Seasonal and spatial distribution of heterotrophic bacteria in relation to physico-chemical properties along Ennore coastal waters
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive Info| Field | Value | |
| Title |
Seasonal and spatial distribution of heterotrophic bacteria in relation to physico-chemical properties along Ennore coastal waters
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| Creator |
Bharathi, M. D.
Sundaramoorthy, S. Patra, Sivaji Madeswaran, P. Sundaramanickam, A. |
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| Subject |
Heterotrophic bacteria
BOD DO Correlation analysis Ennore |
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| Description |
587-597
Water samples were examined for total viable count and pollution indicator bacteria (total coliform, fecal coliform, <em>Escherichia coli</em> and <em>Streptococcus faecalis</em>). Salinity, <em>p</em>H, dissolved oxygen, biological oxygen demand, nutrients and Chlorophyll-<em>a</em> were examined to assess the physico-chemical condition of water. Statistically, insignificant seasonal variation was found in bacterial populations. Average abundances (CFU/ml) of the different heterotrophic bacteria of surface waters were: total viable count (2.1×10<sup>6</sup>), total coliforms (1.3×10<sup>5</sup>), fecal coliforms (1.5×10<sup>4</sup>), <em>Escherichia coli</em> (1.1×10<sup>4</sup>) and <em>Streptococcus faecalis</em> (0.4×10<sup>4</sup>). Spatially, the higher bacterial population was recorded in creek and shore regions with high concentration of nutrients. Significant positive correlation (<em>p</em> <em><</em> 0.05) was observed between bacterial population and the nutrient concentration which suggest that elevated nutrient load favors the bacterial growth. However, bacterial populations showed positive correlations with biological oxygen demand, and negative relationship (<em>p</em> <em><</em> 0.05) with salinity, indicating the dominating influence of anthropogenic activities in the coastal area. |
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| Date |
2018-03-27T05:55:01Z
2018-03-27T05:55:01Z 2018-03 |
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| Type |
Article
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| Identifier |
0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/44125 |
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| Language |
en_US
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| Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
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| Publisher |
NISCAIR-CSIR, India
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| Source |
IJMS Vol.47(03) [March 2018]
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