CONTENTS 



PAGE 



Introduction 1 



The fish and the fisheries 2 



Pacific salmon 2 



Coastal groundfish 2 



Salmon in the ocean 4 



Distribution and environment 4 



Chemistry of the ocean 9 



Biological productivity 10 



Management of salinon stocks 10 



Forecasts of sockeye salmon runs 11 



Effects of fishing 11 



Fisheries in miniature 13 



Ocean growth and mortality 13 



Physiology of maturation 14 



Identification of ages and stocks 14 



Salmon in inland waters 17 



The changing environment 17 



Thermal pollution — a developing problem 17 



Water quality sui'vey 18 



Thermal enrichment 19 



Migrations of adult fish 19 



Response to temperature 19 



Attracting fish 20 



Tracing movements of salmon 22 



PAGE 

 Salmon in inland waters — Continued 



Migrations of juvenile fish 24 



Timing and rates of migration 25 



Survival of migrants 25 



Temperature laboratory 26 



Turbine studies 27 



Deflection of migrating fingerlings 29 



Fish "taxis" 30 



Gas bubble disease 31 



Fish behavior 31 



Groundfish of the Continental Shelf 33 



Abundance and distribution of Pacific hake 34 



Management of groundfish stocks 35 



Age analysis and genetics 35 



Growth and mortality 36 



Floating aquaculture laboratory 36 



Down to the fishes' world 37 



Biometrics Institute 38 



Publications — 1966-68 39 



Staff" 45 



