Learning a New Craft and Experiencing the Keys: Week Two in Biscayne National Park 

The national parks have always captivated me. How could they not? The inspirational views, the wildness, the vastness they never fail to mesmerize. Beyond their charismatic looks, the parks represent something special to the American people and the rest of the world. Their establishment and continued protection stem from the embodiment of an idea the idea that our country, especially its natural, historical, and cultural resources, belongs to each and every one of us. The national parks and monuments exist because American citizens before us believed in the unlimited value of natural places and were committed to preserving them “for the enjoyment, education, and inspiration of this and future generations” (National Park Service, 2021). 

To fulfill the mission of the National Park Service (NPS) requires an incomprehensible amount of organization, communication, collaboration, and plain ol’ get-your-hands-dirty work. As necessary as it is for me to shed light on the underwater research being conducted throughout the parks, I believe it’s equally important to acknowledge the countless individuals who serve as stewards for the NPS, working day in and day out to care for the resources on NPS lands and educate others about their significance. For every day of my internship, I’ve been lucky to work with NPS employees and collaborators who carry this responsibility with grace, assiduity, and enthusiasm. They are driven beyond belief and true motivators. As I start another week of my internship, my motivation and enthusiasm for serving the greater mission of the NPS only grow. 

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Now that the women’s Wounded Veterans In Parks (WVIP) project has ended, I’m heading back to Homestead, FL with Annie and Susanna. We’re continuing work in Biscayne National Park, but this week Annie and Susanna will shift back to SRC archeological projects, and I’ll jump in with the park’s natural resources team. After a fairly easy drive, free from too much Florida Keys traffic, we arrive at our Airbnb. The rest of the SRC team is here, and two archeologists from the NPS’s Southeast Archeological Center (SEAC). I’m eager to spend a week with this crew, as I’ve only talked to most of the SRC folks in passing at the Denver office. 

To everyone’s delight, the next day is a day off for the entire team. I’m certainly looking forward to buckling down with my laptop and getting caught up on a long list of logistical and administrative to-do’s. Before I get too sucked into my list, Brett offers to talk through his preferred workflow for importing, organizing, and editing photos in Adobe Lightroom (Adobe’s complex photo editing program). I’ve been hoping for this! I quickly accept. Lightroom overwhelms me, and the idea of weeding through 400 photos from last week’s WVIP project seems especially daunting (turns out, 400 photos are nothing for a weeklong project). 

Brett and I sit at the computer desk with my SD card from last week’s project and jump into the nitty-gritty. Susanna sneaks in as well and joins the conversation. In the span of three hours, the SRC photography power duo gives me a comprehensive lesson on how to organize photo libraries, edit images, and most importantly, how to tell stories in an underwater environment. Brett points out certain things about the composition, framing, and lighting of my photos that could turn an okay shot into an eye-catching, compelling image. I try to play it cool as he and Susanna compliment some of my photos in the mix. Knowing what they’re capable of as photographers, it means a lot to hear their words of encouragement. In the end, Susanna suggests that they ship out a complete rig from the Denver office for me to use a Nikon D800 with Aquatica housing and Ikelite strobes. I’m elated! They’re trusting me with a very expensive setup, and I’ll be able to take it to all of my upcoming destinations. 

Underwater housing for camera on desk

The Nikon D800 underwater setup. It’s a beast!

It’s an overwhelming experience, one I can’t really believe I’m living even as it’s happening. At the beginning of this internship, I expected writing to be my primary form of communicating underwater science to blog readers, friends, and family. Now, I’m learning an entirely new way to communicate science and ongoing research efforts. Little by little, Adobe Lightroom starts to seem more like a playground than a corn maze (albeit still confusing), and I find myself imagining shots that I hope to capture one day. 

After the day off, it’s back to early morning starts and busy dive days. The entire crew empties out of the house and carpools to Biscayne NP. Verdant palm fields and stagnant canals stretch alongside the flat, stick-straight road as we drive into the park. The land-based section of Biscayne is fairly small, so I quickly run into the natural resources team. For the next two days, I’ll be assisting Morgan Wagner and Jade Reinhart with Reef Visual Census (RVC) surveys (the same type of surveys I did in St. Croix). Morgan is a biological science technician and Jade is a University of Miami student working as a park research assistant. We get to know each other as we load up the boat, a 27-ft. Boston Whaler, with an assortment of gear: a lionfish canister and spears (just in case we encounter the invasive species on our dives), marine debris bags, clipboards and datasheets, and a camera to take photos at each survey site. 

Woman in boat writing

Morgan preps datasheets on the way to a survey site

A brief refresher on the RVC surveys: these surveys provide information on fish biodiversity, coral coverage, and reef distribution. We’ll be focusing solely on fish assessments this week, which includes recording all of the fish species we observe at a given site, along with their sizes and total abundance. After we load the boat, Morgan, Jade, and I don our personal flotation devices (PFDs) and headphones and jet to our first site. It’s a humid, sunny day, and I nearly give myself whiplash looking around at all of the different keys and mangroves scattered throughout the water. Morgan points out Adams Key, which used to be home to the old Cocolobo Club, a destination for a handful of presidents and many of the rich and politically connected. She continues the history lesson along the way. “That rock over there? Pirates used to tie their sails down behind it, which tilted the boat so others couldn’t see it. Then they’d jump out and ambush other boaters.” Thankfully, we make it to our sites pirate-free. 

Selfie of woman in sunglasses and hat

Necessary gear for being out on the water all day: Hat, sunglasses, sunscreen, and a PFD. The headphones are a nice way to muffle the wind and engine noise while we’re in transit.

Not every site is exciting. Sometimes they’re dominated by seagrass, or they’re mostly sandbeds with a few lonely corals and rocks. But, occasionally there’s a surprise. We drop down on the third site for the day and I kneel in the sand, recording a few small gobies and damselfish I see in front of me. Then, there’s a sudden movement in the corner of my eye. I glance up, only to be nearly smacked in the face by the caudal fin of a lemon shark! The shark swiftly disappears into the distance, and I’m left wide-eyed and laughing at the scare. It’s a fun element of being underwater. You never know what might emerge from the blue!

Women on bow of boat lifting rope

Jade fixes the boat’s anchor line with a new knot.

Storms move in during the afternoon, so we find ourselves dodging lightning and storm clouds as we make our way back to the park. Once we return, another surprise! While we were out doing RVC surveys, the SRC and SEAC crews were on their own boats, one of which is for anomaly jumping. High-resolution magnetic surveys are conducted throughout the park’s waters to identify anomalies areas with the presence of iron on the seafloor. The magnetometers used to conduct the surveys are incapable of discerning derelict traps or other garbage from potentially historical submerged shipwrecks, though. Therefore, the SRC archeologists dive at each anomaly site to determine whether it’s an area of historical significance or not. Most of the time it’s just a piece of garbage, but we find out once we dock our boat that the crew came across an airplane wreck today! Everyone is in great spirits as we unload the boats, rinse gear, and call it a day. 

Morgan, Jade, and I have another successful day of RVC surveys, and the following day I am placed with another crew of park biotechs and interns. Gabrielle Cabral, Zoe Dallaert, Cate Gelston, and John Ricisak, a collaborator from the Miami Dade County Department of Regulatory and Economic Resources, are heading out to collect illegal lobster, spider crab, and stone crab traps in Biscayne Bay. There are seasons for trapping each of these crustaceans, but at this time of year, the remaining traps in the water are illegal. To find them, we scout from the boat and search the water’s surface for floating buoys. Once we spot one, we drive over and use a long hook to grab the buoy line and pull the trap out of the water. These traps are heavy around 50 pounds so it’s easier when two of us grab the slimy, algae-covered rope and hoist each trap up together. After pulling up the trap, we open it up and free any creatures who have been stuck, careful not to grab them in order to keep our fingers intact. John tells us that stone crabs can easily cut off a finger with their large claw.

Boat with two people on it and ocean

Gabby and Zoe prepare to hook the buoy line of a derelict lobster/crab trap.

Pulling up a trap. We’ve already collected quite a few by mid-morning!

“What’s in this one?”

Lobsters and crabs wait to be freed back into Biscayne Bay

It’s a messy business, and we’re all quickly coated in green algae and murky brown slime from handling the traps. Regardless, it’s fulfilling work, and by the mid-afternoon there are towering piles of traps on the boat, making it nearly impossible to get to the bow. Offloading the boat takes a while with so many traps, and we then have to load them up into an NPS truck so they can be taken to the dump. The park just got a beautiful new truck, and the bed is literally spotless. Not for long, though! We manage to barely fit all of the traps from the day into the bed of the truck, and then spend quite a while rinsing down the truck to return it to its new, shiny condition. Park service equipment is put through a lot, but everyone tries their best to take good care of what they use.

All in all, this week is an exciting way to experience more of the Florida Keys, continue to explore Biscayne NP, and get to know the SRC crew. Although my fieldwork is separate from theirs, living together offers a unique opportunity to talk to everyone and to learn more about their jobs as underwater archeologists. Not only that, but I get to observe how their field crew operates together, something that I find particularly interesting as I jump into multiple crews throughout the park system. With field crews, everything suddenly becomes very close-knit, from conversations to physical spaces. In our case, the Airbnb is simultaneously operating as a gear locker, office space, and living space. The coffee table is covered in books about disappeared wrecks and reports of underwater historical and cultural resources. Gear bags and pelican cases take up an entire corner of the living room, and there are dive booties and miscellaneous gear drying on the patio furniture in the backyard. “Work” is always around, but people find ways to sit back at the end of the day and relax. AJ strums his guitar in the evenings on the back patio. David and I get wrapped up in conversations over coffee about travel, life, and his boisterous kids. In the evenings, Matt and Dave watch TV, switching between The Office and various movies. We go out for dinner a few nights, too, grabbing barbecue from a local joint in town and going out on another evening to celebrate Matt’s birthday. As eager as I am to head to my next destination, Dry Tortugas National Park, I’m going to miss hanging out with the SRC crew. 

To everyone who made my week a success, thank you. Morgan, Jade, Gabrielle, Zoe, and Cate thanks for letting me come along and showing me the Biscayne experience. You are all rockstars! A massive thank you to the entire SRC crew for truly making me feel like part of the team and for supporting my ambitions and hopes for this internship. Brett and Susanna, I cannot thank you enough for teaching me, encouraging me, and most of all, entrusting me with an SRC camera rig. I’m determined to break into the world of underwater photography now, and I couldn’t do it without the support from OWUSS and the SRC. I hope that I can hone my skills in the coming weeks and use them to share the beauty of the national parks and the scientific research and work being done within them. 

 

References:

  1. National Park Service U.S. Department of the Interior. (June 2021). What We Do (U.S. National Park Service).  https://www.nps.gov/aboutus/index.htm#:~:text=Follow%20Us-,Our%20Mission,of%20this%20and%20future%20generations.
     
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One fish, two fish…175 fish?!

Along with tracking individual stoplight parrotfish, Sparisoma viride, our team has been busy conducting behavioral observations and getting GPS tracks of four other species of parrotfish for a total of 175 fish follows! It has been interesting to see how these species’ behaviors differ. While striped parrotfish (Scarus iseri) pay little attention to other males and do not defend their space on the reef regularly, other species, like the redband parrotfish (Sparisoma aurofrenatum), interact with conspecific males by flaring their dorsal fins as if to say, “this is my area, stay out!”

The redband parrotfish, Sparisoma aurofrenatum, will flash its fins at intruders instead of chasing them away like other parrotfishes.

One of Josh’s goals for the summer is to get a better idea about how terminal phase stoplight parrotfish interact with other conspecific males to defend their territory on the reef. During multiple dives, Josh and I followed male stoplight parrotfish and categorize the type and the duration of interactions with both terminal and initial phase fish. While males regularly chase smaller “floater” males (i.e., fish that do not possess a territory) out of their territory, it appears that males of similar size that share territory boundaries interact less often and less aggressively. . This “dear enemy” effect has been observed in several other species, but never documented in parrotfishes! Males will often interact with females in their territories. These interactions are usually brief and appear to be over feeding spots. However, on occasion we would see males chase females completely out of their territories, suggesting that maybe these females were not part of their harem.

Collecting “dear enemy” data on parrotfishes
Photo Credit: Joshua Manning

In his previous work, Josh found that males of some species partition reef space into non-overlapping territories but share space with other parrotfish species. As part of Josh’s dissertation work, we wanted to observe how fishes interact within shared spaces. During days we were not diving, our team donned snorkel gear and headed to Invisibles and Aquarius to simultaneously track parrotfishes. During these tracks, I would follow a male stoplight parrotfish around the reef site while Josh followed a male queen parrotfish. For most of the follows, our fish generally did not interact much, often swimming by without paying any mind to the other. Occasionally, however, the two fishes would swim toward the same patch of the reef to graze. It was a moment of excitement for us on the surface – sometimes we would be so focused on following the fish and seeing which species got to graze at the coveted lunch spot that we would forget about the other person on the surface!

A terminal phase queen parrotfish, Scarus vetula, after briefly grazing on the benthic substrate continues swimming to find its next snack!

Josh hopes that these data will help us to better understand the drivers behind territory maintenance and space use in parrotfishes, which may have implications for the makeup of the underlying benthic community. This in turn could provide important insights into coral reef management to restore and maintain a healthy ecosystem.

The team is all smiles after wrapping up a great field season!

This summer has been packed full of field work both above and below the surface and I was able to learn a lot about the role of parrotfishes on coral reef ecosystems! I am so grateful that I was able to experience Bonaire for the first time with this amazing group of researchers. Thank you to Our World Underwater Scholarship Society and the American Academy of Underwater Sciences for providing me with the opportunity to be the 2021 Mitchell Internship, and to Josh Manning and the members of the McCoy lab at Florida State University for being such great hosts!

 

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All Women, All Week: Marine Debris Removal in Biscayne National Park

two scuba divers looking at a derelict lobster trap underwater Biscayne National Park is a coastal haven of mangrove forests, coral reefs, and historical submerged shipwrecks. The 173,000-acre park in South Florida is 95% underwater, so marine debris removal is a priority for Biscayne’s natural resources team. This week’s project objective is to remove as much marine debris from the park as possible. The term “marine debris” encompasses a plethora of objects that are discarded in the ocean. Soda cans, car tires, monofilament fishing line, toilets (yes, toilets), nets, plastic bags, you name it. They’re tossed into the sea and can cause significant damage to coral reefs and marine life. Many of these items take decades, or even centuries, to degrade. When these harmful objects are left in marine ecosystems, they accumulate and pollute the ocean more and more each year.

This week’s project is extremely unique, and I can’t wait to get started. For one, the team consists entirely of women. Not only that, but five of the team members are military veterans from the Wounded American Veterans Experience Scuba (WAVES) program. The non-profit is a partner organization to the NPS Wounded Veterans In Parks (WVIP) program, which provides opportunities for veterans to volunteer with parks or programs like the Submerged Resources Center (SRC) and work alongside NPS divers on specific resource or maintenance projects. In addition to supporting the mission of the NPS, scuba diving offers countless therapeutic benefits due to the properties of an aquatic environment 一 the feeling of weightlessness, limited audio input, and less force of gravity. For military veterans, the freeing and relaxing nature of diving can further facilitate recovery from a number of service-induced injuries, from amputation to Post-Traumatic Stress Disorder (PTSD).

I’m excited to participate in such a unique experience for the veterans, and I’m particularly thrilled that we’re working as an all-female team. Personally, I’ve never done anything scuba-related with a fully female group. Most of my scuba instructors were men, and in my experience, men far outnumber women in the professional diving industry. Similarly, female representation in the armed services is small. Working in male-dominated work environments can have its challenges, especially when the job is fairly physically demanding. I’m hopeful that during the upcoming week, the women involved in the project will be able to work without feeling the need to “keep up with the guys”, an all-too-common pressure that many women feel in the workplace, especially in the armed forces.

The crew for the week! From left: Karen, Ashley, Annie, Abbie, myself, Linsay, Jess, Char, and Esme. Photo credit: Susanna Pershern

My internship schedule is packed until October, with the exception of a single week of downtime between my recent project in St. Croix and my upcoming assignment in Biscayne. I fly back home to Colorado for the off days. It’s a much-needed opportunity to catch up on writing, organize my photos, and repack for the next leg of my journey.

Come Saturday morning, I head to the airport to hop on a flight to Miami. I’m back in the groove of traveling (or so I think…), so I cruise through security and arrive at the terminal with plenty of time to spare. First, I sit down to reorganize my backpack. Airport security has a tendency to be suspicious of the wide-angle lens that fits on my underwater camera housing, so I typically pack the lens in the top of my bag before going through security and rearrange it prior to boarding my flight. After I reorganize, I grab breakfast, fill up my water bottle, and head to the gate.

The flight is nearly four hours long, so I’m planning to work after we take off. I fidget in my seat until the seat belt sign turns off. My morning cup of coffee has kicked in and all I want to do is put my headphones on, zone out, and catch up on blog writing. Eagerly, I jump up and reach for the laptop case in my backpack.

Strange. I can’t feel it. I dig deeper in the seemingly bottomless bag. It’s a laptop case, so it takes up a decent amount of space. At least, it does when it’s in the bag, which I quickly realize it is not. I immediately start mentally backtracking my steps. Within seconds, I know where my laptop is. It’s on the floor, next to a seat in the terminal. Gate B43. Well, it might be. Who knows at this point.

I’ve NEVER done this before. Sure, I’ve left the bathroom without picking up my cell phone, but I’ve always been quick to realize my mistake and turn around to grab it. Unfortunately, there is no option to turn around in this scenario. I’m rattled, but the situation is out of my control. I sit back into my seat, remind myself that it could be worse, and try to shake it off. I’ll handle it when I land.

Ultimately, there’s not much I can do to “handle” the lost laptop scenario. I file a report with lost and found and will just have to wait and see. Thankfully, the SRC crew is more than supportive when they hear about my predicament. SRC Chief, Dave Conlin, generously offers me the use of his personal laptop for as long as I need, and Matt Hanks, one of the team’s archaeologists, says he’ll check the lost and found in Denver when he flies out to meet us in a few days (the SRC men will be working on archaeological projects in Biscayne while we’re doing the WVIP project). It’s reassuring to feel like no matter what happens to the computer, I’m in good hands.

It’s Monday morning, and I’m piling into a packed-to-the-brim Suburban with Annie Wright, an SRC archaeologist, and Susanna Pershern, an SRC photographer. Annie is the project lead, and Susanna is documenting the project. Susanna and I are dive buddies for the week, so I’m looking forward to watching and learning from her. I wasn’t able to work on underwater photography much during my last project in St. Croix, but this week I’ll have plenty of opportunities to learn, practice, and hone my underwater photography skills. Having access to a professional makes for an even better situation!

Car and stacks of equipment next to the car

After loading the car, we drive to Key Largo and meet the women from the WAVES group. There are five veterans: Linsay, Abbie, Char, Esme, and Karen. Accompanying the group is Ashley, a WAVES scuba instructor, and Jess Keller, a former SRC archaeologist who now works at the University of Miami. At first, introductions are polite and somewhat reserved. I get the sense that everyone’s a bit nervous but simultaneously excited. I sure am! Our ten-woman group will be living together in an apartment above Quiescence Dive Services and diving together off a charter boat from Horizon Divers for the week. In other words, we’re going to be together A LOT. In my experience, I’ve found that there’s always an initial “sussing out” period when you join a fieldwork crew, especially when you don’t know anyone. You have to get a sense of everyone’s personalities, how they work, what their quirks are, etc… Usually, by day two or three, walls tend to fall down and people open up with each other more.

sunset and palm tree

The initial plan is to start diving on Tuesday, but a small tropical storm rolls through on Monday and continues into Tuesday, making the waters too rough for diving. The unexpected dry day is a good chance to prep my camera gear and get to know the group a little better. The veterans seem to be clicking with each other quickly, and I find myself being drawn into their conversations. There’s an unspoken sense of comradery between them that’s noticeable as they talk about their backgrounds, struggles, successes, and goals. They’re all incredibly eager to get in the water, and I can’t help but feel energized myself from the enthusiasm in the air.

On Wednesday, we’re able to go diving! The early risers, Char and Ashley, get up first and start the coffee. By 6:45, the apartment is bustling as everyone eats breakfast, makes lunch, and grabs essential items for the day. We load up the cars and shuttle down to the marina, where we meet our entirely female boat crew: Captain Dani, and mates Chelsea and Megan. The charter boat makes for a very relaxed run out to the dive sites. It’s spacious, comfortable, and moves with ease through the water (that’s all thanks to Captain Dani). It even has a head (boat toilet)! I try to remind myself that this will not be the norm for the rest of my internship. I’m used to schlepping tanks around, loading equipment onto the boat, and helping with mooring and docking, but because we’re on a charter boat, the captain and crew handle everything. I try to make good use of the extra time by experimenting with the camera and writing notes for my blog.

Captain Dani, left, and mate Megan.

Once we reach our first dive site, another boat appears with two more women aboard. Shelby Moneysmith and Vanessa McDonough are the SE Regional Dive Officer and Fishery and Wildlife Biologist, respectively, at Biscayne NP. They’re going to be meeting us at each dive site to assist with debris removal. Once they moor their boat to ours, Shelby and Vanessa don their snorkels, jump in the water, and swim over to our boat. They’re ecstatic to be participating in the project and give us a brief on the dive sites we’ll be visiting for the day.

Vanessa and Shelby met us every day to help with debris removal.

The team gets off to a fantastic start collecting debris. We’re on the lookout for monofilament lines, cans and bottles, fishing equipment, and whatever other debris we encounter during the dives. As we come across debris, each diver has a mesh bag that they can store it in for the duration of the dive. Larger objects, like derelict lobster traps, can be sent directly to the surface with lift bags. A lift bag is a piece of diving equipment designed to lift heavy objects from the seafloor. They’re made with airtight fabric and can be clipped to objects and subsequently filled with air from a diver’s second stage, pulling the object to the surface. Once a piece of debris reaches the surface, one of the boat captains drives over and pulls the object from the water. On the smaller side of things, monofilament fishing line is particularly important to find and remove. The small yet strong line can easily slice through soft corals and wrap around other marine creatures, like turtles and fish.

Jess Keller inflates a lift bag to pull a large pile of rope to the ocean surface.

 

Project leader, Annie Wright, pulls a monofilament fishing line up from the reef.

While the rest of the group is collecting debris, Susanna and I follow with our cameras. I desperately want to start snapping miraculous photos off the bat, but I quickly realize that this craft is going to take a LOT of practice. Thankfully, Susanna is patient with me and takes the time to give me suggestions underwater and answer my questions topside. At first, I feel flustered and clunky with the camera rig underwater. I’m not sure what to do with the strobe lights, how to manually adjust the camera settings correctly, or what to focus on in the first place. It’s overwhelming, but I quickly come to enjoy the challenges this new practice presents. Until recently, I had never been a fan of bringing a camera with me underwater. It always seemed impossible for me to adequately capture the colors, the activity, and the vastness of the underwater world. But, one of the biggest challenges of working in marine science is trying to effectively communicate issues and convey ecological change, and visual communication is an essential part of doing just that. So, I’m determined to do my best and figure it out.

It took me a few days to understand how to use camera strobes effectively. This was the first photo that was lit the way I envisioned!

Midway through the first day of diving, another boat appears on the horizon and moors up behind us. Pedro Ramos, the Superintendent for Everglade, Biscayne, and Dry Tortugas National Park, has been escorted out on the water by SRC Chief Dave Conlin and David Morgan, another SRC archaeologist. Like Vanessa and Shelby, Pedro dons a snorkel and swims aboard for a few minutes. He’s excited to meet the veterans and expresses his support and encouragement for the vets and the project.

As I talk to the vets more and listen to them converse with Pedro, I come to understand that having a mission is especially motivating to them. It makes sense, considering that they come from careers where everything is mission-oriented and objective-driven. To go out each day with the intention of locating and removing as much marine debris as possible gives all of us a sense of purpose, and an even more enjoyable sense of accomplishment when the day is over and there are trash cans full of debris on the boat.

The week progresses smoothly. I’ve abandoned any hope of retrieving my laptop from the Denver airport, but towards the end of the project, I’m not even thinking about it much since we’re having so much fun. I’m much busier both underwater and above water now that I’m working on photography. During each dive I scout around, looking for the veterans and snapping pictures of them pulling monofilament line off of corals and stuffing old glass bottles into their bags. Once we’re back home, I have to rinse the camera housing in freshwater, pull out the batteries to charge them (admittedly I forget this step a couple of times), and upload and organize the day’s photos on the computer. It requires quite an attention to detail, but I’m starting to find a rhythm.

Linsay and Abbie collect debris, stirring up some of the sediment on the seafloor

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It’s Friday afternoon, and the boat cruises back to the marina. I pull my phone out and am surprised to see that I have service (coverage is spotty on the water). Emails are coming through, and one catches my eye. It’s from the Denver airport lost and found. I’m not expecting any miraculous recovery updates, since it’s been nearly a week since I left the laptop in the terminal. But, to my disbelief and overwhelming joy, the email reads, “Lost article located…”. LOCATED! Absolutely giddy with relief and excitement, I run to the bow of the boat, where everyone is relaxing after the long day of diving. “They found my laptop!” I exclaim. Susanna jumps up, as excited as I am. “No way!” The rest of the team yells a collective “hooray!” as I dance around. Could this week get any better?!

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By the end of the week, it’s as if all of the women on the team have known each other for ages. We’ve laughed, cried, learned, and grown together. We’ve made an impact in Biscayne, and I think the project as a whole has made an impact on everyone involved. Overall, we collected 587 pounds of marine debris, from tiny lead weights to cumbersome derelict lobster traps. Just the monofilament line alone is enough to stretch across three football fields. On the photography side of things, I snapped nearly 500 photos during the project! I’m extremely happy to have made strides with my photography skills. It’s a lot harder than I anticipated, but the process of understanding the lights, camera, and my subjects in order to capture what I envision is totally addicting.

Our friends from the National Park Foundation joined us for a few days on the boat

There are so many people and organizations who made this week happen. The project wouldn’t have been possible in the first place without funding from the National Park Foundation and support from the SRC who created and manage the NPS WVIP program. Additional support came from the Women Divers Hall of Fame, an organization that recognizes women leaders and innovators in the diving community. To everyone involved, thank you. I truly hope it is the first of many all-female WVIP projects. I’d also like to thank Susanna Pershern for her patience, guidance, and encouragement as I work to improve as an underwater photographer. And of course, thank you to OWUSS and the SRC for making it possible for me to participate.

Next week, I’m staying in Biscayne National Park and working with the natural resources team on various projects. Check back in a bit for another week of adventures!

 

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Diving into the DAN Internship

The second half of my internship here at DAN has been packed to the brim with events. I have been able to complete my pilot study on the hydration status of scuba divers. In this observational study, I collected urine samples from divers pre- and post-dive and compared them to control samples with no dive in between. I then analyzed these samples for urine-specific gravity and osmolality in order to see how hydrated divers are entering and exiting a dive. I compared these changes to any changes that would normally occur during the day. I obtained great data from divers here at DAN, but the majority of the data came from our trip to West Palm Beach, Florida, for Lobster Mini Season. Here, we joined charters to take measurements on divers including urine samples, neurocognitive performance, subjective fatigue, skin conductivity, electrocardiograms, and more.

Here is a picture of me on the Pura Vida charter analyzing pre-dive urine samples while the divers are in the water.

We not only took measurements during this trip, but we also got to dive! Our first day on the road consisted of stopping in Charleston, South Carolina, to dive the Cooper River, where we hunted for prehistoric shark teeth and fossils. Our next stop we didn’t dive at, but we got to take a behind-the-scenes tour of the Georgia Aquarium in Atlanta. We then stopped in Blue Grotto in North Florida to dive the crystal-clear cavern on our way down. Finally, we also dove on the beautiful reefs in West Palm, which are some of the best that the Atlantic side of Florida has to offer.

Shark teeth I found in the Cooper River.

Above the Voyager pool at the Georgia Aquarium that houses whale sharks, manta rays, and many more species of fish and aquatic life.

At the bottom of the 100-foot cavern of Blue Grotto.

Myself and two other interns descending on the reefs of West Palm Beach.

Another project that I have been involved with recently is serving as a research subject at the Duke Hyperbaric Medical Center. I am involved in a study that is looking to see if a ketogenic diet is protective against oxygen toxicity in divers. For this study, I will enter their hyperbaric chamber two times; one time on a ketogenic diet and one time on a normal diet. For each round, I will be breathing 100% oxygen at a depth of 35 feet of sea water while hooked up to an electroencephalogram, electrocardiogram, IV line, electrodermal activity sensors, and expired gas monitors while peddling on an underwater ergometer and playing a flight simulation game. I will do this task for two hours each round, or until I show symptoms of oxygen toxicity. Another study that I have already completed is looking to see how we can automate the detection of venous gas emboli in divers. For this study, a Doppler device was used to listen to my heart sounds and the information is being used to train a device to listen for bubbles in the vasculature.

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Final Weeks at REEF

We are officially in the last two weeks of the internship and I am not ready for it to end. This last month has been full of outreach events, diving, and surveying. Earlier this month was Rock the Dock, a REEF tradition held at a beloved local bar. It’s a cookout, hangout, and outreach event all at once, with free t-shirts included. What else could you ask for? We had a booth which included a nerf gun shooting gallery called Reef Protectors. The goal of the game is to shoot only the lionfish, leaving the other fish intact. Helping little kids with this game was fun and dangerous. I almost took a nerf dart to the face! All of the proceeds made by the bar, Sharkey’s, during Rock the Dock go back to REEF which is just one example of how much people care here in the Keys.  

Helping future Reef Protectors shoot lionfish at Rock the Dock

We’ve also had some great groups visit us this month. West Coast Connections, Road Scholars, and Road Less Traveled are all education groups that take like-minded people from across the country and bring them on adventures to different areas. We got to be a part of their journey to the Keys, giving them presentations on Fish ID, Invasive Species, and Florida Keys Ecology while they were here. West Coast Connections spent the most time with us, which was a ton of fun. All the kids were in high school and interested in marine science, so we got to foster that love by taking them snorkeling on local reefs and kayaking through the mangroves at Pennekamp State Park. I loved working with the group for a full week and getting to see them grow as they learned how to ID fish and then saw those fish in their habitats on the reef. I will never get tired of how excited kids get when seeing fish that they know!

Teaching West Coast Connections some Florida Keys ecology before we kayak through the mangroves

I will also never get tired of the diving down here. Most of the dives that I have completed have been on shallow, high profile reefs. I’ve slowly been collecting a life list of fishes that I have seen. Most recently, I saw the Greater Soapfish which has been on my list forever! Unfortunately for my friends, as I learn the smaller fish, like Gobies and Blennies, I have been spending more time staring at the sand for entire dives. Most dive shops know to let us go unguided now. While everyone else is looking for the Eagle Rays and turtles, the REEF group is trying to find the Goldspot Gobies and Redlip Blennies, fish that are only a couple inches long maximum. Next week we are planning to dive another well-known wreck down here, the Eagle, which I am so excited for! This summer was my first experience with wreck diving, and now I can’t get enough. I love exploring deep wrecks and feeling like we are the only people in the ocean when we are down there.

Right after I saw a Soapfish!

We are planning to make the most of the last two weeks here, with as much diving as possible, a trip down to Key West, and even more education events. I am not ready to leave the Keys or the family that I have found down here, so I will continue working in Key Largo for an organization called MarineLab, a marine science education organization. I am so excited for the next step of my Keys adventure and owe it all to REEF and OWUSS!

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Seagrass sampling using quadrats in Estero Bay, FL.

At Florida Gulf Coast University there were a few ongoing research projects I helped with including seagrass collection. I joined a grad student and some undergrads on a day of seagrass sampling out in Estero Bay right behind the Vester Marine Station. The sampling was your basic randomized quadrat counts. I had done seagrass sampling before but either in freezing northern California water or in 1-3m deep sites without scuba gear. So sampling in sites of 1.5m max depth in a warm bay was a nice change. We worked really fast and managed to do (an almost record) 20 sites by the afternoon. 

Amanda Ho collecting halimeda algae off the east coast of Florida.

 

Our next dive training session was done on Florida’s Eastern Coast at a reef site called Ant Mounds off Deerfield Beach. Here is where I did my first ever nitrox dive with a 32% oxygen mix. We analyzed our tanks and calculated our dive based on dive tables to hone our skills from the e-learning. On the first dive, we once again collected halimeda and dictyota samples followed by on-boat processing. Then we switched our tanks and did a nice fun dive along the southern portion of the reef. This site had dozens of barrel sponges and a visiting loggerhead sea turtle.

Our last day of diving was probably my favorite, despite having to wake up at 3:00 in the morning for it. Although I set 15 alarms, none went off, but somehow, I miraculously awoke at 3:20 in the morning. We all successfully met at the dock shortly after 4:00 in. the. morning. to load up the vessel and depart on a 3 hour boat ride to the first sampling site 80 miles off the coast of Ft. Myers, FL. Thankfully, the conditions were smooth and it was surprisingly relaxing to be so far from land.

 

 

A Mako shark adorned with sargassum spotted 80 miles offshore in the gulf c/o Alex Donnenfeld.

Once there, a few went on a tech dive to evaluate a potential site for red tide research, while me and my buddies snorkeled around the boat looking at small schools of fish and a curious barracuda in stunningly crystal clear blue water. We made our way back to the tech divers once they surfaced only to see they had made a new friend: an unwavering, adequately-sized, silky shark. We definitely needed a bigger boat. A little further from that initial point we noticed another dorsal fin in the water which turned out to be a mako shark. I was stoked; I’d only ever seen nurse or black-tip sharks until then. 

 

 

Amanda Ho deploying a sediment trap.

After gawking for the requisite amount of time, we carried on with research. We took YSI and CTD readings, along with water samples at 6 sites in the gulf. The data would be sent to Fish and Wildlife for an ongoing red tide monitoring project. At the final site, we geared up our tanks to deploy sediment traps at an artificial reef consisting of cement structures. After 14 hours at sea we got back to the marina at 7:00 pm only to begin the long process of unloading and washing the boat.

 

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The Adventure So Far

I began my internship here at the Reef Environmental Education Foundation a little over six weeks ago but thinking back on everything I have done so far it feels like I have been here for years. My weeks at REEF have been jam-packed with activities and learning experiences, and they have also been full of fun with the best coworkers anyone could ask for! My journey here started with an unexpected complication when I dropped a fridge on my leg the day that I left for the Keys, and I was anxious about starting this new chapter of my life straight from the hospital. The second that I met my housemates/coworkers, all my stress disappeared. My fellow interns, Hailey and Maddie, are the sweetest, friendliest people I’ve ever met and getting to go through this internship with them so far has been an unbelievable amount of fun!

Our first few weeks here were orientation and a steep learning curve. Originally, we were supposed to go straight into the water but the weather was rough when we first got here, with waves at an average of 3-4 ft, so we weren’t able to go snorkeling and diving until week 3. On the bright side, the time that we lost in the water we made up for exploring our new home (and I didn’t have to plastic wrap my stitches which is always a bonus)! The former interns before us left a Keys Scavenger Hunt, which included going to their favorite café in Islamorada (the adjacent Key), wandering through an artist village featuring a giant lobster statue, and finding a plant nursery complete with chickens, a bunny, and dogs! Not all the lessons were as fun as this, but they were all equally important. A large part of orientation was learning our educational presentations by heart that cover our four main programs, and I am now an expert on lionfish/invasive species, Florida Keys Ecology, and our fish ID program!


Me, Hailey, and Maddie in front of the giant lobster at the artist village

Speaking of fish ID, survey trips are definitely my favorite part of this internship, even if it is so hard to choose. Our first survey trip was unsupervised, with just the three of us Marine Conservation Interns, and it was a challenge. If I can take any lesson from this internship so far, I will say that mistakes are far easier to learn from than getting things right on the first try, and this snorkel trip was a great example of this. The waves were rough and so was the current and holding onto our dive slates was more of a struggle than I thought it would be. Since then, we have all discovered our favorite survey set-ups, which is apparently a rite of passage here. I am now a level-2 surveyor and hope to achieve at least ten surveys before leaving!

Our first survey trip!

The diving here is incredible too! Only Maddie and I came into this internship with our certifications, but Hailey completed the last of her check-out dives this weekend which promises many group dives ahead. So far, I have only completed six dives, but all of them were unique and special. I have dived shallow wrecks at night, high profile reefs, and a deep wreck, which was exciting and a little terrifying. Below is a picture of my supervisor and I on our way to dive Spiegel Grove.

Something that I was most looking forward to this summer was our Ocean Explorers Summer Camp, which we are wrapping up this week. Even though it was a little exhausting (kids have so much energy!) I am so sad that it is over. I loved being able to introduce kids to my favorite parts of the ocean. Even though I only got three days with them, it was so special! I was able to take them snorkeling, kayaking, seine-netting, and many other fun activities. Our first week of camp was ages 8-10 and the second was 7-13. Working with a variety of age groups gave me different but equally fun experiences. I knew that I had a passion for educational outreach but working at camp confirmed this!

Giving my first official educational outreach presentation

While I don’t want to think of this internship ever ending, I am so excited for the next six weeks! I know that they will be just as fun-packed and educational as the last half, with new experiences and adventures. I am hoping to make it down to Key West with my roommates to see a sunset and go on a tour of all the best Key Lime Pie in the area (and maybe see a Key Deer!). I can’t wait to spend more time in the water now that the weather has started to calm down a little! More updates and pictures to come!

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AAUS Somers 2021 – Part 1

After over a year of waiting, I was glad to finally be the 2021 Dr. Lee H. Somers AAUS Intern with the Our World Underwater Scholarship Society (OWUSS). I was originally supposed to participate last summer, but COVID got in the way. Before the pandemic, I graduated with a degree in Environmental Science and Oceanography and I thought I should earn my AAUS certification. I’ve been diving for a few years, but up till now, only had my Advanced Open Water certification. 

The goal with AAUS is to complete a minimum of 12 dives geared toward scientific diver training, but as a bonus I got my rescue, nitrox, and diving first aid for professional divers certifications, as well. I spent hours on the e-learnings before I arrived at my internship’s host university in Florida. Once there at the Vester Marine Station of Florida Gulf Coast University in southwest Florida, I started by practicing rescue skills in their massive swimming pool. Before this, I had never actually dived in a pool — not a lot of wildlife, but I must say the vis is great. 

Test tube containing a turf sample.

The following week, I got to join the DSO (Calli Johnson), Vester’s research coordinator (Adam Catasus), and research assistant/divemaster (Alex Donnenfeld) on a sampling trip to the Keys, where we were met with rough conditions. My buddy and I made sure to take lots of bonine after that. Our days there were spent collecting samples of halimeda and dictyota algae from various sites. After each dive, we would process the samples to gather the epiphytes growing on the algae to later be tested for ciguatera, a potent toxin that seafood-eaters would do best to avoid. We had to process the samples quickly on the rocking boat to preserve the cells. With only a small portion of sample water lost to the deck, we shook up the samples and poured them through sieves until we had enough epiphytes isolated to separate into test tubes.

Amanda Ho sporting the new inside-out wetsuit trend.

When we returned to the Keys Marine Lab where we were staying, we continued our rescue cert requirements by doing a standard CPR/First-Aid course, which was convenient since it had been two years since my last renewal. But the day was not over yet. After a day on the boat, we got right back in the water for some night dives to deploy screens that would collect more epiphytes. That was easy enough, except that my flashlight hardly worked and I was so exhausted I put my wetsuit on inside out.

The next day, we did the exact same thing: algae collection, on-boat sample processing, and night dives to collect the screens. My buddy and I went by ourselves for the screen recovery, and with some spotty navigation, we finally arrived at the screens and successfully recovered them on our own. On the last day, we did, surprise, the same thing, but finished with performing our open water rescues from depth and officially completed the rescue diver certification.

Amanda Ho (center), Sam Ainsworth (left), and Alex Donnenfeld (right) headed out on a night dive.

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If Coral Reefs Were Forests

NPS boat heading to sea from marina

Between long dive days, spending free time with the crew, and exploring the island, week two on St. Croix passes quickly. We continue conducting fish and benthic surveys for the National Coral Reef Monitoring Program (NCRMP) during the day, and the evenings become focused on data entry. On a good day we conduct around seven site assessments, and each site assessment needs to be entered into the National Oceanic and Atmospheric Administration’s (NOAA) online data system. Data entry can be tedious, especially when survey sites are particularly fishy (lots of fish species and measurements to enter), but it’s fun with the University of the Virgin Islands (UVI) and National Park Service (NPS) crews. On some nights, I hang out with the NPS guys. We all banter while Jeff prepares his nightly chicken and barbeque sauce dinner, and I bounce between checking out Lee and Mike’s underwater photos and entering data on my laptop. Other nights, I meet with the UVI group and finish data entry while listening to music, watching movies, and comparing our days on the different boats.

As the project continues, I find myself more and more elated to be diving again, especially after 2020, the year of jarring isolation. Scuba diving on a daily basis “fills my cup” — there is nothing quite like breathing underwater and being immersed in the ocean. It provides a sense of peace and perspective that has always been difficult for me to find above water. As soon as I descend, my senses settle with the quiet calm and I focus solely on the present moment. I can’t quite explain it, but I soak up the time underwater as we continue to survey the reefs. The more time I spend diving around St. Croix and working with the NCRMP team, however, the more I’m faced with an unsettling, somber realization.

At face value, this job may seem like a vacation of sorts, a lucky chance to spend two weeks on a Caribbean island and dive to my heart’s delight. However, for marine biologists (especially those working in the Caribbean), diving every day is not equivalent to a carefree vacation. In fact, it’s quite the opposite. Everyone involved in the NCRMP project comes from a marine science background. We all choose this field (or it chooses us, some might say), and from my perspective, everyone is incredibly passionate about what they do. That being said, having a deeper knowledge of coral reef ecosystems inarguably makes it more emotionally taxing to dive amongst the reefs because we cannot help but see what is happening — they’re dying. They’re being wiped out by diseases and bleached by warming waters. It’s impossible for someone who studies these delicate ecosystems to be ignorant of the ghostly white, ever-growing presence of bleached corals and the algae-covered skeletons that were once vibrant and thriving. Personally, I find it consuming my thoughts as I spend my second week on St. Croix. I feel a self-imposed pressure to make these blog posts lighthearted and cheery, but I also believe that the SCTLD outbreak in the Caribbean is a crisis, and it is incumbent upon me to write about the somber reality of being a marine biologist in this day and age. 

Brain coral with SCTLD damage

SCTLD takes over a brain coral. The white side has been killed by the disease. Photo credit: Dan Mele

In the last decade, Caribbean reefs have experienced unprecedented declines due to overwhelming stressors, from warming waters, to increased hurricane damage, to novel infectious diseases. These phenomena are global, but within the realm of the Caribbean, specifically, we’ve seen the rise of a new disease in particular. Stony Coral Tissue Loss Disease (SCTLD) has been wreaking havoc on the Caribbean reefs since it first appeared off the coast of Florida in 2014. SCTLD is a highly lethal, infectious disease known to affect over 20 species of hard corals, and it can quickly turn a diverse, bustling reef into a graveyard. The disease spreads rapidly — it can kill a hard coral within a month (note, some of these corals can be hundreds of years old) and spreads easily through the water column. 

Marine biologists have to deal with disease — it’s part of being a biologist. But SCTLD in particular is hitting hard, and not just underwater. Emotionally, it’s taking a toll on researchers and field techs in a way that I didn’t fully understand until coming to St. Croix. For one, it’s an unavoidable topic. It’s at the forefront of everyone’s minds because, frankly, it’s everywhere. Site after site, we jump into the water, descend to the seafloor, and witness the damage. Some corals show the early signs of infection: splotchy white lesions, indicating recently dead areas caused by SCTLD. Other coral bodies have been killed completely, leaving behind colorless, stiff skeletons. At a handful of dive sites, I can’t help but feel as though I’m floating through a mass graveyard, arriving too late to save anything and bearing witness to incomprehensible damage.

Scuba diver with SCTLD-infected coral in the foreground

A diver looks on at an infected coral. Photo credit: Dan Mele

After a long day, Jeff and I have a conversation about SCTLD as we’re driving the boat back to the marina. Jeff is a coral disease expert and has studied coral reefs since the mid-80’s. He’s been diving the reefs around the U.S. Virgin Islands since 1997 (nearly as long as I’ve been alive). I can’t even fathom how many hours he’s spent underwater, and for the last 25 years he’s been a firsthand witness to the Caribbean reefs’ changes. There’s a mixed emotional response from him as we talk about SCTLD and the state of the reefs in the U.S. Virgin Islands — a cocktail of exasperation, frustration, and sadness. I share these feelings with Jeff, and I find myself constantly wondering why other people don’t feel the same intense emotional response that Jeff and I do when we talk about the ocean and the future of coral reefs. We’re watching a natural disaster unfold before our eyes. Why aren’t more people talking about it? Why aren’t more people doing something about it? Where’s the sense of urgency?

I’ve lived in the foothills of Colorado for the last five years. Last summer, I watched three forest fires sweep through my local mountains within a week. When night fell, I would look west and see the glowing red and orange hues of flames dance and pulse on the mountainside. During the day, a dense cloud of smoke and ash hung in the sky. The fires were raging for weeks, forcing people out of their homes and destroying much loved recreational areas and trails. But, as soon as the fires appeared, the community was there. There were so many people driving into the mountains to try and help firefighters that public statements had to be released to tell people to stay home. There were fundraisers. There were donation events. There were news articles and updates every day. The community was watching the mountains they loved burn down, and they wanted to do whatever they could to fix it. 

I have to think that if the reefs around St. Croix were forests, and coral diseases like SCTLD were forest fires, the general public would be up in arms, donating money to rescue groups and rallying the community to help out however possible. If only they could see the reefs with their own eyes and understand SCTLD’s overwhelming presence, they would understand. Because this ecosystem lies beneath the waves and out of everyday view, though, many people struggle to understand that the same level of destruction that a forest fire imparts on a forest is happening to the coral reefs right this very second. 

Pillar coral with white lesions from SCTLD

SCTLD initially forms small white lesions on coral before eventually spreading over the entire structure. Photo credit: Dan Mele

This unfortunate reality is largely a result of barriers — barriers in communication and barriers in knowledge and understanding. A world-class photographer with a top-of-the-line camera system can take photos of SCTLD underwater. It’s taking photos that emotionally captivate and engage viewers that’s necessary, but challenging. Social science suggests that people consume information that aligns with their personal experience and worldview — in other words, people tend to care about the things that directly relate to their own lives. However, the majority of the population does not scuba dive. There’s a notable portion of the global population that has never even seen the ocean, let alone been in it. This leaves people like me, Jeff, and other marine biologists with a rather daunting challenge: conveying the urgency and significance of a massive problem like SCTLD to people who aren’t directly affected by it, and as a result, don’t really care. 

I’m always one to take on a challenge, but I can’t help feeling frustrated by how hard it seems to bridge the communication barrier between marine biologists and the general public. Sometimes our efforts seem like those of Greek legend Sisyphus, the man who was condemned by the gods to live out his eternal life rolling a large boulder up a hill, only to have it roll back down once he reached the hilltop. Realistically, we cannot fully erase the damage that SCTLD has done. As Jeff reminds our crew throughout the week, “you’re never going to see these reefs look like this ever again in your lifetime”. Despite that potential truth, as I work with the dedicated organizations and people involved in the NCRMP project, I am motivated by the fact that all of us still believe that the boulder is worth pushing. More so, they consistently push as hard as they can, day in and day out. They recognize that every bit of time, effort, and action matters when it comes to facing issues like climate change and SCTLD, and there’s an unspoken agreement amongst us as we move through the project: knowing that you can’t completely solve a problem does not mean that you shouldn’t continue to make the situation better. 

Close-up photo of a brain coral with a small white lesion from SCTLD

A close-up of an infected brain coral. Photo credit: Dan Mele

NOAA and the NPS are both driving forces in preserving and protecting areas like the Virgin Islands coral reefs, funding research efforts, and communicating the significance of protected areas to the public. They make missions like NCRMP possible. There’s also the University of the Virgin Islands (UVI), which has established a successful coral restoration program, where broken pieces of coral are collected from the reefs, grown and multiplied in their coral nursery, and planted back on the reef. All of the UVI grad students and lab techs involved in NCRMP are also heavily involved in the coral restoration program, and I can tell you that it’s in great hands. Meanwhile, The Nature Conservancy operates a coral laboratory and nursery on St. Croix, and has partnered with leading coral science organizations to tackle the Caribbean reef crisis with novel technologies and experimental techniques. Collectively, these organizations continue to do what they can to mitigate damage to ocean ecosystems, rebuild what’s been lost, and encourage further conservation efforts. 

As I pack my bags and prepare to depart from St. Croix, I continue to reflect on my experiences over the last two weeks. One of my primary goals when I began this internship was to share what I learn along the way in a thought-provoking, engaging manner — I want to close the communication gap between those with their boots on the ground and people who aren’t directly exposed to the ongoing issues and efforts in the national parks. This project has motivated me even more to do just that. Thank you to everyone from the NCRMP mission for welcoming me onto the team, sharing your thoughts and stories with me, and helping make the first project of my internship a success. Additionally, a big thanks to Dan Mele for allowing use of his photography in this post. Next stop: Biscayne National Park!

five people on the bow of a boat

Last day of NCRMP celebrations! From left: Jeff, me, Kaya, Kristen, and Mike

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Divers Alert Network Research Internship Kick-Off

My time here at Divers Alert Network started with meeting and learning about the different departments including research, medical, marketing, and operations. We spent a few days taking a research field operator workshop, learning how to operate the various devices we use in data collection. The other interns and I then got briefed on the projects we would be working on over the summer and began doing literature review on them.

One project we started for the summer includes a neurocognitive battery test designed to measure mental fatigue in divers. This test involves a series of 10 “brain” games designed to test working memory, reaction time, dexterity, etc. Another project involves assessing the hydration status of divers by collecting urine samples pre- and post-dive and measuring markers such as specific gravity and osmolality.

Some of DAN’s ongoing projects that we jumped in on include an ultrasound comparison study where we take ultrasounds of divers with three devices to see if they all give comparable results. One is a larger ultrasound device with a computer, one a smaller ultrasound device that can hook up to an iPad or iPhone, and one a small doppler device that records sounds. Another project we jumped in on is the cardiac study where ECG leads are hooked up to divers to measure the electrical activity of their heart before, during, and after a dive.

We decided to clean out the DAN library as we try to make all of the diving-related literature virtually accessible.

This is a picture from our field operator workshop when David Le from UNC came to talk to us about the physics of ultrasound and how we can use it to manipulate microbubbles.

Here is a picture of my heart under the Vivid q ultrasound computer after a dive. We were able to see small venous gas emboli flowing through the right side of my heart. These bubbles are produced when inert gas comes out of solution during a high to low pressure change and can get lodged in the body and produce symptoms of decompression sickness. Most of the time they are benign. These gas bubbles are the reason divers do safety stops at shallow depths so they can decompress.

This picture is from our first ultrasound comparison weekend at Mystery Lake in NC (credit Dr. David Charash).

We have also done some fun dives at quarries around the area including Fantasy Lake and Blue Stone Quarry.

Over Memorial Day Weekend, we found an old American flag during a dive under a bunch of silt and thought it was only right to haul it back to the surface.

We have gotten to tour two hyperbaric chambers so far where divers become patients when they are struck with decompression illnesses. These chambers are used to treat a variety of other diseases and conditions, too. During the Undersea and Hyperbaric Medical Society annual conference, we learned about how these chambers operate and recompress divers to various depths and on various gas mixes.

Duke University’s hyperbaric chambers. There are 7 chambers here that house patients, hyperbaric technicians, and research participants.

Smaller chamber at Bluestone Quarry.

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