. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. Increasing activity Intense activity Intense activity Decreasing activity 30 25 20 15 10 5- MaxTemp Min Temp Cottonwood Creek. 0-1—r 10 ~1—\—I—I—1—I—I—I—1—1—I—I—I I r- ~i I I I r~ 20 25 30 May June Figure maximum and minimum water temperatures in Mulkey and Cottonwood creeks during 11 May to 19 June 1981. Apparent intensity of spawning activity by golden trout in each creek noted. (Table 1). Differences in composition of mater
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. Increasing activity Intense activity Intense activity Decreasing activity 30 25 20 15 10 5- MaxTemp Min Temp Cottonwood Creek. 0-1—r 10 ~1—\—I—I—1—I—I—I—1—1—I—I—I I r- ~i I I I r~ 20 25 30 May June Figure maximum and minimum water temperatures in Mulkey and Cottonwood creeks during 11 May to 19 June 1981. Apparent intensity of spawning activity by golden trout in each creek noted. (Table 1). Differences in composition of material in redds between the two streams were not significant. Through visual observation it was possible to discern an obvious difference in gravel composition and sand embeddedness between substrates and riffles chosen for redd construction and those not used for spawning. Riffles used for spawning had less surface sand then those not used. However, this distinction was not apparent towards the end of the spawning season when many smaller fish began to. 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 Francisco, etc. ] State of California, Resources Agency, Dept. of Fish and Game
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