👉 In the context of marine biology and fisheries management, "mackerel" refers to a species of fish that is commonly found in coastal waters. Mackerels are known for their high protein content, which makes them a popular source of protein for many people. Mackerel are typically caught from sea bottom or by fishing nets, but they can also be caught from the surface of water. They are often harvested in groups and then transported to ports where they are sold as a byproduct of the