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    Seasonal abundance and diversity of culturable heterotrophic bacteria in relation to environmental factors in the Gulf of Antalya, Eastern Mediterranean, Turkey
    (Springer, 2015) Cardak, Mine; Ozbek, Elif Ozgur; Kebapcioglu, Turhan
    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 x 10(6) and 2.54 x 10(8) CFU ml(-1) throughout 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.
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    Spatio-Temporal Patterns of Abundance, Biomass and Length of the Silver-Cheeked Toadfish Lagocephalus sceleratus in the Gulf of Antalya, Turkey (Eastern Mediterranean Sea)
    (Central Fisheries Research Inst, 2017) Ozbek, Elif Ozgur; Cardak, Mine; Kebapcioglu, Turhan
    The variations in abundance, biomass and length frequency of 811 individuals of Lagocephalus sceleratus (Gmelin, 1789) according to the seasons, locations, and depth levels in the Gulf of Antalya were reported in this study. L. sceleratus was sampled from 61 of 116 hauls of commercial bottom trawl that were realized seasonally between August 2009 and April 2010, at six locations and at six depth levels (25, 50, 75, 100, 150, 200 m). The frequency of occurrence was 56.48% at the depths between 25 and 150 m, but the fish were absent at 200 m. The overall mean abundance was calculated as 136.21 ind./km(2) (11.67 ind./h) and biomass as 15.73 kg/km(2) (1.37 kg/h). The total length (TL) ranged from 11 to 50 cm, and the mean TL was calculated as 19.99 cm. According to the available data, this is the widest depth range of L. sceleratus and the deepest record of the species in the Mediterranean Sea.