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The investigations of the microflora and some groups of microfauna in the protected ecosystem of Zasavica [Serbia, Yugoslavia]
1998
Ratajac, R. (Poljoprivredni fakultet, Novi Sad (Yugoslavia)) | Rajkovic, D. | Stojkovic, S. | Bobic, M.
The protected natural goods of the swamp Zasavica is situated in the north part of Macva (Serbia, Yugoslavia). It is parallel to the flow of the Sava river, which leads to the fact that it used to be the riverbed of the Sava and also of the Drina river. It is interesting for its variety of the plant and animal species. The investigations have been done during autumn period 1997, when the investigated groups were the most heterogeneous. It included algae, Rotatoria,Cladocera, Copepoda and Hydracarina. Among algae, Bacillariophyta were dominant. Among all the investigated groups Rotatoria were the most heterogenous, with great number of the species that are rarely present. Also, some Cladocera species were rare. The estimation of the water quality is given according to the bioindicator species.
اظهر المزيد [+] اقل [-]Phosphatase activity and microbiological parameters as indicators of the canal waters pollution by the oil industry wastewater [Yugoslavia]
1998
Petrovic, O. | Radnovic, D. | Gajin, S. | Matavulj, M. | Trivunovic, V. (Prirodno-matematicki fakultet, Novi Sad (Yugoslavia). Institut za biologiju)
On the basis of the enzymatic (phosphatase) activity and microbiological analysis as well, the influence of the oil refinery "Vital" - Vrbas (Serbia, Yugoslavia) wastewater to the recipient DTD (Danube-Tisza-Danube) canal water from the microbiological point of view was determined. In addition the efficiency of the factory's waste water purification plant was estimated. The obtained results of the complex microbiological-enzymological analyses indicated a good water quality at the point where the refinery's water supplies plant is situated (site 1). Very low water quality was determined downstream (site 4) and upstream (site 2) from the inflow of the refinery's wastewater's inflow. The later results might indicated the influence of an unknown pollutant in the region. However, the obtained O/H index value suggests that the self-purification ability of the canal waters is still preserved.
اظهر المزيد [+] اقل [-]Spatial and temporal dynamics of cellulolytic microorganisms in Vlasina [water] reservoir [Serbia, Yugoslavia]
1998
Comic, Lj. | Curcic, S. | Rankovic, B. (Prirodno-matematicki fakultet, Kragujevac (Yugoslavia). Institut za biologiju)
Processes of transformation of organic matter are slowed down so that cellulose which originates from cell walls of Sphagnum is retained long in unchanged form. The highest valises of cellulolytic bacteria (0.33-126.67 bact/ml) were recorded in October. In most cases slightly active species were found, Cellvibrio fulvus was dominant. The participation of fungi in cellulolytic community was significant 23-31.5.
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