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Phytoplankton community structure along offshore transects of some Indian estuaries of east coast: An experience with a summer cruise

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Title Phytoplankton community structure along offshore transects of some Indian estuaries of east coast: An experience with a summer cruise
 
Creator Baliarsingh, S. K
Srichandan, S.
Pati, S.K.
Sahu, K.C.
Dash, S.K.
Lotliker, Aneesh A.
Kumar, T. Srinivasa
 
Subject Phytoplankton
Diversity
Composition
Chlorophyll
Non-metric multi-dimensional scaling
 
Description 960-973
This paper is based on the analyses of samples collected during a summer cruise onboard CRV ‘Sagar Paschimi’ (Cruise no.09/11) from 1st to 8th of April 2011. Species composition, abundance and distribution of phytoplankton, and water quality parameters (transparency, water temperature, salinity, pH, dissolved oxygen, nutrients viz. NO2, PO4 and chlorophyll-a) were examined in this study. A total of 123 phytoplankton species were identified. Of total, 86 species of diatoms from 44 genera, 22 species of dinoflagellates from 10 genera, 5 species of green algae from 5 genera, 4 species of cyanobacteria from 4 genera, 2 species of cocolithophores from 2 genera and 1 species of silicoflagellate were identified. Phytoplankton communities were found to vary from transect to transect. Highest and lowest values for species diversity index are associated with Godavari and Gosthani transects respectively. The highest phytoplankton abundance was found at transect Krishna (26680 cells/l) and the lowest at Godavari (9480 cells/l). Thalassiothrix longissima was quantified as the dominant
species among diatoms and Dinophysis caudata among dinoflagellates. Abundance of bloom forming species Asterionellopsis glacialis was observed at transects Godavari & Mahanadi. Diversity and evenness indices of phytoplankton were found highest at Godavari transect. There exhibited a linear relationship between chlorophyll-a and phytoplankton abundance at all the transects with deviations at Gosthani and Godavari.
 
Date 2016-08-18T09:23:59Z
2016-08-18T09:23:59Z
2016-08
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/35180
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.45(08) [August 2016]