In English, French and Spanish. Parallel title (1) Rapports des pays et communications prâsentâs á. Parallel title (2) Informes nacionales y trabajos presentados en la

With correction slip

This document deals with the problems of fish culture, particularly carp, in eastern Europe. It reviews the types, methodology and role of fish culture and the economic analysis of this activity. It shows that there is no universal method for economic analysis of fish culture, especially if it has to be used for comparing economic efficiency of fish farming activities, and presents a general simplified outline of feasible economic analysis.

The basic principles of fish transport and the main factors affecting it (fish species, fish developmental stages and quality, transport time, temperature, oxygen content, fish metabolism products, etc.) are evaluated on the basis of an analysis of the pertinent literature. For the two basic fish transport systems, the closed and the open ones, the transport units are described and the densities of transported fish per unit volume under actual conditions are tabulated for guidance. The survey is complemented by the description of the existing methods for the chemical treatment of the environment inside the transport systems and for the treatment of the fish transported, such as fish anaesthetics, chemical water conditioning and antibacterial treatment.