Chum salmon, also known as dog salmon, is a type of Pacific salmon. Other synonyms for this fish include keta salmon, silverbrite salmon, and salmon dog. Its scientific name is Oncorhynchus keta. Chum salmon are known for their distinctive spotted pattern, with black spots on a silver or greenish-blue body. They are a popular food fish and are often smoked or canned. Chum salmon can be found in the waters of the North Pacific, from California to Alaska and Russia. While they are not as famous as other types of salmon, chum salmon are an important part of the ecosystem and a valuable food source for humans and wildlife alike.