Papers by Branko Miljanovic
Oecologia, 1986
Beaver (Castor canadensis) affect the benthic invertebrate community of small woodland streams in... more Beaver (Castor canadensis) affect the benthic invertebrate community of small woodland streams in Quebec through habitat modifications. Their activities influence community structure through the replacement of lotic taxa by lentic forms and community function by increasing the absolute importance of collectors and predators while decreasing the relative importance of shredders and scrapers in impounded sites. At our study site during the 1983 icefree season, standing stocks of coarse particulate organic matter (>1 ram) were 2-5 times greater (P<0.05) in impounded sites than riffle sites in spring and summer. Fine (212 gm-1 mm) and very fine (0.5 gin-212 gin) particulate organic matter were 3-10 times greater (P<0.05) in impounded sites in all seasons. Chlorophyll a standing stocks did not differ statistically among sites. Total density and biomass of invertebrates in impoundments were 2-5 times greater (P<0.05) than riffle sites in spring and summer, but statistically similar in autumn. Generic diversity (H') was greater (P<0.05) in unaltered sites in autumn. Nonimpounded sites were dominated by Simuliidae, Tanytarsini chironomids, scraping mayflies and net spinning caddisflies while impounded sites were characterized by Tanypodinae and Chironomini chironomids, predacious odonates, Tubificidae, and filtering pelycopods. Our results suggest that current paradigms applied to lotic ecosystems need to be reevaluated to incorporate the influence of beaver upon invertebrate communities.
Materijal za istraživanje ihtiofaune Tamiša sakupljen je avgusta i oktobra 2009. u periodu srednj... more Materijal za istraživanje ihtiofaune Tamiša sakupljen je avgusta i oktobra 2009. u periodu srednjeg vodostaja kao i aprila 2010. godine u periodu visokog vodostaja na lokacijama Sečanj, Banatski Despotovac i Opovo. Prikupljanje uzoraka vršeno je pomoću aparata za elektroribolov i stajaćim mrežarskim alatima dužine od 37 do 100 metara, promera okaca od 45 do 100 mm i dubine 3 do 5 metara. Ovom prilikom evidentirano je 28 vrsta riba iz 8 familija. Prema sastavu ihtiofaune određen je indeks saprobnosti prema Pantle-Buck-u koji iznosi 2.15 i koji ukazuje na to da voda Tamiša pripada drugoj klasi boniteta
Additional file 1. Additional tables.
Environmental Sciences Europe, 2020
Background A prerequisite for long-term survival of populations under multi-stress conditions is ... more Background A prerequisite for long-term survival of populations under multi-stress conditions is their capacity to set up efficient adaptive strategies. However, changes in the activity of molecular biomarkers have been for decades considered as early signals of the deterioration of the fish health and evidence of stress-related adverse biological effects. The aim of this study was to show that such changes actually represent adaptive response of fish to chemical stress. Gene expression and enzyme activity level in liver and brain of specimens from two populations of Abramis brama from contrasted habitats (nature reserve and urban) were examined. Selected parameters included biomarkers of general stress, antioxidative defence, xenobiotic metabolism, endocrine disruption, glucose homeostasis, iron homeostasis, and neurotoxicity. Results Exposure of A. brama population from urban area to chemical stress was confirmed by assessment of chronic toxic pressure at fish habitats using Toxic...
Water, 2019
For 50 years persistent cyanobacterial blooms have been observed in Lake Ludoš (Serbia), a wetlan... more For 50 years persistent cyanobacterial blooms have been observed in Lake Ludoš (Serbia), a wetland area of international significance listed as a Ramsar site. Cyanobacteria and cyanotoxins can affect many organisms, including valuable flora and fauna, such as rare and endangered bird species living or visiting the lake. The aim was to carry out monitoring, estimate the current status of the lake, and discuss potential resolutions. Results obtained showed: (a) the poor chemical state of the lake; (b) the presence of potentially toxic (genera Dolichospermum, Microcystis, Planktothrix, Chroococcus, Oscillatoria, Woronichinia and dominant species Limnothrix redekei and Pseudanabaena limnetica) and invasive cyanobacterial species Raphidiopsis raciborskii; (c) the detection of microcystin (MC) and saxitoxin (STX) coding genes in biomass samples; (d) the detection of several microcystin variants (MC-LR, MC-dmLR, MC-RR, MC-dmRR, MC-LF) in water samples; (e) histopathological alterations in ...
ABSTRACT Initial investigations of the high-mountain lakes of Mt. Šar-planina were performed from... more ABSTRACT Initial investigations of the high-mountain lakes of Mt. Šar-planina were performed from 1996 to 1997, with the aim of studying the distribution and diversity of Oligochaeta fauna. These studies included 9 glacial lakes at an altitude ranging from 1,560 m to 2,260 m. Fourteen taxa, belonging to 12 genera and 4 families were recorded. The greatest number of taxa of Oligochaeta fauna was recorded at the Gornje (10 taxa) and Donje Tupankamensko Lakes (7 taxa). The species Nais communis, Limnodrilus hoffmeisteri and Lumbriculus variegatus were detected in six out of the nine lakes examined. The greatest number of collected specimens belonged to the species Stylodrilus lemani in the peat of Šištevačko Lake. The other species were represented by only 2-5 individuals in the lakes where they were recorded. After processing the samples, we concluded that the high-mountain lakes of Mt. Šar-planina are characterized by low diversity and low abundance of Oligochaeta fauna.
Anatomia, Histologia, Embryologia, 2014
The study evaluated the effects of waterborne pollutants from the Tamiš River on gill histology a... more The study evaluated the effects of waterborne pollutants from the Tamiš River on gill histology and possible differences in gill reaction patterns between three freshwater fish species, pike Esox lucius L. 1758, pike-perch Sander lucioperca (L. 1758) and wels catfish Silurus glanis L. 1758 from the Tamiš River. Gills from analysed fish species showed moderate to intense histopathological alterations. The most frequent progressive alteration was hyperplasia of epithelium, whereas the most frequent regressive alteration was epithelial lifting. Circulatory disturbances were most often manifested in the form of hyperaemia. During comparative analysis, differences in gill indices, reaction and alteration indices, as well as in gill and filament prevalence between analysed species, were observed. Although all analysed fish species did show both progressive and regressive alterations, there was a significant difference in the level of expression of these reaction patterns. Gill index obtained for pike clearly stands out as the lowest. Wels catfish showed the highest progressive reaction index, significantly higher in comparison with the other two species (P &lt; 0.05), while pike-perch showed the highest regressive reaction index, also significantly higher in comparison with the other species (P &lt; 0.001). These results may implicate species-specific gill reactions and thus present a useful tool for better understanding toxic mechanisms of various pollutants.
Zbornik Matice srpske za prirodne nauke, 2005
Fish is today one of the most important commercial material. In our market as in the world market... more Fish is today one of the most important commercial material. In our market as in the world market they are present in fresh and manufactured products. Fish products always have some risk. They could be contaminated with dangerous chemicals and biological contaminants. From biological originated polutions Aflatoxin and other Mycotoxins are very dangerous. The contamination starts in fish ponds, in canals and swamps. Also, the contamination occurs at storage and prepararation of fish materials. It is very important to recognize hygienically correct fish material and control fish food and different products from fish by educated inspectors (Vlahovic, 1999).
By qualitative analysis of ichthyofauna, sampled at water reservoir ‘’Moravica” in March 2008, it... more By qualitative analysis of ichthyofauna, sampled at water reservoir ‘’Moravica” in March 2008, it is concluded that there is a presence of four species (Carassius gibelio, Scardinius erythrophthalmus, Rutilus rutilus, Pseudorasbora parva) along with eudominance of Prussian Carp (Carassius gibelio). Jaccard’s index of similarity indicates that there is a small and minor similarity between ichthyofaunas at water reservoirs “Moravica” and “Zobnatica” (JQ=0.29). The results of these researches indicate that there are unfavourable ecological conditions in an examined water body, thus it is necessary to undertake a range of biomanipulative steps in order to keep this accumulation from further devastation
Concenlration of 8 healy metals (Zn, Fe, Mn, Cd, Cu, Ni, Co, Pb) and that ot Al were anallzed in ... more Concenlration of 8 healy metals (Zn, Fe, Mn, Cd, Cu, Ni, Co, Pb) and that ot Al were anallzed in certain tissues and organs (gitls, (ver, spleen. )idney, gonads and muscles) in 7 fish species with different habitats and nutrition Wes (Cypihus cutpio, Carassius aurutus, Abrunlis bru'na, Lepomis Etbosus, Stizosledion lucioperca, Esot lucius ^nd Silurus glanis) cang)lt by elcctroagregate during
Concenlration of 8 healy metals (Zn, Fe, Mn, Cd, Cu, Ni, Co, Pb) and that ot Al were anallzed in ... more Concenlration of 8 healy metals (Zn, Fe, Mn, Cd, Cu, Ni, Co, Pb) and that ot Al were anallzed in certain tissues and organs (gitls, (ver, spleen. )idney, gonads and muscles) in 7 fish species with different habitats and nutrition Wes (Cypihus cutpio, Carassius aurutus, Abrunlis bru'na, Lepomis Etbosus, Stizosledion lucioperca, Esot lucius ^nd Silurus glanis) cang)lt by elcctroagregate during
Anatomia, Histologia, Embryologia, 2014
The study evaluated the effects of waterborne pollutants from the Tami s River on gill histology ... more The study evaluated the effects of waterborne pollutants from the Tami s River on gill histology and possible differences in gill reaction patterns between three freshwater fish species, pike Esox lucius L. 1758, pike-perch Sander lucioperca (L. 1758) and wels catfish Silurus glanis L. 1758 from the Tami s River. Gills from analysed fish species showed moderate to intense histopathological alterations. The most frequent progressive alteration was hyperplasia of epithelium, whereas the most frequent regressive alteration was epithelial lifting. Circulatory disturbances were most often manifested in the form of hyperaemia. During comparative analysis, differences in gill indices, reaction and alteration indices, as well as in gill and filament prevalence between analysed species, were observed. Although all analysed fish species did show both progressive and regressive alterations, there was a significant difference in the level of expression of these reaction patterns. Gill index obtained for pike clearly stands out as the lowest. Wels catfish showed the highest progressive reaction index, significantly higher in comparison with the other two species (P < 0.05), while pike-perch showed the highest regressive reaction index, also significantly higher in comparison with the other species (P < 0.001). These results may implicate species-specific gill reactions and thus present a useful tool for better understanding toxic mechanisms of various pollutants.
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Papers by Branko Miljanovic