EUS was first detected in 1971 as Red Spot Disease and since then it is adversely affecting the fisheries economics. The conflicting views of various workers regarding the causative agent of EUS have created confusion rather than providing solution of the problem. It is observed that the scientists are working separately on different aspects of EUS and everybody is trying to prove the aspect of his study as the cause of the disease. The complicated nature of problem requires well-connected and co-operative efforts for this problem. Efforts have been made to develop systems of EUS...

As aqua-culturists are shifting from extensive to super-intensive culture, the stresses would also increase simultaneously. This incremental growth in stress due to anthropogenic activities is likely to reduce the benefits from intensive culture. Thus it seems obligatory to assure minimization in stresses to the extent possible. It has been observed that the aquatic organisms are able to cope up with almost all kind of stresses more or less except xenobiotic stress. However, xenobiotic have been proved rather difficult to cope. This may be due to the alteration caused by...