According to the Massachusetts Wildlife website:
"The five species caught [in a local reservoir] most often were:
Lake trout (6,200)
Aunfish (5400)
Yellow perch (4,400)
Smallmouth bass (3,600)
Largemouth bass (2200)"
Trout I know, and perch, and yes, bass, too; but what is an aunfish? I google-searched and things but found nothing.