1.Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources,Ministry of Education,ShanghaiOcean University,Shanghai201306, China;2.National Marine Biosciences International Joint Research Center,Ministry of Science and Technology,ShanghaiOcean University,Shanghai 201306,China
Abstract: The aggregation of juvenilemussel Mytilus coruscus was investigated atwater temperature of 13,18 and 23益,light intensity of0,10,20,60,and 200滋mol/(m2·s),and density of(5,10,20,30 and 50 individu-als per petridish to evaluate the interaction effects of light intensity,water temperature and juvenile densities on the percentages of aggregation.The results showed that the percentage of aggregation was positively correlated with the juvenile density,with high correlation coefficient(0.736),that is,the aggregation rate being increased with the increasing juvenile density.The light intensitywas shown to be negatively correlated with the percentage of aggrega-tion(P<0.0001),with correlation coefficient of-0.675,that is,the aggregation ratio being decreased with in-creasing light intensity.However,no significant correlation was observed beween water temperature and the aggre-gation rate,indicating that the water temperature did not play a crucial role in the aggregation of themussel juven-iles,with interaction influence of light intensity,water temperature and density of juveniles on aggregation of the ju-veniles.The findingswill provide a reference for understanding of the settlementmechanism of themussel.
2017, Vol. 32 
