TAILIEUCHUNG - Assessment of benthic diatoms taxonomic diversity at coastal biotopes with different anthropogenic impact (Crimea, the Black Sea)

An analysis of the taxonomic diversity of benthic diatoms was carried out for near-shore biotopes of Crimea with different content of trace metals and organic pollutants (PCBs, PAHs, DDTs). Taxonomic distinctness indices such as average taxonomic distinctness, AvTD (Δ+) and variation in taxonomic distinctness, VarTD (Λ+) were used for evaluation of the hierarchical structure of diatom taxocenes of two intact sites (Dvuyakornaya Bay and Cape Fiolent) and two heavily polluted water areas (Sevastopol Bay and Balaklava Bay). The highest similarity of species was revealed between healthy biotopes, in spite of their differences in hydrological and hydrochemical conditions. AvTD values for Dvuyakornaya Bay and Cape Fiolent (Δ+ = and , respectively) were lower in comparison with expected average levels (Δ+ = ) evaluated for the flora of benthic Bacillariophyta (1094 species) registered for the Northern part of the Black Sea (NPBS). | Turkish Journal of Botany Turk J Bot 2019 43 608-618 http botany TÜBİTAK Research Article doi bot-1903-43 Assessment of benthic diatoms taxonomic diversity at coastal biotopes with different anthropogenic impact Crimea the Black Sea Elena L. NEVROVA Alexei N. PETROV Benthos Ecology Department Kovalevsky Institute of Marine Biological Research Russian Academy of Sciences Moscow Russian Federation Received Accepted Published Online Final Version Abstract An analysis of the taxonomic diversity of benthic diatoms was carried out for near-shore biotopes of Crimea with different content of trace metals and organic pollutants PCBs PAHs DDTs . Taxonomic distinctness indices such as average taxonomic distinctness AvTD Δ and variation in taxonomic distinctness VarTD Λ were used for evaluation of the hierarchical structure of diatom taxocenes of two intact sites Dvuyakornaya Bay and Cape Fiolent and two heavily polluted water areas Sevastopol Bay and Balaklava Bay . The highest similarity of species was revealed between healthy biotopes in spite of their differences in hydrological and hydrochemical conditions. AvTD values for Dvuyakornaya Bay and Cape Fiolent Δ and respectively were lower in comparison with expected average levels Δ evaluated for the flora of benthic Bacillariophyta 1094 species registered for the Northern part of the Black Sea NPBS . As established the taxonomic trees of the diatom taxocenes at pristine water areas are characterized by a moderate degree of vertical evenness and high variability of distances between neighboring clusters of species they are mainly formed by polyspecific branches close on the genus level. The AvTD values for diatom taxocenes of the heavily polluted Sevastopol Bay Δ and Balaklava Bay Δ were significantly higher than the corresponding indices for undisturbed biotopes and exceeded the expected average level for the entire list of .

• Sinh học
• Journal of Botany
• Benthic diatoms
• Hierarchical structure
• Taxonomic indices
• Average taxonomic distinctness
• Variation in taxonomic distinctness
• 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