Wednesday a couple of buddies and I were anchored off the end of the PortA south jetty. I was freelining a large piggie off the back of the boat hoping for a king or jack. Line starts running off the rell after a few minutes out. I could tell it was a shark by the way it was fighting. I could also tell it was large by the way it was taking line off my totally cranked down Penn T12. Finally it turned and I could gain some line. Never saw it during the fight except right at the end. It surfaced about 15 yards behind the boat. The distance between the tip of it's dorsal fin and the tip of it's tail was probably 7ft ! The fins weren't too tall, were sickle shaped and light brown in color. As I was looking almost directly into the sun they almost seemed translucent. The weird thing is right after we saw it my line snapped. I was using a heavy mono leader and assumed it was bitten through. To my amazement not only was it not bitten through, my bait was still alive and kicking! I was basically playing tug-of-war for 30 minutes! So any guesses what it was? For bragging puposes I want to say Tiger, but I'm kind of thinking Nurse.....
I would think that a porpoise would be stronger than a large shark of the same size. Dolphins just look like they would have more torque, so to speak. They way you talk of it just ripping your line, makes we wonder. A large shark would've cut the line, or at least taken your bait. Dolphins like to play.
Wasn't ripping line, just that slow methodical pull that you can't stop. Definitely not a dolphin, color not right and tail motion back and forth not up and down. Plus, I've seen and caught lots of sharks, but generally black tips or bulls, and played around with duskies offshore. Just trying to figure out what this one might have been as it wasn't close enough to get a positive ID.
I hooked a big ray that acted the same way once. Started peeling line at a steady pace but not fast. I couldn't turn his head and then suddenly after about 120 yards he just dropped it. Still had my bait.