In order to provide early warning to mariculturists , we now conducts weekly sampling from 11 fish culture zones and fortnightly from 5 offshore stations to detect the presence of harmful algae and development of red tides 为了向养鱼户提供预警报告,本署职员每周到11个鱼类养殖区及每两周到5个离岸监测站采样分析,侦察有害藻华及红潮的出现。