Sablefish, also known as black cod, is a deep-sea fish found in the North Pacific Ocean. It is known for its rich, buttery flavor and high oil content, making it a popular choice in gourmet cooking. Sablefish typically has a dark, silvery skin and can grow up to 3 feet long. This fish is often harvested using longline fishing methods and is considered a sustainable seafood option. Sablefish is rich in omega-3 fatty acids, which are beneficial for heart health. It is commonly used in dishes like miso-marinated sablefish and is prized for its flaky texture when cooked.