Show simple item record

dc.contributor.authorAnas, A.
dc.contributor.authorJasmin, C.
dc.contributor.authorSheeba V.A.
dc.contributor.authorGireeshkumar, T.R.
dc.contributor.authorNair, S.
dc.date.accessioned2016-01-08T06:45:38Z
dc.date.available2016-01-08T06:45:38Z
dc.date.issued2015
dc.identifier.citationOceanography: Open Access, vol.3(1); 2015; doi.10.4172/2332-2632.1000137
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/4889
dc.description.abstractAnthropogenic inputs influence the community structure and activities of microorganisms, which may impinge the functioning of estuarine and coastal ecosystem. The aim of the present study was to understand the influence of dissolved heavy metals (Cr, Mn, Fe, Ni, Cu and Zn) on community structure of cyanobacteria in a nutrient rich tropical estuary, Cochin Estuary (CE), across the southwest coast of India. Dissolved heavy metals were higher in CE during dry season, with Zn as major pollutant. The level of dissolved Zn was higher in stations near river head during dry (130 µg L-1) and wet seasons (105 µg L-1). The community structure of cyanobacteria was higher in CE during wet season (H’ index: 1.4 to 3.1) compared to that in dry season (H’ index: 1.1 to 2.2). The 16S rRNA gene sequence analysis showed the prevalence of Synechococcus sp in CE. PCA analysis indicated the positive influence of Zn and nutrients on community structure of cyanobacteria. We postulate that the Zn pollution may be a critical factor to be monitored and controlled in nutrient rich estuaries, otherwise it may accelerate the eutrophication and associated ecological constraints
dc.language.isoen
dc.publisherOMICS International
dc.rightsCopyright: © 2015 Anas A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.subjectGEOLOGY AND GEOPHYSICS
dc.subjectAQUATIC POLLUTION
dc.subjectAQUATIC POLLUTION
dc.subjectAQUATIC ECOLOGY, PRODUCTIVITY
dc.subjectMICROBIOLOGY
dc.titleHeavy metals pollution influence the community structure of Cyanobacteria in nutrient rich tropical estuary
dc.typeJournal Article


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record