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Title: Ecology and population density of the marine actinobacteria of little Andaman island, India
Authors: Sethubathi, G. Vijayabaskara
Sivakumar, K.
Thangaradjou, T.
Kannan, L.
Keywords: Ecology;Marine actinobacteria;Little Andaman Island
Issue Date: Jun-2013
Publisher: NISCAIR-CSIR, India
Abstract: In Little Andaman Island Water nutrient levels of silicate (0.19 – 5.88 µM); inorganic phosphate (0.02 – 0.93 µM); nitrate (0.103 – 4.91 µM); nitrite (0.004 – 0.130 µM) and POC (1.13 – 4.95 mg C l-1) were comparable to those recorded in the other reef environments of India. Sediment macronutrients viz. nitrogen (15 kg/ha to 43.0 kg/ha), phosphorous (1.0 kg/ha to 10.0 kg/ha) and potassium (45.0 to 137.0 kg/ha) recorded from the different locations of the Little Andaman island showed significant variation among the stations (0.05%). Sediment trace elements viz. iron (5.24 – 10.2ppm), manganese (1.85 – 5.69ppm), zinc (0.67 – 2.55ppm) and copper (0.19 – 1.17ppm) showed significant variation (ANOVA 0.05%) among different locations. Higher population density of actinobacteria in the water samples was recorded at station 4, Chandra Nallah coast (17 × 10-3 CFU/g) and the lower density in the waters of station 10, South Bay (1.2 × 10-3 CFU/g). In the sediments, maximum population density (9.7 x 10-4 CFU g-1) was recorded in Capel Rock (station 9) while the minimum (0.8 x 10-4 CFU g-1) was recorded in Antegeleda (station 12).
Page(s): 390-401
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.42(3) [June 2013]

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