体重和温度对马氏珠母贝耗氧率和排氨率的影响.pdfVIP

第 29 卷 第 6 期 广东海洋大学学报 Vol.29 No.6 2009 年 12 月 Journal of Guangdong Ocean University Dec. 2009 体重和温度对马氏珠母贝耗氧率和排氨率的影响 栗志民，刘志刚，谢 丽，王冰荣 （广东海洋大学水产学院，广东 湛江 524025 ） 摘 要：采用室内实验生态学方法对马氏珠母贝的耗氧率和排氨率进行了研究。结果表明：在温度 13 ~ 33 ℃范围 内，马氏珠母贝的耗氧率和排氨率均与体重呈负相关，可用 Y = aW -b 表示；在 13 ~ 28 ℃温度范围内，马氏珠母贝 的耗氧率随温度的升高而增加，28 ℃时，耗氧率达最大值，温度升高至 33 ℃时，耗氧率反而下降，而排氨率在此 温度范围内则呈持续升高趋势；在 13 ~ 28 ℃温度范围内，马氏珠母贝呼吸和排泄 Q10 值分别为 1.51 ~ 2.71 和 1.03 ~ 2.73 ，且在该温度范围内，马氏珠母贝的耗氧率和排氨率的比值范围为 7.29 ~ 13.14。方差分析表明，体重、温度及 二者的交互作用对马氏珠母贝的耗氧率和排氨率均有极显著影响（P ＜ 0.01)。马氏珠母贝的日常代谢高于标准代谢， 耗氧率和排氨率平均值分别提高 40.8 ％和 59.1％。 关键词：马氏珠母贝；耗氧率；排氨率；体重；温度 中图分类号：Q178.53 文献标志码：A 文章编号：1673-9159（2009）06-0023-05 Effects of Body Weight and Temperature on Oxygen Consumption Rate and Ammonia Excretion Rate of Pinctada martensii (Dunker) LI Zhi-min, LIU Zhi-gang, XIE Li, WANG Bing-rong (Fisheries College of Guangdong Ocean University ，Zhanjiang 524025 ，China) Abstract: The oxygen consumption and ammonia-N excretion rates of Pinctada martensii (Dunker) were studied in laboratory. The results showed that the oxygen consumption and ammonia-N excretion rates of P. martensii were negatively correlated with its body weight under the test temperature 13-33 ℃, and -b their relationships could expressed by a power function as Y = aW . The oxygen consumption rate of P. martensii increased with increasing water temperature from 13 to 28 ℃, reaching the maximum at 28 ℃,