Horse Mackerel Trachurus trachurus, commonly known as the Atlantic horse mackerel, is a commercially important pelagic fish found in the eastern Atlantic Ocean and the Mediterranean Sea; it has a slender, silver body with a distinctive line of hard bony scutes along its lateral line and typically grows up to 30–40 cm in length; this fast-swimming species forms large schools in coastal and offshore waters; prized for its firm flesh and moderately rich, slightly oily flavor, it is widely used in Mediterranean, African, and Latin cuisines; naturally high in protein and omega-3 fatty acids, it also provides essential nutrients such as vitamin D, selenium, and vitamin B12; suitable for grilling, frying, baking, or smoking, it adapts well to a variety of cooking methods; commonly available fresh, frozen, or canned, it supports both retail and food service markets; valued for its affordability and nutritional quality, Trachurus trachurus remains a popular seafood choice worldwide.