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Deperissement des forets et pollution atmospherique: ce que nous avons appris (Programme DEFORPA 1984-1991).
1992
Landmann G.
Acidity status of surface waters in Massachusetts.
1992
Walk M.F.I. | Godfrey P.J. | Ruby A. III | Zajicek O.T. | Mattson M.
Contribution to the evaluation of usability of surface water from the "Gornji Banat" meliorated region [Serbia, Yugoslavia] for irrigation
1998
Vidovic, M. (Zavod za zastitu zdravlja, Kikinda (Yugoslavia)) | Cupic, S. | Kilibarda, P. | Medarevic, S.
The paper summarizes the results on the quality of surface water of the Gornji Banat region (Serbia, Yugoslavia). Based on different classifications, statistic data processing was made and the conclusions on the usability of the water for irrigation are given. According to the results obtained there is an urgent need for efficient measures to improve the quality of canal water and the control the polluters.
显示更多 [+] 显示较少 [-]Biomanipulation in eutrophication process control
1998
Maletin, S. (Univerzitet u Novom Sadu, Novi Sad (Yugoslavia). Poljoprivredni fakultet) | Djukic, N. | Miljanovic, B. | Teodorovic, I.
Amplified and accelerated eutrophication process is a characteritic of a whole variety of small and medium-sized water-bodies, such as channel systems, microreservoirs, ponds, lakes and bank regions of many even bigger ecosystems. During the process, in relatively short period of time, the upper capacity limit of a certain biotop is far too exceeded, which leads to reduced ability of ecosystem's autopurification. As a consequence of such degradation, ecosystem faces a serious discrepancy between members of a biocenosis e.g. in ration producers/consumers/decomposers, which, in the end, causes destruction, e.g. dystrophy of the hydroecosystem. The introduction of diverse fish communities, can, therefore, be one of the basic measures for enabling a sustainable trophic stability, in a sense of keeping a dynamic balance. This measure includes carefully planed fish community - it should consist of three basic components of a trophic food web (planktivore and macrophytovore, bentivore and carnivore). Apart from enabling certain biodiversity considering particular fish species (both quantitative and qualitative), care must be inevitably taken of age structure, as well as fish stock and fishing dynamic, concerning the number, quantity and age.
显示更多 [+] 显示较少 [-]Summer aspect of zooplankton and microzooperiphyton of some water course in the Republic of Srpska [Bosnia and Herzegovina]]
2001
Bobic, M. (Institut za vode Republike Srpske, Bijeljina - Republika Srpska (Bosnia and Herzegovina))
In the scope of the Program of surface water quality examinations in the Republic of Srpska (Bosnia and Herzegovina), hydrometric measurements and water quality examinations had been realized, where zooplankton and microzooperiphyton researches have been performed. Sampling were performed in the period from 6th to 20th May 2000, at 13 water courses with taken in total 21 samples. In qualitative structure of examined fauna, Rotatoria, Cladocera and Copepoda groups were treated, with ascertained in total 109 taxa from 41 genus. In qualitative structure periphyton taxa are predominant. On the basis of bioindicatory species structure it is noticed that dominant species are oligasaprobic and oligobetamesosaprobic character.
显示更多 [+] 显示较少 [-]"Black points" of surface water quality in Vojvodina [Serbia, Yugoslavia]
2001
Savic, R. | Belic, S. | Belic, A. (Poljoprivredni fakultet, Novi Sad (Yugoslavia). Institut za uredjenje voda)
The paper deals with evaluation of surface water quality in Vojvodina (Serbia, Yugoslavia) by integral methods. The aim was to emphasize streams and localities where water quality is insatisfied condition longer period of time. The profiles, chosen according to continuity of quality problems which are not results of short excesses, rightfully could be named as a "black points".
显示更多 [+] 显示较少 [-]Metal pollution index precision assessed from toxicity tests
2001
Teodorovic, I. (Univerzitet u Novom Sadu, Novi Sad (Yugoslavia). Prirodno-matematicki fakultet, Institut za biologiju) | Djukic, N. | Dalmacija, B. | Maletin, S. | Miljanovic, B. | Bokorov, M.
To evaluate precision and reliability of recently introduced Metal Pollution Index as a method for metal pollution monitoring of surface waters, a series of toxicity tests with Daphnia magna have been undertaken. The sampling sites (the River Danube wetlands and Hydrosystem DTD (Danube - Tisza - Danube), Serbia, Yugoslavia) for this study have been chosen according to previously recorded high MPI values. Chemical characterization and WET (whole effluent toxicity) testing of selected waste waters at the chosen sampling sites, and the recipient water toxicity testing upstream and downstream the discharger evaluated the validity of MPI, and, on the other hand, discriminated the effects of background pollution. The results of acute and chronic toxicity tests of water and sediment corresponded well with MPI values, which leads to a conclusion that MPI could be regarded as a reliable and precise method for metal pollution monitoring of surface waters.
显示更多 [+] 显示较少 [-]Criteria for obtaining quality indicators of surface waters: an example of the South Morava river basin [Serbia, Yugoslavia]
2001
Veljkovic, N. (Vodovod, Leskovac (Yugoslavia)) | Milenkovic, S. | Dopudja-Glisic, T.
The work gives the regime of surface water flows with hydrographic net and the regime of waters at hydrologic stations for the period of 1988-1998. Consequently in this paper will be designed a resonant indicator which is derived out of the composite index group of WQI for the flow field in the period under research. Depending on the index points won at the examined profiles, estimation of waterflows quality will be adapted to the goals of indicator users, in this case to the public. Indicators of the type very poor, poor, good, very good and excellent. Hereto it is important to mention that hereby validity of original composite indicator will have to be sacrificed.
显示更多 [+] 显示较少 [-]On minimum flows allowed for withdrawal from surface water network
2001
Vukmirovic, V. | Petrovic, J. | Pavlovic, D. (Univerzitet u Beogradu, Beograd (Yugoslavia). Gradjevinski fakultet)
Withdrawal of water from surface water network should be concerned with preservation of the environment, meaning that the low flow regime in streams should be preserved within the range of natural regime. In order to formulate criteria for minimal allowed flows in streams, it was necessary to perform statistical analysis of low flows in rivers in Serbia (Yugoslavia). The criteria for water withdrawal are proposed on the basis of characteristic ratios between minimum and mean flows. Different criteria are proposed for cold and warm seasons.
显示更多 [+] 显示较少 [-]The fish community as an indicator of water quality in the marsh of Kovilj [Serbia, Yugoslavia]
2001
Maletin, S. (Poljoprivredni fakultet, Novi Sad (Yugoslavia)) | Miljanovic, B. | Djukic, N. | Sipos, S.
In order to carry out the program of protection and rational exploitation of Kovilj Marsh (Serbia, Yugoslavia), which is a part of special natural reserve called the Marsh of Kovilj and Petrovaradin, we have done an ecological analysis of the fish community. The research was conducted during the period of "low water", in the autumn 2000, on the following locations: Slajz, Tonja and Arkanj, and we have established the presence of 12 species from 6 different families. The saprobic index of the majority of bioindicative species shows that the water belongs to the beta-mesosaprobic type (the saprobic index according to Pantle-Buck is 2.1). The presence and abundance of certain ecological groups of fish is examined in relation to migration, type of food and type of substrate on which the fish lay their eggs. The results of this examination point to main features of certain localities in this floodplain, as well as to the necessity of taking appropriate measures of protection of this valuable water resource.
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