过去,冰原下的海藻于每年五月开始生长,至九月末结束,
Now, such growth starts in mid-March and continues until October.
但现在海藻的生长期已延长为每年三月中旬至十月。
These ice algae, attached to the sheet itself, account for half the mass of living things inArctic waters.
在所有北极海洋生物中,约半数生物为此类附着在冰原下方的冰藻,
Much of the rest is unattached algae, known as phytoplankton, and tiny animals, known aszooplankton.
另外还有部分浮游植物及浮游动物,
Both sorts of plankton support, directly or indirectly, the fish and mammals that live in theArctic Ocean.
而这两类浮游生物便是北极地区鱼类及哺乳动物直接或间接的养料来源。
And the plankton, too, are flourishing thanks to global warming.
此外,全球变暖也使得此类浮游生物的数量激增:
The Arctic phytoplankton bloom, which used to run from June to September, now runs fromApril to September.
北极浮游植物生长期已经由过去的六至九月延长到了四至九月。
The upshot is more plankton, farther north.
于是,随着浮游生物进一步向北部蔓延,
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