Mackerel; Spanish (Scomberomorus maculatus)

A misleading name, as this fish inhabits the eastern seaboard of North America, and related species live in the waters of South-East Asia, where it"s popular in curries and stir-fries.

This is a slightly larger fish than the Mackerel living around our shores, but looks similar and if found on your fishmongers slab, should be treated in the same manner.