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Blood Types in Pacific Salmon
Intraspecific differences in erythrocyte antigens (blood types) were shown to occur in four species of Pacific salmon, the sockeye or red salmon (Oncorhynchus nerka), the chinook or king salmon (O. tshawytscha), the chum salmon (O. keta), and the pink salmon (O. gorbuscha). Antisalmon-erythrocyte sera prepared in rabbits and chickens were used after absorption of species-specific antibodies. Some of these blood types were shown to differ in their frequency of occurrence between different geographic races. In addition, isoimmunizations were prepared and at least eight different patterns of antigenic composition were displayed by the cells tested. These results indicate that considerable antigenic diversity exists in salmon. Reagents to detect valuable markers for the investigation of geographic races of salmon should be obtained through further research.
Matthew Ridgway
The greatest American general of the twentieth century wasn't Dwight Eisenhower or George Patton or Douglas MacArthur. The honor, according to New York Times bestselling historian Thomas Fleming, belongs to Matthew Ridgway, who led America's Eighth Army to victory in Korea. Here, in this essay, is his courageous story.
