Publication Date:
2021-05-19
Description:
Variation of hydrochemical conditions, with special reference to adequacy of waters as
fish habitats, was traced based on selected hydrochemical parameters obtained during
the studies conducted from February 2013 till February 2014 year. The results were
compared with earlier studies. The sources of organic pollution were identified, and the
effect of biogenic substances on the biomass, as well as the self-purification capability
of the river, were assessed. The total suspension exceeded the requirements for waters
which are habitats of both salmonid and cyprinid fishes. Compared to the previous
years, the load of organic and inorganic matter in the waters of Wiśniówka River
increased; this may have resulted from external inflow, neighbourhood of the hatchery
but also, to a small extent, from internal supply. The high availability of nitrogen-(NNH_4
+
; N-NO_2
-
, N-NO_3
-
) and phosphorus-(total phosphorus; P-PO_4
^3-
) based biogenic
(substances favoured the biomass production, thus contributing to the increase in
organic matter load in the river.
Description:
Published
Keywords:
Aquatic
;
Environment
;
Estuary
;
Fish
;
Pollution
;
Water quality
;
Organic
Repository Name:
AquaDocs
Type:
Journal Contribution
,
Refereed
Format:
pp.690-712
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