Seasonal abundance and diversity of culturable heterotrophic bacteria in relation to environmental factors in the Gulf of Antalya, Eastern Mediterranean, Turkey

• Published in: World journal of microbiology & biotechnology Vol. 31; no. 4; pp. 569 - 582
• Main Authors: Cardak, Mine, Oezguer Oezbek, Elif, Kebapciolu, Turhan
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer-Verlag 01.04.2015; Springer Netherlands; Springer Nature B.V
• Subjects: Abiotic factors; Abundance; Actinobacteria; Analysis; Applied Microbiology; Bacteria; Bacteria - classification; Bacteria - genetics; Bacteria - growth & development; Bacteria - isolation & purification; Biochemistry; Biodiversity; Biomedical and Life Sciences; Biotechnology; chemical composition; Environmental Engineering/Biotechnology; Environmental factors; Eutrophication; Flavobacteria; gamma-Proteobacteria; Gulfs; Heterotrophic Processes; Laboratories; Life Sciences; Microbiology; Mineralization; Nutrients; Oceans; Original Paper; Proteobacteria; Rivers; Salinity; Seasons; Seawater - chemistry; Seawater - microbiology; Stations; Studies; Turkey; Turkey (country); France; Turkey; Antalya; Dissolved nutrients; Bacterial diversity; Mediterranean Sea; Culturable heterotrophic bacteria
• ISSN: 0959-3993; 1573-0972
• DOI: 10.1007/s11274-015-1810-9

The abundance of culturable heterotropic bacteria studied on and according to depth levels and seasons in the Gulf of Antalya. Environmental factors were compared regarding culturable heterotrophic bacteria abundance and diversities of bacteria. During the study period (between August 2009 and April 2010, seasonally in the Gulf of Antalya, at six stations and six depth levels (0–20 cm, 10, 25, 50, 100, 200 m). The bacterial isolates were identified in the automated micro identification system VITEK 2 Compact 30 (Biomereux, France). The mean abundance was higher in Sts. D, E and F than Sts. A, B and C, located in the eastern part of the gulf. The mean abundance decreased as the depth level increased. The mean abundance of CHB ranged between 8.15 × 10⁶and 2.54 × 10⁸ CFU ml⁻¹throughout the year. Abundance of CHB differed according to the variations of biotic and abiotic factors. A total of 27 taxa of bacteria including six bacterial classes were reported in this study as the first records for the Gulf of Antalya. Six bacterial classes: Gamma Proteobacteria (46.81 %), Bacilli (27.66 %), Beta Proteobacteria (12.77 %), Alfa Proteobacteria (6.38 %), Actinobacteria (4.26 %) and Flavobacteria (2.13 %) were determined. The study resulted in increased knowledge on the composition and biochemical response of bacteria isolated from eutrophic and oligotrophic areas. 23 bacteria species belonging to 16 families were reported.