That is called a sheepshead. They are mainly tight to structure and eat barnacles, crabs, and other crunchy stuff. They are one of my favorite fish to catch. They pull REALLY hard for their size. Within the next month they will be around the Chesapeake bay bridge tunnel where i can paddle to. I cant wait!
If you ever come to the area i can put you on some striper for sure! They are pretty easy to catch almost all year long.