Record Details

<span style="font-size:14.0pt;line-height: 115%;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; color:black;mso-ansi-language:EN-IN;mso-fareast-language:EN-IN;mso-bidi-language: HI" lang="EN-IN">Bacterial and protozoan (Ciliate) diseases of <span style="font-size:14.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:HiddenHorzOCR;color:black;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI" lang="EN-IN">praw <i><span style="font-size:14.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";color:black;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI" lang="EN-IN">Penaeus indicus </span></i><span style="font-size:14.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";color:black;mso-ansi-language:EN-IN; mso-fareast-language:EN-IN;mso-bidi-language:HI" lang="EN-IN">(Decapoda: Crustacea)</span></span></span>

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Bacterial and protozoan (Ciliate) diseases of praw Penaeus indicus (Decapoda: Crustacea)
 
Creator Jayakumar, R
Ramasamy, P
 
Description 285-296
A survey was
carried out on the prevalence of bacteria and ciliate protozoan of Penaeus
indicus obtained from Ennore estuary, Chennai (Madras),
India
from November 1989 to July 1992. The study revealed the occurrence of Vibrio

parahaemolyticus,
V.vulnificus, V. harveyi; V. anguillarum, V. damsela,
Pseudomonas sp., P. aeruginosa and a filamentous bacterium Leucothrix
sp. This study also revealed the occurrence of three different peritrichous
ciliates viz .. Zoothamnium sp., Epistylis sp. and Vorticella sp.
and a loricate ciliate Lagenophrys sp. Zoothamnium  sp ., Epistylis sp. and Vorticella
sp.

were
recorded on the body surface, gills, appendages and pleopods. Trophonts of Zoothamnium
sp. occurred as branched colonies with contractile stalk with myoneme. Epistylis
sp. also consisted of branched colonies but was lacking myoneme. In
contrast the Vorticella sp. occurred as individual trophonts with a
contractile stalk. Scanning electron microscopy of Epistylis sp.
revealed the surface topography, convoluted ridges over the trophont surface
and stalk. Both Pseudomonas spp. and Vibrio spp. caused darkening
of cuticle, loss of appendage setae and their hairs in the pleopods and uropods,
blister in

the gills
and accumulation of hemocytes at the infected sites. Minimum inhibitory
concentration of acriflavin, ampicillin, furazolidone, kanamycin and prefuran
required to control the growth of Vibrio spp. and Pseudomonas spp.
were found to be higher than the recommended limits. Intramuscular inoculation
of bacterial cells of Vibrio spp. and Pseudomonanas spp. into

P. indicus caused mortalities from 30% to
80% but drug treatment with neomycin sulphate (20 μg ml-1 of culture
tank)/ streptomycin (10 μg ml-1 of culture tank) reduced the mortality (0% - 30%). Drug
therapy of P. indicus infected with peritrichous ciliates revealed that
formalin and a flavonoid flavone effectively killed the ciliates whereas methylene
blue was ineffective. The present study revealed that the populations of the
prawn P. indicus suffer from bacterial and epibiont protozoan diseases
reflecting the quality of the environment which is polluted with industrial
effluents and sewage discharge.
 
Date 2014-01-13T10:50:38Z
2014-01-13T10:50:38Z
1999-09
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25602
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.28(3) [September 1999]