Кета, or Oncorhynchus keta, is a species of salmon found in the North Pacific Ocean. It is commonly known as chum salmon and is recognized for its distinctive greenish-blue back and silver sides. Keta salmon are anadromous, meaning they are born in freshwater, migrate to the ocean, and return to freshwater to spawn. This fish is an important part of the ecosystem and is also significant for commercial fishing. Keta salmon are often used in various culinary dishes, including sushi and smoked preparations. Their roe, or eggs, is highly valued and is often used in gourmet cuisine.