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In the course of the research (hydrobiological and hydrochemical) on the three mountain streams was found out that acidification was a main agent which disqualified a quality of their water. An attempt on neutralize of water of the Czerwień stream was undertaken by means of "cushions" (with chalk and without chalk) - an enclaves of the neutralized environment and with the use of model mechanism...
The paper describes results of the otolith analysis of five-bearded rockling (Ciliata mustela L.) of the Wadden Sea origin. The length growth rate of five-bearded rockling was determined. Moreover the accurate method of mathematical characterization of this fish growth was found out by means of non-asymptotic growth model.
In the course of the research (hydrobiological and hydrochemical) on the three mountain streams was found out that acidification was a main agent which disqualified a quality of their water. An attempt on neutralize of water of the Czerwień stream was undertaken by means of "cushions" (with chalk and without chalk) - an enclaves of the neutralized environment and with the use of model mechanism...
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