【摘要】 为研究链状裸甲藻(Gymnodinium catenatum)对翡翠贻贝(Perna viridis)摄食的影响，设置试验组和对照组，采用链状裸甲藻和中肋骨条藻(Skeletonema costatum)投喂翡翠贻贝，开展1 h和长期(38 d)清滤率试验。结果表明：翡翠贻贝无论是摄食产毒藻或无毒藻，随着藻细胞密度的升高，清滤率的变化均呈先升高后降低的趋势，峰值出现在藻细胞密度接近赤潮基准密度时。试验组和对照组翡翠贻贝清滤率的最高值分别为(3.04±0.02)、(3.70±0.03)L/(g·h),与对照组相比，试验组翡翠贻贝清滤率显著下降(P<0.05),表明链状裸甲藻对翡翠贻贝的摄食产生了影响。长期滤食链状裸甲藻的翡翠贻贝的清滤率基本保持在初始水平，与短期滤食相比无显著变化。更多还原

【Abstract】 The present study was conducted to investigate the impact of G.catenatum on the feeding behavior of P.viridis. An experimental group fed with G.catenatum and a control group fed with Skeletonema costatum were established. Short-term(1 hour) and long-term(38 days) clearance rate experiments were carried out. The results showed that the clearance rate of P.viridis, whether feeding on toxic or non-toxic algae, as the densty of algae cells increased, initially increased and then decreased, reaching the peak when the algal cell density approached the threshold density for red tide. The highest clearance rates observed in the experimental and control groups were(3.04±0.02) and(3.70±0.03) L/(g·h), respectively. Compared to the control group, the clearance rate of P.viridis in the experimental group exhibited a significant decrease(P<0.05), indicating that G.catenatum had an influence on the feeding behavior of P.viridis. Furthermore, the long-term filtration did not cause significant changes in the clearance rate, which remained relatively stable at the initial level.更多还原