Pacific mackerel is a good source of riboflavin and vitamin B6, and a very good source of protein, niacin, vitamin B12, selenium, and omega-3 fatty acids.Pacific mackerel grow fast, up to 25 inches and more than 6 pounds. They can live up to 18 years but are able to reproduce by age 4, and sometimes as early as age 1.
They spawn at different times of the year, depending on where they live.
They spawn several times a year, releasing batches of almost 70,000 eggs each time. The eggs usually hatch within 4 to 5 days. Pacific mackerel feed on plankton (tiny floating plants and animals) and the younger stages of all the pelagic species such as anchovies and sardines, as well as their own young.
Various larger fish (such as sharks and tunas), marine mammals, and seabirds eat Pacific mackerel.