Sharks, S’mores, and Sleepovers

Friday, October 14th 2011 – Saturday, October 15th 2011

With the sun shining and calm seas the group from Our Lady of Lourdes Academy (OLLA) and the RJD team set out from Key Largo. Everyone enjoyed a peaceful ride, and some even a nap on the way out to University of Miami’s new station at Broad Key. Spirits and hopes were high for RJD’s second sharking trip at the Broad Key Research station. The first expedition down to Broad Key was during the first week of August and, if not mistaken, brought lemon sharks, bull sharks, and even a great hammerhead!

Today, the day would prove to be not as lucky. The first round of 10 drumlines did not provide us with a shark, but the ladies and team were not deterred. Shark cheers were done and the students and interns sang to encourage the sharks’ cooperation, and finally on the sixth line of the second round a nurse shark was brought to the boat. Measurements, a fin clip, and blood samples were taken quickly and our first shark swam off in great condition with a new tag! The weather slowly changed throughout the day and dark clouds in the distance threatened us with rain. Luckily the rain held off until late at night and we were able to tag and take samples from one more nurse shark from our remaining 14 lines.

Back on Broad Key we got time to relax and were treated with a beautiful sunset and a bonus of two lemon sharks caught right off the dock. Both sharks received spaghetti tags, were sampled, measured, and released in great condition. Burgers and s’mores were roasted and the day was put to rest.

The AP Environmental class from Our Lady of Lourdes, Capt. Curt, and RJD intern Virginia, and oh yea,…a beautiful lemon shark; all smiles. Click to enlarge.

The second day we got an earlier start and everyone was excited for a great day on the boat. Unfortunately a front had moved in over night and we were dealt a cold and very windy day. Despite the conditions, the girls from OLLA were very spirited, singing to the sharks. Not a single hook made it into the water without a kiss for good luck. Despite the best efforts of the RJD team and the OLLA ladies, the second ever strikeout for the RJD program was recorded; we caught nothing. Interesting to note, the first strike out occurred on an equally windy and rainy day. Seems as if sharks tend to get a little lockjaw on days when the weather is not the best. Comparing the sample sizes across different weather conditions would be an interesting analysis. In the words of our director, Dr. Neil Hammerschlag, with shark populations declining quite rapidly, we should feel lucky every time we see a shark at all. The lack of sharks that were caught on the trip just goes to remind us how lucky we are to work with the animals we do (when we do), and how important the research and conservation work that we do is.

Even without many sharks being caught and uncooperative weather, I think it would be safe to say that everyone on the trip had a great time. The AP Environmental class that joined us out on Broad Key was able to learn not only about sharks, and the research we do with them, but they had a chance to do real fieldwork in the mangroves and seagrass beds as well. We would like to thank everyone from Our Lady of Lourdes Academy for coming out with RJD to tag sharks and for their great enthusiasm and cooperation.

Till next time, keep spreading the shark love!

Evan Byrnes, RJ Dunlap Intern

Wide Spread Support

Sunday, Sept. 28th 2011

I arrived back to school from summer break with new and past students inquiring when we would be having a shark-tagging trip.  Sunday marked the first trip of the season for Palmer Trinity School.  I had an overwhelming response and was yet again reminded how much impact the program is has on our youth.  In addition to the PTS students and UM interns, we were joined by Sergio Akselrad, his 11 year old son Josh Fogel, Rodney Bell, and his 8 year old daughter Reese.  They won the trip in an auction from the South Florida Urban Ministries.  The money from the auction was used to help fund their summer camp.

Alejandro from Palmer Trinity deploying a drumline. Click to enlarge.

Josh Fogel touches the tail of a nurse shark. Click to enlarge.

The boat left out of Key Largo, which is a new location for many of us and was in fact the first time most of the team had been out on that particular boat.  In addition, we were sampling new sites; much of the day was filled with mystery and excitement.  Unfortunately, the weather was not in our favor; it rained on and off throughout the day.

By the end of the day the team was able to catch 4 nurse sharks.  Measurements and behavioral data, as well as a fin clip and blood sample were only collected from 2 of them.  In addition, the sharks were tagged with red dart tags, courtesy of Oracle, which has supported our research for over two years, enabling us to tag sharks in the Bahamas and Hawai’i. Oracle represents a variety of industries, mainly information technologies, in more than 145 countries around the globe.

Beyond collecting data from the sharks, water samples were collected and tested throughout the day.  Water can serve as a vehicle for diseases in the environment.  It should be protected from contamination so that it can sustain healthy ecosystems.  Once water is contaminated, however, a considerable effort is necessary to identify the sources of pollution and to ultimately remove or remediate these sources.  The objective of the water sampling research is to document the quality of water off the coast of Key Largo and to examine spatial and temporal fluctuations, in an effort to identify potential sources of contamination. To assist researchers in shark studies, water researchers will examine samples of blood and tissue, removed from tagged sharks, in order to see if similar contaminants or pathogens are making their way from the environment into the shark’s bodies. Our preliminary results showed that there are detectable values of a fecal indicator (enterococci) located along the shore of the dive shop that we departed from. We also found high values of another contaminant in the water offshore as well as in the shark’s blood. Further analysis will help us determine what this unidentified pathogen is.

Until next time, help save our oceans in any way that you can and remember that knowledge is power.

Leann Winn

PTS Outdoor Education Coordinator, PTS Science Faculty, and Life Long Shark Team Member

How Lucky Are We…

Saturday, Sept. 24th 2011

One of my favorite things in life is my involvement with the RJ Dunlap Program, if not my absolute favorite thing. I just moved back from California a few weeks ago and I was absolutely itching to get back on the water with my shark-loving team. Come Saturday’s conclusion all I can say is that the love was only reinstated.

The day’s trip was unusual in that we didn’t have students on the boat, but rather a group representing Inktel, donors to the program. However, two of the members brought some young’uns along.

Working for the past several months with children and young adults, I’ve realized how amazing an opportunity it is to be able to have a place in young people’s lives. Even if only for a day you can offer them something new, provide a different way to look at something, you hold the opportunity to initiate a change/flick a switch, and I think that’s a big part of what we do at RJD. It’s about science of course, but it’s also about sharing that science with more and more people and getting people excited about the ocean, so they’ll want to protect it and actually care about the science.

Isabella and Ben, the two 6th graders on board were already happy to be with us, so it didn’t take too much convincing to get them involved. Isabella was set on studying marine science one day and wants to be on the Discovery channel… though I told her we might be competing for that spot. She had her hands in the bait box stuffing the chum crates before we could stop her.

And then there was Ben. Ben is an example of my favorite case of child on the water. He was quiet at first, didn’t want to even think about touching the bait and had never been snorkeling. Not only did Ben get to go on his first snorkel, but he got to do it with several of the seven nurse sharks we tagged that day. I was so happy for him, so proud. The look on his face by the end of the day hardly resembled the child that stepped aboard that morning.

Ben and Isabella taking charge of the chum crates. I got to hold the camera instead. 😉 Click to enlarge.

And this was just the kids. You should have seen the faces of the adults!! They couldn’t stop saying how cool it was, and they’re right. Sharks are really really cool, and it is just absolutely AWESOME to be able to share the experience of trying to protect them through our research.

Though we may not have gotten a wide variety of species, we got people excited about the two species we did see (we caught two Caribbean reef sharks in addition to the nurse sharks), which is the first step in raising awareness for these amazing creatures. So get pumped everyone, this is the beginning of a great new season.

RJD Inktel Sequence_2

Extremely lucky,

Virginia, RJD Intern

Neat ‘n Tidy

Friday, July 22nd 2011

Spirits were high today after the huge success of the day prior. The fantastic Reef Dogs of South Broward High School joined the RJ Dunlap team today and after all the introductions, everyone on board put one fist on either side of their head sending out positive vibes in hopes of catching a great hammerhead.

Once out to our site in the lovely Florida Bay, we embraced the perfect sharking conditions and put out our first ten lines of the day. One hour later we pulled in ten sharkless hooks. Despite the slow start everyone on board remained optimistic. For our next set of lines, we (and by “we” I mean the Reef Dogs) did everything imaginable to ensure we catch some sharks. This group refused to go back empty handed; the baited hooks were kissed, then kissed again, and even licked!

Our first catch of the day was a small black tip. Everyone moved like a well oiled machine every step of the way. As quickly as we pulled the shark in, we collected our data and let it go. We pulled in one more shark on our second set: a large nurse shark, which we decided not to bring on the boat, so we took a size estimate and set it free. Nonetheless all the Reef Dogs did their part, and we continued to pull in the rest of our second set.

First catch of the day, a nice manageable blacktip. Click to enlarge.

By this time the rain clouds, which had been lingering by the horizon, started to make their way towards our boat. We ended our trip with one feisty nurse shark. This one was brought on the boat and everyone worked seamlessly to collect our data and get the shark back in the water. The last of our lines were pulled in just as the rain was starting to pick up.

All hands on deck! The team keeps a feisty nurse shark under control. Click to enlarge.

Although it was a pretty slow day, we had a fantastic team working with us. And, as Austin reminded us, even if we don’t catch many sharks we are still learning about shark population size and their movements. Even no data is data, and we are reminded why we are out here in the first place.

‘Till next time….

Stacy Assael, RJD Intern

Mid-Week Surprise

Wednesday, July 13th 2011

Driving down to the keys on a Wednesday morning was strange. Normally the long single road through the Florida Keys is quiet; the only signs of life are the fishermen on their way to their boats. On our drive down on Wednesday morning however, the road was bursting with people driving to their places of work; I doubt none of which were as exciting as ours!

Even at 8:30 am the temperature down in Islamorada was already in the high 90’s, which made loading the drumlines and other gear onto the boat a hot, sweaty task. Luckily, the wind out at sea made the heat more bearable for the remainder of the day. We had the pleasure of having a group from Santa Monica High School in California join us on our trip. The kids that had traveled all the way from California to come on this trip were all very excited and couldn’t wait to see their first shark! Unfortunately, even with all the sharky vibes, our first 10 lines at the reef yielded nothing. Fortunately, just as the moral of the group was turning for the worse, round two brought us a beautiful 301cm hammerhead on the first line!

Great hammerhead ready for business! Click to enlarge.

This male was named Siorcan from the word Siorc, which is Gaelic for shark, in appreciation of the donation to RJD by Goldman Sachs. After attaching a satellite tag, and performing the other necessary tasks, we released Siorcan and followed him for a couple of minutes while he cruised along the surface. What an amazing experience!

Siorcan showing off his newly acquired satellite tag to all those on board. Click to enlarge.

On line five we picked up a large amberjack, which somehow managed to swallow the large barracuda head baited on the line. Wild. Later on in the day we reeled in another gorgeous hammerhead. This one was a bit smaller than the previous shark, at 270 cm. The female was named Laura in honor of Laura Bracken (RJD science and education specialist) and Laura Rock (devoted RJD intern for over 4 years). After fitting her dorsal fin with a satellite tag, and giving the students time to touch the shark, Laura was released in great condition. On the next line we found a 160 cm goliath grouper on the hook. Captain Curt successfully managed to release some air from its swollen air bladder and push it back below the surface in the hopes it was able to swim back to the depths to live another day.

Grouper with the caring hands of Capitan Curt. Click to enlarge.

The only other sharky excitement for the day was an 110 cm blacknose. The blacknose was measured, biopsied, tagged with both roto and spaghetti tags, and blood sampled. The group from Santa Monica High School was able to get a great photo-op with the blacknose before it was released in great condition.

Group shot of Josh Levy, RJD intern, and the Santa Monica High School group. Click to enlarge.

Although it was a relatively slow day, it was my first trip of the summer so it was great to be back on the water with the RJD crew.

In the hopes of tagging more sharks next time!

Josh Levy, RJD Intern

 

‘Nother Nurse-tastic Day with a Surprise Visitor

Saturday, June 25th 2011

Saturday was another perfect day for sharking, and when there’s good weather and flat seas, the team usually heads out to the reef!  So that we did. Since our reef site is more out in the open ocean, we take every chance we get to go out there since the weather can most times be uncooperative.  Today we welcomed the staff and faculty of Miami-Dade College to come along on the day’s opportunity.

The Fabulous Faculty and Staff of Miami Dade College who joined us on our trip. Click to enlarge.

We have been working in partnership with Miami-Dade College to help satellite tag our larger friends (bulls, hammerheads, and tigers).  They have been extremely supportive of RJD and have graciously sponsored several of our sharks.  We are very happy to have this relationship with them as our circle of shark friends expands!  This time we luckily had the faculty and staff out to do a “checkout” expedition; you know the kind to make sure everyone has a good time and that money is being well spent (we know, but sometimes the people who sit behind a desk all day don’t).

After a few bumps on the way out, we made it to our site and dropped drumlines baited with fresh delicious tuna and jack steaks into the water.  I mean this bait looked so good, I would definitely take a bite had it been offered to me!

After eating what seemed to be a very short lunch, we sped over to pickup our drumlines.  I must say that I was very impressed at the group’s level of involvement.  Everyone definitely pulled his or her own weight on this trip and no one wimped out! The first line we pulled in was a very feisty nurse shark.

Faculty and Staff of Miami-Dade College help to secure the nurse shark for tagging. Click to enlarge.

After calming him down, everyone grabbed hold and we quickly worked to tag the shark while Austin hopped in the water to take a quick blood sample (a new method which works very smoothly and we don’t even have to take the animal out of the water).

Intern and graduate student, Austin, takes blood from the nurse shark while in the water. Click to enlarge.

Two lines later we pulled up another large nurse and repeated the tasks methodically.  Throughout the day we picked up two more nurse sharks, tagged, and released them as well.  The biggest surprise came at the end of the day when we finally caught a Caribbean reef shark! This was a first time for us in Islamorada and it was very exciting indeed…except for the part when the shark managed to slip the hook and swim off before we could get it onboard to tag.  It was a large beauty – estimated at about 7 feet. At least we know they are here and hopefully we’ll get her next time!

Until that next time stay sharky, Florida,

Laura E. Rock

 

“Boulevard of Broken Dreams”

Wednesday, June 22nd 2011

A slew of late-June trips saw our team returning to the biologically rich waters of Florida’s Gulf Coast (near Ft. Myers) for a 3-day research trip with Florida Gulf Coast University. You may remember from previous entries that our sampling trips in Ft. Myers are generally quite high-octane, usually involving the satellite tagging of several tiger, hammerhead, and bull sharks, as well as sampling from some pretty feisty blacktips. Our last trip to Ft. Myers broke that streak unfortunately, crushing our high hopes and leaving a bad taste in our mouths. This blog earns its name from Green Day’s 2004 hit song….in fact, stop reading for a second, open your iTunes or Youtube and listen to “Boulevard of Broken Dreams” while you read. This way, you can live vicariously though a couple of tough days of research.

Captain Curt dreaming of the elusive cookie-cutter shark. Click to enlarge.

Anticipations were high as a local television crew seeking to document some of the shark research and satellite-tagging program joined our team. The drumlines went in as usual, an hour later the lines were pulled up, and baits were still present. This trend became the norm for most of our trip in Fort Myers. Where had all the sharks gone? Every ten or so we were greeted by a nurse shark, each of which were promptly worked on—measured, biopsied, blood sampled, conventionally tagged, and released.

A nurse shark waits comfortably as she the RJD team does their job. Click to enlarge.

Luckily, we were able to sample a few blacktip sharks, and even put a satellite tag on a bull shark, which is always a great accomplishment for the ongoing conservation research. But where had all of the larger coastal species gone? Where were the sub-adult tigers we had grown accustomed to at this site? And the elegant hammerheads? The presence of several small blacknose and Atlantic sharpnose sharks on our baits would suggest that the big boys were indeed “out of town.” While these species are not as “romantic” as others we tag, this was a pretty neat observation. It’s always cool when you can see ecology unraveled before your eyes, especially when you can observe the important ecological role of predators such as sharks.

While we missed the sharks during this small window, there is always the chance to research them another day. Where did the big sharks go? While its tough to say exactly, the path back to their home range in Ft. Myers is a undoubtedly a tough one filled with risks….but we are still dreaming of their return.

Another chat at the water-cooler, Neil and the nurse. Click to enlarge.

In hopes of being there when they do,

Austin Gallagher

Big Sharks + Great Group = RJD Love

Friday, June 24th 2011

This Friday we went to our outer reef site with an enthusiastic group from the Miami Science Museum’s Impact Program, which was great because the lines at the reef are twice as long and the more help pulling in the lines the better.

Miami Museum of Science’s Impact Program raise their shark fins as a good omen. Click to enlarge.

The last few trips have been a bit slow, so we were hoping for some big sharks and lots of them – and we weren’t disappointed!  Our first catch of the day was a seven-foot nurse shark, and then we pulled in a seven and a half foot lemon shark. After pulling the shark aboard, our volunteers for the day did a great job measuring the shark and getting samples.

RJD shark catching sensei, Dominique Lazarre, pulls in a nurse shark. Click to enlarge.

We definitely had a lot of sharky mojo going on, because the next shark we pulled in was an eight-foot bull shark.  Since these sharks are more threatened than other sharks in the area, we attached a satellite tag to him so that we will be able to follow his movements.

Volunteers and interns hard at work with a mother-ship of a bull shark. Click to enlarge.

The last shark of the day was a twelve-foot great hammerhead, which is the largest hammerhead species.  These sharks are classified as endangered by the International Union for Conservation of Nature because they’re targeted for their fins and are often bycatch in commercial fisheries.  Unfortunately, this shark was exceptionally feisty so we weren’t able to put a satellite tag on him.

Unsuccessful at tagging, but successful just by being in the midst of such a beautiful creature. Great hammerhead. Click to enlarge.

Catching large sharks is a sign that the area is very productive; unfortunately we only caught a few sharks – a further sign of decreasing populations.

Piper Wallingford, RJD Intern

(Photos by Christine Shepard)

Just Another Day Sharkin’

Saturday, June 18th 2011

The first set of the summer trips had arrived and it felt way too long since the last time we were out doing shark research! The day was picture perfect at Keys Marine Lab and we were able to bring out a group from Deering Estates and also some new interns, aka “newbies,” to join in our adventure for the day.  After everyone had settled in and instructions were given, it was off to Everglades National Park to set the drumlines in the water. To increase our chances, we made each of the students putting in a drumline kiss the bait for an extra bit of good luck. At first they were a bit skeptical, but got the hang of our superstitions rather quickly!

Student from Deering Estates lays a fat one on the bait for an extra pinch of good luck. Click to enlarge.

After putting the drumlines in quite fast, the infamous “10 drumlines in the water” phrase was yelled and it was now off to rest and relax before the hard work began. Getting ready for the first set there was excitement building in the air. “Did kissing all our bait really bring us more luck?” As the first line of the day was being brought in, we were about to find out. There was tension right away as the line was spooled in and beheld at the end was a nice female blacktip, approximately 158 cm long. Starting off on such a high note, the students and the “newbies” buzzed while bringing in the other nine drumlines. Unfortunately, there were no other sharks on our lines for the rest of the first set. Would the second set bring us more sharks? Hopefully.

Just like in the first set, one shark was caught on the second set. It was a female lemon shark whose total length was 208 cm. Along our second shark of the day, we were also able to bring up a ghost crab trap that had gotten tangled in our line. Covered with tunicates and sponges, the students had a chance to look and explore makeshift habitats for other marine organisms.

Interns pull up a ghost crab trap, a forgotten or lost trap left in the ocean. Ghost traps can be hurtful to the environment when tousled or dragged by strong weather or boats, but may also provide a makeshift habitat for sessile and aggregative animals, like those shown encrusted on the trap in the picture above. Click to enlarge.

Finishing up our second set and including our third, we did not have the chance to bring up any sharks. However, on our fourth and final set, we were able to get two more – a female blacktip, around 148 cm, and a male lemon shark that was a total length of 204 cm. The male lemon was deemed to be a bit more special than all the others due to the fact that he was a recapture that had been at large in the water for 813 days! The area we were in, allowing us to resurvey him, was also within the general area in which we first tagged him in March of 2009. When the lemon was first tagged, it was around 186 cm and grew 18 cm over the course of the time he was at large (almost 2 years). The original roto tag on the dorsal fin was missing, but a mark in the fin was still present where it had once been placed. Although the dart tag in the musculature at the base of the dorsal fin was still present, it was removed and replaced with a new one. Our recapture rate is only about 2%, if that, so we were ecstatic to get this male lemon and find him in such great condition, with no signs of damage from the initial set of tags, nor from today’s, and send him off on his way again.

Bye bye lemon, until next time! Interns release a healthy recaptured male lemon shark after being resurveyed. Click to enlarge.

All in all there were a total of four sharks caught, with one being a recapture. It was great to get on the water again and also good to have a new group of interns and students joining the experience. Hopefully this great start of a weekend will lead a summer full of awesome trips and good times just like it!

Elasmobranch love,

Julia Lampe (RJD Shark Intern)

 

 

Goldfish Crackers Don’t Make Good Shark Bait

Friday, June 17th 2011

Summer sharking season has finally begun! With calm seas, a bright blue sky, and a good group, the RJD team was destined for a good time. It was the first excursion for two of our new interns, Stacey and Evan, as well as for the group of energetic home-schoolers and their parents from a Deering Estate educational program.  The team left the dock from the Keys Marine Laboratory and headed out to Hawks Channel in hopes of catching and tagging a variety of sharks. One of the students aboard, coincidently fashioned with my great name (Andrew), was supplied with “lucky” goldfish crackers to lure sharks to the boat… we hoped his plan would succeed.

Despite the beautiful conditions, the bite was slow and we were only able to convince three nurse sharks to eat our fresh bait. Although everyone has their own opinions about nurse sharks, they are the ideal sharks to teach new interns the sampling process. The first nurse shark was only a total length of 120 cm and provided a great first shark for the team and students to work with. The next two nurse sharks were 244 cm and 229 cm and each had the honor of having a swim date with Captain Curt as he handled the sharks from within the water.

Although the sharking was slow, you can never complain about a day on the water—especially with a great group of people truly pumped up about shark conservation!

Tight Lines,

Andrew Cox