Oncorhynchus nerka is a type of Pacific salmon that is also commonly known as red salmon, sockeye salmon, or blueback salmon. The different names for this species of salmon often come from their unique physical characteristics or habitats. For example, the name "red salmon" describes the bright red color of their flesh, while "blueback salmon" refers to the blue-green sheen on their backs. Additionally, other synonyms for Oncorhynchus nerka might include "kokanee salmon" or "landlocked salmon," which describe populations of this species that are found in freshwater lakes. Regardless of the name, Oncorhynchus nerka is prized by anglers and seafood lovers alike for its delicious taste and nutritional value.