Those researchers, led by Wajih Naqvi and Victor Smetacek, created a bloom of phytoplankton by fertilising an area of 300 square kilometres with six tonnes of iron sulphate, which dissolves in water.

这些由Wajih Naqvi和维克多•斯莫塔希克领导的研究者给300平方公里的海域里面投加了6吨的可溶于水的硫酸铁作为浮游生物的肥料已让他们生长。

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At its peak, that bloom covered 1, 930 square miles, making it more than twice as big as the freshwater sea's second-biggest bloom on record, which happened three years earlier.

WSJ: Report predicts ever-bigger Lake Erie algae blooms