Step,I've seen sharks in the Raritan, it isn't rare, they already caught 2 Thresher's around Breezy Point. I haven't heard much about Raritan since the Stripers have gone. Fluke fishing is tough and as the water gets warmer try Ambrose Channel for the Fluke, the deeper the better. I heard they released a baby whale who was stuck between the pilings in Midland Beach and a pod of Dolphins feeding on Bunker, that's what I heard, true or false, because you know fisherman/fisher-ladies, have to tell their own lies.
Just my lousy 2 cents.
Enjoy
G