湖北省牛山湖13种小型鱼类的能量密度
ENERGY DENSITIES OF 13 SMALL-SIZED FISHES FROM THE NIUSHANLAKE,HUBEI PROVINCE, CHINA
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摘要: 鱼类的能量密度(能值) 是指单位重量(湿重或干重) 鱼体所含能量的多少,其单位一般是kJ/g wet mass 或kJ/g drymass,它能够反映鱼类的营养状态和储能水平,是鱼类生物能量学研究的关键参数之一;同时,在对水域生态系统食物网结构和能量流动的研究中,将鱼类种群的生物量由重量单位换算为能量单位,也必须建立在已知的特定鱼类能量密度之上。国内已有不少研究对主要养殖鱼类(如草鱼、团头鲂、鳜、乌鳢等) 进行过能量密度的测定[1,2]。
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Keywords:
- Energy density /
- Small-sized fishes /
- Yangtze lake
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