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应用生态学报 ›› 2002, Vol. ›› Issue (6): 739-742.

• 研究论文 • 上一篇    下一篇

盐度与体重对台湾红罗非鱼耗氧率的影响

雷思佳   

  1. 深圳职业技术学院生物应用工程系, 深圳 518055
  • 收稿日期:2000-06-19 修回日期:2000-09-08 出版日期:2002-06-15
  • 通讯作者: 雷思佳,女,1964年6月出生,博士,副教授,主要从事水产养殖生态学研究,发表论文17篇.Tel:0755-6731273,E-mail:leisijia@yahoo.com
  • 基金资助:
    国家自然科学基金重大项目(39430150);深圳市科技局资助项目(00009824)

Effect of salinity and body weight on the oxygen consumption of Oreochromis niloticus譕. mossambicus

LEI Sijia   

  1. Department of Biological Applied Engineering, Shenzhen Polytechnic College, Shenzhen 518055
  • Received:2000-06-19 Revised:2000-09-08 Online:2002-06-15

摘要: 在盐度为淡水、7、14、21、28和35的条件下,测定了3个体重组(1.57~4.87g,7.07~18.23g和31.50~52.41g)的台湾红罗非鱼的耗氧率,方差分析表明,盐度对台湾红罗非鱼的耗氧率有极显著的影响(P<0.01).体重范围为1.57~18.24g时,盐度7实验组的耗氧率最高,分别为0.41mgO2·g-1·h-1(1.57~4.78g)和0.34mgO2·g-1·h-1(7.07~18.23g),体重范围为31.50~52.41g时,耗氧率最高值出现在盐度35组,为0.30mgO2·g-1·h-1.耗氧率最低值也因体重范围的不同而出现在不同的盐度,体重范围为1.57~4.78g时,盐度14组的耗氧率最低,为0.28mgO2·g-1·h-1,体重范围在7.07~52.41g时,耗氧率的最低值均出现在盐度21组,其中体重范围7.07~18.23g的最低值为0.22mgO2·g-1·h,而体重范围3150~52.41g的最低耗氧率为0.13mgO2·g-1·h-1.协方差分析表明,盐度和体重对台湾红罗非鱼的耗氧率存在极显著的交互作用(P<0.01).

Abstract: The effects of salinity and body weight on oxygen consumption of Taiwan red tilapia (Oreochromis niloticus×O. mossambicus) were studied. The fish was divided into three groups by their body weight: 1.57~4.87 g (G1),7.07~18.23 g (G2) and 31.50~52.41 g (G3). The results showed that oxygen consumption at diffe-rent salinities was significantly different (P<0.01). The rates of oxygen consumption in G1 and G2 were highest,with 0.41 mg O2·g-1·h-1 for G1,and 0.34 mg O2·g-1·h-1 for G2 respectively at salinity 7‰; while G3 had highest level with 0.30 mg O2·g-1·h-1 at 35‰. The lowest oxygen consumption level appeared at diffe-rent salinities with the different body weight. The lowest level in G1,0.27 mg O2·g-1·h-1,appeared at salinity 14‰. G2 and G3 had lowest oxygen consumption level at 21‰,with 0.22 mg O2·g-1·h-1 and 0.13 mg O2·g-1·h-1 respectively. ANOVshowed that oxygen consumption was significantly affected by the interaction of salinity and body weight.

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