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Anthropogenic impact on quantitative differentiation of nitrogen cycling bacteria in waters of the Drwecka River

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Golas I., Zmyslowska I., Harnisz M., Korzekwa K., Skowronska A., Teodorowicz M., Gorniak D., Dudziec E.

Polish Journal of Natural Sciences

2008

tom 23

nr 3

667-680

Water in the Drwęca River has been monitored in terms of differences in counts of bacteria which are active in transformations of nitrogen compounds depend on various man-made activity. In 2000–2001 samples of waters were assayed for counts of proteolytic, ammonifying, AOB, NOB, N-NO₃ to N-NO₂ reducing bacteria, denitrifying bacteria as well as anaerobic (Clostridium pasteurianum) and aerobic (Azotobacter sp.) atmospheric nitrogen binding bacteria, which differed within several orders (0–10⁵ cfu 1 cm⁻³ or MPN 100 cm⁻³) depending on the analysed physiological group of bacteria, sampling site or date. Statistically significant differences in counts of particular groups of microorganisms in the analysed water samples collected from the Drwęca River proved between the sampling dates only confirm that the river may be seasonally polluted by domestic sewage from towns and villages located in the river catchment or be associated with the cyclic nature of fisheries and/or agricultural production.

Ograniczanie wyników

1 Polish Journal of Natural Sciences

1 Dudziec E.

1 Golas I.

1 Gorniak D.

1 Harnisz M.

1 Korzekwa K.

1 Skowronska A.

1 Teodorowicz M.

1 Zmyslowska I.

1 2008

Wyniki wyszukiwania

Anthropogenic impact on quantitative differentiation of nitrogen cycling bacteria in waters of the Drwecka River