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Water quality changes in the chanel network
2005
Belic, S. | Savic, R. | Belic, A.(Poljoprivredni fakultet, Novi Sad (Serbia and Montenegro). Departman za uredjenje voda)
Aspiration to multipurpose use of built drainage systems structure in Vojvodina, total length about 20,000 km, must be followed by detailed investigation of influence of water stream through detailed canal network (DCN) from water source to the final consumer. Typical cases of two purpose use of DCN is supply canal of drainage / irrigation system on region Middle Banat, Zrenjanin, characterized by taking water from Begej river and long stream to the final consumer. Influence of long stream through DCN to water quality change are investigated on mentioned localities during 2004. Obtained results are pointed out water quality decrease in these conditions. Decrease is expressive in case of smaller flow. This paper deals with estimation of water suitability for irrigation taking into consideration possible undersirable effects of this water to irrigated soil.
Afficher plus [+] Moins [-]Algal and saprobiological characteristics of river Crnojevica [Montenegro (Serbia and Montenegro)] water in summer period of 2004. Preliminary investigations
2005
Obuskovic, Lj.(Institut za bioloska istrazivanja Sinisa Stankovic, Beograd (Serbia and Montenegro)) | Djuraskovic, P.(Hidrometeoroloski zavod Crne Gore, Podgorica (Serbia and Montenegro))
The river Crnojevica is a subject of lasting manny years physicochemical and microbiological investigations, which show worring pollutants presence into the water current. This work represent preliminary investigations of Crnojevica river water algal flora (phytoplankton and phytoperiphyton), carrying out over summer period of 2004. Aim of the investigation was to point, based on algal analysis, as reliable indicators of water quality and ecological status of an aquatorius, the need to protect the river from permanent communal and industrial waste water pollution. The hyperproduction of phytoplankton in the investigation period was stated, but it varys along the current, in accordance with efluent inflow. On the base of saprobiological analysis of phytoplankton, determinated water quality was in class 2, till the worse was noted at T2 measure place, on the inflow place of Rijeka Crnojevica settlements sewage.
Afficher plus [+] Moins [-]Redundance rivers in the confluence of Likorda [Serbia (Serbia and Montenegro)]
2005
Ristanovic, B. E-mail:braristan@yahoo.com | Jokic, I. | Bojanic, D.(Prirodno-matematicki fakultet, Novi Sad (Serbia and Montenegro). Departman za geografiju, turizam i hotelijerstvo)
Redudance rivers are basic hydrographic problem in area of Radjevina. Their appearance to associate for most rivers in the confluence of Likorda river and have character of season. Using method of quantity index the rivers of this region are classified in special hydrological classes. On the basis of this typology the possible models for solution of this problem are given.
Afficher plus [+] Moins [-]Estimate of the emission of phosphorus from inundation zone of accumulation lake Rovni [Serbia (Serbia and Montenegro)]
2005
Manojlovic, D.(Univerzitet u Beogradu, Beograd (Serbia and Montenegro). Hemijski fakultet) E-mail:manojlo@chem.bg.ac.yu | Krsmanovic, V. | Golubovic, R. | Savic, S.
Eutrophication is one of the main problems of water deterioration in accumulation lakes. Phosphorus is considered as the key factor for eutrophication of lacustrine water. Its concentration in lakes originates from external input and the emission from the sediment. It was necessary to determine the substrates of phosphorus by sequential extraction in order to determine the dynamics and bioavailability of phosphorus. On the basis of results obtained the proposals for the preparation of land were made in order to minimise the input of phosphorus.
Afficher plus [+] Moins [-]Hydrocarbon-oxidizing and lipolytic bacteria as indicators of oil contamination of the hydraulic barrier wells water
2005
Petrovic, O.(Prirodno-matematicki fakultet, Novi Sad (Serbia and Montenegro). Departman za biologiju i ekologiju) E-mail:petrovico@ib.ns.ac.yu | Dalmacija, B. | Simeunovic, J. | Roncevic, S. | Knezevic, P.
Some physiological groups of bacteria can be good indicators of the oil pollution of the environment. Oil contamination represents a special problem because of their persistence and possibility of reaching drinking water supply sources. The destruction of the Novi Sad Oil Refinery in the hinterland of water supply source Ratno Ostrvo has endangered drinking water supply of the city of Novi Sad. As an acceptable protection measure appeared the solution with the hydraulic barrier located along the east side of the Refinery, bordering with the water supply source. Physiological groups of bacteria relevant to oil contamination (hydrocarbon-oxidizing and lipolytic bacteria) were detected in the waters of the barrier wells. The appearance and population of this microflora in the water of these wells were more pronounced compared with the waters of a control piezometer in the hinterland of the water supply source.
Afficher plus [+] Moins [-]Contribution to the knowledge of phytoplankton of Kotor bay [Adriatic sea, Montenegro (Serbia and Montenegro)] [during] the winter season 2004
2005
Vuksanovic, N.(Institut za biologiju mora, Kotor (Serbia and Montenegro)) E-mail:nvuksanovic@ibmk.org | Krivokapic, S.(Univerzitet Crne Gore, Podgorica (Serbia and Montenegro). Prirodno-matematicki fakultet, Odsjek za biologiju) E-mail:sladjana69@yahoo.com
There are presented the results of investigations carried out in the Kotor Bay (Adriatic Sea), Montenegro (Serbia and Montenegro) during the winter months of 2004. The highest value of microphytoplankton as a greater size-fraction of phytoplankton is found in the surface layer during March (1.4 x 10**7 cells/cubic dm). The main edificator was diatomic species Skeletonema costatum with relative percentage about 100%. Obtained results point out that Kotor Bay belongs to the highest eutrophic or extreme eutrophic area. Similar result is found in the same period twenty years ago.
Afficher plus [+] Moins [-]Chlorophyll a and eutrophication conditions in Kotor bay [Adriatic sea, Montenegro (Serbia and Montenegro)]
2005
Krivokapic, S.(Prirodno-matematicki fakultet, Podgorica (Serbia and Montenegro). Studijska grupa za biologiju) E-mail:sladjana69@yahoo.com | Vuksanovic, N. | Stankovic, Z.
Eutrophicationn problems in the Kotor bay were studied monthly from September 2003 to August 2004. As a result of nutrient enrichment (directly dependent on human activities), phytoplankton growth was very intensive, reflected by high concentration of chlorophyll a (7.46 mg/cubic m).
Afficher plus [+] Moins [-]Similarity indices of zooplankton community in Boka Kotorska bay [Adriatic sea, Montenegro (Serbia and Montenegro)]
2005
Vukanic, V.(Gimnazija, Kotor (Serbia and Montenegro)) E-mail:v_vukanic@yahoo.com
In this paper, we used similarity index, such as Sorensen similarity index (S), Jaccard similarity index (Cj) and Percentage Similarity Index (PSC), to show similarities and contrasts within the qualitative structure of zooplankton of various bays within Boka Kotorska. This kind of statistical overview was made for Boka Kotorska Bay for the first time, so we believe that it is a valuable contribution to recent studies on zooplankton. Tables show the results for each index individually, as well as the smallest and greatest similarity among the bays. We also presented the number of recorded species in the Boka Kotorska Bay arranged by months for three different years.
Afficher plus [+] Moins [-]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.
Afficher plus [+] Moins [-]Determination of lead content in stream water of river Ibar [Serbia (Serbia and Montenegro)] by potentiometric stripping analysis (PSA)
2005
Babincev, Lj.M.(Fakultet tehnickih nauka, Kosovska Mitrovica (Serbia and Montenegro)) E-mail:babicev@ptt.yu | Novakovic, I.D. | Rajakovic, Lj.V.
Potentiometric stripping analysis (PSA) is highly sensitive electroanalytical method for determination of traces of heavy metals. In this paper detection limit and linearity of potentiometric stripping analysis for lead was investigated. Method was successfully used for determination of traces of lead ion (detection limit 5 microgram/cubic dm) in stream water of river Ibar, before and after joint of potential pollutant.
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