rock bass vs rock sea bass

rock bass and rock sea bass both are nouns.

Word	Noun	Adjective	Verb	Adverb
rock bass	Yes	No	No	No
rock sea bass	Yes	No	No	No

As nouns, rock bass and rock sea bass are synonyms defined as:

Other synonyms of rock bass include Centropristis philadelphica.

rock bass (noun)	rock sea bass (noun)
game and food fish of upper Mississippi and Great Lakes	a kind of sea bass
a kind of sea bass