Fertilizer runoff is responsible for a vast "dead zone," an oxygen-depleted region where little or no sea life can exist, in the Gulf of Mexico.

对大面积“死水区域”来说化肥残留物是罪魁祸首，在墨西哥湾，氧气耗尽的死水区域几乎没有海洋生物生存。

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The report also puts a priority on improving water quality, particularly on countering the giant dead zone that develops in late spring in the Gulf of Mexico.

报告也很重视水质的提高，尤其是应对墨西哥海湾晚春时节出现的巨大死区。

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Dead, sinking phytoplankton cells are the primary means of removing carbon from the ocean's euphotic zone near the surface.

死去的下沉浮游植物细胞的主要作用是吸收接近海洋表面透光层中的碳。

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If implemented, the Baltic Deepwater Oxygenation (Box) project would require around 100 pumping stations built around the Baltic Sea to transport oxygen deep underwater to counteract the declining amounts of oxygen and prevent the growth of the dead zone.

CNN: Can oxygen pump breathe life into ocean 'dead zone?'

Attempts to reduce the waste being dumped into the Baltic have so far failed to stop the growth of the dead zone, now equivalent to around one and half times the size of Denmark.

CNN: Can oxygen pump breathe life into ocean 'dead zone?'

Farmers within a 1.8 mile (3km) protection zone of Cellardyke - where the infected dead swan was found - were ordered to move their birds inside.

BBC: Chicken roast dinner