温度和个体大小对单齿螺耗氧率和排氨率的影响  

Effects of temperature and body size on oxygen consumption rate and ammonia excretion rate of Monodonta labio

作　　者：朱爱意[1] 谢佳彦[1] 陈金海[1] 

机构地区：[1]浙江海洋学院海洋科学学院,浙江舟山316004

出　　处：《生态科学》2007年第3期232-236,共5页Ecological Science

基　　金：浙江省重大科技攻关项目(编号2006C13092)

摘　　要：采用静水法测定了不同温度、不同个体大小的单齿螺耗氧率和排氨率。结果表明:在16-33℃的实验温度范围内单齿螺的耗氧率(RO)和排氨率(RN)与软体部干重(W)都呈负相关,它们之间关系可以分别用幂函数RO=aW-b和RN=a1W-b1表示。16～29℃温度范围内单齿螺的耗氧率和排氨率均随温度的升高而增加,29℃时耗氧率和排氨率达到最大值,当温度继续升高超过29℃后,耗氧率和排氨率则随温度的升高而下降,耗氧率、排氨率与温度之间呈显著的指数函数关系RO=cedT和RN=c1ed1T;不同个体大小单齿螺的O:N比在16～20℃时较大,Q10取值范围0.56-3.74,平均值为1.64。方差分析表明,温度、软体部干重对单齿螺的耗氧率和排氨率均有极显著的影响(P<0.01)。Effect of temperature and body size on oxygen consumption rate and ammonia excretion rate of Monodonta labio were determined using hydrostatic method. The results showed that there were negative relationship between dry weight of soft tissue （W） and oxygen consumption rate （RO） or ammonia excretion rate （RN） of Monodonta labio at 16-33 ℃. The relationships between dry weight and RO and between dry weigh and RN could be expressed by a power function as： RO=aW^-b and RN= a1W^-b1. The oxygen consumption rate and ammonia excretion rate of Monodonta labio increased with increasing water temperature and reached the maximum at 29 ℃. The relationships between water temperature and Ro and between dry weigh and RN could be expressed by an exponential function as： RO=ce^dT and RN = c1e^d1T. The highest RO /RN （atomicity O/N） was observed at the temperature between 16-20 ℃. The Q10 value ranged from 0.56 to 3.74. ANOVA showed that the RO and RN were significantly affected by water temperature and dry weight of soft tissue （P〈0.01）.

关 键 词：单齿螺 耗氧率 排氨率 温度 体重 

分 类 号：Q959.21[生物学—动物学]