. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. Sampling to determine abundance of young striped bass in the Sacra- menio-San Joaquin delta area. (Fish and Game Photo) While fishing lor striped bass in the Sacramento River off Port Chicago, Catalino Diangson of San Francisco hooked into this 277-pound sturgeon. Victory over this 8-foof, 5-inch giant required 1 hour and 20 minutes. (San Francisco News Photo). Life History Studies Successful management of a fishery must be based on a
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. Sampling to determine abundance of young striped bass in the Sacra- menio-San Joaquin delta area. (Fish and Game Photo) While fishing lor striped bass in the Sacramento River off Port Chicago, Catalino Diangson of San Francisco hooked into this 277-pound sturgeon. Victory over this 8-foof, 5-inch giant required 1 hour and 20 minutes. (San Francisco News Photo). Life History Studies Successful management of a fishery must be based on a thorough understanding of the biology of the species concerned. Consequently, a major portion of the catfish study program was directed toward gain- ing an understanding of catfish life histories. Emphasis was placed on study of the biology of the white catfish in the Delta, since the Delta fishery is the largest and most important in the State. By the end of the biennium, data on age and growth, food habits, size at maturity, reproductive characteristics and diseases had been obtained. The age and growth and food habits of channel catfish in the Colorado River was studied in order to evaluate the efi^ects of the experimental introduction of the threadfin shad into that important river. The catfish project started this work and it is being con- tinued under the warmwater research program. \'aluable facts about the food habits and age and growth of catfish in Clear Lake have also been ob- tained during the course of project activities. STRIPED BASS AND STURGEON The 1954-56 biennium coincides with the first two years this federal aid project has been in operation. The striped bass fishery is an extremely valuable one,. 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; Califo
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