. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. no servativ(^ tons. CALTFOIJXTA FISH AND GAME fstiiiiMto. Tlie (>stii)int(Ml tolnl ;nii(iiiii1 fish killed was 95 COST OF THE PROJECT The costs of the operating phases of the project totaled abont $6,000. This is computed on the basis of $2,100 for salaries, $1,400 for operating expenses, and $2,500 for materials. The costs of preliminary and follow- up survey are not included in tlicse figures. The cost of treatment per mile of st
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. no servativ(^ tons. CALTFOIJXTA FISH AND GAME fstiiiiMto. Tlie (>stii)int(Ml tolnl ;nii(iiiii1 fish killed was 95 COST OF THE PROJECT The costs of the operating phases of the project totaled abont $6,000. This is computed on the basis of $2,100 for salaries, $1,400 for operating expenses, and $2,500 for materials. The costs of preliminary and follow- up survey are not included in tlicse figures. The cost of treatment per mile of stream averaged about $20. EVALUATION Pretreatment sampling of the tish ])opulation, both to determine whether or not a particular stream warranted treatment and to be able to eA'aluate the results of the treatment by a comparison of the fish popu- lations before and after treatment, was carried out. Methods Visual checks were used on most of the shallow tributaries to deter- mine the upstream limits of both Sacramento squaw^fish and other rough fish. They were also used in a limited way in rechecking some of the tributaries several weeks or months after treatment. Observations on numbers and kinds of fishes killed were also made on foot and by boat, both at 100-foot sections and sometimes continuously, immediately fol- lowing the treatment. AVhile this method gave a limited qualitative check on live fish, its best use was in a recheck following the kill. Seines and sampling gill nets were used in deep portions of the main river. This, too, was entirely qualitative. In inaccessible stretches of water, or during periods when the electric shocker was not available, sampling was performed by means of spot rotenoning and a subsequent. FIGURE 11. Part of the crew collecting fish killed by spot rotenone sampling in Forsythe Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of t
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