. Bulletin. Natural history; Natural history. 16 ZO 22 24 26 28 30 32 TOTAL LENGTH IN INCHES Fig. 20.—Length-frequency distribution of channel catfish in the commercial seine hauls at Lake Chautauqua, I 951-1 958. The graphs """I reveal the changes that occurred in the sizes ^ of catfish as a result of increased fishing pres- sure on the species. oo. 1955 (474 FISH). 12 14 ^ 18 20 22 24 26 2B 30 32 r \ / v \ 1957 (440 FISH) 4 0- / v M / \ / VS >. ?-0, 1 . 1 i 1 'Ml 8 20 22 24 26 28 30 32 1958 (407 FISH). Please note that these images are extracte
. Bulletin. Natural history; Natural history. 16 ZO 22 24 26 28 30 32 TOTAL LENGTH IN INCHES Fig. 20.—Length-frequency distribution of channel catfish in the commercial seine hauls at Lake Chautauqua, I 951-1 958. The graphs """I reveal the changes that occurred in the sizes ^ of catfish as a result of increased fishing pres- sure on the species. oo. 1955 (474 FISH). 12 14 ^ 18 20 22 24 26 2B 30 32 r \ / v \ 1957 (440 FISH) 4 0- / v M / \ / VS >. ?-0, 1 . 1 i 1 'Ml 8 20 22 24 26 28 30 32 1958 (407 FISH). 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 Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
