摘要: |
于1993年3-5月对采自上海市的日本沼虾的能量收支进行研究。结果表明,其日摄入能量[C,J/(g?d)]主要受水温(Ti>,℃)和体重(W, g)影响,它们的关系式为:C=26.7W-0.389e0.16T;在蜕壳间期,其援食摇蚊幼虫时摄入能量有6.2%以粪便排掉,37.0%被用于生长,1.4%作为氮和尿素被排泄,其余55.4%被呼吸代谢;随水温提高其摄入能量中用于生长的比例减小,用于呼吸的比例增加。 |
关键词: 日本沼虾 生物能量学 水温 体重 |
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STUDIES ON THE PHYSIO-ECOLOGY OF MACROBRACHIUM NIPPONENSEII. EFFECTS OF TEMPERATURE AND BODY WEIGHT ON ENERGY BUDGET |
Dong Shuanglin, Du Nanshan, Lai Wei
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Department of Biology East China Normal University, Shanghai 200062
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Abstract: |
The studies on the energy budget of M. nipponense collected from Shanghai were conducted during Mar. and May, 1993. The experimental results showed that (l) energy consumption [C, J/(g?d)]was affected by water temperature (T,°C) and body weight (W, g); the relationship was: C=26.7W-0.389e0.16T; (2) during the period of intermolting, the mean proportions of consumed energy allocated to faecal production, growth, excretion and metabolism were 6.2%, 37.0%, 1.4% and 55.4%, respectively; (3) the proportion of the energy allocated to growth reduced in response to the increase of water temperature, and that to metabolism increased in response to the increase of water temperature. |
Key words: Macrobrachium nipponcnse, Bioenergetics, Temperature, Body weight |