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Nair, S; Bharathi, Pal; Chandramohan, D. |
Cuturable heterotrophic bacterial counts (viable counts: VC) by surface plating on ZoBell medium and total bacterial counts (TC) by epifluorescence microscopy were carried out in sea water off the southwest coast of India during the monsoon. TC were three orders of magnitude higher than VC. Pseudomonas/Alteromonas group I was dominant in both nearshore and offshore regions. Pigmented bacteria were more abundant in offshore stations and showed multiple antibiotic resistance. Statistically there was found to be no significant differences in bacterial number and their activities between offshore and nearshore isolates. Nevertheless, the former tend to be more versatile and resistant to metals and drugs. |
Tipo: Text |
Palavras-chave: HETEROTROPHIC CULTURABLE BACTERIA; PHYSIOLOGICAL PROPERTIES; EUPHOTIC ZONE; INDIAN OCEAN. |
Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00099/21015/18641.pdf |
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Loka Bharathi, Pa; Nair, S; Bd De Souza, Mj; Chandramohan, D. |
During the austral summer, we examined the bacterial population along the cruise track extending from 70degrees S and 18degrees E to 30degrees S and 35degrees E. During the cruise, three distinct fractions of the bacterioplankton viz. total count, total direct viable and retrievable counts were simultaneously enumerated in these waters. In the stations south of the convergent region designated as section I the population ranged within 10(8-9) L-1 whereas in the north of the region designated as section 11 they were one order higher and ranged from 10(9-10) L-1. The percentage of viability in the region was high corresponding to the generally high chlorophyll and primary productivity encountered in the eastern Aghulas bank. The study substantiates the... |
Tipo: Text |
Palavras-chave: Bactérie; Viabilité; Océan Antarctique; Secteur indien; Bacteria; Viability; Antarctic ocean; Indian side. |
Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/00322/43334/42893.pdf |
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