Περιλαμβάνονται, με χρονολογική σειρά, δημοσιεύσεις στις οποίες έχουν χρησιμοποιηθεί δεδομένα από το εθνικό δίκτυο παρακολούθησης λιμνών.
Δημοσιεύσεις σε επιστημονικά περιοδικά
Doulgeris, Charalampos; Ntislidou, Chrysoula; Petriki, Olga; Zervas, Dimitrios; Nikolaidou, Rafaela; Bobori, Dimitra C.
Assessment of Environmentally Minimum Water Level in a Mediterranean Lake Using Morphological, Hydrological and Biological Factors Δημοσίευση σε επιστημονικό περιοδικό
In: Sustainability, vol. 16, no. 2, 2024, ISSN: 2071-1050.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Building and Construction, Geography, Management, Monitoring, Planning and Development, Policy and Law, Renewable Energy, Sustainability and the Environment
@article{Doulgeris2024,
title = {Assessment of Environmentally Minimum Water Level in a Mediterranean Lake Using Morphological, Hydrological and Biological Factors},
author = {Charalampos Doulgeris and Chrysoula Ntislidou and Olga Petriki and Dimitrios Zervas and Rafaela Nikolaidou and Dimitra C. Bobori},
doi = {10.3390/su16020933},
issn = {2071-1050},
year = {2024},
date = {2024-01-22},
urldate = {2024-01-22},
journal = {Sustainability},
volume = {16},
number = {2},
publisher = {MDPI AG},
abstract = {Water resources management requires comprehensive and integrated approaches that jointly consider hydrological, ecological and social factors. The assessment of lakes’ environmentally minimum water level is a critical tool for the sustainable management and protection of their ecosystems. This work combines the morphological, hydrological and biological factors of a Mediterranean lake (Lake Volvi, northern Greece) to assess its environmentally minimum water level. Initially, the morphological characteristics of the lake’s bottom were analyzed, with consideration given to the protection of the lake’s ecosystem and to the need to meet the water requirements for economic activities. Then, a hydromorphological analysis was conducted, relying on the surface water inflows to the lake from its hydrological catchment and the lake’s water level -volume relationship. In addition, the water level requirements of the biological communities of macrophytes, benthic macroinvertebrates, and fish, as revealed after samplings were taken from the lake’s littoral zone, are considered. Based on the above methodologies, the environmentally minimum water level of Lake Volvi is proposed to be lowered by as much as 35.8 m from February to May and 35.3 m from June to January in order to maintain the ecological integrity of the lake and the sustainable use of its water resources. The present study establishes a foundation for informed water resource management; however, ongoing research can improve methodologies and address emerging questions, fostering advancements in sustainable water management practices.},
keywords = {Building and Construction, Geography, Management, Monitoring, Planning and Development, Policy and Law, Renewable Energy, Sustainability and the Environment},
pubstate = {published},
tppubtype = {article}
}
Water resources management requires comprehensive and integrated approaches that jointly consider hydrological, ecological and social factors. The assessment of lakes’ environmentally minimum water level is a critical tool for the sustainable management and protection of their ecosystems. This work combines the morphological, hydrological and biological factors of a Mediterranean lake (Lake Volvi, northern Greece) to assess its environmentally minimum water level. Initially, the morphological characteristics of the lake’s bottom were analyzed, with consideration given to the protection of the lake’s ecosystem and to the need to meet the water requirements for economic activities. Then, a hydromorphological analysis was conducted, relying on the surface water inflows to the lake from its hydrological catchment and the lake’s water level -volume relationship. In addition, the water level requirements of the biological communities of macrophytes, benthic macroinvertebrates, and fish, as revealed after samplings were taken from the lake’s littoral zone, are considered. Based on the above methodologies, the environmentally minimum water level of Lake Volvi is proposed to be lowered by as much as 35.8 m from February to May and 35.3 m from June to January in order to maintain the ecological integrity of the lake and the sustainable use of its water resources. The present study establishes a foundation for informed water resource management; however, ongoing research can improve methodologies and address emerging questions, fostering advancements in sustainable water management practices.
Papadimos, Dimitris; Demertzi, Kleoniki; Papamichail, Dimitris
Assessing Lake Response to Extreme Climate Change Using the Coupled MIKE SHE/MIKE 11 Model: Case Study of Lake Zazari in Greece Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 14, no. 6, 2022, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Papadimos2022,
title = {Assessing Lake Response to Extreme Climate Change Using the Coupled MIKE SHE/MIKE 11 Model: Case Study of Lake Zazari in Greece},
author = {Dimitris Papadimos and Kleoniki Demertzi and Dimitris Papamichail},
doi = {10.3390/w14060921},
issn = {2073-4441},
year = {2022},
date = {2022-03-15},
journal = {Water},
volume = {14},
number = {6},
publisher = {MDPI AG},
abstract = {Lakes, either artificial or natural, are greatly important as a component in their catchments’ hydrology, but also as ecosystem service providers. However, due to climate change, they have begun to face numerous problems with their water quality and quantity. Furthermore, general circulation models (GCMs) show future climate change with a reduction in rainfall and increase in temperature. The aim of the current study is to present an application where GCMs and state-of-the-art hydrological modelling system MIKE SHE/MIKE 11 are combined for assessing the response of a Greek lake in terms of its water balance and water level under climate change. Four general circulation models (GCMs; GFDL-CM3, MIROC-ESM-CHEM, MIROC-ESM, IPSL-CM5A-LR) for the extreme climate change scenario of RCP8.5 were used in the basin of Lake Zazari in Greece as a case study. Results showed that, by keeping the irrigated demands (the main water user) unchanged in the future, the lake exhibited a lower water level for all GCMs, fluctuating from −0.70 to −1.8 m for the mean (min) water level and from −0.30 to −1.20 m for the mean (max) water level. Instead of the above and by preserving the amount of withdraw water n from the lake at a certain percentage of inflows, the irrigated area should be reduced from 54.1% to 64.05% depending on the circulation model.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
Lakes, either artificial or natural, are greatly important as a component in their catchments’ hydrology, but also as ecosystem service providers. However, due to climate change, they have begun to face numerous problems with their water quality and quantity. Furthermore, general circulation models (GCMs) show future climate change with a reduction in rainfall and increase in temperature. The aim of the current study is to present an application where GCMs and state-of-the-art hydrological modelling system MIKE SHE/MIKE 11 are combined for assessing the response of a Greek lake in terms of its water balance and water level under climate change. Four general circulation models (GCMs; GFDL-CM3, MIROC-ESM-CHEM, MIROC-ESM, IPSL-CM5A-LR) for the extreme climate change scenario of RCP8.5 were used in the basin of Lake Zazari in Greece as a case study. Results showed that, by keeping the irrigated demands (the main water user) unchanged in the future, the lake exhibited a lower water level for all GCMs, fluctuating from −0.70 to −1.8 m for the mean (min) water level and from −0.30 to −1.20 m for the mean (max) water level. Instead of the above and by preserving the amount of withdraw water n from the lake at a certain percentage of inflows, the irrigated area should be reduced from 54.1% to 64.05% depending on the circulation model.
Zervas, Dimitrios; Tsiaoussi, Vasiliki; Kallimanis, Athanasios S.; Dimopoulos, Panayotis; Bergmeier, Erwin; Tsiripidis, Ioannis
Multiple-Facet Diversity Patterns of Aquatic Vegetation in Lakes along a Trophic Gradient Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 13, no. 16, 2021, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Zervas2021,
title = {Multiple-Facet Diversity Patterns of Aquatic Vegetation in Lakes along a Trophic Gradient},
author = {Dimitrios Zervas and Vasiliki Tsiaoussi and Athanasios S. Kallimanis and Panayotis Dimopoulos and Erwin Bergmeier and Ioannis Tsiripidis},
doi = {10.3390/w13162281},
issn = {2073-4441},
year = {2021},
date = {2021-08-20},
journal = {Water},
volume = {13},
number = {16},
publisher = {MDPI AG},
abstract = {The EU Water Framework Directive foresees the ecological assessment of surface waters against identified pressures. Nutrient loading is the main pressure impairing the ecological quality of lake ecosystems, and aquatic macrophytes are considered good indicators of ecological response. In this study, we statistically assessed different aspects of aquatic plant (macrophyte) diversity in response to different trophic levels in Mediterranean lakes. We used 5690 relevés of aquatic vegetation, distributed over 305 transects, sampled in 18 freshwater lake ecosystems during 2013–2016. Our results show a significant decrease in taxonomic alpha diversity in lakes with a total phosphorus content above 100 μg/L. Syntaxonomic diversity followed the species richness pattern as well. Functional richness decreased along the trophic gradient, while functional dispersion was higher in lakes with high trophic levels. Taxonomic and functional beta partitioning presented changes in assembly processes leading to greater community homogeneity in lakes with higher trophic levels. In summary, we found no redundancy between taxonomic and functional diversity indices. These results provide novel insights into aquatic plant assembly processes of impacted freshwater lakes needed to forward conservation and restoration practices.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
The EU Water Framework Directive foresees the ecological assessment of surface waters against identified pressures. Nutrient loading is the main pressure impairing the ecological quality of lake ecosystems, and aquatic macrophytes are considered good indicators of ecological response. In this study, we statistically assessed different aspects of aquatic plant (macrophyte) diversity in response to different trophic levels in Mediterranean lakes. We used 5690 relevés of aquatic vegetation, distributed over 305 transects, sampled in 18 freshwater lake ecosystems during 2013–2016. Our results show a significant decrease in taxonomic alpha diversity in lakes with a total phosphorus content above 100 μg/L. Syntaxonomic diversity followed the species richness pattern as well. Functional richness decreased along the trophic gradient, while functional dispersion was higher in lakes with high trophic levels. Taxonomic and functional beta partitioning presented changes in assembly processes leading to greater community homogeneity in lakes with higher trophic levels. In summary, we found no redundancy between taxonomic and functional diversity indices. These results provide novel insights into aquatic plant assembly processes of impacted freshwater lakes needed to forward conservation and restoration practices.
Latinopoulos, Dionissis; Spiliotis, Mike; Ntislidou, Chrysoula; Kagalou, Ifigenia; Bobori, Dimitra; Tsiaoussi, Vasiliki; Lazaridou, Maria
“One Out–All Out” Principle in the Water Framework Directive 2000—A New Approach with Fuzzy Method on an Example of Greek Lakes Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 13, no. 13, 2021, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Latinopoulos2021,
title = {“One Out–All Out” Principle in the Water Framework Directive 2000—A New Approach with Fuzzy Method on an Example of Greek Lakes},
author = {Dionissis Latinopoulos and Mike Spiliotis and Chrysoula Ntislidou and Ifigenia Kagalou and Dimitra Bobori and Vasiliki Tsiaoussi and Maria Lazaridou},
doi = {10.3390/w13131776},
issn = {2073-4441},
year = {2021},
date = {2021-06-27},
journal = {Water},
volume = {13},
number = {13},
publisher = {MDPI AG},
abstract = {The “One Out–All Out” (OOAO) principle imposed by the WFD selects the worst ecological status assessed by different biological quality elements (BQEs). Since it is a precautionary rule that can lead to problems of underestimation of the overall status, its amendment has been a matter of debate for WFD 20+. The use of fuzzy methods that express the functional relationships between variables in ecology and management has been gaining more ground recently. Here is attempted the inclusion of a fuzzy regression among the frequently monitored BQE (phytoplankton) and the outcome of OOAO application in six Greek lakes. The latter was determined by the comparison of four BQE indices in order to assess the extent to which BQEs might underpin the optimal/actual qualitative classification of a waterbody. This approach encompasses the uncertainty and the possibility to broaden the acceptable final EQR based on the character and status of each lake. We concluded that the fuzzy OOAO is an approach that seems to allow a better understanding of the WFD implementation and case-specific evaluation, including the uncertainty in classification as an asset. Moreover, it offers a deeper understanding through self-learning processes based on the existing datasets.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
The “One Out–All Out” (OOAO) principle imposed by the WFD selects the worst ecological status assessed by different biological quality elements (BQEs). Since it is a precautionary rule that can lead to problems of underestimation of the overall status, its amendment has been a matter of debate for WFD 20+. The use of fuzzy methods that express the functional relationships between variables in ecology and management has been gaining more ground recently. Here is attempted the inclusion of a fuzzy regression among the frequently monitored BQE (phytoplankton) and the outcome of OOAO application in six Greek lakes. The latter was determined by the comparison of four BQE indices in order to assess the extent to which BQEs might underpin the optimal/actual qualitative classification of a waterbody. This approach encompasses the uncertainty and the possibility to broaden the acceptable final EQR based on the character and status of each lake. We concluded that the fuzzy OOAO is an approach that seems to allow a better understanding of the WFD implementation and case-specific evaluation, including the uncertainty in classification as an asset. Moreover, it offers a deeper understanding through self-learning processes based on the existing datasets.
Kagalou, Ifigenia; Ntislidou, Chrysoula; Latinopoulos, Dionissis; Kemitzoglou, Dimitra; Tsiaoussi, Vasiliki; Bobori, Dimitra
Setting the Phosphorus Boundaries for Greek Natural Shallow and Deep Lakes for Water Framework Directive Compliance Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 13, no. 5, 2021, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Kagalou2021,
title = {Setting the Phosphorus Boundaries for Greek Natural Shallow and Deep Lakes for Water Framework Directive Compliance},
author = {Ifigenia Kagalou and Chrysoula Ntislidou and Dionissis Latinopoulos and Dimitra Kemitzoglou and Vasiliki Tsiaoussi and Dimitra Bobori},
doi = {10.3390/w13050739},
issn = {2073-4441},
year = {2021},
date = {2021-03-09},
journal = {Water},
volume = {13},
number = {5},
publisher = {MDPI AG},
abstract = {Eutrophication caused by nutrient enrichment is a predominant stressor leading to lake degradation and, thus, the set-up of boundaries that support good ecological status, the Water Framework Directive’s main target, is a necessity. Greece is one of the Member States that have recorded delays in complying with the coherent management goals of European legislation. A wide range of different statistical approaches has been proposed in the Best Practice Guide for determining appropriate nutrient thresholds. To determine the nutrient thresholds supporting the good status of natural Greek lakes, the phytoplankton dataset gathered from the national monitoring programme (2015–2020) was used for shallow and deep natural lakes. The regression analyses were sufficient and robust in order to derive total phosphorus thresholds that ranged from 20 to 41 μg/L in shallow and 15–32 μg/L in deep natural lake types. Nutrient boundaries that encompass the stressors these lakes are subject to, are essential in proper lake management design.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
Eutrophication caused by nutrient enrichment is a predominant stressor leading to lake degradation and, thus, the set-up of boundaries that support good ecological status, the Water Framework Directive’s main target, is a necessity. Greece is one of the Member States that have recorded delays in complying with the coherent management goals of European legislation. A wide range of different statistical approaches has been proposed in the Best Practice Guide for determining appropriate nutrient thresholds. To determine the nutrient thresholds supporting the good status of natural Greek lakes, the phytoplankton dataset gathered from the national monitoring programme (2015–2020) was used for shallow and deep natural lakes. The regression analyses were sufficient and robust in order to derive total phosphorus thresholds that ranged from 20 to 41 μg/L in shallow and 15–32 μg/L in deep natural lake types. Nutrient boundaries that encompass the stressors these lakes are subject to, are essential in proper lake management design.
Petriki, Olga; Zervas, Dimitrios; Doulgeris, Charalampos; Bobori, Dimitra
Assessing the Ecological Water Level: The Case of Four Mediterranean Lakes Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 12, no. 11, 2020, ISSN: 2073-4441.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology
@article{Petriki2020,
title = {Assessing the Ecological Water Level: The Case of Four Mediterranean Lakes},
author = {Olga Petriki and Dimitrios Zervas and Charalampos Doulgeris and Dimitra Bobori},
doi = {10.3390/w12112977},
issn = {2073-4441},
year = {2020},
date = {2020-10-23},
journal = {Water},
volume = {12},
number = {11},
publisher = {MDPI AG},
abstract = {The ecological water regime in lake water bodies refers to the water levels that enable the fulfillment of the ecosystem’s multiple functions. Therefore, assessing the ecological water regime necessitates the consideration of hydrological, economic, social, and ecological factors. The present research is focused on the assessment of the ecological water level of four Mediterranean natural lake ecosystems, considering their morphological and biological features. Initially, suggestions on the ecological water regime of the studied lakes were made based on an analysis of the lakes’ morphometry. Further, the ecological and biological requirements of the present fish fauna and aquatic macrophytic vegetation were considered. For the latter, mapping was conducted by extensive sampling according to international standards, in order to assess macrophyte composition, abundance, and chorology, as well as species sensitivity to water level fluctuations. The above guided the proposals on the optimal water level regime that should be met by each lake regarding the macrophytic and fish communities’ sustainability, also taking into account the unique hydromorphological features of each lake. The differences in the outcoming results revealed that hydromorphological and biological approaches should be combined for assessing lakes’ ecological water regimes.},
keywords = {Aquatic Science, Biochemistry, Geography, Planning and Development, Water Science and Technology},
pubstate = {published},
tppubtype = {article}
}
The ecological water regime in lake water bodies refers to the water levels that enable the fulfillment of the ecosystem’s multiple functions. Therefore, assessing the ecological water regime necessitates the consideration of hydrological, economic, social, and ecological factors. The present research is focused on the assessment of the ecological water level of four Mediterranean natural lake ecosystems, considering their morphological and biological features. Initially, suggestions on the ecological water regime of the studied lakes were made based on an analysis of the lakes’ morphometry. Further, the ecological and biological requirements of the present fish fauna and aquatic macrophytic vegetation were considered. For the latter, mapping was conducted by extensive sampling according to international standards, in order to assess macrophyte composition, abundance, and chorology, as well as species sensitivity to water level fluctuations. The above guided the proposals on the optimal water level regime that should be met by each lake regarding the macrophytic and fish communities’ sustainability, also taking into account the unique hydromorphological features of each lake. The differences in the outcoming results revealed that hydromorphological and biological approaches should be combined for assessing lakes’ ecological water regimes.
