Technical Bulletin No. 0482: A Laboratory Study of the Effects of Fine Sediments on Survival of Three Species of Pacific Salmon from Eyed Egg to Fry Emergence

This study involved laboratory trough studies designed to test the biological significance of several different fine sediment particle sizes on incubating salmonid eggs. The literature review indicated a wide range in fine sediment particle size definition used by various investigators and a corresponding wide range in results when the effects of a given increase in fine sediment was expressed in terms of a change in the percent survival from egg deposition to fry emergence. The first of the laboratory trough studies was carried out with eyed rainbow trout eggs which were incubated with a range of fine sediment concentrations from 0 to 40 percent.