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Item type:EMFIG - EKBY Collection, Application of a 2D-Hydrodynamic Model to Assess the Impact of Spring Water Discharge into the Lake Pamvotida in Ioannina, Greece(2025-11-25) - Some of the metrics are blocked by yourconsent settings
Item type:EMFIG - EKBY Collection, Application of a 2D-Hydrodynamic Model to Assess the Impact of Spring Water Discharge into the Lake Pamvotida in Ioannina, Greece (Poster Presentation)(2025-11-25) - Some of the metrics are blocked by yourconsent settings
Item type:EMFIG - EKBY Collection, Establishing Total Phosphorus Boundaries to Support Good Ecological Status of Greek Lakes and Reservoirs in Accordance with the Water Framework Directive(2025-11-24) - Some of the metrics are blocked by yourconsent settings
Item type:EMFIG - EKBY Collection, Assessment of minimum ecological water requirements in Lake Pamvotida – Greece, using an adaptation of the IFIM method(2025-11-24)D. PapadimosHuman interventions and climate change in the Greek territory, so far accompanied by higher temperatures and reduced precipitations, are already exerting pressure on the water level (WL) of the lakes (Papadimos et al., 2022). The severity of the impact of the above pressures on lake ecosystems depends on the magnitude of their WL changes, the duration, the timing of their occurrence during the year and the organisms that occur in the ecosystem (Leira and Cantonati 2008). Therefore, the identification of the ecological water level requirements (EWLR) of the lakes should be considered both necessary and imperative for the conservation and protection of their ecosystems and the services they provide. A variety of methodological approaches have been used to estimate EWLR in lakes. Among them hydraulic models, combination of historical WL data and the ecological requirements at different life stages of aquatic macrophytes, the protection requirements of specific aquatic flora and fauna species sensitive to hydrological pressures etc. In this research, we have used an adaptation of the Instream Flow Incremental Method (IFIM, Bovee 1982), which has been mainly applied to streams and rivers, to assess the EWLR of Lake Pamvotida, on the basis of the requirements of its habitat types and species whose conservation depends directly or indirectly on water regime. In addition, justified management measures related to the water balance of the lake have been elaborated and proposed to support the EWLR. - Some of the metrics are blocked by yourconsent settings
Item type:EMFIG - EKBY Collection, - Some of the metrics are blocked by yourconsent settings
Item type:EMFIG - EKBY Collection, Spatio-temporal changes of littoral macrophytes along hydrological conditions in Yliki, a Greek lake(2025-11-24) - Some of the metrics are blocked by yourconsent settings
Item type:EMFIG - EKBY Collection, Spatio-temporal changes of littoral macrophytes along hydrological conditions in Yliki, a Greek lake (Presentation)(2025-11-18) - Some of the metrics are blocked by yourconsent settings
Item type:EMFIG - EKBY Collection, Ostracod-based environmental reconstruction of Lake Koronia, (Central Greece) during the Holocene(2025-09-01)Lake Koronia is located in the western lowland area of the Mygdonia Basin, northeast of the city of Thessaloniki in northern Greece (40° 41′ N, 23° 09′ E, 75 m a.s.l.). It is the remnant of a once larger lake in the region (Psilovikos, 1977), but is now a shallow, hypertrophic and heavily polluted water body (Moustaka-Gouni et al., 2012). It has experienced substantial degradation over time due to human activities, but has also dried up several times in the past two decades (2002, 2007, 2009 and 2014), resulting in its current state, formerly the fourth largest lake in Greece (Demertzioglou et al., 2022). Despite its current ecological challenges, Lake Koronia is recognized as a protected wetland under international and national legislation, highlighting its importance (Malamataris et al., 2017). The aim of the present study was to investigate the paleoenvironmental evolution of Lake Koronia and the distribution of ostracod assemblages through time using a combination of core and recent surface sediment samples. - Some of the metrics are blocked by yourconsent settings
Item type:EMFIG - EKBY Collection, Globalland30 Mapping Capacity of Land Surface Water in Thessaly, Greece(2025-06-19)The National Geomatics Center of China (NGCC) produced Global Land Cover (GlobalLand30) maps with 30 m spatial resolution for the years 2000 and 2009–2010, responding to the need for harmonized, accurate, and high-resolution global land cover data. This study aims to assess the mapping accuracy of the land surface water layer of GlobalLand30 for 2009–2010. A representative Mediterranean region, situated in Greece, is considered as the case study area, with 2009 as the reference year. The assessment is realized through an object-based comparison of the GlobalLand30 water layer with the ground truth and visually interpreted data from the Hellenic Cadastre fine spatial resolution (0.5 m) orthophoto map layer. GlobCover 2009, GlobCorine 2009, and GLCNMO 2008 corresponding thematic layers are utilized to show and quantify the progress brought along with the increment of the spatial resolution, from 500 m to 300 m and finally to 30 m with the newly produced GlobalLand30 maps. GlobalLand30 detected land surface water areas show a 91.9% overlap with the reference data, while the coarser resolution products are restricted to lower accuracies.Validation is extended to the drainage network elements, i.e., rivers and streams, where GlobalLand30 outperforms the other global map products, as well. - Some of the metrics are blocked by yourconsent settings
Item type:EMFIG - EKBY Collection, Lake phytoplankton status and trends: a case study from Greek lakes, Eastern Mediterranean(2025-06-06)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.