- This is a halocline -
这里是盐跃层 - a meeting of fresh and salt water.
淡水与咸水的交汇处 - Fresh water from the jungle flows over the heavier salt water from the sea.
咸水来自海洋 比重较重 来自丛林的淡水在其上方流动 - The saltwater layer is extremely low in oxygen
咸水层的含氧量很低 - making it a particularly difficult place for animals to live.
对动物而言是极为困难的生境 - Yet some have managed it,
但有些动物却能在此生存 - like the remiped, one of the most ancient of all living crustaceans.
例如桨足虫——一种最古老的甲壳动物