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Numbers of Pacific jack mackerel, for example, have increased following marine heat waves, but so far, fisheries have not shifted to catching them, the researchers noted.

In the northern Pacific, for example, the preferred habitat of two commercial species, jack mackerel and canary rockfish, could nearly double in size.

Pacific pompano and jack mackerel used to be scarce off the Northwest Coast.

In June, they caught record numbers of warm-water fish such as Pacific pompano and jack mackerel, a potential salmon predator.

We also ate a lot of rice mixed with jack mackerel, which Mom said was excellent brain food.