Prasad V R, Srinivas T N R, Sarma V V S S
CSIR-National Institute of Oceanography, Regional Centre, 176, Lawsons Bay Colony, Visakhapatnam 530 017, India.
CSIR-National Institute of Oceanography, Regional Centre, 176, Lawsons Bay Colony, Visakhapatnam 530 017, India.
Mar Pollut Bull. 2015 Jun 15;95(1):115-25. doi: 10.1016/j.marpolbul.2015.04.032. Epub 2015 Apr 29.
In order to examine the influence of discharge from different rivers from peninsular India and urban sewage on intensity and dissemination of heterotrophic, indicator and pathogenic bacteria, a study was carried out during peak discharge period along coastal Bay of Bengal. The coastal Bay received freshwater inputs from the river Ganges while Godavari and Krishna contributed to the south. Contrasting difference in salinity, temperature, nutrients and organic matter was observed between north and south east coast of India. The highest heterotrophic, indicator and pathogenic bacterial abundance was observed in the central coastal Bay that received urban sewage from the major city. Intensity and dissemination of heterotrophic, indicator and pathogenic bacteria displayed linear relation with magnitude of discharge. The coliform load was observed up to 100km from the coast suggesting that marine waters were polluted during the monsoon season and its impact on the ecosystem needs further studies.
为了研究印度半岛不同河流的排放以及城市污水对异养菌、指示菌和病原菌的强度及传播的影响，在孟加拉湾沿岸的洪水期进行了一项研究。孟加拉湾沿岸接收了来自恒河的淡水，而戈达瓦里河和克里希纳河则为南部地区提供水源。印度东北海岸和东南海岸在盐度、温度、营养物质和有机物方面存在显著差异。在接收主要城市城市污水的中部沿海湾，观察到异养菌、指示菌和病原菌的丰度最高。异养菌、指示菌和病原菌的强度及传播与排放量呈线性关系。在距离海岸100公里处仍观察到大肠菌群负荷超标，这表明季风季节海水受到污染，其对生态系统的影响需要进一步研究。
