TY  - JOUR
AU  - Vermaat, Jan E.
AU  - Biberdžić, Vera
AU  - Braho, Vjola
AU  - Budzakoska Gjoreska, Biljana
AU  - Cara, Magdalena
AU  - Dana, Zamira
AU  - Đurašković, Pavle
AU  - Eriksen, Tor Erik
AU  - Hjermann, Dag
AU  - Imeri, Alma
AU  - Jovanović, Katarina
AU  - Krizmanić, Jelena
AU  - Kupe, Lirika
AU  - Loshkoska, Tatjana
AU  - Lynn Kemp, Joanna
AU  - Marković, Aleksandra
AU  - Patceva, Suzana
AU  - Rakočević, Jelena
AU  - Stojanović, Katarina
AU  - Talevska, Marina
AU  - Trajanovska, Sonja
AU  - Trajanovski, Sasho
AU  - Veljanoska-Sarafiloska, Elizabeta
AU  - Vidaković, Danijela
AU  - Zdraveski, Konstantin
AU  - Živić, Ivana
AU  - C. Schneider, Susanne
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4752
AB  - Along six transects in each of six lakes across the Western Balkans, we collected data for three groups of littoral biological water quality indicators: epilithic diatoms, macrophytes, and benthic invertebrates. We assessed the relationships between them and three environmental pressures: nutrient load (eutrophication), hydro-morphological alteration of the shoreline, and water level variation, separating the effect of individual lakes and continuous explanatory variables. Lake water total phosphorus concentration (TP) showed substantial variation but was not related to any of the tested biological indicators, nor to any of the tested pressures. We suggest that this may be due to feedback processes such as P removal in the lake littoral zone. Instead, we found that a gradient in surrounding land-use towards increasing urbanization, and a land-use-based estimate of P run-off, served as a better descriptor of eutrophication. Overall, eutrophication and water level fluctuation were most important for explaining variation in the assessed indicators, whereas shoreline hydro-morphological alteration was less important. Diatom indicators were most responsive to all three pressures, whereas macrophyte biomass and species number responded only to water level fluctuation. The Trophic Diatom Index for Lakes (TDIL) was negatively related to urbanization and wave exposure. This indicates that it is a suitable indicator for pressures related to urbanization, although a confounding effect of wave exposure is possible. Invertebrate abundance responded strongly to eutrophication, but the indicator based on taxonomic composition (Average Score Per Taxon) did not. Our results suggest that our metrics can be applied in Western Balkan lakes, despite the high number of endemic species present in some of these lakes. We argue that local water management should focus on abating the causes of eutrophication and water level fluctuation, whilst preserving sufficient lengths of undeveloped shoreline to ensure good water quality in the long run.
PB  - Elsevier
T2  - Science of the Total Environment
T1  - Relating environmental pressures to littoral biological water quality indicators in Western Balkan lakes: Can we fill the largest gaps?
VL  - 804
SP  - 150160
DO  - 10.1016/j.scitotenv.2021.150160
ER  - 

@article{
author = "Vermaat, Jan E. and Biberdžić, Vera and Braho, Vjola and Budzakoska Gjoreska, Biljana and Cara, Magdalena and Dana, Zamira and Đurašković, Pavle and Eriksen, Tor Erik and Hjermann, Dag and Imeri, Alma and Jovanović, Katarina and Krizmanić, Jelena and Kupe, Lirika and Loshkoska, Tatjana and Lynn Kemp, Joanna and Marković, Aleksandra and Patceva, Suzana and Rakočević, Jelena and Stojanović, Katarina and Talevska, Marina and Trajanovska, Sonja and Trajanovski, Sasho and Veljanoska-Sarafiloska, Elizabeta and Vidaković, Danijela and Zdraveski, Konstantin and Živić, Ivana and C. Schneider, Susanne",
year = "2022",
abstract = "Along six transects in each of six lakes across the Western Balkans, we collected data for three groups of littoral biological water quality indicators: epilithic diatoms, macrophytes, and benthic invertebrates. We assessed the relationships between them and three environmental pressures: nutrient load (eutrophication), hydro-morphological alteration of the shoreline, and water level variation, separating the effect of individual lakes and continuous explanatory variables. Lake water total phosphorus concentration (TP) showed substantial variation but was not related to any of the tested biological indicators, nor to any of the tested pressures. We suggest that this may be due to feedback processes such as P removal in the lake littoral zone. Instead, we found that a gradient in surrounding land-use towards increasing urbanization, and a land-use-based estimate of P run-off, served as a better descriptor of eutrophication. Overall, eutrophication and water level fluctuation were most important for explaining variation in the assessed indicators, whereas shoreline hydro-morphological alteration was less important. Diatom indicators were most responsive to all three pressures, whereas macrophyte biomass and species number responded only to water level fluctuation. The Trophic Diatom Index for Lakes (TDIL) was negatively related to urbanization and wave exposure. This indicates that it is a suitable indicator for pressures related to urbanization, although a confounding effect of wave exposure is possible. Invertebrate abundance responded strongly to eutrophication, but the indicator based on taxonomic composition (Average Score Per Taxon) did not. Our results suggest that our metrics can be applied in Western Balkan lakes, despite the high number of endemic species present in some of these lakes. We argue that local water management should focus on abating the causes of eutrophication and water level fluctuation, whilst preserving sufficient lengths of undeveloped shoreline to ensure good water quality in the long run.",
publisher = "Elsevier",
journal = "Science of the Total Environment",
title = "Relating environmental pressures to littoral biological water quality indicators in Western Balkan lakes: Can we fill the largest gaps?",
volume = "804",
pages = "150160",
doi = "10.1016/j.scitotenv.2021.150160"
}

Vermaat, J. E., Biberdžić, V., Braho, V., Budzakoska Gjoreska, B., Cara, M., Dana, Z., Đurašković, P., Eriksen, T. E., Hjermann, D., Imeri, A., Jovanović, K., Krizmanić, J., Kupe, L., Loshkoska, T., Lynn Kemp, J., Marković, A., Patceva, S., Rakočević, J., Stojanović, K., Talevska, M., Trajanovska, S., Trajanovski, S., Veljanoska-Sarafiloska, E., Vidaković, D., Zdraveski, K., Živić, I.,& C. Schneider, S.. (2022). Relating environmental pressures to littoral biological water quality indicators in Western Balkan lakes: Can we fill the largest gaps?. in Science of the Total Environment
Elsevier., 804, 150160.
https://doi.org/10.1016/j.scitotenv.2021.150160

Vermaat JE, Biberdžić V, Braho V, Budzakoska Gjoreska B, Cara M, Dana Z, Đurašković P, Eriksen TE, Hjermann D, Imeri A, Jovanović K, Krizmanić J, Kupe L, Loshkoska T, Lynn Kemp J, Marković A, Patceva S, Rakočević J, Stojanović K, Talevska M, Trajanovska S, Trajanovski S, Veljanoska-Sarafiloska E, Vidaković D, Zdraveski K, Živić I, C. Schneider S. Relating environmental pressures to littoral biological water quality indicators in Western Balkan lakes: Can we fill the largest gaps?. in Science of the Total Environment. 2022;804:150160.
doi:10.1016/j.scitotenv.2021.150160 .

Vermaat, Jan E., Biberdžić, Vera, Braho, Vjola, Budzakoska Gjoreska, Biljana, Cara, Magdalena, Dana, Zamira, Đurašković, Pavle, Eriksen, Tor Erik, Hjermann, Dag, Imeri, Alma, Jovanović, Katarina, Krizmanić, Jelena, Kupe, Lirika, Loshkoska, Tatjana, Lynn Kemp, Joanna, Marković, Aleksandra, Patceva, Suzana, Rakočević, Jelena, Stojanović, Katarina, Talevska, Marina, Trajanovska, Sonja, Trajanovski, Sasho, Veljanoska-Sarafiloska, Elizabeta, Vidaković, Danijela, Zdraveski, Konstantin, Živić, Ivana, C. Schneider, Susanne, "Relating environmental pressures to littoral biological water quality indicators in Western Balkan lakes: Can we fill the largest gaps?" in Science of the Total Environment, 804 (2022):150160,
https://doi.org/10.1016/j.scitotenv.2021.150160 . .

TY  - JOUR
AU  - Schneider, Susanne C.
AU  - Biberdžić, Vera
AU  - Braho, Vjola
AU  - Budzakoska Gjoreska, Biljana
AU  - Cara, Magdalena
AU  - Dana, Zamira
AU  - Đurašković, Pavle
AU  - Eriksen, Tor Erik
AU  - Hjermann, Dag
AU  - Imeri, Alma
AU  - Jovanović, Katarina
AU  - Krizmanić, Jelena
AU  - Kupe, Lirika
AU  - Loshkoska, Tatjana
AU  - Lynn Kemp, Joanna
AU  - Marković, Aleksandra
AU  - Patceva, Suzana
AU  - Rakočević, Jelena
AU  - Stojanović, Katarina
AU  - Talevska, Marina
AU  - Trajanovska, Sonja
AU  - Trajanovski, Sasho
AU  - Veljanoska-Sarafiloska, Elizabeta
AU  - Vidaković, Danijela
AU  - Zdraveski, Konstantin
AU  - Živić, Ivana
AU  - Vermaat, Jan E.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3674
AB  - Biological assessmentmetrics and water chemistry measurements are used to quantify the link between stressors
and their effects on lake ecosystems, for the Water Framework Directive. However, correlations between metrics
andwater chemistry are often poor. This is seen as majorweaknesses ofWater Framework Directive-relatedmonitoring
and assessment.We analyzed macrophytes, benthic algae, benthic macroinvertebrates, water chemistry
and sediment total phosphorus content in the littoral of six lakes in the Western Balkans and used CORINE land
use data to estimate nutrient enrichment via runoff from the adjacent land. Lakes with a higher estimated phosphorus
runoff fromthe adjacent land did not have higher littoralwater nutrient concentrations, but littoral diatom
assemblages indicated more eutrophic conditions. These lakes also had higher abundances of littoral benthic primaryproducers,
which in turnwere associatedwithlowconcentrations of dissolved nutrients, but only in autumn,
not in spring. This is consistent with primary producers taking up nutrients during the summer growth season. In
lakeswith high abundances of benthic primary producers, it is likely that the littoral vegetation plays a large role in
the transfer of nutrients from the water to the benthos. This process impairs correlations between biological metrics
and water nutrient concentrations. Our results suggest that CORINE land cover may be more useful to characterize
littoral nutrient enrichment than lake water chemistry. Increased benthic primary producer biomasses and
“eutrophic” diatom indicesmay indicate littoral nutrient enrichment even ifwater nutrient concentrations are low
PB  - Elsevier
T2  - Science of the Total Environment
T1  - Littoral eutrophication indicators are more closely related to nearshore land use than to water nutrient concentrations: A critical evaluation of stressor-response relationships
VL  - 748
SP  - 141193
DO  - 10.1016/j.scitotenv.2020.141193
ER  - 

@article{
author = "Schneider, Susanne C. and Biberdžić, Vera and Braho, Vjola and Budzakoska Gjoreska, Biljana and Cara, Magdalena and Dana, Zamira and Đurašković, Pavle and Eriksen, Tor Erik and Hjermann, Dag and Imeri, Alma and Jovanović, Katarina and Krizmanić, Jelena and Kupe, Lirika and Loshkoska, Tatjana and Lynn Kemp, Joanna and Marković, Aleksandra and Patceva, Suzana and Rakočević, Jelena and Stojanović, Katarina and Talevska, Marina and Trajanovska, Sonja and Trajanovski, Sasho and Veljanoska-Sarafiloska, Elizabeta and Vidaković, Danijela and Zdraveski, Konstantin and Živić, Ivana and Vermaat, Jan E.",
year = "2020",
abstract = "Biological assessmentmetrics and water chemistry measurements are used to quantify the link between stressors
and their effects on lake ecosystems, for the Water Framework Directive. However, correlations between metrics
andwater chemistry are often poor. This is seen as majorweaknesses ofWater Framework Directive-relatedmonitoring
and assessment.We analyzed macrophytes, benthic algae, benthic macroinvertebrates, water chemistry
and sediment total phosphorus content in the littoral of six lakes in the Western Balkans and used CORINE land
use data to estimate nutrient enrichment via runoff from the adjacent land. Lakes with a higher estimated phosphorus
runoff fromthe adjacent land did not have higher littoralwater nutrient concentrations, but littoral diatom
assemblages indicated more eutrophic conditions. These lakes also had higher abundances of littoral benthic primaryproducers,
which in turnwere associatedwithlowconcentrations of dissolved nutrients, but only in autumn,
not in spring. This is consistent with primary producers taking up nutrients during the summer growth season. In
lakeswith high abundances of benthic primary producers, it is likely that the littoral vegetation plays a large role in
the transfer of nutrients from the water to the benthos. This process impairs correlations between biological metrics
and water nutrient concentrations. Our results suggest that CORINE land cover may be more useful to characterize
littoral nutrient enrichment than lake water chemistry. Increased benthic primary producer biomasses and
“eutrophic” diatom indicesmay indicate littoral nutrient enrichment even ifwater nutrient concentrations are low",
publisher = "Elsevier",
journal = "Science of the Total Environment",
title = "Littoral eutrophication indicators are more closely related to nearshore land use than to water nutrient concentrations: A critical evaluation of stressor-response relationships",
volume = "748",
pages = "141193",
doi = "10.1016/j.scitotenv.2020.141193"
}

Schneider, S. C., Biberdžić, V., Braho, V., Budzakoska Gjoreska, B., Cara, M., Dana, Z., Đurašković, P., Eriksen, T. E., Hjermann, D., Imeri, A., Jovanović, K., Krizmanić, J., Kupe, L., Loshkoska, T., Lynn Kemp, J., Marković, A., Patceva, S., Rakočević, J., Stojanović, K., Talevska, M., Trajanovska, S., Trajanovski, S., Veljanoska-Sarafiloska, E., Vidaković, D., Zdraveski, K., Živić, I.,& Vermaat, J. E.. (2020). Littoral eutrophication indicators are more closely related to nearshore land use than to water nutrient concentrations: A critical evaluation of stressor-response relationships. in Science of the Total Environment
Elsevier., 748, 141193.
https://doi.org/10.1016/j.scitotenv.2020.141193

Schneider SC, Biberdžić V, Braho V, Budzakoska Gjoreska B, Cara M, Dana Z, Đurašković P, Eriksen TE, Hjermann D, Imeri A, Jovanović K, Krizmanić J, Kupe L, Loshkoska T, Lynn Kemp J, Marković A, Patceva S, Rakočević J, Stojanović K, Talevska M, Trajanovska S, Trajanovski S, Veljanoska-Sarafiloska E, Vidaković D, Zdraveski K, Živić I, Vermaat JE. Littoral eutrophication indicators are more closely related to nearshore land use than to water nutrient concentrations: A critical evaluation of stressor-response relationships. in Science of the Total Environment. 2020;748:141193.
doi:10.1016/j.scitotenv.2020.141193 .

Schneider, Susanne C., Biberdžić, Vera, Braho, Vjola, Budzakoska Gjoreska, Biljana, Cara, Magdalena, Dana, Zamira, Đurašković, Pavle, Eriksen, Tor Erik, Hjermann, Dag, Imeri, Alma, Jovanović, Katarina, Krizmanić, Jelena, Kupe, Lirika, Loshkoska, Tatjana, Lynn Kemp, Joanna, Marković, Aleksandra, Patceva, Suzana, Rakočević, Jelena, Stojanović, Katarina, Talevska, Marina, Trajanovska, Sonja, Trajanovski, Sasho, Veljanoska-Sarafiloska, Elizabeta, Vidaković, Danijela, Zdraveski, Konstantin, Živić, Ivana, Vermaat, Jan E., "Littoral eutrophication indicators are more closely related to nearshore land use than to water nutrient concentrations: A critical evaluation of stressor-response relationships" in Science of the Total Environment, 748 (2020):141193,
https://doi.org/10.1016/j.scitotenv.2020.141193 . .

TY  - JOUR
AU  - Schneider, Susanne
AU  - Trajanovska, Sonja
AU  - Biberdžić, Vera
AU  - Marković, Aleksandra
AU  - Talevska, Marina
AU  - Imeri, Alma
AU  - Veljanoska-Sarafiloska, Elizabeta
AU  - Đurašković, Pavle
AU  - Jovanović, Katarina
AU  - Cara, Magdalena
PY  - 2020
UR  - https://www.acta-zoologica-bulgarica.eu/002370.pdf
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3973
AB  - Aquatic plants have long been used as indicators for nutrient enrichment in lakes. In the Mediterranean, however, the process of developing and intercalibrating macrophyte assessment methods for lakes has lagged behind Northern and Central Europe, likely due to the relatively small number and high variability of natural lakes in the Mediterranean but also because of the different monitoring traditions in different parts of Europe. We here present a macrophyte index for assessment of lake eutrophication, tailored to Balkan lakes (Balkan Macrophyte Index, BMI). We analysed submerged aquatic vegetation, water chemistry and sediment total phosphorus content at several sites in lakes Prespa, Ohrid, Lura, Biogradsko, Crno and Sava, located in Albania, North Macedonia, Montenegro and Serbia. Despite the restricted number of lakes in our dataset, the BMI was loosely related to water phosphorus, rather than nitrogen, concentrations. Our results show that macrophyte indices may not be applicable in lakes experiencing annual water level fluctuations of several meters, because the macrophyte vegetation in such lakes may be absent, or alternatively dominated by “oligotrophic” or “eutrophic” species. Once a larger number of lakes has been analysed using the same methods, reference conditions and status class boundaries may be derived from the phosphorus – BMI regression.
PB  - Sofia, Bulgaria : Prof. Marin Drinov Academic Publishing House
T2  - Acta Zoologica Bulgarica
T1  - The Balkan Macrophyte Index (BMI) for Assessment of Eutrophication in Lakes
VL  - 72
IS  - 3
SP  - 439
EP  - 454
UR  - https://hdl.handle.net/21.15107/rcub_cer_3973
ER  - 

@article{
author = "Schneider, Susanne and Trajanovska, Sonja and Biberdžić, Vera and Marković, Aleksandra and Talevska, Marina and Imeri, Alma and Veljanoska-Sarafiloska, Elizabeta and Đurašković, Pavle and Jovanović, Katarina and Cara, Magdalena",
year = "2020",
abstract = "Aquatic plants have long been used as indicators for nutrient enrichment in lakes. In the Mediterranean, however, the process of developing and intercalibrating macrophyte assessment methods for lakes has lagged behind Northern and Central Europe, likely due to the relatively small number and high variability of natural lakes in the Mediterranean but also because of the different monitoring traditions in different parts of Europe. We here present a macrophyte index for assessment of lake eutrophication, tailored to Balkan lakes (Balkan Macrophyte Index, BMI). We analysed submerged aquatic vegetation, water chemistry and sediment total phosphorus content at several sites in lakes Prespa, Ohrid, Lura, Biogradsko, Crno and Sava, located in Albania, North Macedonia, Montenegro and Serbia. Despite the restricted number of lakes in our dataset, the BMI was loosely related to water phosphorus, rather than nitrogen, concentrations. Our results show that macrophyte indices may not be applicable in lakes experiencing annual water level fluctuations of several meters, because the macrophyte vegetation in such lakes may be absent, or alternatively dominated by “oligotrophic” or “eutrophic” species. Once a larger number of lakes has been analysed using the same methods, reference conditions and status class boundaries may be derived from the phosphorus – BMI regression.",
publisher = "Sofia, Bulgaria : Prof. Marin Drinov Academic Publishing House",
journal = "Acta Zoologica Bulgarica",
title = "The Balkan Macrophyte Index (BMI) for Assessment of Eutrophication in Lakes",
volume = "72",
number = "3",
pages = "439-454",
url = "https://hdl.handle.net/21.15107/rcub_cer_3973"
}

Schneider, S., Trajanovska, S., Biberdžić, V., Marković, A., Talevska, M., Imeri, A., Veljanoska-Sarafiloska, E., Đurašković, P., Jovanović, K.,& Cara, M.. (2020). The Balkan Macrophyte Index (BMI) for Assessment of Eutrophication in Lakes. in Acta Zoologica Bulgarica
Sofia, Bulgaria : Prof. Marin Drinov Academic Publishing House., 72(3), 439-454.
https://hdl.handle.net/21.15107/rcub_cer_3973

Schneider S, Trajanovska S, Biberdžić V, Marković A, Talevska M, Imeri A, Veljanoska-Sarafiloska E, Đurašković P, Jovanović K, Cara M. The Balkan Macrophyte Index (BMI) for Assessment of Eutrophication in Lakes. in Acta Zoologica Bulgarica. 2020;72(3):439-454.
https://hdl.handle.net/21.15107/rcub_cer_3973 .

Schneider, Susanne, Trajanovska, Sonja, Biberdžić, Vera, Marković, Aleksandra, Talevska, Marina, Imeri, Alma, Veljanoska-Sarafiloska, Elizabeta, Đurašković, Pavle, Jovanović, Katarina, Cara, Magdalena, "The Balkan Macrophyte Index (BMI) for Assessment of Eutrophication in Lakes" in Acta Zoologica Bulgarica, 72, no. 3 (2020):439-454,
https://hdl.handle.net/21.15107/rcub_cer_3973 .

TY  - CONF
AU  - Vidaković, Danijela
AU  - Rakočević, Jelena
AU  - Patceva, Suzana
AU  - Loshkoska, Tatjana
AU  - Kupe, Lirika
AU  - Jovanović, Katarina
AU  - Veljanoska Sarafiloska, Elizabeta
AU  - Cara, Magdalena
AU  - Đurašković, Pavle
AU  - Braho, Vjola
AU  - Duka, Irena
AU  - Schneider, Susanne
AU  - Krizmanić, Jelena
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4623
AB  - During 2016-2017 six Balkan lakes were investigated: Sava Lake in Serbia, Ohrid Lake and Prespa Lake in North Macedonia and Albania, Great Lake in Albania, Biogradsko Lake and Crno Lake in Montenegro. Epilithic diatom samples were collected from 6 localities around each lake with the aim to test the applicability of diatom indices for ecological assessment of Balkan lakes. Also, water samples for chemical analysis were taken. Based on the concentrations of total phosphorus and BOD (biochemical oxygen demand) two lakes (Ohrid and Crno) were oligotrophic and oligosaprobic, while the other four lakes were mesotrophic and β-mesosaprobic, respectively. The highest diversity of dominant taxa was recorded in Ohrid and Prespa, and one of the dominant taxa was the endemic species Gomphonema paratergestinum. Diatom communities in lakes Sava and Crno were dominated by Achnanthidim minutissimum and Encyonopsis microcephala. According to Serbian legislation, the IPS index is used for the assessment of the ecological status of lakes, while in North Macedonia, Albania and Montenegro National Monitoring Systems do not yet include officially accepted diatom indices. In our results, the diatom indices IPS and IBD had the highest inclusion of diatom taxa, in some lakes almost 100%. The lowest inclusion of diatom taxa had the TDIL index. Values of IPS and IBD indices indicated very good water quality for Great Lake, Crno and Biogradsko, and good for Prespa. The water quality of Ohrid and Sava was between very good and good. Values of trophic indices (Rott TI and TDIL) indicated a very low concentration of nutrients in the Sava, Great Lake and Biogradsko, low in Ohrid and Prespa and low to the very low concentration of nutrients in Crno. The development and establishment of monitoring systems in lakes according to the requirements of the Water Framework Directive (WFD) is essential for all European countries and more comprehensive ecological investigations of Balkan lakes are necessary to be able to fulfill these demands.
PB  - Taylor & Francis
C3  - European Journal of Phycology (Posters)
T1  - Testing the applicability of diatom indices for ecological assessment of Balkan lakes
VL  - 54
IS  - sup1
SP  - 191
EP  - 192
DO  - 10.1080/09670262.2019.1626628
ER  - 

@conference{
author = "Vidaković, Danijela and Rakočević, Jelena and Patceva, Suzana and Loshkoska, Tatjana and Kupe, Lirika and Jovanović, Katarina and Veljanoska Sarafiloska, Elizabeta and Cara, Magdalena and Đurašković, Pavle and Braho, Vjola and Duka, Irena and Schneider, Susanne and Krizmanić, Jelena",
year = "2019",
abstract = "During 2016-2017 six Balkan lakes were investigated: Sava Lake in Serbia, Ohrid Lake and Prespa Lake in North Macedonia and Albania, Great Lake in Albania, Biogradsko Lake and Crno Lake in Montenegro. Epilithic diatom samples were collected from 6 localities around each lake with the aim to test the applicability of diatom indices for ecological assessment of Balkan lakes. Also, water samples for chemical analysis were taken. Based on the concentrations of total phosphorus and BOD (biochemical oxygen demand) two lakes (Ohrid and Crno) were oligotrophic and oligosaprobic, while the other four lakes were mesotrophic and β-mesosaprobic, respectively. The highest diversity of dominant taxa was recorded in Ohrid and Prespa, and one of the dominant taxa was the endemic species Gomphonema paratergestinum. Diatom communities in lakes Sava and Crno were dominated by Achnanthidim minutissimum and Encyonopsis microcephala. According to Serbian legislation, the IPS index is used for the assessment of the ecological status of lakes, while in North Macedonia, Albania and Montenegro National Monitoring Systems do not yet include officially accepted diatom indices. In our results, the diatom indices IPS and IBD had the highest inclusion of diatom taxa, in some lakes almost 100%. The lowest inclusion of diatom taxa had the TDIL index. Values of IPS and IBD indices indicated very good water quality for Great Lake, Crno and Biogradsko, and good for Prespa. The water quality of Ohrid and Sava was between very good and good. Values of trophic indices (Rott TI and TDIL) indicated a very low concentration of nutrients in the Sava, Great Lake and Biogradsko, low in Ohrid and Prespa and low to the very low concentration of nutrients in Crno. The development and establishment of monitoring systems in lakes according to the requirements of the Water Framework Directive (WFD) is essential for all European countries and more comprehensive ecological investigations of Balkan lakes are necessary to be able to fulfill these demands.",
publisher = "Taylor & Francis",
journal = "European Journal of Phycology (Posters)",
title = "Testing the applicability of diatom indices for ecological assessment of Balkan lakes",
volume = "54",
number = "sup1",
pages = "191-192",
doi = "10.1080/09670262.2019.1626628"
}

Vidaković, D., Rakočević, J., Patceva, S., Loshkoska, T., Kupe, L., Jovanović, K., Veljanoska Sarafiloska, E., Cara, M., Đurašković, P., Braho, V., Duka, I., Schneider, S.,& Krizmanić, J.. (2019). Testing the applicability of diatom indices for ecological assessment of Balkan lakes. in European Journal of Phycology (Posters)
Taylor & Francis., 54(sup1), 191-192.
https://doi.org/10.1080/09670262.2019.1626628

Vidaković D, Rakočević J, Patceva S, Loshkoska T, Kupe L, Jovanović K, Veljanoska Sarafiloska E, Cara M, Đurašković P, Braho V, Duka I, Schneider S, Krizmanić J. Testing the applicability of diatom indices for ecological assessment of Balkan lakes. in European Journal of Phycology (Posters). 2019;54(sup1):191-192.
doi:10.1080/09670262.2019.1626628 .

Vidaković, Danijela, Rakočević, Jelena, Patceva, Suzana, Loshkoska, Tatjana, Kupe, Lirika, Jovanović, Katarina, Veljanoska Sarafiloska, Elizabeta, Cara, Magdalena, Đurašković, Pavle, Braho, Vjola, Duka, Irena, Schneider, Susanne, Krizmanić, Jelena, "Testing the applicability of diatom indices for ecological assessment of Balkan lakes" in European Journal of Phycology (Posters), 54, no. sup1 (2019):191-192,
https://doi.org/10.1080/09670262.2019.1626628 . .

TY  - CONF
AU  - Stojanović, Katarina
AU  - Vidaković, Danijela
AU  - Živić, Ivana
AU  - Krizmanić, Jelena
AU  - Trajanovski, Sasho
AU  - Eriksen, Tor Erik
AU  - Zdraveski, Konstantin
AU  - Patceva, Susanne
AU  - Jovanović, Katarina
AU  - Đurašković, Pavle
AU  - Braho, Vjola
AU  - Duka, Irena
AU  - Schneider, Susanne
PY  - 2019
UR  - http://www.sefs11.biol.pmf.hr/wp-content/uploads/2019/07/Book-of-abstract.pdf
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4616
AB  - Sava Lake was created from the right arm of the Sava River, and the inhabitants of Belgrade use the lake intensively for swimming and bathing. We analysed macrozoobenthos and epilithic diatom communities at six sites from April to October 2017, to assess the ecological status of Sava Lake according to the National legislation of Serbia. Considering macrozoobenthos communities, the mean values of Zelinka and Marvan saprobity index indicated high ecological status. In contrast, results obtained from the mean values of BMWP (Biological Monitoring Working Party) scores suggested moderate to poor ecological status. The mean values of the IPS diatom index (Indice de Polluo-sensibilité) indicated high ecological status, while the TDIL index (Trophic Diatom Index for lakes) was slightly more sensitive and indicated good ecological status. Water chemical parameters indicated that Sava Lake was mainly oligotrophic during the study period (average total phosphorus concentrations were 10.7 μgL-1 and average total nitrogen concentrations 410 μgL-1). Before being able to adopt an integrative approach for ecological status assessment (combining two or more biological quality elements), more studies must be performed on how to choose the most sensitive and adequate indices. This is especially true for lakes experiencing intensive anthropogenic pressure during the summer season. Also, the boundary values in the National legislation of Serbia must be adapted for lakes, such as Sava Lake.
PB  - Zagreb : Croatian Association of Freshwater Ecologists
C3  - Abstract book - 11th Symposium for European Freshwater Sciences
T1  - Who is the better candidate? Macroinvertebrates and diatoms for ecological status assessment of Sava Lake (Serbia)
SP  - 492
EP  - 492
UR  - https://hdl.handle.net/21.15107/rcub_cer_4616
ER  - 

@conference{
author = "Stojanović, Katarina and Vidaković, Danijela and Živić, Ivana and Krizmanić, Jelena and Trajanovski, Sasho and Eriksen, Tor Erik and Zdraveski, Konstantin and Patceva, Susanne and Jovanović, Katarina and Đurašković, Pavle and Braho, Vjola and Duka, Irena and Schneider, Susanne",
year = "2019",
abstract = "Sava Lake was created from the right arm of the Sava River, and the inhabitants of Belgrade use the lake intensively for swimming and bathing. We analysed macrozoobenthos and epilithic diatom communities at six sites from April to October 2017, to assess the ecological status of Sava Lake according to the National legislation of Serbia. Considering macrozoobenthos communities, the mean values of Zelinka and Marvan saprobity index indicated high ecological status. In contrast, results obtained from the mean values of BMWP (Biological Monitoring Working Party) scores suggested moderate to poor ecological status. The mean values of the IPS diatom index (Indice de Polluo-sensibilité) indicated high ecological status, while the TDIL index (Trophic Diatom Index for lakes) was slightly more sensitive and indicated good ecological status. Water chemical parameters indicated that Sava Lake was mainly oligotrophic during the study period (average total phosphorus concentrations were 10.7 μgL-1 and average total nitrogen concentrations 410 μgL-1). Before being able to adopt an integrative approach for ecological status assessment (combining two or more biological quality elements), more studies must be performed on how to choose the most sensitive and adequate indices. This is especially true for lakes experiencing intensive anthropogenic pressure during the summer season. Also, the boundary values in the National legislation of Serbia must be adapted for lakes, such as Sava Lake.",
publisher = "Zagreb : Croatian Association of Freshwater Ecologists",
journal = "Abstract book - 11th Symposium for European Freshwater Sciences",
title = "Who is the better candidate? Macroinvertebrates and diatoms for ecological status assessment of Sava Lake (Serbia)",
pages = "492-492",
url = "https://hdl.handle.net/21.15107/rcub_cer_4616"
}

Stojanović, K., Vidaković, D., Živić, I., Krizmanić, J., Trajanovski, S., Eriksen, T. E., Zdraveski, K., Patceva, S., Jovanović, K., Đurašković, P., Braho, V., Duka, I.,& Schneider, S.. (2019). Who is the better candidate? Macroinvertebrates and diatoms for ecological status assessment of Sava Lake (Serbia). in Abstract book - 11th Symposium for European Freshwater Sciences
Zagreb : Croatian Association of Freshwater Ecologists., 492-492.
https://hdl.handle.net/21.15107/rcub_cer_4616

Stojanović K, Vidaković D, Živić I, Krizmanić J, Trajanovski S, Eriksen TE, Zdraveski K, Patceva S, Jovanović K, Đurašković P, Braho V, Duka I, Schneider S. Who is the better candidate? Macroinvertebrates and diatoms for ecological status assessment of Sava Lake (Serbia). in Abstract book - 11th Symposium for European Freshwater Sciences. 2019;:492-492.
https://hdl.handle.net/21.15107/rcub_cer_4616 .

Stojanović, Katarina, Vidaković, Danijela, Živić, Ivana, Krizmanić, Jelena, Trajanovski, Sasho, Eriksen, Tor Erik, Zdraveski, Konstantin, Patceva, Susanne, Jovanović, Katarina, Đurašković, Pavle, Braho, Vjola, Duka, Irena, Schneider, Susanne, "Who is the better candidate? Macroinvertebrates and diatoms for ecological status assessment of Sava Lake (Serbia)" in Abstract book - 11th Symposium for European Freshwater Sciences (2019):492-492,
https://hdl.handle.net/21.15107/rcub_cer_4616 .