| 盐度和规格对波纹巴非蛤Paphia undulate耗氧率和排氨率的影响 |
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| 引用本文： | 李俊辉,刘红礼,杜晓东,王庆恒.盐度和规格对波纹巴非蛤Paphia undulate耗氧率和排氨率的影响[J].海洋学研究,2011,29(4):95-99. |
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| 作者姓名： | 李俊辉 刘红礼 杜晓东 王庆恒 |
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| 作者单位： | 广东海洋大学水产学院,广东湛江,524025 |
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| 基金项目： | 农业部公益性行业科研专项经费资助项目，广东海洋大学博士基金资助项目 |
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| 摘 要： | 2007年3月,将采集于湛江雷州的波纹巴非蛤Paphia undulate,根据其个体大小分为A组和B组,外壳长度分别为(4.51±0.17)cm和(3.69±0.11) cm,并采用Winkler碘量法和次溴酸盐氧化法分别测定了其单位质量的耗氧率、排氨率及其氧氮比(O∶N),研究了盐度和规格对波纹巴非蛤代谢的影响.实...
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| 关 键 词： | 波纹巴非蛤 盐度 规格 耗氧率 排氨率 |
Effects of salinity and the body size on the oxygen consumption and ammonia excretion rates of Paphia undulate |
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| LI Jun-hui,LIU Hong-li,DU Xiao-dong,WANG Qing-heng.Effects of salinity and the body size on the oxygen consumption and ammonia excretion rates of Paphia undulate[J].Journal of Marine Sciences,2011,29(4):95-99. |
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| Authors: | LI Jun-hui LIU Hong-li DU Xiao-dong WANG Qing-heng |
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| Institution: | (Fishery College,Guangdong Ocean University,Zhanjiang 524025,China) |
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| Abstract: | Oxygen consumption and ammonia excretion rates as well as the oxygen-nitrogen ratio of individual Paphia undulate was measured using Winkler iodimetry and hypobromite oxidation process and the effects of salinity and the body size on metabolism of the species were studied under controlled conditions indoors.Paphia undulate was collected at Leizhou of Zhanjiang in March of 2007 and cultured for a week in the laboratory at salinity levels of 20,24,28,32 and 36.The samples were divided into two groups according to the shell length,which was(4.51±0.17) cm for Group A and(3.69±0.11) cm for Group B.The water temperature was 25 ℃.The results show that salinity and the body size of Paphia undulate both have significant effects on the oxygen consumption and ammonia excretion rates.We found that the oxygen consumption and ammonia excretion rates increased with increasing salinity from 20 to 28,but decreased from 28 to 36.At the salinity of 20,24,28,32 and 36,the oxygen consumption rate of Group B was much larger than that of Group A(P<0.05).The ammonia excretory rate of Paphia undulate increased with increasing salinity from 20 to 28,but decreased with increasing salinity from 28 to 36.At the salinity of 28 and 32,the ammonia excretory rate of Group B was much larger than that of Group A(P<0.05).However,there were no evident differences in the ammonia excretory rate between the two groups at the salinity of 20,24 and 36(P>0.05).The ratio(atomicity O∶N) of Paphia undulate ranged from 14.75 to 20.35 at the salinity levels set in the experiment. |
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| Keywords: | Paphia undulate salinity body size oxygen consumption rate ammonia excretion rate |
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