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First Report on Infection of Argulus quadristriatus (Arthropoda: Crustacea: Branchiura) on Marine Fish Cobia in Brood Stock Pond Culture

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Title First Report on Infection of Argulus quadristriatus (Arthropoda: Crustacea: Branchiura) on Marine Fish Cobia in Brood Stock Pond Culture
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Creator R. Subburaj
B. A. Venmathi Maran
A. R. T. Arasu
M. Kailasam
S. Elangeshwaran
Prem Kumar
G. Thiagarajan
Krishna Sukumaran
 
Subject Fish louse, Argulid, Brood stock, Lesion
 
Description Abstract A total of 30 specimens of fish cobia Rachycentron canadum (Total Length = 45–120 cm, Weight =
3.0–25 kg) were stocked at the density of 1 kg/m3 in the
polythene lined earthen pond. After 3 months of stocking,
fish cobia was found with infection of ectoparasites. Then
fishes were sampled at fortnight interval to find the percentage distribution of ectoparasites in different parts of the
body for a year and also any pathological symptoms.
Identification of the parasite was made through light and
electron microscopies. The parasite was identified as Argulus quadristriatus Devaraj and Ameer Hamsa, 1977
(Crustacea: Branchiura: Argulidae) commonly called as
fish lice. The maximum distribution of pathogenic argulid
was observed on the head and operculum of cobia and was
found high in summer months from April to June. Pathological symptoms were observed on cobia as erratic
swimming, rubbing against substrate in the pond and
lesions of epithelial tissues on the infected regions. It must
be due to continuous rupturing and feeding of argulids on
the skin of cobia using its powerful antennae. Scanning
electron micrographs revealed some important morphological features of A. quadristriatus. This is a first report of
A. quadristriatus infection on cobia reared in a land-based
pond ecosystem
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Date 2019-11-19T06:55:57Z
2019-11-19T06:55:57Z
2019-05-01
 
Type Research Paper
 
Identifier Not Available
0250-541x
0250-541x
http://krishi.icar.gov.in/jspui/handle/123456789/24912
 
Language English
 
Relation Not Available;
 
Publisher Springer National Academy of Science Letters