Investigation of the Levels of Bio-Indicator Bacteria in the Kınalıada Coastal Area, Istanbul, Turkey

Coastal areas have an important place in island ecosystems. These areas, which may be fragile depending on the impact of human activities exposed and other environmental factors addition to domestic, agricultural industrial activities, it hosts intensive touristic use spring summer. In this study, closest contact with shores a mainland like Istanbul, among Prince Islands Marmara Sea is under influence vast majority pollution load Kınalıada has been selected as research area. Total heterotrophic aerobic bacteria (HAB) levels were analyzed using spreading plate method. The fecal coliform (FC), total (TC) intestinal streptococci (IS) examined Membrane Filtration Technique surface water samples. Variable parameters (dissolved oxygen, pH, salinity, temperature) recorded periodically Multiparameter (YSI 556 MPS) seawater Nutrient salts (nitrite nitrogen, nitrate ammonium phosphate phosphor), trophic level indicator Chlorophyll-a spectrophotometric methods. While highest TC, FC IS detected 96x103 CFU/100 ml, 49x103 82x103 respectively. HAB was determined 92x1011CFU /ml .Variable for temperature between 25.7-6.89˚C, pH 11.55 -3.60, dissolved oxygen 19.98 -1.66 mg /l salinity ‰ 29.11-21.18 during study period. salts; nitrite nitrogen 0.21-0.01 mg/l; 9.90-0.13 4.80-0.02 phosphor 22.45-0.01 mg/l. FC, TC coastal area fluctuate seasons, but these are above legal limits. presence bio-indicator border throughout sampling shows that poses serious risk ecosystem health public health.