Both equally mackerel and sardines are healthy, oily fish possibilities with lower mercury levels. Sardines are smaller and customarily have even decrease mercury content as compared to mackerel, making them a superb option for frequent intake. japonicas species along with the Pacific jack mackerel will be the T. symmetricus species. https://gunnerggbzy.aioblogs.com/85135019/mackerels-no-further-a-mystery