. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. ^\. "•^....^•8'*—°-—° ^••, o^- ^8-::..^- - "^^^ °- 1958 59 60 61 62 63 64 65 YEAR 66 67 68 69 70 71 FIGURE 2. Comparison of striped bass population parameters estimated since 1958. Closed circles represent direct estimates, open circles indirect estimates. The mean survival of for the 1965-68 period was higher than the 1958-64 mean of calculated from Chadwick's (1968) data. This increase is cA'en more
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. ^\. "•^....^•8'*—°-—° ^••, o^- ^8-::..^- - "^^^ °- 1958 59 60 61 62 63 64 65 YEAR 66 67 68 69 70 71 FIGURE 2. Comparison of striped bass population parameters estimated since 1958. Closed circles represent direct estimates, open circles indirect estimates. The mean survival of for the 1965-68 period was higher than the 1958-64 mean of calculated from Chadwick's (1968) data. This increase is cA'en more pronounced using Sommani's esti- mates. His mean survival of (Table 6) for 1965-68 was higher than Chadwick's 1958-64 mean of The estimated expectation of natural death in 1965 was First year tag returns from large bass (males —24 inches and fe- males —30 inches) generally exceeded the returns on small bass, and the overall rate of female returns was consistently higher than male returns (Tables 7 and 8). Differences in the proportions returned by sex were significant for the first year returns in both years (X'loeri = ; x^i966 = ) and for all return years combined (*/^ = ; 5(^1966 = ). However returns stratified by size and sex are con- founded because females average larger than males at tagging and harvest rates are highest on large fish. To minimize size effects the re- turn rates of bass —30 inches were 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; California. Fish and Game Commission; California. Division of Fish and Game. [San Francisco, etc. ] State of California, Resources Agency, Dept. of Fish and Game
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