THE MAIN NUTRIENTS CONCENTRATION FROM INTRA TISSUE WATER OF BENTHOS ORAGANISMS FROM MURES BASIN
Keywords:
intra tissue water, nutrient, benthonic organismsAbstract
In the hydrographic basin of Mures river, aboard an altitude gradient, were taken
samples of intra tissue waters from benthonic organisms for research the nutrients
concentrations. The reference point was represented by a dairy caw farm where the
agricultural fields of this is applied the organic fertilization with manure. The intra
tissue water samples from benthonic organisms were prelevated in spring and
autumn and the prelevate dates are the same with spread manure dates. At the intra
tissue water level, concentrations value of N and P are bigger at the second data
prelevations than first data prelevations and we can conclude that the benthonic
oligochetas activity increase, more than, they density increase in Mures basin. The
high concentrations of NH4
show as that Mures basin is a zone characterized by high degree
of anoxia and this fact is supported by significant differences between seasonal prelevations.
The explication is the manifestation to the cumulated and at distance effects of
introduction in water to some organic products, very probably washed from
neighborhoods agricultural field. Were calculated values of Student test for seasonal
comparisons and were founded significant differences between nutrients
concentration values at first and second prelevations.
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