Japanese char is a type of fish belonging to the genus Salvelinus, which includes species like Sakura trout and Iwana. These fish are primarily found in cold, clear freshwater streams and lakes in Japan, where they thrive in the cool temperatures and clean environments. Known for their vibrant colors and delicate flavor, Japanese char is a popular choice in both traditional and modern Japanese cuisine. They are often grilled, served as sashimi, or used in various dishes, showcasing their versatility and appeal in culinary practices across the country.