|
|||||
|
|
Lipid and reproductive cycles of bluegills (Lepomis macrochirus) exposed to 35 years of elevated environmental temperatures |
|
| Authors: | Robert U. Fischer J.D. Congdon C.D. Difonzo J.M. Aho |
| Affiliation: | a Department of Zoology, Eastern Illinois University, Charleston, IL 61920, USA b Savannah River Ecology Laboratory, Drawer E, Aiken, SC 29802, USA c Department of Entomology, Michigan State University, East Lansing, MI 48824, USA d Department of Biology, Auburn University at Montgomery, Montgomery, AL 36117, USA |
| Abstract: | 1. We studied bluegills to compare how thermal perturbation affected lipid dynamics and reproductive cycles of fish from heated (Pond C) and normothermic (Par Pond) sites. 2. Bodies of bluegills contained over 90%, and gonads and livers 10% of the non-polar lipids. 3.Overall, the percent body lipids of bluegills from the heated pond was twice as high (12.4%) as that of Par Pond bluegills (6.6%). 4. During a prolonged reactor down period, when both ponds were normothermic, body lipids of bluegills from Pond C and Par Pond increased at a rate of approximately 3 and 1% of body mass per week, respectively. 5. Juveniles from Pond C had higher percent stored lipids than did adult males or females. 6. Lipid cycling in Par Pond bluegills was seasonal, whereas Pond C bluegill lipid cycles corresponded to long reactor down periods. |
| Keywords: | Cooling reservoir lipid cycles of bluegill from a heated and normothermic ponds reproduction thermal environment |
| 本文献已被 ScienceDirect 等数据库收录！ | |