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Seasonal variation of phytoplankton community in Gopalpur Creek: a tropical t idal backwater ecosystem, East Coast of India

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Title Seasonal variation of phytoplankton community in Gopalpur Creek: a tropical t idal backwater ecosystem, East Coast of India
 
Creator Baliarsingh, S. K.
Sahu, Biraja Ku.
Srichandan, S.
Sahu, K.C
Lotliker, Aneesh.A
Kumar, T. Srinivasa
 
Subject Phytoplankton
Seasonal
Gopalpur creek
East coast of India
 
Description 622-634
Present study consists of phytoplankton
community of Gopalpur creek in pre-monsoon, monsoon and post-monsoon season There
was a significant seasonal variation in water temperature (p < 0.01). Salinity and pH
varied significantly
(p < 0.05) among the stations.
Chlorophyll a and phytoplankton
density found to vary significantly (p
< 0.01) among seasons rather than the stations. A total of 99 phytoplankton
species were identified. Diatoms formed 77, dinoflagellates 14, green algae
five, blue green algae two and cocolithophore one species. Phytoplankton
species composition was found dissimilar in the three seasons. In pre-monsoon Noctiluca
scintillans, Thalassiothrix longissima,
Odontella sinensis, Thalassionema nitzschioides, Coscinodiscus
gigas, Rhizosolenia alata formed the dominant species. In monsoon, Rhizosolenia
alata, Pleurosigma elongatum, Melosira sulcata, Amphora
coastatum, Rhizosolenia setigera dominated the phytoplankton
population. In post-monsoon Odontella sinensis, Rhizosolenia setigera,
Coscinodiscus gigas, Thalassiothrix longissima, Noctiluca
scintillans, Oscillatoria spp. dominated. Univariate
diversity indices showed maximum diversity during post-monsoon. Pielou’s
evenness (J’) and Simpson’s dominance have shown little variation among the
seasons.
 
Date 2013-12-13T12:22:17Z
2013-12-13T12:22:17Z
2013-09
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/24788
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.42(5) [September 2013]