NECROSIS OF APPENDAGES

 

SIGNS AND SYMPTOMS

The disease often result after physical damage to the appendages. The affected larvae show browning of exoskeleton and tips of appendages, making them appear eroded and opaque.  

CAUSE

The epibiotic bacteria such as Vibrio spp., Pseudomonas spp., Aeromonas spp., and Flavobacterium spp.  

DIAGNOSIS

Based on gross signs and symptoms and confirmed by isolation and identification of pathogenic bacteria by standard microbiological method.  

PREVENTION

Stock at optimal densities. Maintain good water quality.  

CONTROL

Improve water quality by increased water exchange with good quality water.  
 
 
 
 


 

Copyright 1998 Bioinformatics Centre, National Institute of Oceanography, Dona Paula, Goa, India
 Developed by Devanand Kavlekar