👉 Black cod is a type of fish that belongs to the family Serranidae. It's also known as a herring or a white cod, and it has been used in various culinary dishes for centuries. In terms of definition: - Black cod is a freshwater fish species native to Europe, North America, and Japan. - It is a small, round-shaped fish with a dark coloration that can range from black to almost white. - The fish's name "black cod"