. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 158 CALIFORNIA FISH AND CAME 100 >» w 90 g 80 c o (0 0) 70 60 Season length Daily bag limit. D 0) 6 fi> FIGURE 3. 1950-54 1955-59 1960-64 1965-69 1970-74 1975-79 1980-84 1985-87 Time Periods Average season lengths and daily bag limits for duck hunting in California by 5-year periods from 1950-87 (Bartonek et al. 1980). METHODS Harvest Areas Waterfowl harvest data were obtained from the records of 28 PHAs on which managers operat
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 158 CALIFORNIA FISH AND CAME 100 >» w 90 g 80 c o (0 0) 70 60 Season length Daily bag limit. D 0) 6 fi> FIGURE 3. 1950-54 1955-59 1960-64 1965-69 1970-74 1975-79 1980-84 1985-87 Time Periods Average season lengths and daily bag limits for duck hunting in California by 5-year periods from 1950-87 (Bartonek et al. 1980). METHODS Harvest Areas Waterfowl harvest data were obtained from the records of 28 PHAs on which managers operated check stations or conducted routine bag checks (Table 1, Figure 2). PHAs included NWRs, state Wildlife Areas (WAs), and cooperative areas (Co-ops) leased by the California Department of Fish and Game (CDFG). We grouped the areas into 6 geographic regions: Northeast, Sacramento Valley, Suisun Marsh, San Joaquin Basin, Tulare Basin, and Imperial Valley. Harvest data were not available for coastal public hunting areas. Opportunities to hunt waterfowl on these areas fluctuated annually because: (i) WAs and NWRs were sometimes closed to hunting; (ii) tracts open to hunting within a specific hunting area varied; and (iii) potential hunting capacity varied because of changes in allowable hunting methods (, blinds, free roaming) and flooded acreage. Data Collection Numbers and species of ducks killed and total numbers of hunter visits per year were obtained for each area. We define a hunter visit as 1 individual visting a PHA 1 day to hunt waterfowl. CDFG employees recorded these data at check stations on all areas except Tule Lake, Lower Klamath, and Modoc NWRs. Fish and Wildlife Service (USFWS) employees conducted bag checks of about 80% of the hunters (10% before 1975) on Tule Lake and Lower Klamath NWRs (E. H. McCollum, pers. comm.) and of about 50% of the hunters on Modoc NWR (E. C. Bloom, pers. comm.). Total car counts and average number of hunters per car were made
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