The Flats group has begun running our shuttlebox trials to determine how climate change will affect Bonefish, Yellowfin Mojarra, Schoolmaster Snapper, and Checkered Puffer Fish. For our experiment, we have a shuttlebox, which consists of two circular tanks that are connected by a short swim-through area. For our experiment we are heating one of these tanks and waiting until the fish ‘shuttles’ to the other side. We have run a number of trials on both the Snapper and Mojarra. In some of these trials, we place a Lemon Shark in the unheated tank to play the role of a predator. Unfortunately we haven’t had any excitement; there have been no fish fatalities.

We do other things besides just shuttlebox trials. One day we cleaned the tanks with the Early Learning Center. Andrew and Charlie worked with the kids to clean the Bonefish and Mojarra tanks. The little kids were either really excited or a little bit scared to clean the tanks. Some of them jumped right in the bonefish tank but a few hesitated. In the end, the kids had a good time and the tanks got a good scrubbing, a success on all fronts.

We’ve spent lots of time in the wet lab recently but the other day we went out fly-fishing. This was only half of the research crew; Dale, Andrew, Krissy, and Hayeon, because the rest were on kayak rotations. Dale was the only one of us who had any previous angling experience but Aaron gave the rest of us a quick crash course on fly-fishing. We learned how to cast and single haul. Unfortunately, we didn’t catch anything on this trip. Better luck next time!

On our first day of fieldwork, the team went out to our sites at the Patch Reefs. This was the first research dive for the SMURF team of Fall 2013. As half of the team dived, the other half observed from the surface while snorkeling. This dive was to learn the collection process and really get to know the overall feel of the procedure. It is generally a two or three person process: one person sprays clove oil over the unit to stun the fish, and the other two people move the basket to allow the first person to close the collection bag with our samples. We each were able to try both jobs and the whole experience was very interesting.

After collecting the specimens from two different sites, the team brought the samples in collection bags back to the lab. We sorted the specimens from each collection bag and took data of its length and species. It was really cool for us all to experience the research process from both the field in the water, and also the data aspect in the lab.

On our second research dive, the students got to lead the process and the teachers mostly supervised and advised. The collection was a success and the team found our target post-larval stage reef fish as well as some larger juvenile fishes. We also found some other interesting specimen, such as Mantis Shrimp. We can’t wait to get back in the water next week and see what else we can find!

September 11, 2013: On a Wednesday afternoon, The Flats research group, consisting of Charlie, Dale, Andrew, Cam, Krissy, Haeyeon and Nani went on an exciting expedition to Paige Creek. There, we snorkeled amidst the mangroves with the inwards current and the rising tide, to do an analysis of the species in 50 meter areas. We conducted a rapid ecological assessment (REA) which consisted of taking the pH, salinity, dissolved oxygen, and temperature of the water, at different places in the creek, as well as noting the different type of species that called this area home. Snorkeling along, we came face to face with Yellowtail and Schoolmaster Snappers, juvenile Sergeant Majors, Red, Black, and White Mangroves, Turtle Grass, and many more species of algae, fish, and plants.

After conducting three REA surveys in various sections of the creek, we returned to the “base camp” we set at the mouth of the river. From there, the group split into two with Dale, Cam, Andrew, and Nani staying at the mouth of the river to test their fishing skills and hand catch some Schoolmaster Snappers to bring back to the wetlabs. At the same time Krissy, Haeyeon, and Charlie got onto the boat with Aaron, and went to check out a nearby reef patch. There, it was primarily made of Rose Coral with a lot of Mustard Hill Coral. There were hundreds of Schoolmaster and Yellowtail Snappers, as well as many Sergeant Majors. This awe-striking reef was incredible to see, with all the diversity living in such a small, shallow pocket of the ocean, with no Network Algae growing on it. Back at the mouth of the river, when we returned, nobody had caught any fish, even fishing master Dale hadn’t been able to get anything due to the fact that we were just using lines with a hook. But against all odds, as we were about to leave, Cam caught one Schoolmaster Snapper, and allowed us to go home not totally defeated in the fish catching aspect of our trip.

September 18, 2013: It was 4:20 at low tide and on the count of three, armed with flailing nets and kicking feet, our army of young researchers stampeded through the fish infested flats. Between the open ocean and the mouth of the creek, lay a 100 meter net which would engulf the schools of frightened fish.  Six Lemon Sharks, one giant Bonefish, countless Mojarras and Schoolmaster Snappers were caught in a panicked frenzy as the net trapped them from all sides. Immediately, Nani and Krissy ran to shore to grab some containers as Dale, Hayeon, Cam, Charlie, and Andrew began to sort out the captives one by one. Some of these fish were destined to be brought back to the lab for future experimentation, while others, like the sharks, were tagged and measured before being released back into the ocean. Everyone received a chance to touch, measure, record data, and tag the feisty, juvenile Lemon Sharks, an experience we are sure not to forget.

This field day was dedicated to capturing twenty Mojarras and Schoolmaster Snappers as well as two Lemon Sharks. We needed these fish for our wet lab experiments, which are geared towards studying the effects of climate change on our mangrove inhabitants. Wading around in the water, we could feel the stinging warmth of the shallow salt water and could only imagine how toasty it must feel for our ectothermic friends. The more we get to know about the habitat we are studying, the more we anticipate being able to contribute to their preservation.