ORIGINAL RESEARCH
Chemical and Bacteriological Studies of Surface
and Subsurface Water Layers in Estuarine
Lake Gardno
Introduction
structure.
Z.J. Mudryk1*, 2. J. Trojanowski, 2. J. Antonowicz, 1. P. Skórczewski
1. Department of Experimental Biology, Pedagogical University, 76-200 Słupsk, Poland
2. Department of Chemistry, Pedagogical University, 76-200, Słupsk, Poland
2. Department of Chemistry, Pedagogical University, 76-200, Słupsk, Poland
Pol. J. Environ. Stud. 2003;12(2):199–206
KEYWORDS
ABSTRACT
This paper presents results of chemical and bacteriological examinations of surface and subsurface
water layers of estuarine lake Gardno. The obtained data indicate that there are substantial differences in
chemical compound concentrations and also bacteria number and activity between the water layers under
investigation. Particularly great differences between microlayers and subsurface water refer to concentrations
of organic phosphorus and nitrogen. It was found that bacteria number was greater in surface water
layers than in subsurface water. Significant differences among the studied chemical and bacteriological
parameters were revealed between particular sites across lake Gardno. The number of freshwater, brackish
and marine bacteria in the water of lake Gardno was up to chlorides concentration.
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