Salmonidae is a family of fish that includes species such as salmon, trout, and char. These fish are primarily found in freshwater and saltwater environments across the Northern Hemisphere. They are known for their importance in both ecosystems and human economies, often being sought after for sport fishing and culinary purposes. Members of the Salmonidae family are characterized by their streamlined bodies and a unique life cycle that typically involves migrating from freshwater to the ocean and back. They are also recognized for their rich nutritional value, particularly high levels of omega-3 fatty acids, making them a popular choice for healthy diets.