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Growth of fouling diatoms from the Zuari estuary, Goa (west coast of India) under different salinities in the laboratory

DRS at CSIR-National Institute of Oceanography

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Title Growth of fouling diatoms from the Zuari estuary, Goa (west coast of India) under different salinities in the laboratory
 
Creator Redekar, P.D.
Wagh, A.B.
 
Subject Fouling diatoms
 
Description Diatoms take part in the initial process of fouling i.e. primary film formation. In order to understand the growth of the diatoms under different salinity conditions in the laboratory, this work was undertaken. Fouling diatoms on glass slides were incubated under three different salinities i.e. 15?, 25? and 35?o Totally 21 species of diatoms were incubated, and the following 12 species were found to show better growth : Amphora turgida, Biddulphia obtusa, Bacillaria paradoxa, Cocconeis littoris, Cymbella gastroides, Gramatophora marina, Licmophora gracilis, Navicula inflexa, N. oblonga, Nitzschia longissima, N. longissima var. closterium and N. sigma var. regidula. A maximum growth rate of 6105 cells / day was recorded in Navicula inflexa in 15? salinity. The species such as Navicula, Amphora and Biddulphia grew well in all the above salinities while Cymbella and Bacillaria preferred 15?. Generally the diatoms on the glass slide, which were not healthy, did not grow after incubation. The growth of the diatoms was also found to be satisfactory at higher salinities of 25? and 35?. Interestingly, diatoms which were not incubated also developed on the glass slide and this would possibly be due to the spores of such diatoms.
 
Date 2006-10-17T11:47:14Z
2006-10-17T11:47:14Z
2000
 
Type Journal Article
 
Identifier Seaweed Res. Util., vol.22(1&2), 121-124p.
http://drs.nio.org/drs/handle/2264/440
 
Language en
 
Rights This full-text version of the paper hosted with the permission
 
Format 46785 bytes
application/pdf
 
Publisher Seaweed research and Utilization Association