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Efficacy of commercial shrimp farm bioremediators in removing ammonia in microcosm experiments

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Relation http://eprints.cmfri.org.in/6277/
 
Title Efficacy of commercial shrimp farm
bioremediators in removing ammonia in
microcosm experiments
 
Creator Ghosh, Shubhadeep
Sasmal, Debasis
Jawahar Abraham, T
 
Subject Prawn and Prawn fisheries
 
Description The efficacy of two commercial
aquaculture bioremediators to remove
ammonia was tested under laboratory
conditions. The bioremediators were
capable of removal of total ammoniacal
nitrogen (TAN) to the tune of 86 - 90%
(max) at 1-3 ppm initial level of ammonia
(NH3) and the removal rate decreased
thereafter. Significant differences in
nitrite (NO2) levels in treated and control
tanks were observed probably due to the
differences in the levels of resident
nitrifying bacteria that utilize NH3 and
oxidize it to NO2. The nitrate levels
increased in all the treatment tanks, but
showed a general decreasing trend in
control tanks. Among the tanks with
varied NH3 concentrations, the levels of
NO3 between the control and treatment
tanks differed insignificantly (P>0.05).
The results of the present study revealed
that the commercial bioremediators
failed to remove majority of the total
ammoniacal nitrogen when the NH3 level
is high initially.
 
Publisher CMFRI/ICAR
 
Date 2006
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/6277/1/8.pdf
Ghosh, Shubhadeep and Sasmal, Debasis and Jawahar Abraham, T (2006) Efficacy of commercial shrimp farm bioremediators in removing ammonia in microcosm experiments. Indian Journal of Fisheries, 53 (4). pp. 469-473.