World Oceans

Posts Tagged ‘планктон’

Hydrosphere – the water shell of the Earth . It includes all the chemically bound water, regardless of the state of aggregation. Most of the hydrosphere amount of water oceans (96.6%), 1.7% – this isground water , about the same falls on glaciers and permanent snow and less than 0.01% – the surfacewater of land ( rivers , lakes , swamps ). A slight amount of water contained in the atmosphere and is a part of all living things. The hydrosphere is one. Its unity in the common origin of all the natural waters of the Earth’s mantle, in the unity of their development, the spatial continuity in the relationship of natural waters in the world’s water cycle .
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rich and diverse flora and fauna of the oceans and seas is classified as genus, species, habitat, etc. The most important quantitative characteristics are concepts such as biomass and biological productivity. Biomass – a total weight of organisms per unit area or volume. The biological productivity that characterizes the reproduction of living organisms in the oceans, which in many respects similar to the more familiar four land "the concept of " performance ". Plankton, along with bacteria is the most Coast population, both in number and biomass. The most important role is played here with very high rates of reproduction of phytoplankton. Annual "crop " of phytoplankton in the thousands Blue Ocean Planet nivah times greater than the total mass of phytoplankton, while the harvest of the earth years of vegetation by increased only 6% of their biomass. But most importantly, the phytoplankton has an amazing ability to create an organic material is exposed to sunlight because of their content in their cells, a special substance – chlorophyll. At the same time as a result of this process is allocated as needed for all life on earth with oxygen. Given the enormous biomass and productivity of phytoplankton, the oceans can be called a big "fabric of life. " Y "factory " instead of oppressing and reeking of smoke emits life-giving oxygen.