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Bacteria and primary production

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Title Bacteria and primary production
 
Creator Devendran, K.
Sundararaj, V.
Chandramohan, D.
Krishnamurthy, K.
 
Description 139-141
Distribution of bacteria and bacterial activities in sediments in relation to primary production of overlying water at 10 stations in the backwaters and the adjoining mangrove forests (Pichavaram) were studied. Total nitrogen, total phosphorus and organic carbon of the sediments, and the nutrients and plant pigments of the water, were also estimated. Total bacterial population ranged from 1.48 x 106 to 13.10 x 106/g sediment. Phosphatase activity varied from 5.09 to 31.29 µ g phenol/g/hr. Phosphate solubilizing bacteria varied between 1.27 x 106 and 10.26 x 106/g sediment. Chlorophyll a, b and c varied from 3.68 to 31.88, 0 to 10.32 and 6.08 to 38.80 µu g/litre respectively, and carotenoids from 4.56 to 12.80 MSPU/m3. Gross production varied from 25. 21 to 336.12 mg C/m3/hr, and net production from 8.40 to 193.27 mg C/m3 /hr. Positive significant correlations were found between phosphatase producers and chl. a (r = 0.75), chl. a and net production r = 0.6) and phosphatase producers and phosphatase activity (r = 0.8). Similar relationships were also evident between the elements (nitrogen, phosphorus and carbon) and phosphatase producers, and the elements and phosphatase activity.
 
Date 2017-01-03T06:37:56Z
2017-01-03T06:37:56Z
1974-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39567
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.03(2) [December 1974]