Record Details

Ecology of phytoplankton from Dharmatar Creek, west coast of India

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Ecology of phytoplankton from Dharmatar Creek, west coast of India
 
Creator Tiwari, L.R.
Nair, V.R.
 
Subject phytoplankton
cell counters
chlorophylls
species diversity
dominant species
vertical mixing
limiting factors
Skeletonema
Thalassiosira
Peridinium
 
Description Phytoplankton pigment, cell count and species diversity wee studied at five locations in Dharamtar Creek during September 1984 to November 1985. Chemical parameters indicated a healthy system free of any environmental stress. The water was vertically mixed except during the monsoon period and nutrients never became a limiting factore for phytoplankton production. Concentration of chlorophyll a and phaeophytin were fairly high, (av. 1.94 and 1.89 mg m sup(-3) respectively). A total of 58 general of phytoplankton comprising 46 diatoms, 6 dinoflagellates and 6 other algae were recorded from the area. Thalassiosira dominated the phytoplankton community. In the interior part of the creek blooms of Skeletonema and Peridinium were respectively observed during October-November and December. Correlation between chlorophyll a and cell count was significant while there was no correlation between phytoplankton and different physico-chemical parameters. Margalefs diversity index D varied from 1.14 to 4.93 with higher diversity towards the outer than the interior zone. In general the creek sustained a rich and diverse phytoplankton community.
 
Date 2009-01-11T11:47:46Z
2009-01-11T11:47:46Z
1998
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, Vol.27; 302-309p.
http://drs.nio.org/drs/handle/2264/1877
 
Language en
 
Rights Copyright [1998]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher NISCAIR, CSIR