Saprobability indicator

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Spermativity index - an indicator of the level of pollution of dead organic matter or products of its decomposition.

The term "saprobnosci" comes from the Greek word "sapros". Its definition was first given by Prag (1966) and Caspers and Karbe (1966); It was based on microbiological changes occurring in contaminated waters. Cohn in 1870 and Mez in 1898, then Kolkwitz and Marsson, developed a saprobi system, based on which they identified 4 saprobatic zones in natural waters:

Extensions of accurate water divisions in terms of pollutants, the introduction of new indicator species and the use of statistical methods to unify research results for their simple and complete interpretation have made:

Saprobability is the sum of all the decay processes of the energy supply. It can be assessed by the dynamics of the dissipation, the oxygen uptake, or the biocenosis, and in this context is the opposite of primary production. The higher the water pollution, the higher the water pollution.

Organisms constituting water pollution indicators are divided into four main groups:

The successive growth of sabotage, gives the numerical advantage of destructors over other groups in the bioceno. Conversely, self-purification leading to the reduction of saprobability leads to a steady increase in the share of manufacturers.

The saprobian zones basically corresponded to the class of purity of the three-stage classification. Bibliography

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