plankton
生态意义
• Plankton has been described as the equivalent of the grasses that grow on the dry land continents, and the comparison is an appropriate one. In potential food value, however, plankton far outweighs that of the land grasses. One scientist has estimated that while grasses of the world produce about 49 billion tons of valuable carbohydrates each year, the sea’s plankton generates more than twice as much. • 浮游生物曾被描述为生长在大陆陆地上的各种草类的 海洋对应物。这种比喻是恰当的。然而就潜在的食物价值 而言，浮游生物远胜于草类。一位科学家曾经估计，世界 上的草类每年生产大约490亿吨有用的碳水化合物，而海 洋里的浮游生物每年生产的碳水化合物多于此数的两倍。
• 可作为海流指示种，对探索海流流向有一 定帮助。 • Exploration of offshore oil resources as a sign • 可作为勘探海底石油资源的一个标志。
• FINLLY
Байду номын сангаас
渔业价值
• They drift about lazily with the currents, providing a basic food for many larger animals. • 它们随波逐流，为许多较大的动物提供了基本 的食物。 • It can be used to explore the number and distribution of fish migration routes and feeding signs finding fishing, the fishing industry has a certain significance. • 它的数量和分布可作为探索鱼类索饵洄游路线 和寻找渔场的标志，对捕捞业有一定指导意义
krill
Growing to two or three inches long, krill provides the major food for the great blue whale, the largest animal to ever inhabit the Earth.
指示作用
• Can be used as indicator species currents, currents flowing exploration of some help.