Mackerel scad's range covers most of the world's oceans. In the western Atlantic, they have been found off Nova Scotia and Bermuda, south to Rio de Janeiro, although they do not seem common in the Gulf of Mexico. In the eastern Atlantic, Mackerel scad have been found off St. Helena, Ascension island, and Cape Verde. They have also been recorded in the Gulf of Guinea, The Azores, and Madeira. In the Indian ocean, Mackerel scad have been found in the Red sea and the Gulf of Aden they are also known from South Africa, the Mascarenes, the Seychelles, and Sri Lanka. In the eastern Pacific, they are known from Revillagigedo Island, the Gulf of California, and the coast of Ecuador. Mackerel scad usually live in sub-tropical seas at depths up to 400 m. They prefer clear water, and are frequently found around islands. Although Mackerel scad have been found at the surface, they are usually caught at depths between 40 and 200 meters. They feed mainly on zooplankton.

Main Nutrients A 125 grams serving of scad mackerel has 328 calories. This portion provides 30 grams of protein and has 24 grams of fat. It has 5.5 g grams of saturated fat, which is less than 1 percent of the daily value (DV) for a 2,000-calorie diet. This serving has 6.9 grams of monounsaturated fat and 9.2 grams of polyunsaturated fat. The cholesterol content is 93 mg. scad mackerel contains 2 grams carbohydrates, 0.7 grams fiber and 0.0 grams sugar.

Vitamins The main vitamin that scad mackerel provides is niacin. This B-vitamin helps your body create energy from the fat, carbohydrates and proteins in the foods that you eat. It also plays a role in proper nerve functioning and blood circulation. A 3-oz. It also provides 31 percent of the DV for vitamin B-6, The trace amounts of vitamins A, C and E in this serving do not contribute significantly to your nutrient intake.