| 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
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-283 816 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
5p |
| Abstract |
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. |
| Supplementary Notes |
Pub. in Proceed. of World Conference, Towards a Plan of Actions for Mankind, v3 Biological Balance and Thermal Modifications, p189-192 1977. |
| NTIS Title Notes |
Journal article. |
| PUB Date Free Form |
1977 |
| Category Codes |
6C; 6F; 98F; 57H |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/03 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323745042 |
| Origin |
NTIS |
| Type |
CAT |
