塞瓦斯托波尔一些海湾水工结构的微生物特征

Y. Doroshenko
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摘要

水工构筑物经常出现在海湾中,是影响近岸水域状况的因素之一。在不同程度的人为压力和游憩压力的海岸带水工构筑物上形成的微浮游生物,具有最大的指示价值。周边植物的微生物学研究显著地补充了海岸生态状态的表征。本文研究了塞瓦斯托波尔湾南部防波堤和卡米绍瓦亚湾东部防波堤淤泥沉积物微浮游生物中异养细菌和烃类氧化细菌的数量分布。南部防波堤淤泥沉积物中异养细菌总数一般在103 ~ 104个细胞/ml之间,东部防波堤主要在103 ~ 105个细胞/ml之间。结果表明,研究水域的粉砂质沉积物对参与水域自净过程的细菌群的发育有影响,其数量与深度无关。数据分析表明,东部防波堤的异养细菌数量高于南部防波堤。被研究的细菌群数量的季节性差异没有被揭示。研究发现,石油和石油产品对海洋环境的自净化作用在防波堤外侧更为活跃,在防波堤南侧更为明显。
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MICROBIOLOGICAL CHARACTERISTICS OF THE HYDRAULIC STRUCTURES OF SOME SEVASTOPOL BAYS
Hydraulic structures, which are constantly present in bays, are one of the factors affecting the condition of coastal waters. Microperiphyton, which is formed on hydraulic structures in coastal zones with varying degrees of anthropogenic and recreational pressure, has the greatest indicative value. Microbiological studies of periphyton significantly complement the characterization of the ecological state of the coast. This study presents data on the quantitative distribution of heterotrophic and hydrocarbon-oxidizing bacteria in the microperiphyton of silt deposits of the southern breakwater of Sevastopol Bay and the eastern breakwater of Kamyshovaya Bay. The total number of heterotrophic bacteria in the silt deposits of the southern breakwater generally ranged from 103 to 104 cells/ml, while that of the eastern breakwater mainly varied within 103–105 cells/ml. The results obtained indicate that the silty deposits in the considered water areas to the development of the analyzed groups of bacteria participating in the processes of self-purification of water areas, and their number does not depend on the depth. Data analysis showed that the number of heterotrophic bacteria in the eastern breakwater was higher than in the southern breakwater. Seasonal differences in the number of studied groups of bacteria were not revealed. It was found that the processes of self-purification of the marine environment from oil and petroleum products are more active on the outer side of the breakwater, and these processes are more pronounced on the southern breakwater.
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