. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. FORTY-THIRD BIENNIAL REPORT 63 were shown in the Sacramento-San Joaquin River gill net fishery- landings during the period of the report, as compared to the years 1950 and 1951. Curtailment of the area open to gill netting, imposed b>' the State Leg- islature, was responsible for the smaller landings. Re- strictions created bv the law affected an entire season for the first time in 1952. At the same time shipments of salmon into Ca
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. FORTY-THIRD BIENNIAL REPORT 63 were shown in the Sacramento-San Joaquin River gill net fishery- landings during the period of the report, as compared to the years 1950 and 1951. Curtailment of the area open to gill netting, imposed b>' the State Leg- islature, was responsible for the smaller landings. Re- strictions created bv the law affected an entire season for the first time in 1952. At the same time shipments of salmon into Califor- nia by common carrier averaged 770,000 pounds per year during 1952 and 1953, a decrease of 140,000 pounds under the two previous years. Most of the shipments are bound for Los Angeles. Sport Fishing Study Because of the ever-increasing pressure on the sal- mon population by the new sport fishery, it became apparent that more factual knowledge of its methods, catch composition, and economic as well as recrea- tional value would be required to assure proper man- agement regulations, thus assuring safeguards for future abundance of the salmon resource on which it depends. Plans formulated and approved in 1953 for a fed- eral aid project will supply the necessary minimum investigation of California's ocean salmon sport fishery. Marking and Mark Recovery In 1950 an interstate salmon marking program \\as started on the recommendation of the Pacific Marine Fisheries Commission to determine, among other things, the contributions made to the ocean fishery in different areas by salmon originating in various river systems of the Pacific Coast. The actual marking was described in the last biennial report. An obvious corollary to a marking experiment is a carefully planned mark recovery program. California, in cooperation with Oregon, Washington, British Columbia, and Alaska, has such a recovery program. Men stationed at coastal ports from Monterey, Cali- fornia, to Pelican, Alaska,
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