Gasterosteidae vs fish family

Gasterosteidae and fish family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gasterosteidae	Yes	No	No	No
fish family	Yes	No	No	No

As nouns, fish family is a hypernym of Gasterosteidae; that is, fish family is a word with a broader meaning than Gasterosteidae:

Gasterosteidae (noun)	fish family (noun)
sticklebacks	any of various families of fish