Abstract
Investigations on the incidence of septate gregarines in shrimp have immense importance because of severe pathogenicity of the parasite. The septate gregarines infect the midgut of shrimp Peneaus monodon and severe infection disturbs the intestinal tissues. Mostly gregarines of the genus Nematopsis have been identified from cultured peneaid shrimp. It has worldwide in distribution. In India, gregarine parasites have so far been reported from penaeid shrimps of Bombay and Kerala. The species which was isolated from the midgut of shrimp Peneaus monodon collected from Kharibari area of Sunderbans. 9 out of 20 i.e. 45% of the randomly sampled hosts were found to be infected with a species of the genus Nematopsis. Different developmental stages including trophozoites, sporadins, and gametocysts of the Nematopsis sp. infecting the shrimp have been isolated. No correlations have been established between incidence of infection and environmental parameters.
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Abbreviations
- SD:
-
Standard deviation
- SE:
-
Standard error
- CV (%):
-
Coefficient of curvature
- TL:
-
Total length of the protomerite
- LP:
-
Length of Protomerite
- WP:
-
Width of Protomerite
- WD:
-
Width of Dueteromerite
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Acknowledgments
One of the authors (JC) is thankful to University Grants Commission, New Delhi for financial support to run the project (Project no. F. 32-483/2006 (SR).
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Chakraborti, J., Bandyopadhyay, P.K. First record of a parasitic septate gregarines (Apicomplexa: Sporozoea) in the shrimp Peneaus monodon in Sundarbans of West Bengal. J Parasit Dis 34, 40–43 (2010). https://doi.org/10.1007/s12639-010-0002-7
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DOI: https://doi.org/10.1007/s12639-010-0002-7