کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7465286 | 1484990 | 2015 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Time series monitoring of water quality and microalgal diversity in a tropical bay under intense anthropogenic interference (SW coast of the Bay of Bengal, India)
ترجمه فارسی عنوان
نظارت بر کیفیت زمانی و کیفیت آب و تنوع میکروالگل در یک خلیج گرمسیری تحت شدت تداخل انسان شناسی (ساحل دریای خلیج بنگال، هند)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
In recent decades, material fluxes to coastal waters from various land based anthropogenic activities have significantly been enhanced around the globe which can considerably impact the coastal water quality and ecosystem health. Hence, there is a critical need to understand the links between anthropogenic activities in watersheds and its health. Kakinada Bay is situated at the SW part of the Bay of Bengal, near to the second largest mangrove cover in India with several fertilizer industries along its bank and could be highly vulnerable to different types of pollutants. However, virtually, no data is available so far reporting its physicochemical status and microalgal diversity at this bay. In order to fill this gap, we conducted three time series observations at a fixed station during January, December and June 2012, at this bay measuring more than 15 physical, chemical and biological parameters in every 3Â h over a period of 36Â h in both surface (0Â m) and subsurface (4.5Â m) waters. Our results clearly depict a strong seasonality between three sampling months; however, any abnormal values of nutrients, biological oxygen demand or dissolved oxygen level was not observed. A Skeletonema costatum bloom was observed in December which was probably influenced by low saline, high turbid and high Si input through the river discharge. Otherwise, smaller diatoms like Thalassiosira decipiens, Thalassiothrix frauenfeldii, and Thalassionema nitzschioides dominated the bay. It is likely that the material loading can be high at the point sources due to intense anthropogenic activities, however, gets diluted with biological, chemical and physical processes in the offshore waters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Impact Assessment Review - Volume 55, November 2015, Pages 169-181
Journal: Environmental Impact Assessment Review - Volume 55, November 2015, Pages 169-181
نویسندگان
Aziz ur Rahman Shaik, Haimanti Biswas, N.P.C. Reddy, V. Srinivasa Rao, M.D. Bharathi, Ch.V. Subbaiah,