Scomber japonicus vs chub mackerel

Scomber japonicus and chub mackerel both are nouns.

Word	Noun	Adjective	Verb	Adverb
Scomber japonicus	Yes	No	No	No
chub mackerel	Yes	No	No	No

As nouns, Scomber japonicus and chub mackerel are synonyms defined as:

Scomber japonicus and chub mackerel: small mackerel found nearly worldwide

Other synonyms of Scomber japonicus include tinker.

Scomber japonicus (noun)	chub mackerel (noun)
small mackerel found nearly worldwide	small mackerel found nearly worldwide