The post says 'dumped' from your boat. I'm guessing you don't have time to put on your survival suit. I have been dumped in the water before, and although it was from a small 12 foot boat, I think the principle is the same. You have NO time to grab anything that you are not wearing or that is not attached to you. Number 1 item with you should be a wearable PFD, so you stay afloat. Hopefully, it has a whistle attached, so you can attract attention within 50 yards or so. If you are really lucky, it might have a small signal mirror, so you can 'flash' planes or boats on the horizon. More than that is probably just not gonna happen. I don't know anyone who sport fishes with an EPIRB in their pocket. If your cell phone is waterproof, that would be nice, but mine isn't and would be dead the moment it hit the water.