek, a steep bedrock chute with a 6-m drop at an angle of 60° or greater in Andrews Creek, and upstream from a series of log jams, boulder jams, and cascades in Salmon Creek. The difference in streambed elevation between the up and downstream sides of the jams in Salmon Creek was 2-4 m. Preliminary sampling of each study section failed to find steelhead and coho, Oncorhynchus kisutch, implying a lack of penetration by anadromous fish. VICINITY MAP Strait of Juan de Fuca. I STUDY AREA ? FISH TRAP MAXIMUM OBSERVED PENETRATION OF STtELHEAD TROUT AND COHO SALMON CROCKER LAKE 1 km FIGURE 1. Location of study areas in Snow, Andrews, and Salmon creeks. Anadromous cutthroat trout in Snow and Salmon creeks are the late-entry variety (Johnston and Mercer 1976). Adult cutthroat upstream migration peaks during January through April. Smolt migration peaks during May but occurs March through July. METHODS Cutthroat from the study areas were collected using a battery powered back- pack electrofisher. All fish were measured to the nearest millimetre fork length, fin clipped, and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original California. Dept. of Fish and Game; California. Fish and Game Commission; California. Division of Fish and Game. [San Franci
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