The composition and metabolic properties of cultivable heterotrophic aerobic bacteria, the levels of indicator bacteria, and physicochemical parameters were investigated in the seawater samples collected from 20 stations in coastal areas of the eastern part of the Black Sea, Turkey, between May 2017 and February 2018. The levels of indicator bacteria were detected above the national limit values during the study period. Thirty-five different bacterium species were identified. Enterobacteriaceae was recorded as the most dominant family (34.2%), and Gammaproteobacteria was recorded as the most dominant class (74.2%). Bacteriological threats on human and ecosystem health were determined in coastal areas of the Southeastern Black Sea. The determination of the high levels of indicator bacteria, the high ratio of fecal coliform/fecal streptococci (FC/FS ratio), and pathogenic bacteria regarding human and ecosystem health showed that these coastal areas under the influences of terrestrial and human-sourced bacteriological pollution. This study has contributed to the increase of knowledge of understanding the protection and rehabilitation ways of the Black Sea coastal regions against land-based pollution sources considering the interdependent structure of all Black Sea countries. Coastal areas are accepted as the most fragile part of the marine environments and our findings showed the potential bacteriological risks in coastal areas of the Southeastern Black Sea as an important example. Serious precautions should be taken for the protection in this area and such coastal ecosystems to prevent hazardous problems.

中文翻译：

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沿海地区可培养细菌的组成，细菌污染和环境变量：以土耳其东南黑海为例。

2017年5月至2018年2月，从土耳其黑海东部沿海地区20个站点收集的海水样本中调查了可培养的异养需氧细菌的组成和代谢特性，指示菌水平以及理化参数在研究期间，检测到的指示菌水平超过了国家限值。鉴定了35种不同的细菌。肠杆菌科是最主要的家族（占34.2％），而丙型杆菌属是最主要的家族（占74.2％）。在东南黑海的沿海地区确定了对人类和生态系统健康的细菌学威胁。确定指示剂细菌的含量高，粪便大肠菌/粪便链球菌的比例很高（FC / FS比），而与人类和生态系统健康有关的致病菌表明，这些沿海地区受到了陆地和人为细菌污染的影响。考虑到所有黑海国家的相互依存结构，这项研究有助于增进人们对黑海沿海地区针对陆地污染源的保护和恢复方式的认识。沿海地区被认为是海洋环境中最脆弱的部分，我们的发现表明东南黑海沿海地区的潜在细菌学风险是一个重要的例子。在该地区和沿海生态系统中应采取认真的预防措施，以防止发生危险问题。有关人类和生态系统健康的致病菌表明，这些沿海地区受到了陆地和人为来源的细菌污染的影响。考虑到所有黑海国家的相互依存结构，这项研究有助于增进人们对黑海沿海地区针对陆地污染源的保护和恢复方式的认识。沿海地区被认为是海洋环境中最脆弱的部分，我们的发现表明东南黑海沿海地区的潜在细菌学风险是一个重要的例子。在该地区和沿海生态系统中应采取认真的预防措施，以防止发生危险问题。有关人类和生态系统健康的致病菌表明，这些沿海地区受到了陆地和人为来源的细菌污染的影响。考虑到所有黑海国家的相互依存结构，这项研究有助于增进人们对黑海沿海地区针对陆地污染源的保护和恢复方式的认识。沿海地区被认为是海洋环境中最脆弱的部分，我们的发现表明东南黑海沿海地区的潜在细菌学风险是一个重要的例子。在该地区和沿海生态系统中应采取认真的预防措施，以防止发生危险问题。