Google Search the Journal web-site:
|
Abstract - Issue Nov 2012, 33 (6) Back
nstantaneous and historical temperature effects on a-pinene
Phytoplankton
diversity in the Parangipettai coastal waters, southeast coast of India
Author
Details
|
M.
Rajkumar
|
Institute
of Oceanology, Chinese Academy of Sciences, Qingdao-266071, China
|
K.
Thillai Rajasekar
|
Centre
of Advanced Study in Marine Biology, Annamalai University, Parangipettai?608
502, India
|
Jun
Sun
(Corresponding author)
|
College of Marine Science and Engineering, Tianjin University of
Science and Technology,
Tianjin - 300457, China
e-mail : sunjun@qdio.ac.cn
|
I.R.
Jenkinson
|
Institute
of Oceanology, Chinese Academy of Sciences, Qingdao-266071, China
|
V.
Ashok Prabu
|
Centre
of Advanced Study in Marine Biology, Annamalai University, Parangipettai ?
608 502, India
|
P.
Perumal
|
Centre
of Advanced Study in Marine Biology, Annamalai University, Parangipettai ?
608 502, India
|
Publication
Data
Paper received:
29 October 2009
Revised received:
15 May 2010
Re-revised received:
10 November 2010
Accepted:
15
August 2011
|
Abstract
An
investigation was carried out during June 2005 to May 2007 on hydrography,
composition and community structure of phytoplankton including chlorophyll
a in Parangipettai coastal waters (southeast coast of India). Air and
surface water temperatures varied from 25.5 to 31.2 ?C and from 25 to 29.3?C,
respectively. Salinity values varied from 5 to 33.1? and the pH ranged
between 7.2 and 8.3. Dissolved oxygen content varied from 3.1 to 7.9 mg l-1 while the light
extinction coefficient values (LEC) ranged between 1.8 and 11.0 cm. The range
of inorganic nutrients viz., nitrate, nitrite, phosphate and silicate were:
6.5 - 27.0 ?M; 1.0 - 8.9 ?M; 0.1 - 3.0 ?M and 15.0 - 140 ?M, respectively.
The range of chlorophyll a was: 2.0 - 7.5 ?g l-1. Presently, 117 phytoplankton
species representing different classes viz: Bacillariophyceae (66);
Dinophyceae (22); Cyanophyceae (19); Chlorophyceae (7) and Chrysophyceae (3)
were recorded. The phytoplankton cell abundance varied from 0.14 to
132 cells ml-1,
with peak diversity (3.52 bits ind.-1) during summer season. The maximum abundance was found
during summer season coinciding with the stable hydrographical conditions.
Canonical Correspondence Analysis was applied in this study for
discriminating environmental factors effecting on phytoplankton community at
species level.
Key words
Phytoplankton
diversity, Canonical correspondence analysis, Parangipettai coastal waters
|
Copyright
? 2012 Triveni Enterprises. All rights reserved. No part of the Journal can be
reproduced in any form without prior permission. Responsibility
regarding the authenticity of the data, and the acceptability of the
conclusions enforced or derived, rest completely with the author(s).
|
|