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Dynamic of physico-chemical parameters and chlorophyll a in Boka Kotorska Bay [Adriatic sea, Montenegro] | Dinamika fizičko-hemijskih parametara i hlorofila a u Bokokotorskom zalivu [Jadransko more, Crna Gora]
2012
Žmukić, J., Institut za biologiju mora, Kotor (Montenegro) | Krivokapić, S., Prirodno-matematički fakultet, Podgorica (Montenegro) | Kljajić, Z., Institut za biologiju mora, Kotor (Montenegro)
The fact is that in the world today water and land represents limited life resources which are more and more degrade and disturbed, mostly by anthropogenic influence. Especially water (seas, rivers, lakes) is exposed to various types of pollution. The fact is that in the world today water and land represented limited life resources which are more. That why in present time we conduct numerous scientific researches to examine, advance and protect our environment, especially water as a limited and delicate natural resource. In this work results from April to September 2011 are presented, which comprised analyses of samples from 8 stations in Boka Kotorska Bay. The main aim was to estimate trophic level, of determining the concentration of the physico-chemical parameters, chlorophyll a and TRIX index in Boka Kotorska Bay.
Mostrar más [+] Menos [-]Monitoring and modeling of physical, chemical and biological parameters of Lake Zavoj [Serbia] | Merenje i modeliranje fizičkih, hemijskih i bioloških parametara jezera Zavoj [Srbija]
2012
Kostić, D., Građevinski fakultet, Beograd (Serbia) | Jaćimović, N., Građevinski fakultet, Beograd (Serbia) | Naunović, Z., Građevinski fakultet, Beograd (Serbia) | Ivetić, M., Građevinski fakultet, Beograd (Serbia)
Complex hydrodynamics and thermal regimes of temperate lakes have a major impact on temporal and spatial distributions of water quality indices. Transport processes in lakes are driven primarily by external forces such as wind and solar radiation but also depend on the inflow and outflow regimes. This paper presents a simplified ID model developed to calculate seasonal variations in vertical distributions of temperature and dissolved oxygen in Lake Zavoj in southern Serbia. Model results that were based on monthly averaged meteorological data are in good agreement with measured vertical profiles of temperature and dissolved oxygen. The simplified model is an efficient tool for long-term prediction of water quality indices in deep, medium and long residence time lakes.
Mostrar más [+] Menos [-]The influence of eutrophication on phytoplankton component along Montenegrin coast | Uticaj eutrofikacije na fitoplanktonsku komponentu crnogorskog primorja
2010
Drakulović, D., Institut za biologiju mora, Kotor (Montenegro) | Vuksanović, N., Institut za biologiju mora, Kotor (Montenegro)
In this work results from April to September 2009 are presented, which comprosed analyses of samples from 15 stations along Montenegrin coast. The main aim was to estimated level of eutrophication and phytoplankton community characteristic for eutrophic area. Maximum mean value of microplankton of 8.4 x 10**5 cells/l was noted in the inner part of Bokakotorska Bay. This area has maximal values throughout all period of investigation. It is result of waters dynamics and influence from the coast. In the open sea values were lower, about 10**4 cells/l. These results show that Montenegrin coast is an eutrophic region. Some phytoplankton organisms characteristic for eutrophic region were found also. The most abundant species was Thalassionema nitzschioides with maximum mean value of 8.4 x 10**5 cells/l.
Mostrar más [+] Menos [-]Chlorophyll a and eutrophication in Kotor Bay [Adriatic sea, Montenegro] | Hlorofil a i eutrofikacija u Kotorskom zalivu [Jadransko more, Crna Gora]
2009
Krivokapic, S., Prirodno-matematicki fakultet, Podgorica (Montenegro). Studijski program za biologiju | Pestoric, B., Institut za biologiju mora, Kotor (Montenegro) | Drakulovic, D., Institut za biologiju mora, Kotor (Montenegro)
The weekly measurement of physico-chemical and biological parameters was done during the spring of 2008 in order to assess the level of eutrophication in the Kotor Bay. Chlorophyll a was used as trophic level indicator and its values varied from minimal 1.00 mg/cubic meter in June on the depth of 10 m to maximal 3.71 mg/cubic meter on the sea surface in May. According to Nixon criteria during investigation period it can be concluded that the area in question is oligotrophic. On the other hand, according to UNEP criteria which are somewhat stricter when the concentration of chlorophyll a is in question, Kotor Bay was mesoeutrophic area.
Mostrar más [+] Menos [-]Contribution to comprehend reservoir eutrophication and trophic state | Doprinos razumevanju eutrofizacije i trofije u akumulacijama
2009
Ostojic, A., Prirodno-matematicki fakultet, Kragujevac (Serbia). Institut za biologiju i ekologiju | Curcic, S., Pedagoski fakultet, Jagodina (Serbia) | Comic, Lj., Prirodno-matematicki fakultet, Kragujevac (Serbia). Institut za biologiju i ekologiju | Topuzovic, M., Prirodno-matematicki fakultet, Kragujevac (Serbia). Institut za biologiju i ekologiju
In the paper we presented the effort to collect the recent data clarifying eutrophication as one of the commonest problems of freshwater. The paper includes experience of researchers related to causes of onset and effects of eutrophicational processes on trophic level increase in reservoirs.
Mostrar más [+] Menos [-]Diatoms as an indicators of eutrophication in the Kotor and Risan Bay [Montenegro] | Dijatomejska komponenta kao indikator eutrofikacije u kotorskom i risanskom zalivu [Crna Gora]
2008
Vuksanovic, N., Univerzitet Crne Gore, Kotor (Montenegro). Institut za biologiju mora | Drakulic, D., Univerzitet Crne Gore, Kotor (Montenegro). Institut za biologiju mora | Krivokapic, S., Univerzitet Crne Gore, Podgorica (Montenegro). Prirodno-matematicki fakultet, Studijska grupa za biologiju
Samples for phytoplankton investigations were collected in annual period (September 2003 - August 2004) in the Kotor and Risan Bay. Mean-values percentage contribution of the group diatoms (Bacillariophyceae) through the annnual period were from 79.70% to 86.50%. Species Skeletonema costatum, Pseudo-mitzschia delicatissima, Leptocylindrus minimus and Chaetoceros affinis, were the main edificators of diatom population. Densities of these species were from 10**5 to 10**6 cells/cubic dm. These values are characteristic of eutrophic and extreme eutrophic area. It is needed one permanent monitoring to protect this part of Boka Kotorska Bay negative consequences.
Mostrar más [+] Menos [-]Dynamics of nutrients on Montenegrin coast | Dinamika nutrijenata na crnogorskom primorju
2008
Joksimovic, D., Institut za biologiju mora, Kotor (Montenegro)
Some data on investigations of the eutrophication processes in the Herceg Novi and Budva coastal sea [Montenegro] | Neki rezultati istrazivanja eutrofikacije mora u hercegnovskom i budvanskom podrucju [Crna Gora]
2008
Regner, D., Institut za biologiju mora, Kotor (Montenegro) | Vuksanovic, N., Institut za biologiju mora, Kotor (Montenegro) | Joksimovic, D., Institut za biologiju mora, Kotor (Montenegro)
In this paper some results of investigations of physical, chemical and biological parameters were presented from the parts of Montenegrin coastal sea exposed to the impact of the open waters of the Southern Adriatic sea. As Herceg Novi area is simultaneously the part of the Boka Kotorska Bay (which goes deeply to mainland), eutrophication is more visiable there. Biological parameters were the most visiable indicators of eutrophication during these investigations.
Mostrar más [+] Menos [-]The ecological status of mussel farms (Mytilus galloprovincialis, Lamarck, 1819) in Kotor-Risan bay [Adriatic sea, Montenegro] during summer months of 2010 and 2011 | Ekološko stanje gajilišta dagnje (Mytilus galloprovincialis, Lamarck, 1819) u Kotorsko-Risanskom zalivu [Jadransko more, Crna Gora] u toku letnjih meseci 2010 i 2011 godine
2012
Huter, A., Institut za biologiju mora, Kotor (Montenegro)
On the base of monitoring of water quality for aquaculture, performed since 2010, it is noticed that two positions are showing increased level of trophicity and bacteriological contamination. Changes in sanitary quality of farms are especially intensive during the summer months, so the results of basic physical, chamical and biological parameters, measured during periods June-September 2010 and 2011 are presented and compared.
Mostrar más [+] Menos [-]Eutrophication of the Lake Prespa [The Former Yugoslav Republic of Macedonia] | Eutrofikacija vode Prespanskog jezera [Bivša Jugoslovenska Republika Makedonija]
2012
Veljanoska-Sarafiloska, E., JNU Hidrobiološki zavod, Ohrid (The Former Yugoslav Republic of Macedonia) | Šemo, M., JNU Hidrobiološki zavod, Ohrid (The Former Yugoslav Republic of Macedonia) | Jordanoski, M., Veterinaren fakultet, Bitola (The Former Yugoslav Republic of Macedonia)
The aim of this work is to present the trophic state of water at the pelagic zone of lake Prespa, reviewing the result of defined parameters of physico-chemical and algological aspect. Investigations are done according to standard limnological methods and the samples for analysis were collected from one vertical profile (0, 5, 10 and 15 m) monthly during 2008 year. Water categorization, on the basis of gathered data from analyses of the sampling localities was done according to the OECD-regulations, positive law regulations of the Republic of Macedonia and Nürnberg classification system. Data from this investigating period point out that this area of the lake Prespa is by great influence of the anthropogenic factor and intensive eutrophication.
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