silver perch vs Morone americana

silver perch and Morone americana both are nouns.

Word	Noun	Adjective	Verb	Adverb
silver perch	Yes	No	No	No
Morone americana	Yes	No	No	No

As nouns, silver perch and Morone americana are synonyms defined as:

silver perch and Morone americana: small silvery food and game fish of eastern United States streams

Other synonyms of silver perch include white perch.

silver perch (noun)	Morone americana (noun)
small silvery food and game fish of eastern United States streams	small silvery food and game fish of eastern United States streams
small silvery drumfish often mistaken for white perch; found along coasts of United States from New York to Mexico