fivefiftyfive



Nov 18

Diatoms are generally the most important primary producers of marine            and freshwaters. By absorbing CO2 in the production            of organic material during photosynthesis  they play a decisive role            in the global carbon cycle. The  complex, species-specific pattern in            the structure of the  cell-wall, composed chiefly of silica, can be extremely             beautiful. Following death of the alga, the empty cell wall may be  deposited            in the sediments of lakes and oceans and be  preserved as a valuable            record about past environments and  climate changes; as such they are            important fossils for the  reconstruction of millions of years of the            Earth’s history.

Diatoms are generally the most important primary producers of marine and freshwaters. By absorbing CO2 in the production of organic material during photosynthesis they play a decisive role in the global carbon cycle. The complex, species-specific pattern in the structure of the cell-wall, composed chiefly of silica, can be extremely beautiful. Following death of the alga, the empty cell wall may be deposited in the sediments of lakes and oceans and be preserved as a valuable record about past environments and climate changes; as such they are important fossils for the reconstruction of millions of years of the Earth’s history.

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