Studies on phytoplankton diversity in response to abiotic factors in Veeranam lake in the Cuddalore district of Tamil Nadu.
J Environ Biol
;
2008 Sep; 29(5): 747-52
Article
in English
| IMSEAR
| ID: sea-113550
ABSTRACT
The phytoplankton samples were collected from the Veeranam lake for a period of one year from March-2005 to February-2006. The physico-chemical parameters of water such as air-temperature, water temperature, pH, salinity, dissolved oxygen, electrical conductivity and total dissolved solids were observed and their ranges were 30.1-36.5 degrees C, 29.0-34.4 degrees C, 7.9-8.4, 1.2-2.5 mgl(-1), 7.6-9.2 microS and 2.5-5.2 mgl(-1). Totally 160 species of phytoplankton belonging to different taxonomic groups were identified. Among these 74 species to belong to Bacillariophyceae, 43 species to Chlorophyceae, 38 species to Cyanophyceae and 5 species to Euglenophyceae. The phytoplankton density was high (1705 cells l(-1)) during the summer season and low (760 cells l(-1)) during the winter season. Bacillariophyceae formed the dominant group. Species diversity index (H'), species richness (SR) and species evenness (J') were calculated.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Oxygen
/
Phylogeny
/
Phytoplankton
/
Seasons
/
Temperature
/
Sodium Chloride
/
Biodiversity
/
Electric Conductivity
/
Fresh Water
/
Hydrogen-Ion Concentration
Type of study:
Prognostic study
Country/Region as subject:
Asia
Language:
English
Journal:
J Environ Biol
Year:
2008
Type:
Article
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