Since these dense lower waters don't mix with the warmer freshwater above, it can take four months for tropical storms to fully circulate oxygenated water back into the gulf.

因为这些高密度且位置较低的水不会和上方较温暖的淡水混在一起，热带暴风雨可能要花四个月的时间才能将带氧的水透过循环完全带到墨西哥湾。

And phytoplankton are essential for ocean ecosystems, absorbing carbon dioxide, oxygenating the water and feeding the creatures higher up the food chain.

浮游植物对海洋生态系统至关重要，它们吸收二氧化碳、为水充氧并为食物链上游的生物提供食物。

In the warehouse they're bagged and sealed – this three inch fish in about a pint of oxygenated water. A gallon, as some legislation would require, could increase shipping costs eight-fold, Nahacky estimates.

在仓库里，他们被装袋和密封——这三英寸的鱼在大约一品脱的含氧水中。Nahacky估计，正如一些立法所要求的那样，每加仑汽油可能会增加八倍的运输成本。

Every 5 to 10 minutes the tank was flushed with oxygenated water, the biologists then measured how much oxygen was consumed between flushes to figure out how much the fish were breathing.

每隔 5 到 10 分钟用含氧水冲洗水箱，然后生物学家测量两次冲洗之间消耗了多少氧气， 以确定鱼的呼吸量。