National Geographic : 1939 Feb
FRESH-WATER DENIZENS OF THE FAR WEST v i~auonal oeograpnlc ooclety raintng by Hashime Murayama BABY SALMON GROW RAPIDLY AFTER RUNNING DOWN TO THE FOOD-FILLED SEA Surviving smolts of all species migrate to salt water after spending from a few months to three years in the rivers or lakes. Feasting on herring, anchovies, and other small fish, or on the abundant small animal organisms of the ocean, they quickly reach adult size. In contrast to the chinook and silver species (Plate VIII), which provide excellent sport when hooked on a troll, the CHUM SALMON (Oncorhynchus keta) is rarely taken by the rod-and-line fisherman. Upon entering fresh water, the male salmon develops a hooked upper jaw.