Title: California fish and game
Identifier: californiafishgabien19501952cali2 (find matches)
Year: [1] (s)
Authors: California. Dept. of Fish and Game; California. Fish and Game Commission; California. Division of Fish and Game
Subjects: Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons
Publisher: (San Francisco, etc. ) State of California, Resources Agency, Dept. of Fish and Game
Contributing Library: California Department of Fish and Game
Digitizing Sponsor: Internet Archive

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Rock masonry check dams in Coldwater Canyon Creek, Riverside County, stream improvement program. Eight such dams were constructed with county fine money, under supervision of the fisheries biologists in the stream improvement program. Average cost per dam, including labor and materials, was $119.18. These are now providing adequate pool areas where catchable rainbow trout have been planted. Prior to this time, suitable trout habitat was lacking. Improvement Devices Again several counties appropriated funds from their share of fish and game fine moneys for stream improvement. Some of these funds were used to construct small loose rock and masonry dams in Southern Cali- fornia streams, principally to create pool areas. Our personnel cooper- ated with local interests in the design and construction of these dams. Rock masonry projects consisted of 35 dams on Holy Jim and Trabuco Creeks, Orange County, and eight dams on Coldwater Creek, River- side County. Loose rock dams were built as follows: Holy Jim Creek, Orange County, 40-50 dams; Cucamonga Creek, West Fork, San Ber- nardino County, 45; Silverado Creek, Orange County, 50; Soldier Creek, Los Angeles County, 30; Coldwater Creek, Riverside County, 30; Santa Ana River, South Fork, San Bernardino County, 40. Aquatic Weed Control Although aquatic weeds do not form a problem in the great majority of California fishing waters, members of the biological staff were called upon for advice and assistance in several troublesome instances. At Chubb Lake, Nevada County, personnel of District 3 successfully re- duced heavy growth of aquatic plants by treatment with sodium arsenite during June, 1952. On November 5-9, 1951, Lower, Middle, and Upper

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