The Rainbow Trout (G.A.E. Gall, P.A. Crandell). Economics and Marketing. The Development of Trout Markets and Marketing with Particular Reference to the European Experience (S. Shaw, M. Gabbott). Economics of Commercial Trout Production (S.H. Logan, W.E. Johnston). Poster Abstracts. Chairman's Summary (G.A.E. Gall). Genetics and Breeding. Genetic Variability in Rainbow Trout Populations (W.K. Hershberger). Breeding Plans for Rainbow Trout (T. Gjedrem). Application of Genetic Technologies to Rainbow Trout (G.H. Thorgaard). Poster Abstracts. Husbandry and Management. Feeding Systems for Rainbow Trout and Other Salmonids with Reference to Current Estimates of Energy and Protein Requirements (C.Y. Cho). Rainbow Trout Husbandry: Management of the Stress Response (A.D. Pickering). Broodstock Management, Fecundity, Egg Quality and the Timing of Egg Production in the Rainbow Trout (Oncorhynchus Mykiss)(N. Bromage, J. Jones, C. Randall, M. Thrush, B. Davies, J. Springate, J. Duston, G. Barker). Poster Abstracts. Chairmen's Summary (L.G. Ross, N. Forteath). Nutrition. Nutrition: Estimating Requirements of Rainbow Trout (C.B. Cowey). Protein Nutrition of Rainbow Trout (T. Murai). Pigmentation of Rainbow Trout (T. Storebakken, H.K. No). Poster Abstracts. Physiology and Endocrinology. A Selective Survey of the Endocrine System of the Rainbow Trout (Oncorhynchus Mykiss) with Emphasis on the Hormonal Regulation of Ion Balance (H.A. Bern, S.S. Madsen). Reproduction in Rainbow Trout: Sex Differentiation, Dynamics of Gametogenesis, Biology and Preservation of Gametes (R. Billard). Control of Growth of Rainbow Trout (Oncorhynchus Mykiss) (J.P. Sumpter). Poster Abstracts. Diseases. Poster Abstracts.