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Abstract - Issue Nov 2012, 33 (6) Back
nstantaneous and historical temperature effects on a-pinene
Copepod
population in Vellar estuary, Parangipettai coast in relation to
environmental conditions
Author
Details
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P.
Santhanam
(Corresponding author)
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Department of Marine Science, School of Marine Sciences,
Bharathidasan University,
Tiruchirappalli-620 024, India
e-mail: sanplankton@yahoo.co.in
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P.
Perumal
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Department
of Biotechnology, Periyar University, Salem-620 011, India
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S.
Ananth
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Department
of Marine Science, School of Marine Sciences, Bharathidasan University,
Tiruchirappalli-620
024, India
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A.
Shenbaga Devi
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Department
of Marine Science, School of Marine Sciences, Bharathidasan University,
Tiruchirappalli-620
024, India
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Publication
Data
Paper received:
28 January 2011
Revised received:
03 July 2011
Accepted:
06 August 2011
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Abstract
Distribution and abundance of copepods
were studied in relation to environmental conditions at two different
ecosystems viz: Neritic (Bay of Bengal) and estuarine (Vellar estuary)
of Parangipettai coast from September, 1998 to August, 2000. Over the study
period, total 85 species of copepods were reported. Among these, the calanoid
copepods constituted the major component with 63.52% followed by cyclopoids
(29.41%) and harpacticoids (7.05%). The copepods population density was found
to be high (2, 53, 000 org l-1) in estuarine water, while the species
diversity was higher (5.47) in neritic water. The observed spatio-temporal
variations in the population density and species diversity of copepods were
more related to the environmental state of respective study area.
Key words
Bay of Bengal, Vellar estuary, Nutrients, Copepods, Diversity
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