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Water quality of the Danube river with regard to the iron gate reservoir [Djerdap], [Serbia, Serbia&Montenegro]
2003
Damjanovic, M. | Popovic, L. (Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia and Montenegro))
This paper presents the most important results on water quality investigation of the Danube river in the Iron Gate reservoir. The investigations are conducted by the Institute Jaroslav Cerni by means of regular monitoring renewed after a long pause in 2001. The determined phenomena are considered in regard to water quality of the Danube river in the upstream zone.
Показать больше [+] Меньше [-]Analysis of chlorophyll-a concentrations in the Danube river [Serbia] during 2002-2005
2006
Obradovic, V. (Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia)), E-mail: oveca@eunet.yu | Janac, M. (Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia)) | Milenkovic, N. (Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia))
This paper presents the results of investigation on photosynthetic pigments, chlorophyll a in the river Danube (Serbia) during 2002-2005. Field investigations were carried out with seasonal dynamics on the river strech between 1112 and 851 km. Exceptionally in September, during low water period, investigations were carried out on the river strech between km 1260 - 851, including the main tributaries: Tisza, Sava, Velika Morava and Pek. The concentrations of chlorophyll a and phaeophytin a were determined using the standard ISO 10260/92 methodology, variant B. Pigment extraction was done in hot ethanol immediately after sampling, on board of a research ship. The results revealed seasonal concentration dynamics of the mentioned indicators of primary productivity and physiological status of the algae community where fall of chlorophyll a from the upstream towards downstream profiles was evidenced.
Показать больше [+] Меньше [-]Phytoplankton biomass of the Danube river [Serbia]
2006
Cadjo, S. (Republicki hidrometeoroloski zavod Srbije, Beograd (Serbia)), E-mail: scadjo@hidmet.sr.gov.yu | Miletic, A. (Republicki hidrometeoroloski zavod Srbije, Beograd (Serbia)) | Bugarski, R. (Republicki hidrometeoroloski zavod Srbije, Beograd (Serbia))
A great floristic variety has been noted according to qualitative analysis of phytoplankton. The presence of 187 taxa from 7 divisions of algae has been noted. The results of quantitative analysis show the dominance of centric diatoms. The high values of biomass that point out on the trophicity increase are noted on the strech from Nestin to Zemun (Serbia) with the maximum at Centa (Serbia) with 15,885 mg/cubic dm. Downstream Zemun, it has been noted gradual decrease of biomass up to Pancevo (Serbia), and afterwards downstream the considerable reduction all the way up to Brnjica (Serbia), where the value of algal biomass was 1,697 mg/cubic dm.
Показать больше [+] Меньше [-]Phytoplankton and ecological potential of the Hydrosystem Danube-Tisza-Danube [Serbia]
2006
Nemes, K. (Univerzitet u Novom Sadu, Novi Sad (Serbia). Prirodno-matematicki fakultet, Departman za biologiju i ekologiju), E-mail: karolina@ib.ns.ac.yu | Simeunovic, J. (Univerzitet u Novom Sadu, Novi Sad (Serbia). Prirodno-matematicki fakultet, Departman za biologiju i ekologiju) | Matavulj, M. (Univerzitet u Novom Sadu, Novi Sad (Serbia). Prirodno-matematicki fakultet, Departman za biologiju i ekologiju)
Phytoplankton composition of the Hydrosystem Danube-Tisza-Danube (HS DTD) and isolated peaks of chlorophyll a in summer months of 2003 and 2004 revealed moderate ecological potential in Banat and Backa region (Serbia). Investigated HS DTD water pointed out to a slighty better ecological potential in 2004.
Показать больше [+] Меньше [-]Phytoplankton contents, physico-chemical and saprobiological characteristics of Danube river, on Bezdan locality [Serbia (Serbia and Montnegro)]
2005
Cadjo, S.(Republicki hidrometeoroloski zavod Srbije, Beograd (Serbia and Montenegro)) E-mail:scadjo@hidmet.sr.gov.yu | Djurkovic, A. | Miletic, A. | Bugarski, R.
The results of the examination point out on heterogenity of the phytoplankton community. The presence of 212 taxa has been noted. In the way of quality the green algae are dominant. In all the aspects of the quantitative analysis the domination of Bacillariophyta has been noted, first of all the centric forms. The amount of nutrients on the locality of border with Hungary is considerable, thus during low water and high temperature, the intensive algae development is usual.
Показать больше [+] Меньше [-]Determination of arsenic and aluminium in water: results of the 1st regional interlaboratory study
2005
Todorovic, M.(Univerzitet u Beogradu, Beograd (Serbia and Montenegro). Hemijski fakultet) E-mail:vobel@chem.bg.ac.yu | Voulgaropoulos, A. | Manojlovic, D. | Trbovic, D. | Nesic, B. | Krsmanovic, V.D.
The 1st South-Eastern European Interlaboratory Study: WATER ANALYSIS - 2003 was organized by International Scientific Committee on the basis of international European and regional experiences. The total of 38 laboratories took part in WATER-ANALYSIS 2003. Three laboratories were from Greece, two from the Republic of Srpska (Bosnia and Herzegovina), eight from Romania and all others from Serbia and Montenegro. Two samples were prepared from water of the river Danube and the task for participants was to determine trace elements: Al, As, Cd, Cu, Mn, Fe, Pb, and Zn. Results of determination of arsenic (As) and aluminium (Al) are presented in this paper.
Показать больше [+] Меньше [-]Effect of wastewaters from the Novi Sad [Serbia (Serbia and Montenegro)] Oil Refinery on the Danube water and sediment quality at the old and new discharge sites in 2004
2005
Roncevic, S. E-mail:srki@ih.ns.ac.yu | Dalmacija, B. | Krcmar, D. | Aleksic, A. | Jovic, B.(Prirodno-matematicki fakultet, Novi Sad (Serbia and Montenegro). Departman za hemiju)
Wastewater from the Novi Sad Oil Refinery, Serbia (Serbia and Montenegro) had been previously discharged to the Danube river between the raw water wells. In order to protect water supply source, the collector discharge was displaced downstream, outside the raw water wells area. In 2004, the quality of Danube river water and sediment was monitored at the sites of the old and new collector discharge of the Oil Refinery wastewaters, as well as at two control (reference) sites. The paper presents chemical quality parameters of water and sediment, characterizing oil contamination. Significantly increased contents of oil contaminant were measured in the Danube river sediment at the old discharge site compared to other sampling points, which is a consequence of many-year accumulation, as well as in the Danube river water at the new discharge site, as a consequence of the present wastewater discharge.
Показать больше [+] Меньше [-]Saprobiological analysis of Danube planktonic and macrozoobenthic communities and the river water quality in Belgrade region in 2003
2004
Martinovic-Vitanovic, V.E-mail:vmartino@ibiss.bg.ac.yu | Jakovcev-Todorovic, D. | Obradovic, S. | Kalafatic, V.(Institut za bioloska istrazivanja 'Sinisa Stankovic', Beograd (Serbia and Montenegro))
Water quality studies of the Danube river in Belgrade region (Serbia and Montenegro) were performed at five locations, in June and September, 2003. Results of the qualitative, quantitative and saprobiological analyses of plankton and macrozoobenthic communities were used for the water quality assessment and the categorization of the watercourse examined. The bioindicator analysis points to the presence of mild organic pollution, water quality varying between the 2nd and 3rd class.
Показать больше [+] Меньше [-]The Danube water quality control in relation to protection and sustainable use
2004
Perisic, M.(Geoinstitut, Beograd (Serbia and Montenegro))E-mail:perisicm@sezampro.yu | Tutundzic, V.(Geoinstitut, Beograd (Serbia and Montenegro))