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Ecophysiology of Nontuberculous mycobacteria in Marine aquaculture ponds

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Relation http://eprints.cmfri.org.in/7505/
 
Title Ecophysiology of
Nontuberculous mycobacteria in
Marine aquaculture ponds
 
Creator Latha, M M
 
Subject Microbiology
Theses
 
Description 1. Studies on the "Ecophysiology of Nontuberculous Mycobacteria in marine
aquaculture ponds" was carried out based on the samples collected from
aquaculture ponds and cultured tilapia(Oreochromis mossambicus) at
Narakkal(Station I) and Valappu(Station II) during March 1999 to
February2000. An account of NTM are given with Intensity charts and
Tables.
2. Nontuberulous mycobacteria are relatively common aquatic environmental
bacteria. This means that they can live in the aquatic environment and do
not require the presence of fish or fish tissue to survive. They have been
frequently isolated from coastal waters, sediments and aquaculture
facilities.
3. The physico-chemical parameters except temperature was found to be
fluctuating widely in both perennial (Station l) and pokkali(Station II)
aquaculture ponds studied. The nutrient profile exhibited by station II
showed that it is more fertile than Station l.
4. Mean TPC values from fish and environmental samples of pre monsoon,
monsoon and post monsoon seasons of both the sites were varying with
less count of heterotrophs in gill and liver tissues of the fish.
5. Post monsoon showed less TMC values compared to other two seasons.
6. Membrane filtration technique was found as effective in retrieving
maximum TPC and TMC from samples of water.
7. Decontamination technique with 4% NaOH and further treatment with
physiological saline recovered NTM from all the samples studied.
8. Both heterotrophic as well as mycobacterial occurrences were observed
high in Narakkal.
9. Statistically significant positive and negative correlations observed in the
study between heterotrophs, mycobacteria and physico-chemical
parameters and within these parameters strongly indicating the overall
biotic and abiotic interrelationships, which stabilizes microbial
environment in aquaculture systems.
 
Date 2004
 
Type Thesis
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/7505/1/TH-136.pdf
Latha, M M (2004) Ecophysiology of Nontuberculous mycobacteria in Marine aquaculture ponds. ["eprint_fieldopt_thesis_type_phd" not defined] thesis, Cochin University of Science and Technology, Cochin.