Περιλαμβάνονται, με χρονολογική σειρά, δημοσιεύσεις στις οποίες έχουν χρησιμοποιηθεί δεδομένα από το εθνικό δίκτυο παρακολούθησης λιμνών.
Δημοσιεύσεις σε επιστημονικά περιοδικά
Zioga, Marianthi; Kemitzoglou, Dimitra; Zerva, Ioanna; Katsavouni, Sotiria; Kagalou, Ifigenia; Tsiaoussi, Vasiliki
Establishing Total Phosphorus Boundaries to Support Good Ecological Status of Greek Lakes and Reservoirs in Accordance with the Water Framework Directive Δημοσίευση σε επιστημονικό περιοδικό
In: Water, vol. 17, iss. 23, no. 3349, 2025, ISSN: 2073-444.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: good ecological status, Greek lakes, nutrient boundaries, total phosphorus, water framework directive
@article{w17233349,
title = {Establishing Total Phosphorus Boundaries to Support Good Ecological Status of Greek Lakes and Reservoirs in Accordance with the Water Framework Directive},
author = {Marianthi Zioga and Dimitra Kemitzoglou and Ioanna Zerva and Sotiria Katsavouni and Ifigenia Kagalou and Vasiliki Tsiaoussi},
editor = {Xiaoxiao Wang},
url = {http://hdl.handle.net/11340/2144},
doi = {10.3390/w17233349},
issn = {2073-444},
year = {2025},
date = {2025-11-23},
urldate = {2025-11-23},
journal = {Water},
volume = {17},
number = {3349},
issue = {23},
abstract = {Eutrophication, driven by nutrient enrichment, represents substantial anthropogenic pressure with harmful consequences for aquatic ecosystems. The Water Framework Directive provides a structured approach to addressing this challenge as it requires European Union Member States to achieve at least good ecological status for their surface waters. The establishment of realistic nutrient boundaries, above which negative effects become pronounced, is essential to guide regulatory intervention aimed at securing long-term water sustainability in Europe. Greece is one of the Member States which should determine nutrient boundaries supporting the good ecological status of lakes. Two statistical approaches, ranged major axis regression and binomial logistic regression, were applied for setting appropriate nutrient boundaries for Greek natural lakes and reservoirs, using datasets of phytoplankton and total phosphorus concentrations, retrieved from the national monitoring program (2016–2023). The predicted boundary values for total phosphorus supporting good ecological status ranged from 32 to 76 μg/L, with stricter boundaries corresponding to deep lakes. Nutrient boundaries that reflect the environmental pressures on Greek natural lakes and reservoirs are fundamental to ensure proper design of lake management strategies.},
keywords = {good ecological status, Greek lakes, nutrient boundaries, total phosphorus, water framework directive},
pubstate = {published},
tppubtype = {article}
}
Eutrophication, driven by nutrient enrichment, represents substantial anthropogenic pressure with harmful consequences for aquatic ecosystems. The Water Framework Directive provides a structured approach to addressing this challenge as it requires European Union Member States to achieve at least good ecological status for their surface waters. The establishment of realistic nutrient boundaries, above which negative effects become pronounced, is essential to guide regulatory intervention aimed at securing long-term water sustainability in Europe. Greece is one of the Member States which should determine nutrient boundaries supporting the good ecological status of lakes. Two statistical approaches, ranged major axis regression and binomial logistic regression, were applied for setting appropriate nutrient boundaries for Greek natural lakes and reservoirs, using datasets of phytoplankton and total phosphorus concentrations, retrieved from the national monitoring program (2016–2023). The predicted boundary values for total phosphorus supporting good ecological status ranged from 32 to 76 μg/L, with stricter boundaries corresponding to deep lakes. Nutrient boundaries that reflect the environmental pressures on Greek natural lakes and reservoirs are fundamental to ensure proper design of lake management strategies.
Nikolopoulou, Iliana; Mavromati, Efpraxia; Moschandreou, Kimon; Navrozidou, Valentini; Kemitzoglou, Dimitra; Tsiaoussi, Vasiliki
Lake phytoplankton status and trends: a case study from Greek lakes, Eastern Mediterranean Δημοσίευση σε επιστημονικό περιοδικό
In: Environmental Monitoring and Assessment, vol. 197, no. 733, 2025, ISSN: 1573-2959, (The online version contains supplementary material.).
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Ecological status, Greek lakes, HeLPhy, Phytoplankton, Φυτοπλαγκτόν
@article{Nikolopoulou2025,
title = {Lake phytoplankton status and trends: a case study from Greek lakes, Eastern Mediterranean},
author = {Iliana Nikolopoulou and Efpraxia Mavromati and Kimon Moschandreou and Valentini Navrozidou and Dimitra Kemitzoglou and Vasiliki Tsiaoussi },
doi = {10.1007/s10661-025-14147-7},
issn = {1573-2959},
year = {2025},
date = {2025-06-05},
urldate = {2025-06-05},
journal = {Environmental Monitoring and Assessment},
volume = {197},
number = {733},
abstract = {Until now, little information was available regarding phytoplankton communities of Greek lakes. In this study, we present the first comprehensive analysis of phytoplankton composition and biovolume, as well as their inter-annual variations, across 15 natural lakes in Greece from 2016 to 2021. The ecological status and trends of these lakes were assessed using HeLPhy, a phytoplankton index of the Water Framework Directive (WFD). Additionally, this study examined potential similarities among lakes based on the number of phytoplankton taxa identified, the composition of phytoplankton communities, and the ecological classification. A total of 462 phytoplankton taxa from 10 taxonomic groups were recorded in 287 phytoplankton samples collected between 2016 and 2021. The phytoplankton communities in all lakes were dominated mainly by Cyanobacteria, Bacillariophyta, and Chlorophyta. The highest number of phytoplankton taxa was recorded in Chlorophyta and Cyanobacteria taxonomic groups. Based on the HeLPhy index, the lakes were classified into four ecological status classes: high, good, moderate, and poor. Inter-annual variations in ecological classification were observed. Eight of the 15 lakes were classified as having good or better ecological status according to WFD criteria, with deep lakes generally exhibiting a better status than shallow lakes. Bacillariophyta were more prevalent in lakes with high and good ecological status, while Cyanobacteria were more abundant in poor status lakes and dominated in bad status lake-years. Lakes in moderate and poor status exhibited higher total phytoplankton and Cyanobacteria biovolume values. This research improves our understanding of the status and temporal variations of phytoplankton communities in Greek lakes.},
note = {The online version contains supplementary material.},
keywords = {Ecological status, Greek lakes, HeLPhy, Phytoplankton, Φυτοπλαγκτόν},
pubstate = {published},
tppubtype = {article}
}
Until now, little information was available regarding phytoplankton communities of Greek lakes. In this study, we present the first comprehensive analysis of phytoplankton composition and biovolume, as well as their inter-annual variations, across 15 natural lakes in Greece from 2016 to 2021. The ecological status and trends of these lakes were assessed using HeLPhy, a phytoplankton index of the Water Framework Directive (WFD). Additionally, this study examined potential similarities among lakes based on the number of phytoplankton taxa identified, the composition of phytoplankton communities, and the ecological classification. A total of 462 phytoplankton taxa from 10 taxonomic groups were recorded in 287 phytoplankton samples collected between 2016 and 2021. The phytoplankton communities in all lakes were dominated mainly by Cyanobacteria, Bacillariophyta, and Chlorophyta. The highest number of phytoplankton taxa was recorded in Chlorophyta and Cyanobacteria taxonomic groups. Based on the HeLPhy index, the lakes were classified into four ecological status classes: high, good, moderate, and poor. Inter-annual variations in ecological classification were observed. Eight of the 15 lakes were classified as having good or better ecological status according to WFD criteria, with deep lakes generally exhibiting a better status than shallow lakes. Bacillariophyta were more prevalent in lakes with high and good ecological status, while Cyanobacteria were more abundant in poor status lakes and dominated in bad status lake-years. Lakes in moderate and poor status exhibited higher total phytoplankton and Cyanobacteria biovolume values. This research improves our understanding of the status and temporal variations of phytoplankton communities in Greek lakes.
Book Chapters
Tsiaoussi, Vasiliki; Mavromati, Efpraxia; Demertzi, Kleoniki; Giourieva, Victoria; Katsavouni, Sotiria; Kemitzoglou, Dimitra; Navrozidou, Valentini; Nikolopoulou, Iliana; Papadimos, Dimitrios; Patsia, Athina; Seferlis, Miltiadis; Skopa, Maria; Varsami, Eirini; Zerva, Ioanna; Zioga, Marianthi
Current Status of Greek Lakes and Future Perspectives: Results from WFD Monitoring Book Chapter
In: Stefanidis, Konstantinos; Oikonomou, Anthi; Dimitriou, Elias (Ed.): Lakes of the Eastern Mediterranean and Balkans, pp. 149–182, Springer Nature Switzerland, 2025, 2026, ISBN: 978-3-032-02168-7.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Assessment, Biological indicators, Ecological status, Greek lakes, Hydrology, Monitoring, Physicochemical parameters, WFD
@inbook{Tsiaoussi2025,
title = {Current Status of Greek Lakes and Future Perspectives: Results from WFD Monitoring},
author = {Tsiaoussi, Vasiliki and Mavromati, Efpraxia and Demertzi, Kleoniki and Giourieva, Victoria and Katsavouni, Sotiria and Kemitzoglou, Dimitra and Navrozidou, Valentini and Nikolopoulou, Iliana and Papadimos, Dimitrios and Patsia, Athina and Seferlis, Miltiadis and Skopa, Maria and Varsami, Eirini and Zerva, Ioanna and Zioga, Marianthi},
editor = {Stefanidis, Konstantinos and Oikonomou, Anthi and Dimitriou, Elias},
url = {https://doi.org/10.1007/978-3-032-02168-7_5},
doi = {10.1007/978-3-032-02168-7_5},
isbn = {978-3-032-02168-7},
year = {2026},
date = {2026-01-02},
urldate = {2026-01-02},
booktitle = {Lakes of the Eastern Mediterranean and Balkans},
pages = {149–182},
publisher = {Springer Nature Switzerland},
edition = {2025},
abstract = {Lakes host rich biodiversity and provide valuable ecosystem services, including water for human and economic use. However, knowledge of lake ecosystems in Greece was previously limited. This gap has been addressed by the substantial increase in data from the National Lake Monitoring Network, which has been operational since 2012. The EU Water Framework Directive (WFD) has set the guidelines for lake monitoring and assessment systems. In this chapter, we present the key characteristics, ecological status, and trends of 49 Greek lakes between 2016 and 2022, as assessed according to the WFD. Overall, 55{%} of the lakes were classified as having good or better ecological status/potential. Of the remaining lakes, 33{%} were rated as moderate, 10{%} were classified as poor, and only 2{%} were rated as having bad ecological status. Specifically, the majority of reservoirs (85{%}) were assessed as having good or above ecological potential, while only 22{%} of natural lakes were rated similarly. The majority of natural lakes were classified as having moderate (52{%}), poor (22{%}), or bad ecological status (4{%}). Monitoring activities have played a crucial role in improving our understanding of the structure and functioning of lake ecosystems across different spatial and temporal scales. Additionally, the national monitoring network has created a valuable time series of data documenting the status and trends of Greek lakes, available to all interested parties. Authorities and other stakeholders can use these data to prioritize relevant conservation and restoration measures and assess their effectiveness.},
keywords = {Assessment, Biological indicators, Ecological status, Greek lakes, Hydrology, Monitoring, Physicochemical parameters, WFD},
pubstate = {published},
tppubtype = {inbook}
}
Lakes host rich biodiversity and provide valuable ecosystem services, including water for human and economic use. However, knowledge of lake ecosystems in Greece was previously limited. This gap has been addressed by the substantial increase in data from the National Lake Monitoring Network, which has been operational since 2012. The EU Water Framework Directive (WFD) has set the guidelines for lake monitoring and assessment systems. In this chapter, we present the key characteristics, ecological status, and trends of 49 Greek lakes between 2016 and 2022, as assessed according to the WFD. Overall, 55{%} of the lakes were classified as having good or better ecological status/potential. Of the remaining lakes, 33{%} were rated as moderate, 10{%} were classified as poor, and only 2{%} were rated as having bad ecological status. Specifically, the majority of reservoirs (85{%}) were assessed as having good or above ecological potential, while only 22{%} of natural lakes were rated similarly. The majority of natural lakes were classified as having moderate (52{%}), poor (22{%}), or bad ecological status (4{%}). Monitoring activities have played a crucial role in improving our understanding of the structure and functioning of lake ecosystems across different spatial and temporal scales. Additionally, the national monitoring network has created a valuable time series of data documenting the status and trends of Greek lakes, available to all interested parties. Authorities and other stakeholders can use these data to prioritize relevant conservation and restoration measures and assess their effectiveness.