Lakes, rivers, estuaries and ecosystem health

[CEST2019_00927] Prediction of Algal Bloom Occurrence in Laguna Lake, Philippines using Artificial Neural Networks (ANN)
by Esguerra G., Ballesteros F.

Algal blooms pertain to an undesirable formation of unicellular freely-floating algal scum caused by the rapid growth of phytoplankton, which can become a hazard for the water body ecosystem. Laguna Lake serves as both a source of livelihood and water supply for the residents in the region and the risk of algal blooms should be detected for safe and efficient management. The research presents a method for predicting the amount of phytoplankton to alert the monitoring agencies of incidences of high phytoplankton as a scalable and inexpensive early-warning tool.

Session: 53, Room: E, at Sat, 09/07/2019 - 15:45 to 16:00
Oral presentation in Lakes, rivers, estuaries and ecosystem health
[CEST2019_00769] Greenhouse Gas Emissions from Natural and Artificial Lakes in Western Macedonia, Greece
by Tsioptsias C., Samiotis G., Kaklidis N., Pekridis G., Amanatidou E.

Formation of artificial lakes is a common practice for hydroelectric power generation. Hydroelectricity is considered to be a green and renewable energy source in terms of factory operation. However, hydroelectricity generation may have environmental impact arisen from greenhouse gas (GHG) emissions induced by biomass degradation within water reservoir. Depending on area (rocks, cultivation fields, etc) flooded, an artificial lake may emit significant amounts of GHG, especially in the first years of its formation.

Session: 53, Room: E, at Sat, 09/07/2019 - 15:30 to 15:45
Oral presentation in Lakes, rivers, estuaries and ecosystem health
[CEST2019_00553] The effect of alkaline activated reservoir sediments used as a binder in concrete on its compressive strength
by Junakova N., Junak J.

Sediment as the product of erosion processes is found in every water body and reduces the storage capacity and the lifetime of water reservoirs. The quantity of sediment which affects downstream areas and also their quality complicate sediment management. Dredged sediments are on the borderline of soils, water and waste. The favourite dredged material management options are natural options. Beneficial re-use is a way to encourage the use of dredged material as a potential resource and not as a waste. Sediments are regarded as a suitable raw material in construction industry.

Session: 53, Room: E, at Sat, 09/07/2019 - 16:33 to 16:36
Flash presentation in Lakes, rivers, estuaries and ecosystem health
[CEST2019_00382] The DPSIR framework for integrating the Ecosystem Services in River Nestos Lagoons-Greece
by Pournara A., Mirli A., Latinopoulos D.,Kagkalou I.

It is well documented that conservation and management of water resources are directly related to the sustainable living, i.e. to social, economic and environmental aspects. There has been much effort by the European research community to provide tools to support the implementation of freshwater sustainability and management policy instruments. In this context the DPSIR model was used as an analytical framework for determining pressures and impacts under the WFD as it is considered as an effective tool for both society and policy makers concerning water resources management.

Session: 53, Room: E, at Sat, 09/07/2019 - 16:15 to 16:30
Oral presentation in Lakes, rivers, estuaries and ecosystem health
[CEST2019_00349] Assessment of water quality of Asopos River in central Greece using multivariate analysis
by Tsadilas C., Tziouvalekas M., Evangelou E., Papadopoulos S., Papadoulis A., Petsoulas C., Tsitouras A., Grypari P., Smyrnis T., Peppas A.

The main objective of this study was to assess the quality of water from five monitoring stations in Asopos River (central Greece), and evaluate the main factors that affect water quality. Fifty one biochemical parameters measured both in situ and in the laboratory three times a year for two consecutive years. Multivariate analysis of Hierarchical cluster analysis and Principal component analysis were used to interpret water quality characteristics.

Session: 53, Room: E, at Sat, 09/07/2019 - 16:30 to 16:33
Flash presentation in Lakes, rivers, estuaries and ecosystem health
[CEST2019_00315] Managing the risk of cyanobacteria through water quality characteristics analysis: A case study of two warm Mediterranean reservoirs
by Antoniou M.G., Kagalou I., Hadjıouraniou G., Daskalakis E., Tsiarta N., Chamoglou M., Polykarpou P.

This study correlated the trophic condition of two Mediterranean water bodies with different typology with their water quality characteristics. The two studied cases included Polemidia Dam, a reservoir enriched with tertiary treated wastewater in Cyprus and Lake Karla, a re-established reservoir in Greece. The aim was to identify the key environmental variables driving cyanobacteria blooming and their cyanotoxicity and therefore to address effective management tools for each case.

Session: 53, Room: E, at Sat, 09/07/2019 - 15:15 to 15:30
Oral presentation in Lakes, rivers, estuaries and ecosystem health
[CEST2019_00330] Improved LC/LU maps and flood models through crowdsourced information
by Tsiakos C., Krommyda M., Kopsinis Y., Tsertou A., Amditis A., Jonoski A., Popescu I., Assumpcao T.

Flood risk prediction has been traditionally based on models that are developed from time-series of data collected over long periods of time from expensive and hard to maintain in situ sensors available only in specific areas. SCENT is a H2020 project which provides an integrated toolbox of smart collaborative and innovating technologies that augment costly in situ infrastructure, enabling citizens to become the ‘eyes’ of the policy makers by monitoring LC/LU changes in their everyday activities and related environmental phenomena like floods by crowdsourcing relevant information.

Session: 53, Room: E, at Sat, 09/07/2019 - 16:00 to 16:15
Oral presentation in Lakes, rivers, estuaries and ecosystem health
[CEST2019_00135] Evaluation of water quality of Kosynthos river in North Greece, using Water Quality Indices
by Gikas G.D., Lergios D., Psomakelis E., Petalas C.

The water quality of Kosynthos river, located in Xanthi Prefecture, Northern Greece, was evaluated using Water Quality Indices (WQIs). A water quantity and quality monitoring program was undertaken from December 2016 to November 2017 on a weekly basis at three stations along the main course of Kosynthos river. Discharge, temperature (T), dissolved oxygen (DO), pH and electrical conductivity (EC) were measured in situ.

Session: 53, Room: E, at Sat, 09/07/2019 - 15:00 to 15:15
Oral presentation in Lakes, rivers, estuaries and ecosystem health