Record Details

Microbial flora and dehydrogenase activity of beaches

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Microbial flora and dehydrogenase activity of beaches
 
Creator Bharathi, P. A. Loka
Nair, Shantha
Karanth, N. G. K.
 
Description 91-94
Heterotrophic bacterial flora of beaches, viz. Velsao (open sea beach receiving nitrogenous wastes from a fertilizer factory) and Dias (estuarine beach free from contamination) were studied. At Velsao, Goa, India, the organic carbon content in the sand was lower (0.18%) than at Dias (0.45%). Nitrate nitrogen content of the former was very high (619.36µg at N/litre), as compared to the latter (4.52 µg at N/litre). Though Dias Beach was rich in both terrestrial and marine flora (12.8 and 8.6 x 103/g dry wt of sediment respectively), the percentage of proteolytic bacteria and nitrate reducers were more at Velsao. This indicates that the latter has a low organic carbon and high nitrogen content. Microbial flora was correlated with the dehydrogenase activity so as to determine the use of dehydrogenase activity at an index of beach pollution. Dehydrogenase activity at Dias was twice that of Velsao. The peak value was attained on the 5th day of incubation in samples from Dias (0.54 mg/g dry wt sediment) and on the 3rd day in samples from Velsao (0.26 mg/g dry wt sediment).
 
Date 2016-12-30T05:36:07Z
2016-12-30T05:36:07Z
1977-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39355
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.06(1) [June 1977]