Survey Toolbox for Aquatic Animal Diseases is for people working in the aquatic animal diseases and production. The tools presented are valuable for anybody who needs to collect reliable information about aquatic diseases or production. The structure of the book allows it to be used on three different levels. Planners, Trainers and Field Operational Staff. The language used in the book is designed to be easy to understand by people speaking English as a second language. Aquatic animals have provided an important source of food to humans for many thousands of years. First through the capture of wild fish, and later through aquaculture, aquatic animals have played a significant role in the diet of different people all over the world. Traditional fishing and farming systems continue to be used in many developing countries, but recently they have been supplemented by a massive growth in both highly efficient 'industrialised' fishing methods, and a dramatic intensification and commercialisation of aquaculture. Intensive farming systems use higher stocking densities and in some cases a variety of additives, contributing to environmental degradation and an increased risk of disease. The p