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Community composition, abundance, biomass and production rates of Tintinnids (Ciliata: Protozoa) in the coastal regions of Sundarban Mangrove wetland, India

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Title Community composition, abundance, biomass and production rates of Tintinnids (Ciliata: Protozoa) in the coastal regions of Sundarban Mangrove wetland, India
 
Creator Biswas, Sejuti Naha
Godhantaraman, Nallamuthu
Rakshit, Dibyendu
Sarkar, Santosh Kumar
 
Subject Tintinnids
Seasonal cycle
Algal bloom
Marine microbe
Indian Sundarban wetland
 
Description 163-173
The study presents the first preliminary
report on the community composition, abundance, biomass and production rate of
the ciliated tintinnids in the coastal waters of Sundarban mangrove wetland,
formed at the confluence of the Ganges River Estuary, India. Total 32 species under 5 agglomerated (29 species) and 3 non agglomerated
(3 species) genera have been identified from six sites of different hydrodynamic conditions. In
general, Tintinnopsis (22 species)
dominates the community structure followed by Leprotintinnus (2 species), Tintinnidium
(2 species), Stenosemella (2 sp),
Codonellopsis
(1 sp), Amphorellopsis (1 sp), Metacylis (1 sp) and Favella (1 sp). Pronounced
seasonal variations were noticed in environmental parameters and abundance,
biomass, production rates of tintinnids: Being the highest during pre monsoon
followed by post monsoon and monsoon. Water temperature, Chl a and salinity were found to regulate
the seasonal tintinnid variations as revealed by stepwise multiple regression
analyses.  Abundance, biomass and
production rate of tintinnid ranged from 75
- 1050 ind l-1, 0.06- 4.81 µgCl-1
and 0.006-7.65 µgCl-1day-1 respectively exhibiting
the maximum values (1050 ind l-1)
at Lot 8 (site 4) during premonsoon season. An
impoverishment of tintinnid population was observed due to occurrence of the
diatom bloom Hemidiscus hardmannianus [(Greville) Mann, 1907] during
July, 2010.
 
Date 2013-04-13T10:51:23Z
2013-04-13T10:51:23Z
2013-04
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/16924
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.42(2) [April 2013]