Alaska cod vs Gadus macrocephalus

Alaska cod and Gadus macrocephalus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Alaska cod	Yes	No	No	No
Gadus macrocephalus	Yes	No	No	No

As nouns, Alaska cod and Gadus macrocephalus are synonyms defined as:

Other synonyms of Alaska cod include Pacific cod.

Alaska cod (noun)	Gadus macrocephalus (noun)
closely related to Atlantic cod	closely related to Atlantic cod