Age, Growth, and Maturity of Thirteen Species of Fish from Lake Oahe During the Early Years of Impoundment, 1963-68 PDF Download

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Age, Growth, and Maturity of Thirteen Species of Fish from Lake Oahe During the Early Years of Impoundment, 1963-68

Age, Growth, and Maturity of Thirteen Species of Fish from Lake Oahe During the Early Years of Impoundment, 1963-68 PDF Author: William Roland Nelson
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 30

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Book Description
The body-scale relation, calculated length, length-weight relation, age at maturity, and sex ratio of 13 major species collected at Lake Oahe from 1963 to 1968 with trap nets and bottom trawls are described. Eight species grew at a faster rate than has been recorded in other Missouri River reservoirs: goldeye, bigmouth buffalo, smallmouth buffalo, white bass, black crappie, white crappie, walleye, and freshwater drum. Four species grew at rates similar to those recorded from other Missouri River reserviors: carp, yellow perch, northern pike, and sauger. One species -- river carpsucker -- grew slower than in other waters. Growth generally was excellent for all major species in the early years of impoundment (1959-62) but then declined. Although inundation of new lands was associated with rapid growth of fishes in the early years of impoundment, water level fluctuations during the growing season had no discernable effect on growth rate. Increased average reservoir depth, which decreased the amount of littoral area, was associated with decreased fish growth.