Introduction

ACKNOWLEDGMENTS

Many thanks to Dr. Robert B. Moeller, DVM (Armed Forces Institute of Pathology -Washington, D. C.), for his kind permission to provide an abstract of his work "Diseases Of Fish" to DBWS. The whole lecture can be read in the Aquaria-Vet section of AquaWorld Magazine.

Many thanks to friend Dr. Dionigi Maladorno for his very precious contribute, help and collaboration