Pacific Mackerel, also known as Scomber japonicus, is a species of fish found in the Pacific Ocean. They are characterized by their streamlined bodies and distinctive vertical stripes. These fish are typically silver on the sides with a dark blue-green back, making them well-adapted for life in open waters. This species is known for its high oil content, which gives it a rich flavor and makes it popular in various cuisines. Pacific Mackerel is often caught commercially and is a key part of the diet for many marine predators, including seabirds and larger fish.