INT J CURR SCI 2012, 4: 21-29 RESEARCH ARTICLE ISSN 2250-1770 Studies on fresh water algae in relation to chemical constituents of Thiruneermalai temple tank near Chennai, India-I Anuja Ja and S.Chandrab* aDepartment of Botany, PSG CAS, Coimbatore-641 014, India bDepartment of Botany, Queen Marrys College, Chennai-600 004, India *Corresponding author: E-Mail:
[email protected] Abstract A preliminary investigation was carried out for six months from Apr’ 2007 to Sep’ 2007 to access the status of algal biodiversity of Thiruneermalai Temple tank near Pallavaram (Chennai). The algae identified in this temple tank belong to the Classes, Cyanophyceae, Chlorophyceae, Bacillariophyceae and Euglenophyceae. Physical parameters such as light intensity, pH, humidity, water temperature, atmospheric temperature, odour, appearance, turbidity NTU, TDS, electrical conductivity, and chemical parameters such as total hardness, calcium, magnesium, sodium, potassium, manganese, free ammonia, nitrate, nitrite, chloride, sulphate, phosphate, silca, BOD were recorded. The biological indices of water quality of all the seasons were determined using appropriate statistical method to assess the trophic status of the temple tank. Key words: fresh water algae, temple tank, aquatic ecosystem, phytoplankton Received: 19th April; Revised: 26th May; Accepted: 20th June; © IJCS New Liberty Group 2012 Introduction are the two main activities in this temple tank, in Algae constitute a major part of primary addition to the usage for spiritual activities. producers in aquatic ecosystem and are ubiquitous Material and Methods components of the biosphere (Raj et al., 1981; Study area Ahluwalia, 1993). They occur in a wide variety of It is located at 12o57’44” north longitudes habitats and play an important role in nature.