Abstract
In the present study we report ectoparasite infection in pond-cultured Macrobrachium rosenbergii from southeast coast of Tamilnadu, India. The symptoms included a thick layer of whitish hair covering the entire body, sluggish movement, decrease of food intake and abnormal migration to the pond corners. Laboratorial analysis identified fungi from the genus Chytridiomyces, which have been associated to mortalities during freshwater prawn culture in India.
Highlights
In the present study we report ectoparasite infection in pond-cultured Macrobrachium rosenbergii from southeast coast of Tamilnadu, India
The class Chytridiomycetes was predominant (78%) in the infected animals
It is believed that this chytrid fungus can cause severe injuries to the animal by penetrating into the tissue resulting in high mortality
Summary
In the present study we report ectoparasite infection in pond-cultured Macrobrachium rosenbergii from southeast coast of Tamilnadu, India. Diseased M. rosenbergii (n = 525) were collected in 32 ponds around Chennai area (13o01’ N; 80o16’ E) from June to October 2005. The class Chytridiomycetes was predominant (78%) in the infected animals. Pot-shaped chytrid fungi show branching filamentous mycelium and measure around 45 ± 2 μm (Figure 1B and 1C).
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