Effects of Temperature and Light on Growth of Yellow Perch and Walleye Using Formulated Feed
- 30 March 1976
- journal article
- research article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 105 (2) , 254-258
- https://doi.org/10.1577/1548-8659(1976)105<254:eotalo>2.0.co;2
Abstract
Growth of age group 0 yellow perch (Perca flavescens) and walleye (Stizostedion vitreum vitreum) was studied when temperature and light conditions (photoperiod) were varied. Fish, fed formulated dry pellets, were kept for 14 wk at 16 and 22.degree. C in combination with 8 and 16 h photoperiods. Growth ranged from 151-539% in the walleye and from 79-343% in the perch during the 14 wk period. Best growth for both species was at 22.degree. C with a 16 h photoperiod. The temperature of 22.degree. C .+-. 1 is similar to the optimal temperature for growth of both fish in natural water. Growth of young walleye appeared to be temperature-dependent; that of yellow perch was more photoperiod-dependent. The influence of temperature on the walleye growth was highly significant (P < 0.01) for all photoperiods used; it was not significant for yellow perch. The effects of photoperiod on growth of walleye were not significant but they were for yellow perch (P < 0.05).Keywords
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