---

作 者 ：赵文,张琳,霍元子

期 刊 ：生态学报 2005年 25卷 7期 页码：1549~1553

关键词：西藏拟溞；盐度；温度；体长；个体耗氧率；比耗氧率；

Keywords:Daphniopsis tibetana, salinity, temperature, body length, individual oxygen consumption rate, specific oxygen consumption rate,

摘 要 ：在实验室内研究了盐度(S=5、10、15、20和25)、温度(T=3、8、14、20和22℃)和体长(L=0.83、1.25、1.49、1.87和2.42mm)对西藏拟耗氧率的影响。结果表明,在试验盐度内该的个体耗氧率(IO)和比耗氧率(SO)均随盐度(S)升高而升高,其回归方程分别为IO=0.0014S+0.0126和SO=0.115S0.5612,数值范围为0.02～0.045μg/(indh)和0.31～0.67μg/(mg·h)。个体耗氧率和比耗氧率在温度试验中有同样的趋势,回归方程分别为IO=0.0049e0.1574T和SO=0.0678e0.1605T,数值分别为0.0076～0.13μg/(ind·h)和0.10～1.71μg/(mg·h)。体长试验中个体耗氧率随体长增大而增大,而比耗氧率则降低,回归方程分别为:IO=0.0545L2.5962和SO=-0.2059L+0.7908,数值范围为0.036～0.68μg/(ind·h)和0.38～0.63μg/(mg·h)。讨论了盐度、温度和体长对西藏拟耗氧率的影响。

Abstract:Daphniopsis tibetana Sars (Crustacea: Cladocera: Daphniidae) is a low-medium saline lake cladoceran showing wide but patchy distribution in plateau saline lake in Asia. In China, D. tibetana widely distributes in saline waters in Tibet, Qinghai, Xinjiang. In the present paper, D. tibetana were collected from Lake Namuka Co. The animals can be live in diluted seawater via acclimatization. Effects of salinity, temperature and body length on oxygen consumption of D. tibetana were studied under experimental con...

---