Περιλαμβάνονται, με χρονολογική σειρά, δημοσιεύσεις στις οποίες έχουν χρησιμοποιηθεί δεδομένα από το εθνικό δίκτυο παρακολούθησης λιμνών.
Αναρτημένες ανακοινώσεις σε συνέδρια
Nikolopoulou, I.; Navrozidou, V.; Moschandreou, Kimon; Kemitzoglou, Dimitra; Tsiaoussi, Vasiliki
Phytoplankton and Ecological status of natural lakes in Greece Αναρτημένη ανακοίνωση σε συνέδριο
Eighth European Phycological Congress-EPC8 "Scientific Opportunities for a Global Algal Revolution", Brest, Brittany, France, 20-26 August 2023. Poster presentation., 2023.
Σύνδεσμοι | BibTeX | Ετικέτες: Λίμνες, Υγρότοποι, Φυτοπλαγκτόν
@conference{Nikolopoulou2023,
title = {Phytoplankton and Ecological status of natural lakes in Greece},
author = {I. Nikolopoulou and V. Navrozidou and Kimon Moschandreou and Dimitra Kemitzoglou and Vasiliki Tsiaoussi},
url = {http://hdl.handle.net/11340/2089},
year = {2023},
date = {2023-08-20},
urldate = {2023-08-20},
booktitle = {Eighth European Phycological Congress-EPC8 "Scientific Opportunities for a Global Algal Revolution", Brest, Brittany, France, 20-26 August 2023. Poster presentation.},
keywords = {Λίμνες, Υγρότοποι, Φυτοπλαγκτόν},
pubstate = {published},
tppubtype = {conference}
}
Navrozidou, V.; Nikolopoulou, I.; Katsavouni, S.; Seferlis, Miltiadis; Tsiaoussi, Vasiliki
Phytoplankton taxonomic groups in relation to physicochemical parameters. A case study from Greek lakes Αναρτημένη ανακοίνωση σε συνέδριο
13th Symposium for European Freshwater Sciences. Newcastle, UK 18-23/06/2023. Poster presentation. Η Συλλογή του ΕΚΒΥ, 2023.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Λίμνες, Υγρότοποι, Φυσικοχημική ανάλυση, Φυτοπλαγκτόν
@conference{Navrozidou2023,
title = {Phytoplankton taxonomic groups in relation to physicochemical parameters. A case study from Greek lakes},
author = {V. Navrozidou and I. Nikolopoulou and S. Katsavouni and Miltiadis Seferlis and Vasiliki Tsiaoussi},
url = {http://hdl.handle.net/11340/2083},
year = {2023},
date = {2023-06-18},
urldate = {2023-06-18},
publisher = {13th Symposium for European Freshwater Sciences. Newcastle, UK 18-23/06/2023. Poster presentation. Η Συλλογή του ΕΚΒΥ},
abstract = {The composition, abundance and biomass of phytoplankton are long considered as indicative of the eutrophication pressure in lakes. In addition, cyanobacteria-formed algal blooms are mostly linked to poor water quality. The objectives of the present study were a) to explore phytoplankton groups and physicochemical parameters of lakes in a Mediterranean setting and b) to investigate the response of phytoplankton taxonomic groups to phosphorus loading in those lakes. We analyzed data from the National Monitoring Network from 2019-2021 for 16 freshwater lakes in Greece. Water transparency, ionic composition and Total Phosphorus (TP) were correlated with major phytoplankton groups (chlorophytes, dinoflagellates, cryptophytes, bacillariophyceae and cyanobacteria). Based on both phytoplankton and physicochemical parameters, two groups of lakes were formed in cluster analysis, corresponding a) to deep warm monomictic and b) shallow and very shallow polymictic lakes. With regard to the impact from phosphorus loading, in both groups of lakes, a considerable increase of cyanobacteria biomass along a TP gradient was observed. Chlorophytes showed a statistically significant response in relation to TP in shallow and very shallow lakes. The results highlight the importance of phytoplankton in monitoring and evaluation of the status of aquatic ecosystems as phytoplankton biomass and community structure respond to changes in environmental parameters.},
keywords = {Λίμνες, Υγρότοποι, Φυσικοχημική ανάλυση, Φυτοπλαγκτόν},
pubstate = {published},
tppubtype = {conference}
}
The composition, abundance and biomass of phytoplankton are long considered as indicative of the eutrophication pressure in lakes. In addition, cyanobacteria-formed algal blooms are mostly linked to poor water quality. The objectives of the present study were a) to explore phytoplankton groups and physicochemical parameters of lakes in a Mediterranean setting and b) to investigate the response of phytoplankton taxonomic groups to phosphorus loading in those lakes. We analyzed data from the National Monitoring Network from 2019-2021 for 16 freshwater lakes in Greece. Water transparency, ionic composition and Total Phosphorus (TP) were correlated with major phytoplankton groups (chlorophytes, dinoflagellates, cryptophytes, bacillariophyceae and cyanobacteria). Based on both phytoplankton and physicochemical parameters, two groups of lakes were formed in cluster analysis, corresponding a) to deep warm monomictic and b) shallow and very shallow polymictic lakes. With regard to the impact from phosphorus loading, in both groups of lakes, a considerable increase of cyanobacteria biomass along a TP gradient was observed. Chlorophytes showed a statistically significant response in relation to TP in shallow and very shallow lakes. The results highlight the importance of phytoplankton in monitoring and evaluation of the status of aquatic ecosystems as phytoplankton biomass and community structure respond to changes in environmental parameters.
Προφορικές παρουσιάσεις σε συνέδρια
Navrozidou, V.; Apostolakis, Antonis; Katsavouni, S.; Mavromati, Efpraxia; Tsiaoussi, Vasiliki
Water quality of Greek reservoirs: the impact of land cover and water resources management on phytoplankton Προφορική παρουσίαση σε συνέδριο
Paper presented at 11th World Congress on Water Resources and Environment (EWRA 2019) “Managing Water Resources for a Sustainable Future”. Madrid, Spain, 25.06.2019.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Λίμνες, Υγρότοποι, Φυτοπλαγκτόν
@misc{Navrozidou2019,
title = {Water quality of Greek reservoirs: the impact of land cover and water resources management on phytoplankton},
author = {V. Navrozidou and Antonis Apostolakis and S. Katsavouni and Efpraxia Mavromati and Vasiliki Tsiaoussi},
url = {http://hdl.handle.net/11340/1974},
year = {2019},
date = {2019-06-25},
urldate = {2019-06-25},
pages = {2},
abstract = {Natural and artificial lakes (reservoirs) are ecosystems of major importance; however, environmental pressures such as eutrophication, global warming and overexploitation of water resources put a pressure on them (Gaglio et al. 2017). Phytoplankton is an important element of aquatic ecosystems and a significant indicator of water quality as it responds directly to eutrophication pressure (Hajnal and Padisák 2008). The objectives of this study are: i) to present recent data on phytoplankton communities of Greek reservoirs; and ii) to investigate their correlation with land cover of river basin and water resources management.},
howpublished = {Paper presented at 11th World Congress on Water Resources and Environment (EWRA 2019) “Managing Water Resources for a Sustainable Future”. Madrid, Spain},
keywords = {Λίμνες, Υγρότοποι, Φυτοπλαγκτόν},
pubstate = {published},
tppubtype = {presentation}
}
Natural and artificial lakes (reservoirs) are ecosystems of major importance; however, environmental pressures such as eutrophication, global warming and overexploitation of water resources put a pressure on them (Gaglio et al. 2017). Phytoplankton is an important element of aquatic ecosystems and a significant indicator of water quality as it responds directly to eutrophication pressure (Hajnal and Padisák 2008). The objectives of this study are: i) to present recent data on phytoplankton communities of Greek reservoirs; and ii) to investigate their correlation with land cover of river basin and water resources management.
Τεχνικές εκθέσεις
Tsiaoussi, Vasiliki; Mavromati, Efpraxia; Kemitzoglou, Dimitra
1st revision. Greek Biotope/Wetland Centre (EKBY) and Special Secretariat for Waters, Ministry of Environment. Thermi, Greece. Η Συλλογή του ΕΚΒΥ. 17 p., 2017.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Λίμνες, Υγρότοποι, Φυτοπλαγκτόν
@techreport{Tsiaoussi2017,
title = {Report on the development of the national method for the assessment of the ecological status of natural lakes in Greece, using the biological quality element "phytoplankton"},
author = {Vasiliki Tsiaoussi and Efpraxia Mavromati and Dimitra Kemitzoglou},
url = {http://hdl.handle.net/11340/1964},
year = {2017},
date = {2017-09-01},
urldate = {2017-09-01},
journal = {Η Συλλογή του ΕΚΒΥ},
issue = {1st revision},
pages = {17},
address = {1st revision. Greek Biotope/Wetland Centre (EKBY) and Special Secretariat for Waters, Ministry of Environment. Thermi, Greece. Η Συλλογή του ΕΚΒΥ. 17 p.},
organization = {Greek Biotope/Wetland Centre (EKBY) and Special Secretariat for Waters, Ministry of Environment},
abstract = {This report discusses the development of a national method for the assessment of ecological status of natural lakes in Greece, based on the Biological Quality Element (BQE) “phytoplankton”; it is a revised version of the 2016 report, following comments by JRC and Intercalibration Review Panel experts. The main changes include an amendment to modNygaard index (exclusion of Centrales, see 2.1), the exclusion of a lake’s data from the reference dataset in order to avoid ircularity in the assessment, and construction of pressure response curves with phytoplankton and TP data from lake years 2014 and 2015. At the Mediterranean Lake Geographical Intercalibration Group, Member States defined two common water body types for reservoirs (L-M5/7 and L-M8). In spite of common efforts, within the Mediterranean GIG, there was no possibility to intercalibrate natural Mediterranean lakes because of the absence of common types with enough lakes. As a result, no assessment methods for phytoplankton of natural lakes have been intercalibrated within the Med GIG. The operation of the Greek water monitoring network started in 2012, following the publication of a Joint Ministerial Decision in 2011 and comprises 23 natural lakes. The development of the current assessment method, as described in this report, is based on the data from this national water monitoring network. Natural lakes in Greece are grouped into 3 types: 1) warm monomictic, deep natural lakes with mean depth >9 m (type GR-DNL, 7 lakes), 2) polymictic, shallow natural lakes with mean depth 3-9 m (type GR-SNL, 8 lakes), 3) very shallow lakes < 3 m (type GR-VSNL, 8 lakes).},
howpublished = {1st revision. Greek Biotope/Wetland Centre (EKBY) and Special Secretariat for Waters, Ministry of Environment. Η Συλλογή του ΕΚΒΥ. 17 p.},
keywords = {Λίμνες, Υγρότοποι, Φυτοπλαγκτόν},
pubstate = {published},
tppubtype = {techreport}
}
This report discusses the development of a national method for the assessment of ecological status of natural lakes in Greece, based on the Biological Quality Element (BQE) “phytoplankton”; it is a revised version of the 2016 report, following comments by JRC and Intercalibration Review Panel experts. The main changes include an amendment to modNygaard index (exclusion of Centrales, see 2.1), the exclusion of a lake’s data from the reference dataset in order to avoid ircularity in the assessment, and construction of pressure response curves with phytoplankton and TP data from lake years 2014 and 2015. At the Mediterranean Lake Geographical Intercalibration Group, Member States defined two common water body types for reservoirs (L-M5/7 and L-M8). In spite of common efforts, within the Mediterranean GIG, there was no possibility to intercalibrate natural Mediterranean lakes because of the absence of common types with enough lakes. As a result, no assessment methods for phytoplankton of natural lakes have been intercalibrated within the Med GIG. The operation of the Greek water monitoring network started in 2012, following the publication of a Joint Ministerial Decision in 2011 and comprises 23 natural lakes. The development of the current assessment method, as described in this report, is based on the data from this national water monitoring network. Natural lakes in Greece are grouped into 3 types: 1) warm monomictic, deep natural lakes with mean depth >9 m (type GR-DNL, 7 lakes), 2) polymictic, shallow natural lakes with mean depth 3-9 m (type GR-SNL, 8 lakes), 3) very shallow lakes < 3 m (type GR-VSNL, 8 lakes).
Tsiaoussi, Vasiliki; Mavromati, Efpraxia; Kemitzoglou, Dimitra
Report on the application of phytoplankton index NMASRP for reservoirs in Greece Τεχνική έκθεση
Greek Biotope/Wetland Centre (EKBY) and Special Secretariat for Waters, Ministry of Environment. Thermi, Greece. Η Συλλογή του ΕΚΒΥ. 16 p., 2016.
Περίληψη | Σύνδεσμοι | BibTeX | Ετικέτες: Λίμνες, Υγρότοποι, Φυτοπλαγκτόν
@techreport{Tsiaoussi2016,
title = {Report on the application of phytoplankton index NMASRP for reservoirs in Greece},
author = {Vasiliki Tsiaoussi and Efpraxia Mavromati and Dimitra Kemitzoglou},
url = {http://hdl.handle.net/11340/1965},
year = {2016},
date = {2016-09-01},
urldate = {2016-09-01},
journal = {Η Συλλογή του ΕΚΒΥ},
pages = {16},
address = {Greek Biotope/Wetland Centre (EKBY) and Special Secretariat for Waters, Ministry of Environment. Thermi, Greece. Η Συλλογή του ΕΚΒΥ. 16 p.},
organization = {Greek Biotope/Wetland Centre (EKBY) and Special Secretariat for Waters, Ministry of Environment},
abstract = {Assessment methods had been intercalibrated for lake types LM 5/7 (deep siliceous reservoirs) and LM 8 (deep calcareous reservoirs) (de Hoyos et al. 2014). In the first round of IC that Greece participated, boundaries for individual phytoplankton metrics (chlorophyll-a, total biovolume, percentage of cyanobacteria, IGA and MedPTI) were agreed (using option 1 of IC) and formally included in the 200 8 EC Intercalibration Decision. During the second round of IC, national assessment methods based on the above metrics (NMASRP for Cyprus and Portugal, MASRP for Spain and NITMET for Italy) were intercalibrated for LM 5/7 and LM 8 types. Greece had not started the operation of the monitoring network at that time, and thus had not submitted its national assessment method for the second round of IC. The operation of the Greek monitoring network started in 2012, following the publication of a Joint Ministerial Decision in 2011. Fifty lake water bodies have been included in the monitoring network, out of which 15 are LM 5/7 and 5 are LM 8 reservoirs. The national phytoplankton assessment method applied for Greek LM 5/7 and LM 8 reservoirs is the New Mediterranean Assessment System for Reservoirs Phytoplankton (NMASRP), that has been intercalibrated in the Med GIG, as applied by Cyprus and Portugal (i.e. the metric percentage of cyanobacteria is replaced by the metric biovolume of cyanobacteria, in order to account for algal blooms) (de Hoyos et al. 2014). Spain uses MASRP (i.e., with the metric percentage of cyanobacteria). NMASRP addresses eutrophication pressure in Mediterranean reservoirs. This report does not discuss the development of new or revised ecological assessment method for phytoplankton according to finalized IC results, but the application of the existing NMASRP phytoplankton assessment method as intercalibrated in the Med GIG (including existing MEP values and EQRs), into the national dataset. NMASRP values are calculated as annual mean. This dataset contains data collected during the 2012-2015 sampling campaign, and in particular 53 NMASRP values for LM 5/7 and 18 NMASRP values for LM 8 reservoirs arising from 139 and 56 samplings, respectively.},
keywords = {Λίμνες, Υγρότοποι, Φυτοπλαγκτόν},
pubstate = {published},
tppubtype = {techreport}
}
Assessment methods had been intercalibrated for lake types LM 5/7 (deep siliceous reservoirs) and LM 8 (deep calcareous reservoirs) (de Hoyos et al. 2014). In the first round of IC that Greece participated, boundaries for individual phytoplankton metrics (chlorophyll-a, total biovolume, percentage of cyanobacteria, IGA and MedPTI) were agreed (using option 1 of IC) and formally included in the 200 8 EC Intercalibration Decision. During the second round of IC, national assessment methods based on the above metrics (NMASRP for Cyprus and Portugal, MASRP for Spain and NITMET for Italy) were intercalibrated for LM 5/7 and LM 8 types. Greece had not started the operation of the monitoring network at that time, and thus had not submitted its national assessment method for the second round of IC. The operation of the Greek monitoring network started in 2012, following the publication of a Joint Ministerial Decision in 2011. Fifty lake water bodies have been included in the monitoring network, out of which 15 are LM 5/7 and 5 are LM 8 reservoirs. The national phytoplankton assessment method applied for Greek LM 5/7 and LM 8 reservoirs is the New Mediterranean Assessment System for Reservoirs Phytoplankton (NMASRP), that has been intercalibrated in the Med GIG, as applied by Cyprus and Portugal (i.e. the metric percentage of cyanobacteria is replaced by the metric biovolume of cyanobacteria, in order to account for algal blooms) (de Hoyos et al. 2014). Spain uses MASRP (i.e., with the metric percentage of cyanobacteria). NMASRP addresses eutrophication pressure in Mediterranean reservoirs. This report does not discuss the development of new or revised ecological assessment method for phytoplankton according to finalized IC results, but the application of the existing NMASRP phytoplankton assessment method as intercalibrated in the Med GIG (including existing MEP values and EQRs), into the national dataset. NMASRP values are calculated as annual mean. This dataset contains data collected during the 2012-2015 sampling campaign, and in particular 53 NMASRP values for LM 5/7 and 18 NMASRP values for LM 8 reservoirs arising from 139 and 56 samplings, respectively.