A senior scientist at Nanaimo's Pacific Biological Station, Margolis has studied salmon for 35 years. In 1955 Margolis discovered that salmon ventured beyond the Continental Shelf and later helped develop a means of identifying salmon's home rivers. With Department of Fisheries ethologist Cornelis Groot he brought together most of the available information about the seven species of Pacific salmon in Pacific Salmon: Life Histories.

[BCBW 1992]