Sablefish, also known as black cod, is a deep-sea fish found primarily in the North Pacific Ocean. It is known for its rich, buttery flavor and high oil content, making it a popular choice in culinary dishes. Sablefish can grow up to 3 feet long and are typically caught at depths of 1,000 feet or more. This fish is often associated with sustainable fishing practices and is a valuable species for commercial fisheries. Sablefish is rich in omega-3 fatty acids, which are beneficial for heart health. It is commonly used in various cuisines, including Japanese dishes like miso-marinated sablefish.