1950s
Photographer: Robert Brigham

Fish stocks change regularly, and a species that is abundant one year may be relatively scarce just a few years later.

In the 1950s, when fisheries technician Sam Nickerson posed with this boatload of dogfish aboard the Albatross III, these small sharks were considered trash fish and were thrown overboard by commercial fishermen.

In the 1990s fishermen looking for an alternative to depleted groundfish began targetting dogfish, which they sold on the international market.