They deplete oxygen in waters very quickly, killing fish.

它们能够迅速吸收消耗水中的氧，导致鱼类的死亡。

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For decades, scientists warned that plastics are killing fish.

科学家几十年来一直警告说塑料会导致鱼类死亡。

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Their manure contains phosphorus, which, when it rains, runs off into lakes and estuaries, depleting oxygen, killing fish, stimulating algae overgrowth and emitting greenhouse gases.

它们的排泄物含有磷，下雨的时候，将被冲刷进入湖中和江河口，耗尽水中的氧气，杀死鱼类，刺激藻类的生长，并且释放温室气体。

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Hydroelectric dams are under assault for killing fish, biomass burning produces greenhouse gases just as fossils do, and geothermal power releases toxic ground and water contaminates.

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The July 2011 rupture of the 12-inch pipeline under the river near Laurel fouled 70 miles of the Yellowstone River's banks, killing fish and wildlife and prompting a massive, months-long cleanup.

NPR: APNewsBreak: $1.7M Penalty Proposed In Exxon Spill

For example, freshwater systems polluted with excess agricultural fertiliser will suffocate with algae, killing off fish and making water unfit for human consumption.

BBC: Nature loss 'to damage economies'