| 摘要: |
| 在实验室条件下,用流水装置测定了体质量、昼夜节律、藻密度和流速对沟纹巴非蛤（Paphia exarata Philippi）滤水率的影响。结果表明:（1）单位体质量滤水率随个体体质量的增加而减小,二者之间呈负幂函数关系:Rf’=0.657w-0.6501。（2）在1个昼夜里,测定了00:00、04:00、08:00、12:00、16:00、20:00共6个时间点的滤水率,滤水率在00:00时最小、08:00时最大,二者差异显著（P<0 |
| 关键词: 沟纹巴非蛤(Paphia exarata Philippi) 滤水率 体质量 昼夜节律 流速 饵料密度 |
| DOI： |
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| 基金项目:科技部社会公益基金资助项目(2004DIB3J074) |
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| Study on the filtration rate of Paphia exarata Philippi |
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| Abstract: |
| The filtration rate of Paphia exarata was determined by flowing tanks. The results are shown below:（1） The relationship between filtration rates and individual weight shows a exponential function (Rf=0.657w-0.349 9, Rf’=0.657w-0.6501).（2） The maximal and minimal filtration rate occurred at 24h interval period. The maximum was at 08:00,which was significantly higher than the minimum at 00:00 （P<0.05）.（3）The filtration rate increased with higher concentrations of diet but decreased if the concentration exceeded a definitive value （（4.5±0.11）×104 cell/mL）.（4） The filtration rate increased with the increase of the flowing velocity in the range of 3.6～9.0 L/h but it increased no significantly if the flowing velocity exceeded 7.2 L/h. |
| Key words: Paphia exarata Philippi filtration rate individual weight day and night rhythm flowing velocity diet concentration |
