污染、藻类大爆发，以及气温上升都是影响甲壳类生物量降低的因素。
Pollution, algae blooms, and rising temperatures all have roles to play in places where where shellfish stocks are declining.
现在，即使是大的石油感兴趣的藻类。
由于传统稳定塘占地面积大、处理效率低、产生藻类等缺点，限制了其工艺的推广应用。
Traditional pond system has the shortages such as large area occupied, low treatment efficiency and overgrowth of algae, which restrict the utilization of pond treatment system.
但是，有机锡化合物在防污的同时，对海洋鱼类、甲壳类动物、软体动物和海洋藻类等生物的影响也是非常大的。
However, the organotin compounds have very obvious influence on living creatures such as Marine fish, shellfish, mollusk and Marine alga.
中国的三大湖太湖、巢湖和滇池在近年已全都有藻类爆发。
China's three main lakes, Tai, Chaohu and Dianchi, have all had algae blooms in recent years.
中国的三大湖太湖、巢湖和滇池在近年已全都有藻类爆发。
China's three main lakes, Tai, Chaohu and Dianchi, have all had algae blooms in recent years.
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