Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Winter Temperature Requirements for Maturation and Spawning of Yellow Perch 'Perca flavescens' (Mitchill).
Author Jones, B. R. ; Hokanson, K. E. F. ; McCormick., J. H. ;
CORP Author Environmental Research Lab.-Duluth, Minn.
Year Published 1977
Report Number EPA/600/J-77/126;
Stock Number PB-283 816
Additional Subjects Perch ; Temperature ; Survival ; Reproduction(Biology) ; Winter ; Maturation ; Seasonal variations ; Perca flavescens ; Spawning
Library Call Number Additional Info Location Last
NTIS  PB-283 816 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 5p
Groups of sexually mature yellow perch were held during the winter at constant temperatures of 4 and 6C for 123, 143, 164, 185, and 213 days, and of 8 and 1C for 157, 201, and 241 days. The winter temperatures were raised to 20C at a rate of 2C per week at the end of each duration. The greatest reproductive success occurred in the group exposed to 4C for 185 days at a median spawning temperature of 12C. High spawning temperatures were associated with shorter durations and lower reproductive success. Reproductive success was lower at maturation temperatures above 4C and at durations departing from 185 days.