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浙江大学学报（农业与生命科学版）
浙江大学学报(农业与生命科学版)  2013, Vol. 39 Issue (4): 460-466    DOI: 10.3785/j.issn.1008-9209.2012.09.050
动物科学     
池塘养殖三角帆蚌的耗氧率
郑侠飞， 王岩*
（浙江大学动物科学学院，杭州 310058）
Oxygen consumption rate of freshwater pearl mussel （Hyriopsis cumingii） reared in ponds
ZHENG Xiafei, WANG Yan*
(College of Animal Sciences, Zhejiang University, Hangzhou 310058, China)
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摘要： 采用流水法现场研究在池塘养殖条件下不同规格（一龄蚌，蚌壳长分别为52和77 mm；二龄蚌，蚌壳长分别为69、87 和102 mm）三角帆蚌的耗氧率.结果表明：在水温为(22.7±0.7) ℃，pH为8.07±0.02，溶解氧（dissolved oxygen, DO）为(6.05±0.52) mg/L的条件下，蚌壳长为52、77、69、87和102 mm的三角帆蚌的单位质量耗氧率分别为（27.85±7.15）、（17.94±4.89）、（18.76±6.55）、（14.26±3.24）和（14.25±2.51） mg/(kg·h)；三角帆蚌个体耗氧率与蚌质量和蚌壳长均显著相关；在实验期间，三角帆蚌单位质量耗氧率存在昼夜差异，夜间（0:00）耗氧率高于白天（12:00）；经过3 d饥饿后三角帆蚌耗氧率未出现大幅度下降.本结果揭示池塘养殖的三角帆蚌代谢强度远远低于混养的淡水鱼类，说明三角帆蚌养殖不是鱼蚌综合养殖池塘中DO消耗的主要原因.
Abstract: Oxygen consumption rate is an important physiological parameter for evaluating the adaptation and influence of aquatic animals to the surrounding environment. The oxygen consumption rate of bivalve is dependent on various internal and external factors, such as developmental stage, body mass and sexual cycle stage, geographic latitude, season, temperature oscillation, feeding condition, oxygen saturation in water, and tidal conditions. Therefore, oxygen consumption rate of bivalve measured in situ is more accurate in reflecting metabolic intensity of the bivalve in natural habitat than that measured under laboratory condition. In this study, oxygen consumption rate of freshwater pearl mussel Hyriopsis cumingii with different mussel sizes was measured in situ using flowthrough respirometry. The mussels included oneyearold (shell lengths were 52 and 77 mm respectively) and twoyearold (shell lengths were 69, 87 and 102 mm respectively) ones. The measurement lasted for 3 days, during which the mussels were put in respirometers and aerated well water flow through the respirometers. Water samples were collected at the inlet and outlet of respirometers at 0:00, 6:00, 12:00 and 18:00 every day, and dissolved oxygen was analyzed with the Winkler method. During the measurement, water temperature was (22.7±0.7) ℃, and pH was 8.07±0.02, and dissolved oxygen concentration in water flowing into the respirometers was (6.05±0.52) mg/L. The results showed that the massspecific oxygen consumption rate decreased with the increase of body mass of the mussels. When the shell lengths were 52, 77, 69, 87 and 102 mm, the oxygen consumption rate of per unit mass was (27.85±7.15), (17.94±4.89), (18.76±6.55), (14.26±3.24) and (14.25±2.51) mg/(kg·h), respectively. The individual oxygen consumption rate ［CI/(mg/(individual·d))］ significantly correlated to mussel mass (m/g) and shell length (L/mm), and the regression equation was lg CI=0.781 lg m-0.051 (R2=0.826, n=43, P<0.05) or lg CI=2.648 lg L-4 (R2=0.815, n=43, P<0.05). Diel variation in oxygen consumption rate of per unit mass of the mussel showed that the oxygen consumption rate was 1.2 times higher at 0:00 than that at 12:00. No significant change was found in oxygen consumption rate of per unit mass of the mussel during the starvation of 3 days. The above results reveal that the oxygen consumption rate of per unit mass or individual oxygen consumption rate of fresh water pearl mussel H. cumingii are dependent on shell length or mussel mass. Compared to the fishes cocultured in commercial farming ponds, oxygen consumption rate of the mussel is lower. Therefore, respiration of the mussel is not a main source of dissolved oxygen consumption in the ponds with integrated culture of H. cumingii and fish.
出版日期: 2013-07-20
CLC:  S 966.22  
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郑侠飞
王岩*

引用本文:

郑侠飞， 王岩*. 池塘养殖三角帆蚌的耗氧率[J]. 浙江大学学报(农业与生命科学版), 2013, 39(4): 460-466.

ZHENG Xiafei, WANG Yan*. Oxygen consumption rate of freshwater pearl mussel （Hyriopsis cumingii） reared in ponds. Journal of Zhejiang University (Agriculture and Life Sciences), 2013, 39(4): 460-466.

链接本文:

http://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2012.09.050    或    http://www.zjujournals.com/agr/CN/Y2013/V39/I4/460

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