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 exarataPhilippi)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:R_f'=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<0.05),与其它时刻的滤水率无显著差异。(3)在一定藻密度范围内,滤水率随着藻密度的增加而增大,当藻密度超过(4.5±0.11)×10~4个/mL 之后,滤水率反而降低。(4)在3.6～9.0 L/h 的流速范围内,滤水率随流速的增大而增大,当流速达到7.2 L/h 后滤水率增加不显著(P>0.05)。
The filtration rate ofPaphia 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^0.3499, R f＇=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）× 10^4cell/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.
出处
《海洋科学》
CAS
CSCD
北大核心
2008年第9期42-45,56,共5页
Marine Sciences
基金
科技部社会公益基金资助项目(2004DIB3J074)
