Abstract:The quantity of fouling organism on scallop shell and the effects of the mass of artificial fouling on growth and survival of C.farreri was studied.Sixty scallops were randomly sampled from September to November, 2007, at monthly intervals.Artificial fouling (cement) weighing 0.5, 1, 2 and 3 times the mass of the upper valve were fixed to the upper valve of C.farreri Scallops with no artificial fouling served as the controls.Survival and specific growth rate (SGR) of shell length,dry mass of muscle and remaining soft tissue were examined after 60 d longline cultivation in Sanggou Bay.From September to November,the amount of shell fouling decreased from 1.47 g to 0.49 g,and again increased to 2.09 g in November.There were no significant differences in growth parameters and survival between the treatment and control groups,indicating that artificial fouling did not detrimentally affects the growth and survival of C.farreri. In Sanggou Bay, even in summer season when the natural fouling was heaviest,the mass that developed on scallop shells was much lower than the experimental levels. Thus, it is unlikely that the mass of natural occurred fouling organisms on the shell would negatively affect the growth and survival of C.farreri.
