International Journal of Environmental Sciences

Volume 2 Issue 3 2012           Pages:1818- 1832

Phytoplankton diversity in response to abiotic factors along Orissa coast, Bay of Bengal

Author Information:

Swati S. Panda, Dhal N.K and Panda C.R. - Institute of Minerals and Materials Technology (IMMT), Environment and Sustainability Department, Bhubaneswar-751013, India

The qualitative and quantitative distribution of phytoplankton with regional variation in the coastal waters of Orissa coast were presented out of the pooled data of eight stations sampled during summer season of 2008-09 and 2009-10.  Significant spatial variations in temperature, pH, salinity, dissolved oxygen, biochemical oxygen demand, nitrites, nitrates, ammonia, phosphate, silicate were monitored during the study. Total ninety five species of phytoplankton were recorded belonging to Bacillariophyceae, Dinophyceae, Cyanophyceae, Haptophyceae group. Phytoplankton density ranged from approximately 8460- 50720 nos. /l and showed complete dominance of diatom genera (Bacillariophyceae) in both the year in all stations. The concentration of chlorophyll-a ranged from 0.45 to 7.6 mg/m3. Statistical analysis predicted that the phytoplankton population was positively related to the chlorophyll-a concentration and nutrients. The present study indicates that the phytoplankton population, diversity and species composition fluctuate significantly in relation to the various physico-chemical parameters.

Keywords : Phytoplankton, Physico-chemical parameters, species abundance, chlorophyll-a.

DOI: 10.6088/ijes.00202030065

© 2012 Copyright Swati S. Panda et al, licensee IPA.This is an open access article distributed under the Creative Commons Attribution License (2.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The electronic version of the article can be downloaded below.

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