The Arctic phytoplankton bloom, which used to run from June to September, now runs from April to September.

以前，北极浮游生物的大量繁殖期是六月到九月，而现在繁殖期则早在四月就开始了，直到九月才结束。

Scientists have already used chlorophyll fluorescence to monitor harmful phytoplankton blooms, and track the effects of drought in the Amazon and Great Plains.

科学家们已经在用叶绿素荧光来监控有害的浮游植物的野蛮生长，并且还用它来追踪干旱对亚马逊和大平原的负面影响。

Then, a few million years ago, changing ocean currents brought tons of nutrients up from the depths, which fueled huge, localized phytoplankton blooms, which in turn attracted enormous concentrations of scrumptious zooplankton.

然后，几百万年前，不断变化的洋流从深处带来了大量的营养物质，这助长了巨大的、局部的浮游植物大量繁殖，这反过来又吸引了大量美味的浮游动物。