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. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 198 CALIFORNIA PISH AND GAME the catch fluctuated between 500,000 and 1,000,000 pounds annually (Scofield, 1931). A catch analysis stud}^ of the striped bass gill-net fishery, ranging pri- marily from the delta to San Pablo Bay, was begun in 1920 (Craig, 1930) and continued until August 14, 1931, when it became unlawful in California to fish for striped bass with nets (Clark, 1933). As a result of this study, catch-per-efi^ort values

. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 198 CALIFORNIA PISH AND GAME the catch fluctuated between 500,000 and 1,000,000 pounds annually (Scofield, 1931). A catch analysis stud}^ of the striped bass gill-net fishery, ranging pri- marily from the delta to San Pablo Bay, was begun in 1920 (Craig, 1930) and continued until August 14, 1931, when it became unlawful in California to fish for striped bass with nets (Clark, 1933). As a result of this study, catch-per-efi^ort values  Stock Photo
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Book Worm / Alamy Stock Photo

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RG383T

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7.2 MB (101.4 KB Compressed download)

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2487 x 1005 px | 21.1 x 8.5 cm | 8.3 x 3.4 inches | 300dpi

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. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 198 CALIFORNIA PISH AND GAME the catch fluctuated between 500, 000 and 1, 000, 000 pounds annually (Scofield, 1931). A catch analysis stud}^ of the striped bass gill-net fishery, ranging pri- marily from the delta to San Pablo Bay, was begun in 1920 (Craig, 1930) and continued until August 14, 1931, when it became unlawful in California to fish for striped bass with nets (Clark, 1933). As a result of this study, catch-per-efi^ort values are available from 1920 through 1931 (Table 2). TABLE 2 Average Daily Boat Catch of Striped Bass (in pounds)' Pounds Year Pounds 74 52 — 47 67 85 — 109 66 1926 58 1927 63 1928 82 1929 65 1930 68 1931 Year 1920 1921 1922 - 1923 1924 1925 1 After Claik (1933). If we compare the striped bass catch-per-effort with average annual sea surface temperatures of the 5-degree square of latitude and longi- tude off central California, we see that fishing success varies directly with temperatures (Figure 3). Q -0 AVERAGE ANtiUAL TEMPERATURE IN 5 DEGREE SO U A RE LAT 35" - 10° N , LONG 120-- 125° W X —K AVERAGE DAILY BOAT CATCH OF STRIPED BASS IN POUNDS. 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 YEAR FIGURE 3. The average commercial daily boat catch of stripecJ bass from 1920 through 1931, and average annuel sea surface temperatures in the five-degree square, lot. 35 -40 N., long. 120°-125'W. An even better correlation exists by using average annual sea surface temperatures at La Jolla (Figure 4). The latter correlation is remark- able, particularly when we consider that the temperatures are from about 450 miles south of the commercial fishing area. We would not expect sea surface temperatures at La Jolla to affect striped bass fish-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - c

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