The Atlantic Mackerel is certainly the commonest of your ten species from the family which might be caught in British waters. It is extremely common in huge shoals migrating to the Coastline to feed on small fish and prawns over the summer months. The desk is sorted by MERCURY CONCENTRATION https://atlantic-mackerel48454.tinyblogging.com/a-review-of-where-to-buy-mackerel-fish-75499013