The effects of temperature on growth rate and growth efficiency of juvenile common wolffish |
| |
| Authors: | Ian McCarthy Erlend Moksness Dimitri A Pavlov |
| |
| Institution: | (1) Division of Environmental and Evolutionary Biology, University Field Station, University of Glasgow, Rowardennan Glasgow, UK;(2) Flødevigen Marine Research Station His, Institute of Marine Research, Norway;(3) Department of Biology, Moscow State University, Moscow, Russia |
| |
| Abstract: | The effects of temperature on the survival, growth rate and growth efficiency of larval and juvenile common wolffish, Anarhichas lupus L. were studied at 0–31 days and 9–12 months post-hatching, respectively. The influence of temperature regime during egg incubation on subsequent survival and growth was also examined. The fish were reared at constant water temperatures of 5, 8, 11 and 14°C, and all groups were fed dry pellets. At age 1 month, maximum growth rates were observed at 11 and 14°C. Growth rates and survival of early juveniles were dependent upon incubation history, high growth being obtained only if rearing temperature exceeded the temperature of egg incubation. In juveniles at age 9–12 months, the relationships between temperature and growth, and temperature and growth efficiency were parabolic: the optimum water temperatures for growth (Topt.G) and growth efficiency (Topt.GE) were 11°C and 9.7°C respectively. The growth rate and growth efficiency at these water temperatures were 0.9% day–1 and 0.45 g weight gain per g food offered, respectively. © Rapid Science Ltd. 1998 |
| |
| Keywords: | Growth Growth efficiency Temperature Wolffish (Anarhichas lupus L ) |
| 本文献已被 SpringerLink 等数据库收录！ |
|
