Wednesday, March 23, 2011

Spring Break!

4 team members with a Caribbean Reef Shark.  Photo: N. Hammerschlag
My legs were pressed tight against the gunwale (side of the boat) as I balanced and braced myself to pull in the line. Hand over hand, the 40 pound weight slowly came closer and closer to me while the rope tore at my tired rugged hands with every pull. From behind me came the usual words of encouragement from the rest of the very capable team while one of the members coiled the rope as it came onto the deck. The sun beat down on the clear blue water and heated our small boat, turning the sweat and ocean water on my body into a layer of crusty white salt. Heaving the weight onto the deck, I announced that the hook timer was intact. The hook timer is a device used to tell how long a shark has been on the line. When the shark takes the bait and swims away, the timer pops and begins counting. This way when we pull them in, we know how long they have been hooked and use this knowledge to decide a plan of action. If it has been on for over an hour for instance, especially for a hammerhead, we let it go without taking a full set of data.
Diagram of fishing setup
One of the team members jumped in and started reeling in the monofilament while another prepared the next bait to go on the hook. We paused as we noticed that there appeared to be some tension in the line. Curious, we all stopped to watch, hoping for the best. Since nurse sharks live on the bottom, they often take the bait and don't move so we assumed it was just another nurse. As it came closer it became clear from the shape and coloration that it could not possibly be a nurse but we couldn't quite identify it.

With one flick of the tail, the shark bolted and the one reeling it in struggled to stay on two feet. Knowing the shark was one of our biggest, all six of us quickly took action and within seconds we were all standing by: one with a tailrope, another with the cable, someone else to move the weight as needed, another to spot, and two people helping to pull in the shark. These tasks are never assigned but always get done as needed. We had become very good at recognizing what needed to be done and making sure it happened by this point in the trip.

“Definitely a tiger!” the captain called out as the shark neared the surface, still fighting and threatening to pull two of our experienced team members overboard. (Tiger sharks sometimes don't realize they're hooked and thus don't pull enough to pop the hook timer which explains why it was not engaged.) A renewed excitement washed over the crew. I wanted to drop the tailrope to help bring the shark in but there are only so many hands that can pull the line at a time. At long last, the shark was brought alongside the boat, the cable was wrapped around the body and I made quick work to slide the tailrope around the tail. The massive tiger refused to cooperate and she rolled over and over and over while we did our best to hold her in place. My hands were aching while I braced myself in the engine well grasping the aluminum rod that held the rope now attached to the shark's tail.

After a few minutes, she exhausted herself and we were able to start taking data. During this time it was decided that a couple of the girls (one being the videographer) could jump in the water with the shark so they quickly pulled their gear together. My long arms were needed to hold the dorsal fin out of the water enough to take a fin clip. After passing off the tailrope I made a split-second detour to my underwater camera to hand to the other team member in the water before grabbing the medical shears and draping myself over the gunwale in one smooth motion.
Trying to hold the shark. Photo: C. Shepard

Sharks secrete what is called TMAO on their scales and for all intensive purposes we can just consider it to be a mucous layer all over their body. For a reason unknown to me, tiger sharks have a lot of it. The reason I bring this up is that when trying to hold onto a dorsal fin to lift a several hundred pound fish up from the water as much as possible with one hand, operating medical shears in another hand, and holding onto the small piece of fin that is being cut off with yet another hand, things are complicated enough. Throw in a moving boat, raise it about 3ft from the water, and add a whole bunch of slippery TMAO into the mix and the task is rather impossible. Luckily with the help of the girls in the water we were able to take the sample and we were ready to set the shark loose.

Using bolt cutters to cut the hook is rarely a problem when the sharks are on the boat. However, it's another story when it's a 9-ft tiger shark in the water 3ft below the boat's edge with the hook lodged deep into the jaw and the boat is rocking back and forth. The professor wasn't able to cut the hook himself and needed help. Every situation calls for different measures. This time, help came in the form of me needing to scramble up to the port side, tangle myself there in the railing with my legs, dangle over the edge of the boat with my face hardly two feet from the shark's mouth, pull the monofilament taught with one hand, and grab one handle of the bolt cutters with the other to help him cut the hook. Here was yet another task that proved to be a great reminder that I am not a magician. I had to let go of the bolt cutters and monofilament to reposition myself while barely keeping from falling into the water within striking range of the tiger's jagged teeth. I settled myself, pulled the monofilament, and the professor was able to brace the cutters against the outboard side of the boat to cut the hook. A bit jaded, the shark swam slowly away, dipping under the hull and passing to the starboard side as she descended into deeper water. All six of us shared a brief moment of understood excitement, relief, satisfaction, exhaustion, accomplishment, and exhilaration before the feeling turned to the realization that we needed to make a swift hook replacement, set the bait and line, and tend to the 9 other baits in the water that needed to be retrieved.
Tiger shark swimming away.  Photo: F. Graham


Releasing bait. Photo: C. Shepard
Over the course of the 3 fishing days, 33 sharks were pulled up to the boat with a species list including bull, nurse, great hammerhead, lemon, tiger, caribbean reef, and atlantic sharpnose. Most of the catches were much easier to deal with and we handled them like a well-oiled machine. Although living quarters were tight on the 38ft boat, the trip could not have been successful if we had cut back by one person. The story above makes it sound as if I was doing a lot of the work but this is not the case. Everyone else had just as many responsibilities when a shark was on the line and it would be unfair to go without giving them due credit; I'm the least experienced member of the team after all. Anyway, I had many “firsts” during the 5-day trip to the Dry Tortugas and I apologize for not going into detail. If anyone asks, I will provide another story, but until then, here is the list:
Goliath grouper. Photo: D. Lazarre

Going to Key West
Going to the Dry Tortugas
Touching a tiger shark
Touching a caribbean reef shark
Snorkeling with wild dolphins
Catching a goliath grouper (larger than me) on rod and reel
Snorkeling with a nurse shark


Since returning to Miami from break, everything has gone my way. I found out that my cousin Claibourne had her baby, I got an A on my diving midterm which means I'll be one of the 6 to dive in the Florida aquarium in a week and a half, I used my birthday money to buy a new Halcyon backplate and BCD with Apeks regulators, and I scored a free ticket to the 4th round of the Sony Ericsson Open for Monday night through a friend of Rafael (we don't know who will be playing that match yet). Stay tuned and as I said, let me know if you want more detail on the other parts. It's getting late, this post is long enough, and I think sleep is a little more important at this point.

2 comments:

  1. What a sweet adventure!! Also, congratulations on getting to dive at the aquarium! Things seem to be going really well for you lately. That rocks!

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  2. I couldn't think of putting everything in one post so I just had to choose one of the most memorable single stories but yes it was a sweet adventure indeed.
    I'm super excited to dive in the aquarium: I buy into the reward system pretty easily. I could probably go volunteer at any aquarium but the fact that I had to study hard and do well on a test to get into this one makes it much more satisfying.

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