TAILIEUCHUNG - Bioassessing ecological status of surface waters in the Araban-Yavuzeli catchment (Turkey): Application of diatom indices

Within the scope of the European Union Water Framework Directive, diatom assemblages as biological quality components were used to evaluate the ecological status of 12 surface waters in the Araban-Yavuzeli catchment between October 2013 and October 2014. A total of 75 diatom species were identified during the study period. Amphora ovalis, Denticula elegans, Gomphonema parvulum, Gomphonema truncatum, and Navicula cryptocephala were commonly observed. The relationship between diatom assemblages and environmental factors was assessed by canonical correspondence analysis and weighted average regression. Dissolved oxygen, temperature, nitrate, biological oxygen demand, lead, and copper played significant roles in the distribution and composition of diatom assemblages (P | Turkish Journal of Botany Turk J Bot 2019 43 597-607 http botany TÜBİTAK Research Article doi bot-1901-32 Bioassessing ecological status of surface waters in the Araban-Yavuzeli catchment Turkey application of diatom indices Abuzer ÇELEKLİ Fatma BİLGİ Department of Biology Faculty of Art and Science Gaziantep University Gaziantep Turkey Received Accepted Published Online Final Version Abstract Within the scope of the European Union Water Framework Directive diatom assemblages as biological quality components were used to evaluate the ecological status of 12 surface waters in the Araban-Yavuzeli catchment between October 2013 and October 2014. A total of 75 diatom species were identified during the study period. Amphora ovalis Denticula elegans Gomphonema parvulum Gomphonema truncatum and Navicula cryptocephala were commonly observed. The relationship between diatom assemblages and environmental factors was assessed by canonical correspondence analysis and weighted average regression. Dissolved oxygen tem- perature nitrate biological oxygen demand lead and copper played significant roles in the distribution and composition of diatom assemblages P lt . The ecological status of the stations in Araban and Yavuzeli was characterized using the trophic index-Turkey TIT trophic index TI and eutrophication and or pollution index-diatom EPI-D indices. According to the TIT Ardıl Creek1 had very good ecological conditions and was characterized by the occurrence of pollution-sensitive diatom taxa . Cymbella affinis En- cyonema silesiacum Navicula radiosa indicated by multivariate analyses. The significant positive correlation of the TIT P lt r with logPO4 indicated that TIT may be used as an appropriate diatom metric to assess the ecological status of surface waters in the Araban-Yavuzeli catchment. Key words Bioassessment diatoms Araban-Yavuzeli catchment trophic index-Turkey 1. Introduction .

• Sinh học
• Journal of Botany
• Araban Yavuzeli catchment
• Trophic index Turkey
• Gomphonema truncatum
• Multivariate analyses
• Pollution sensitive diatom taxa
• Ricinus communis
• Glycine max
• Fatty acid biosynthesis
• Comparative proteomics
• Plant seed oil
• Aluminum stress
• DNA methylation
• iPBS profile
• Genomic instability
• Reactive oxygen species
• Helianthus annuus
• Molecular marker analysis
• Simple sequence repeats
• Orobanche cumana
• Genetic structure
• Water deficit stress
• Trifolium repens
• Exogenous application
• Oxidative defense system
• Chicken feather
• Protein hydrolysate
• Aqueous solutions
• Nonproteinogenic amino acids
• Glutathione peroxidase
• Białowieża Forest
• Hay meadow
• Long term study
• Mowing regime
• Floristic composition
• Ecological status
• Indication system
• Trophic weight
• Aquatic ecosystems
• Weighted average regression
• Molecular analyses
• Stalked puffballs
• Fungal DNA barcode
• Nuclear ribosomal DNA
• Scanning electron microscopes
• Astragalus devesae
• Chemical scarification
• Endangered species
• In situ and ex situ conservation
• Population reinforcement
• Seed germination
• Onopordum nezaketianum
• Ornamentation microreticulate
• Palynological features
• Sparsely arachnoid pubescent
• New record
• High mountain lakes
• Artabel Lakes Nature Park
• Chlamydomonas pertusa Chodat
• Coenochloris pyrenoidosa Korshikov
• Chalcone isomerase
• Gene cloning
• Sequence analysis
• Flavonoid biosynthesis
• Cerebral blood flow
• G Quadruplex
• Plant genetics
• Intron mediated enhancement
• Double stranded helix
• Biological significance
• Arabidopsis thaliana
• Boron toxicity
• Posttranscriptional regulation
• Cell wall modification
• Ethylene metabolisms
• Characterizing ethylene pathway genes
• Citrus reticulata
• Fruit pulp development
• Postharvest storage
• Khasi mandarin fruit
• Panicum miliaceum L
• Genetic diversity
• SSR markers
• Grain yield stability
• Panicle and grain morphology
• Brachypodium distachyon
• B hybridum
• Flow cytometry
• Genome size variation
• Model grass genus
• Salt tolerance
• Essential oil productivity
• Ocimum basilicum L
• Hydroponic system
• Intracellular signaling cascades
• Mine site
• Abiotic stress
• Hyperaccumulator plant species
• Nonmine site plants
• Stressful environments
• Asymmetry index
• Somatic chromosome
• Asymmetrical karyotype
• Intrachromosomal asymmetry
• Chromosome morphology
• Endemic species
• Ecological niche modeling
• Local endemic chasmophyte
• Geological formation
• Ecosystem processes
• Bryophyte flora
• Morphological characters
• Anatomic characters
• Reproductive forms
• Eastern Black Sea Region
• Macrostructural properties
• Smaller fruit bodies
• Accompanying bryophytes
• Calcium signaling
• Signal transduction
• Adverse environmental stimuli
• CBL–CIPK signaling pathways
• Biomass production
• GA20 oxidase gene
• Melia azedarach L
• Xylem cells