Affiner votre recherche
Résultats 11-20 de 42
The influence of water quality of the Moraca river on Lake Skadar from the aspect of plankton dynamics | Uticaj kvaliteta vode rijeke Moraca na Skadarsko jezero sa aspekta dinamike planktona
2008
Radonjic, D., Fabrika za proizvodnju lekova Hemomont, Podgorica (Montenegro) | Nemes, K., Prirodno-matematicki fakultet, Novi Sad (Serbia)
Lake ecosystems determined by trophic conditions, accurately defined Ecological status of protected area. Trophic condition of water of Lake Skadar and two rivers, the inflow Moraca and the outflow Bojana was described via plankton data considering abundance of phytoplankton, seasonal dynamics of organotrophs, cyanobacteria, total coliforms, plankton biodegrading potential and nitrogen fixing bacterioplankton. The trophic potential for phytoplankton growth has been detected in late autumn throughout September-November 2004, contrary to early summer June-July 2005, and adverse growth of bacterioplankton in May, June and September 2005, respectively. The results of quantitative analysis of coliforms showed good relation of Lake Skadar and Ada Bojana, contrary to similarities between Moraca River and Ada Bojana estimates in accordance with the Pantle-Buck index. Nevertheless, investigation pointed out Lake Skadar beta-mesosaprobic level and moderate self-purification rate. In evaluating trophic conditions the good ecological potential of protected area has been proposed.
Afficher plus [+] Moins [-]Ichthyofauna diversity of some Vrbas River [Bosnia and Herzegovina] tributaries as water quality indicator | Diverzitet faune riba nekih pritoka rijeke Vrbas [Bosna i Hercegovina] u indikaciji kvaliteta vode
2012
Golub, D., Prirodno-matematički fakultet, Banja Luka (Bosnia and Herzegovina) | Dekić, R., Prirodno-matematički fakultet, Banja Luka (Bosnia and Herzegovina) | Šukalo, G., Prirodno-matematički fakultet, Banja Luka (Bosnia and Herzegovina) | Siđak, S., Prirodno-matematički fakultet, Banja Luka (Bosnia and Herzegovina) | Lolić, S., Prirodno-matematički fakultet, Banja Luka (Bosnia and Herzegovina)
In the year 2010 ichthyological research on some Vrbas River tributeries located on wider area of Banjaluka city (Bosnia and Herzegovina) was carried out and the occurrence of 14 fish species was recorded. On the basis of the occurrence and abundance of fish species indicators as limnosaprobic parameter, water quality of the analyzed watercourses variated from oligosaprobic to beta mesosaprobic (I and II class of bonity) with saprobic index from 1.27 for Švrakava River to 1.81 for Vrbanja River. The obtained results indicate that water quality of this Vrbas River watershed was on satisfactory level for multiple purposes (in order to sustain ichthyofauna diversity and production and as potential protected areas and spawning zone for some endangered domestic fish species).
Afficher plus [+] Moins [-]Diet of brown trout (Salmo trutta L. 1758) in remarkable feature of the landscape canyon of the Gradac River [Serbia] in autumn | Makrozoobentos i ishrana potočne pastrmke (Salmo trutta L. 1758) na području predela izuzetnih odlika klisure reke Gradac [Srbija] u jesenjem periodu
2012
Skorić, S., Institut za multidisciplinarna istraživanja, Beograd (Serbia) | Đikanović, V., Institut za biološka istraživanja Siniša Stanković, Beograd (Serbia) | Pucar, M., Institut za multidisciplinarna istraživanja, Beograd (Serbia) | Krpo-Ćetković, J., Biološki fakultet, Beograd (Serbia) | Hegediš, A., Institut za multidisciplinarna istraživanja, Beograd (Serbia)
In this work, the results of preliminary study of stomach content in brown trout (Salmo trutta L. 1758) of the Gradac in autumn are presented. The fishes were collected by the end of September of 2011 at three sampling sites along the course. A total of 12 fish specimens were examined. By examination of trout stomach content have been found members from macrozoobentho-groups – Trichoptera, Ephemeroptera, Diptera (fam. Ceratopogonidae), Oligochaeta, Coleoptera. At the same time, investigations of bottom fauna composition and structure have been done also. Our study showed that the diet of brown trout is dependent of bottom fauna availability and abundance.
Afficher plus [+] Moins [-]Evaluation of the status of the Gradac river (the Kolubara river watershed, Sava river basin) [Serbia] based on aquatic macroinvertebrates | Ocena statusa reke Gradac (sliv reke Kolubare) [Srbija] na osnovu vodenih makrobeskičmenjaka
2010
Đikanović, V., Institut za biološka istraživanja Siniša Stanković, Beograd (Serbia) | Atanacković, A., Institut za biološka istraživanja Siniša Stanković, Beograd (Serbia) | Tomović, J., Institut za biološka istraživanja Siniša Stanković, Beograd (Serbia) | Vasiljević, B., Institut za biološka istraživanja Siniša Stanković, Beograd (Serbia) | Pantović, N., Prirodno-matematički fakultet, Kragujevac (Serbia) | Cakić, P., Institut za biološka istraživanja Siniša Stanković, Beograd (Serbia)
The paper presents aquatic macroinvertebrate community at four investigated localities of the Gradac river. Sampling was carried out during 2003 and 2006. Community structure and composition, together with field data, were used to estimate the water quality status of the river. A total of 87 taxa have been recorded. Insects were found to be the most diverse component, especially Ephemeroptera. Insects were dominant in the regard of the quantitative structure of the community, as well. Recorded community indicates good water quality, ranged between oligosaprobic and beta-mesosaprobic status (1st-2nd class according national classification scheme).
Afficher plus [+] Moins [-]Chromosomal damages as consequence of genotoxic contamination waters in Belgrade area | Oštećenja hromozoma riba kao posledica genotoksičnog zagađenja voda na području Beograda
2010
Fišter, S., Univerzitet Union, Beograd (Serbia). Fakultet za ekologiju i zaštitu životne sredine | Cibulić, V., Univerzitet Union, Beograd (Serbia). Fakultet za ekologiju i zaštitu životne sredine | Stamenković, L., Univerzitet Union, Beograd (Serbia). Fakultet za ekologiju i zaštitu životne sredine
The analysis of breaks and gaps frequences in the fish species Alburnus alburnus from different localities of rivers Kolubara, Sava and Danube, were showed the highest values that were above the presumed critical zone (3.0-3.5% of changes). At some of localities examined in May and October 2008, these values were much more elevated that the level of spontaneous changes normally seen in the controls in laboratory animals and in fish of relatively clean waters. Results that were obtained for these localities indicate to periodical or permanent contamination with genotoxic agents.
Afficher plus [+] Moins [-]Macroinvertebrates in SERCON evaluation of conservation potential on the river Jegricka [Serbia] | Makroinvertebrate u SERCON proceni konzervacionog potencijala vodotoka Jegricka [Srbija]
2009
Pogrmic, S. | Jurca, T. | Mijatovic, B. | Zivic, N. | Pankov, N. | Sipos, S. | Mijic, I., Univerzitet u Novom Sadu, Novi Sad (Serbia). Prirodno-matematicki fakultet
Jegricka water body is part of the Main Drainage Channel System. The whole length of Jegricka (65 km, catchment surface 60.380 ha) is located in south part of Backa, Vojvodina Province. This highly modified water flow has become protected area since 2005 due to its specific natural features - diversity and uniqueness of biotic features, especially for birds and plants. In July 2008 survey of freshwater macroinvertebrates was conducted in order to assess water quality and conservation potential according to biotic characteristics according to conservation criteria within SERCON (System for Evaluating Rivers for Conservation) method. The aim of this paper was to evaluate the importance of macroinvertebrates as indicators of conservation potential of Jegricka water using SERCON. Results of analyses of species composition of freshwater invertebrates fauna showed presence of 12 higher taxonomic groups. Within these groups, 23 families were present at eight RHS river sections along investigated part of Jegricka water body. Togheter with SERCON based conservation criteria for macroinvertebrate, two types of biotic indices Biological Monitoring Working Party (BMWP) and Average Score Per Taxon (ASPT) were calculated in order to assess water quality. Results of the survey showed that Jegricka water body belongs probably to moderately polluted water type according to biotic indices. Results of conservation criteria Naturaless showed that observed and expected faunas are similar. Low values of SERCON family richness criteria based on whole length of water body indicate that Jegricka has low conservation potential, and that adequate rehabilitation measures should be considered in the future.
Afficher plus [+] Moins [-]Phytoplankton of reservoir Grliste [Serbia] | Fitoplankton akumulacionog jezera Grliste [Srbija]
2008
Vuckovic, M. | Mirjacic-Zivkovic, B., Zavod za javno zdravlje Timok, Zajecar (Serbia)
This paper shows the results of research of some phytoplankton and saprobiological characteristics of water in reservoir Grliste and the flowing rivers during the period of January 2001 to December 2007. During this period of researching, phytoplankton community was characterized by forms of Bacillariophyta, Chlorophyta, Cyanophyta, Chrysophyta, Pyrrophyta and Euglenophyta. Saprobiological analyses using bioindicatory species of algae showed oligosaprobic and beta-mezosaprobic characteristics of water in the reservoir. The analyses showed the poor water quality of Lesovacka and Lenovacka rivers which flow in reservoir. This water was determined as beta-mezosaprobic and alfa-mezosaprobic type. The phytoplankton was characterized by forms of Bacillariophyta, Chlorophyta, Pyrrophyta and Euglenophyta.
Afficher plus [+] Moins [-]Distribution of small units ass. Salicetum albae-fragilis, Soo 1958 under the antropogenic influcence [i.e. influence] in the middle reaches of the Moravica river [Serbia] and its indicative values | Razvoj sastojine ass. Salicetum albae-fragilis, Soo 1958. pod antropogenim uticajem u srednjem toku Moravice [Srbija] i njene indikatorske vrednosti
2008
Milenovic, V., Osnovna skola Vuk Karadzic, Zitkovac (Serbia) | Randjelovic, N., Prirodno-matematicki fakultet, Nis (Serbia)
During the field research of phytocenous characteristics of the Moravica river flow and the influence of anthropogenic pollution, hygrophilous ass, Salicetum albae-fragilis (willow grove-shrubs in moist habitats) which grows in the middle reaches of the Moavica, has been found. The community develops in the middle reaches and it indicates highly polluted waters. The aim of this paper is to establish phytocenous contents of the community and ecological conditions of the habitat (indicatives of water quality of the Moravica river) based on ecological index of vascular plants.
Afficher plus [+] Moins [-]The influence of waste water from the Nish city [Serbia] on the structure and composition of macroyoobenthos [i.e. macrozoobenthos] of Gabrovac river | Uticaj otpadnih voda grada Nisa [Srbija] na strukturu i sastav makrozoobentosa Gabrovacke reke
2008
Zivic, N.V., Univerzitet u Nisu, Nis (Serbia). Prirodno-matematicki fakultet | Miljanovic, B., Univerzitet u Novom Sadu, Novi Sad (Serbia). Prirodno-matematicki fakultet | Stojkovic, M., Univerzitet u Nisu, Nis (Serbia). Prirodno-matematicki fakultet | Milosevic, Dj., Univerzitet u Nisu, Nis (Serbia). Prirodno-matematicki fakultet
During 2005-2006 the seasonal researches were taken place aiming to investigate the influence of the urban waste water on the qualitative and quantitative structure of the community of macrozoobenthos in Gabrovacka river. For this purpose five sites were determined and the sampling of the macrozoobenthos was organized on the seasonal level using Surber net.
Afficher plus [+] Moins [-]Status of zoobentos of the Vrbas river upstream water treatment plant Novoselija [Bosnia and Herzegovina] | Stanje zoobentosa Vrbasa uzvodno of fabrike vode Novoselija [Bosnia and Herzegovina]
2008
Pavlovic, N. | Radevic, M. | Filipovic, S. | Balaban, M. | Boroja, M. | Djurdjevic, S. | Manojlovic, M., Prirodno-matematicki fakultet, Banja Luka (Bosnia and Herzegovina)
In the project Quality of Drinking Water of Banja Luka City, during 2007 the colony of zoobentos around the water factory is followed. The composition of colony is different in both season and horizontal profile. The quality of water in litoral area of river is much worse, because polluted water from ambiental settlement and that is indicated by major number of Tubificidae. During monitoring of the states there was a change of qualitative and quantitative composition of colony, also and the change of individual domination of taxons.
Afficher plus [+] Moins [-]