TAILIEUCHUNG - Phytoplankton dynamics and structure, and ecological status estimation by the Q assemblage index: a comparative analysis in two shallow Mediterranean lakes

The aim of this research was to compare the phytoplankton structure on the basis of environmental variables and test the Q assemblage index based on phytoplankton functional groups in two shallow Mediterranean lakes [Lake Taşkısığı (LT) and Lake Little Akgöl (LLA)] in the north of Turkey. | Turkish Journal of Botany Turk J Bot (2017) 41: 25-36 © TÜBİTAK doi: Research Article Phytoplankton dynamics and structure, and ecological status estimation by the Q assemblage index: a comparative analysis in two shallow Mediterranean lakes 1, 1 2 Tuğba ONGUN SEVİNDİK *, Hatice TUNCA , Arif GÖNÜLOL , 1 1 1 Nisa YILDIRIM GÜRSOY , Şeyma Nur KÜÇÜKKAYA , Zuhal DURGUT KINALI 1 Department of Biology, Faculty of Arts and Science, Sakarya University, Sakarya, Turkey 2 Department of Biology, Faculty of Arts and Science, Ondokuz Mayıs University, Samsun, Turkey Received: Accepted/Published Online: Final Version: Abstract: The aim of this research was to compare the phytoplankton structure on the basis of environmental variables and test the Q assemblage index based on phytoplankton functional groups in two shallow Mediterranean lakes [Lake Taşkısığı (LT) and Lake Little Akgöl (LLA)] in the north of Turkey. Variations in the phytoplankton structure and environmental parameters were analyzed monthly at two stations of each lake between January 2013 and December 2013. We showed that total phosphorus (TP) values were vital in shaping phytoplankton biomass in eutrophic LLA. Nitrate-nitrogen (NO3-N), TP, zmix/zeu, and macrophyte coverage are important in shaping the differences in dominant phytoplankton functional groups between two lakes. Generally, diversity values were similar between the two lakes and environmental parameters had no effect on diversities to constitute significant differences. The assessment using the Q index gave compatible results for determining the ecological status of LT and LLA. Key words: Biomass, diversity, functional groups, Q index, Water Framework Directive 1. Introduction Shallow lakes in Mediterranean climates, which are generally situated in lowland areas, due to their high evaporation/precipitation ratios, low geographic relief, and dense human

• Nông nghiệp
• Phytoplankton dynamics
• Ecological status estimation
• Functional groups
• Q index
• Water Framework Directive
• Aegean Sea
• İzmir Bay
• Phytoplankton size fractions
• Water transportation
• Big Channel Project
• Phytoplankton community
• Ecosystem model
• Dynamical estuarine ecosystem modeling
• Phytoplankton size structure
• Coastal bay
• Sizestructured phytoplankton dynamics
• Phytoplankton biovolume
• Regression analysis
• Water discharge
• Planktothrix rubescens Anagnostidis
• Microcystis aeruginosa
• BMC Genomics
• Nutrient stoichiometry o
• Stoichiometric homeostasis
• Phytoplankton frequently
• Anthropogenic water treatment
• Ecosystem dynamics
• importance of water
• policy framework
• Environmental objectives
• integrated internationa
• catchments and coastal areas
• implementation
• DATA QUALITY
• RISK ASSESSMENT
• MONITORING FEATURES
• Ecological Status
• European Freshwaters
• Chemical Monitoring
• Chromatography A
• Biota analysis
• Method validation
• Halogenated pollutants