It depends on how long you let that crud stay on your hands or whatever. After a day of bluefishing, I take a long, hot shower and figure on sleeping alone that night. d8-)
It can be worse. If the blues are puking as they come over the side (common when you're chumming them), or if you're gutting them on the fly to keep the flesh as good as it can be (I do), the puke and guts will harden into something like polyester boat resin. The guts will also strip varnish. I've actually had to use a chisel to get that stuff off of a boat's gunwales.
I haven't tried stripping outdoors. There's a retirement home behind my house and the old ladies are already kind of frisky.
You are typical of bluefishermen everywhere -- at least, those who don't know the secrets to making it one of the best eating fish around.
I've eaten blues I caught at Key Colony Beach, from the pier. They were just like the ones we catch up north. But you have to know how to handle them or they're awful. I can't even stand the smell of them in a restaurant.
I've completely turned my neighbors around on eating bluefish. Now they ask when I'm going fishing again.