| Main Title |
Temperature Requirements of Some Percids and Adaptations to the Seasonal Temperature Cycle. |
| Author |
Hokanson., Kenneth E. F. ;
|
| CORP Author |
Environmental Research Lab.-Duluth, Monticello, Minn. |
| Year Published |
1977 |
| Report Number |
EPA/600/J-77/060; |
| Stock Number |
PB-276 241 |
| Additional Subjects |
Fresh water fishes ;
Perch ;
Temperature ;
Adaptation ;
Reproduction(Biology) ;
Life cycles ;
Growth ;
Seasonal variations ;
Temperature gradients ;
Animal migrations ;
Seasonal variations ;
Maturation ;
Survival ;
Canada ;
Reprints ;
Stizostedion vitreum ;
Stizostedion canadense ;
Perca flavescens ;
Perca fluviatilis ;
Stizostedin lucioperca ;
Gymnocephalus cernua
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-276 241 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
29p |
| Abstract |
Temperature requirements are reviewed for three North American percids (walleye, Stizostedion vitreum; sauger, S. canadense; and yellow perch, Perca flavescens), three Eurasian percids (perch, P. fluviatilis; pikeperch, S. lucioperca; and ruffe, Gymnocephalus cernua), and nine cohabitant fish species for comparison. Whole-organism responses are described for each species--primarily concerning reproduction, growth, survival, and activity. The percids are classified as temperature mesotherms and hey are arranged in order of their thermal requirements as follows: pikeperch perches and ruffe sauger walleye. Perca and Stizostedion spp. are annual spawners with synchronous oocyte growth during fall through winter, culminating in spring spawning. Maturation occurs below 12(C). Spawning occurs from late February to early July at 2-26(C) over their geographic ranges. Oocyte growth of ruffe is asynchronous, accelerated by warm temperatures; batch spawning occurs over a prolonged period, from mid-April through July at 11-18(C). Physiological optima range from 22(C) for sauger and walleye to 25(C) for perch and 27(C) for pikeperch. The ultimate upper incipient lethal temperatures of percids range from 29 to 35(C), depending on species and experimental conditions. |
| Supplementary Notes |
Pub. in Jnl. of the Fisheries Research Board of Canada, v34 n10 p1524-1550 1977. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Temperature Requirements of Some Percids and Adaptations to the Seasonal Temperature Cycle. |
| PUB Date Free Form |
27 May 77 |
| Category Codes |
6C; 6F; 98F; 57Z; 57H |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/03 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323730682 |
| Origin |
NTIS |
| Type |
CAT |
