All dolphin photography taken under MMPA Permit #21938-03.
May not be used for commercial purposes.
By Jolinde Vlaeyen, Lab Manager After a rather challenging field season last year, the CKDP is gearing up to resume data collection on the unique dolphin population residing around the Cedar Keys. Working with wild animals always requires adaptability, but encountering unusually large dolphin groups made data collection particularly tricky last year. Additionally, technical issues with our equipment, including drone malfunctions and boat engine troubles, added to the setbacks, leading to frustrating delays in data collection. Despite these obstacles, with the community's help, we were able to overcome the challenges and gather valuable insights, including exciting observations of new behaviors and vocalizations.
This year, we are hopeful, as it started with quite some positive news. So far, we secured three (!) grants, which is making this summer’s field season possible. We sold our previous boat (which will be highly missed) and acquired a new one, upgraded some of the equipment, meaning that we are hopeful that this year’s field season, our primary concerns will now be limited to the unpredictable elements and the behavior of the dolphins—both factors beyond our control, but familiar challenges nonetheless. We are also thrilled to welcome back a familiar face to the team: Carrie, a returning field assistant who contributed invaluable efforts last year, particularly in photo-identification tasks that continue year-round. Additionally, we welcome Mira, our second field assistant to this summer’s team! The CKDP has managed to go out on the water a few times before the start of the field season, which have yielded sightings of many dolphin calves, marking a promising start to the season! Now, we eagerly embark on the task which we call “calf mysteries”, which is basically associating calves with their mothers, which is not always the easiest thing to do! Calves are supposed to be with their mothers at all times, but other dolphins enjoy being around the calves as well, so it is always easier to see the calved and their mothers multiple times for us to be sure who the mother is. Altogether, this deepens our understanding of dolphin life histories through long term ongoing observation. As with last year, our focus remains on deciphering the communication patterns among dolphins. While much is known about their vocalizations, regarded for their cognitive complexity, there's still a gap in our understanding of non-vocal forms of communication—a parallel to human conversations that involve gestures and body language. Specifically, we're intrigued by the extent to which dolphin interactions mirror our own, encompassing vocalizations, body signals, and gestures. Our daily routine on the water involves actively seeking out dolphin groups, capturing vital data such as group size, location, and the presence of calves. We deploy underwater microphones (hydrophones) to record vocalizations, including the distinctive "signature whistle" unique to each dolphin, facilitating individual identification. Simultaneously, drone technology affords us a bird's-eye view, capturing intricate body movements and gestures that elude observation from the boat. Identifying dolphins by their dorsal fins, we meticulously photograph each individual—a task requiring skill and patience, especially when confronted with groups numbering 40 or more. This year, we will also focus on expanding our aerial footage to document the various foraging techniques employed by the dolphins, including the unique "driver-barrier" method, wherein dolphins collaborate to catch mullet above the water's surface. This will allow us to compare such foraging techniques with other dolphin populations along the Florida coast. As we look forward to the upcoming season, we remain optimistic that we will achieve even greater success in our research endeavors!
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Continuing on the them of the last blog post, we asked the field assistants to answer a fun "exit interview" about their experiences this summer! Here are Nemo's answers!
What surprised you about this work? I was pleasantly surprised by how interested people were in the work we’re doing. What surprised you about the dolphins? With the dolphins I was surprised at how much their travel patterns vary. Some individuals stay in pretty much the same spot and some will bounce back and forth between locations, travelling astounding distances in the span of a couple of days. Favorite dolphin experience? My favourite dolphin experience was seeing a newborn baby dolphin a couple of days before the field season wrapped up. Favorite place to boat to (dolphins or no)? In terms of location, my favourite place would be Wacassassa Bay because I loved trying to spot gators chilling by the river. Favorite dolphin of season? My favourite dolphin is Twistie Tie, closely followed by Lulu (LUMM) who I affectionately referred to as Beluga Whale Fin. Most memorable day or moment on the boat I think the most memorable day on the boat was definitely the rescue operation where we tried to get cover netting off of a baby dolphin we had been keeping tabs on all season. The rescue was pulled off pretty successfully with minimal inconvenience to all parties involved, including the dolphins. What would your advice be for future assistants? My advice to future assistants would be to stock up on sunscreen and be prepared to work. It is physically demanding but incredibly rewarding and a fantastic opportunity to observe these intelligent animals in their natural habitat. Key food item for the field A key food item for the field is chocolate. Or anything sweet. Favorite/memorable phrase or saying? A memorable phrase that I won’t ever be able to get out of my mind is ‘up at your 3 o’clock’. (EDITOR'S NOTE: we use a clock system to describe the relative position of the dolphins to the boat) What do you wish you had brought with you this season? I wish I had brought a bigger water bottle with a lid that was easier to open. Most valuable item for the boat? Most valuable item for the boat is a hat. A wide brim hat with protective neck covering because that will protect you from the sun better than anything else. As the weather turns towards fall and we are entering our regular population surveys, it is fun to look back at the summer field season! We asked the field assistants to answer a fun "exit interview" about their experiences! First up is Carrie! Read what she wrote below. Check in later for Nemo's answers!
What surprised you about this work? I was surprised by how challenging it is to research dolphins in Cedar Key and the surrounding areas! The water is extremely shallow and murky, making it difficult to navigate the boat around obstacles. Some of the places where we frequently spot dolphins are only accessible to us (and the dolphins) at high tide. The murkiness of the water also often makes it impossible to see dolphins underwater, so quick reaction times are necessary to get good pictures of dolphins when they surface. On top of these challenges, the summer heat and humidity is no joke! This experience made me really appreciate how much time and effort goes into field work, and how amazing it is that CKDP is able to collect great data on these animals! What surprised you about the dolphins? I was surprised by how much time these dolphins spend socializing! Observing them in the wild made it clear how incredibly important social behavior is in their lives. I knew that lots of research had been done on how dolphins communicate vocally, but I was surprised to observe how important physical touch is in their communication as well. I was also surprised by how many different specialized techniques these dolphins use to forage. It made me so curious about what environmental and social factors influence how they forage and how these behaviors are learned. Favorite dolphin experience? My favorite experience was following two mom-calf pairs through narrow, mangrove-lined canals in the backwaters of Waccasassa. I always love watching moms and their calves interact with each other, but this experience was extra special because the area was so naturally beautiful and felt very remote from the outside world. When we emerged from the canals into Waccasassa Bay, they joined up with a huge group of socializing dolphins, which was so fun to watch! Favorite place to boat to (dolphins or no)? Waccasassa Bay was my favorite place to boat! It’s within a beautiful nature preserve that gives you a glimpse into what Florida’s Gulf Coast used to look like before development. We saw lots of large social groups of dolphins in this area, which were difficult to collect data on but really interesting to observe! Favorite dolphin of season? On my first field day, I somehow managed to take a picture of Crayfish (CHWE) leaping fully out of the water, right alongside our boat! He or she quickly became my favorite for giving me that fantastic photo op. We saw Crayfish many more times throughout the field season. His or her dorsal fin is easy to identify in the field, with its large triangle-shaped notch and vertical rake marks. Most memorable day or moment on the boat The most memorable day on the boat was definitely the last day of our field season, when CKDP partnered with the Sarasota Dolphin Research Program and UF Marine Animal Rescue to disentangle a calf who had plastic netting wrapped around its body and pectoral fins. We had been monitoring this entangled calf for weeks, so it was really gratifying to finally see it be released from the netting. The situation gave us a unique opportunity to collect data on the mom-calf pair’s behavior and communication before, during, and after the disentanglement, so I’m excited to see what we learn from this. What would your advice be for future assistants? The hardest part of the role for me was dealing with the heat on the boat. Make sure to drink tons of water, reapply sunscreen every two hours, and get comfortable with being drenched in sweat! Any skills related to boating and action photography would be super useful for field assistants, but don’t worry if you don’t have them - I certainly didn’t. Most importantly, stay curious about what you observe and how much more there is to learn about these animals. This is a great learning opportunity, so ask tons of questions and be open to feedback about how you can improve your skills. Key food item for the field Watermelon tastes incredible on the boat! Favorite/memorable phrase or saying? Everyone on the boat yelled “KNUCKLES!” every time the dolphin named Knuckles came up for a breath. I’m not sure why it was so funny, but it got me every time. “Hydrate or diedrate” was also a good one. What do you wish you had brought with you this season? I wish I had brought some long-sleeve fishing shirts or UV protection shirts to help keep me cooler and reduce the need to constantly slather my arms with sunscreen. Most valuable item for the boat? A good pair of polarized sunglasses is absolutely essential for protecting your eyes from the sun and spotting dolphins! They also help you see things underwater, like dolphins, other cool animals, or oyster bars that you are about to run into. ![]() By Stefanie Gazda, President of CKDP One of the many roles that the Cedar Key Dolphin Project plays is to assist in any way possible if an animal is in crisis. Fortunately there are not that many of those calls in our part of the world (likely due to fewer people along the coast and less pollution/trash in the waters). In the middle of July that change and added an extra dimension to our field season. We received a call from UF Marine Animal Rescue (UF-MAR) in mid-July that there was a report of a possibly entangled calf off of the City Beach in Cedar Key. UF-MAR was able to find the dolphin right away, and we joined them shortly afterwards to take photos of the mom and calf to see if we could identify them later on land. We were actually able to ID them right away because we had seen them so much this summer: the mom was NLCT (Nail) and the calf was DTNL (Dit), a young of the year (YOY) believed to have been born in March of this year. It's not as simple as it might seem to grab an entangled dolphin and take the line off. First, dolphins are protected by the Marine Mammal Protection Act, and any harassment of a dolphin at that level needs permission from NOAA, even from trained responders. Second, this is a calf under six months old: they are very vulnerable to stress, and there is a risk of causing more harm to the infant by trying to disentangle it without being very strategic about it. Last, we didn't know exactly how entangled the calf was: it was acting like a normal calf, frolicking around its mom and swimming normally. More research was needed, and this is where we came in. While UF-MAR worked on coordinating a response with NOAA, we continued over the next several weeks to monitor the calf and mom. We were able to provide a sighting history of the mom and calf to UF-MAR and the responders: NLCT is known for going in the backwaters along Channel Three and behind Scale Key. For all the years that we've collected data on her (since 2018), she's always around Dog Island, the City Beach, and behind Cedar Key. This was good and bad news. Good news: that she's a resident and doesn't go very far so we'd likely be able to find her again. Bad news: if you've ever gone through Channel Three, you know there is a lot of stuff for a boat to get hung up on. That makes an attempt to disentangle a calf even more difficult if you are dodging oyster bars. While we waited for the schedules of trained personnel, weather, tides, and wind to match up, UF-MAR determined that the material surrounding the calf was cover netting, which is one of the biggest marine debris problems in Cedar Key. CKDP was able to capture drone footage (allowed under our research permit, without which we would have to fly our drone at an altitude of at least 400 feet) and found that the netting was also wrapped around the calf's pectoral fin. We also relied on information from Captain Phil at Tidewater Tours, who told us where and when he saw the calf, whenever he saw them. This gave us more information about their habits and more data for the team. We took behavioral data at every sighting and luckily DTNL appeared to be healthy and vigorous, which was great news. Still, DTNL is a rapidly growing baby and that netting had to come off as soon as possible. Finally, the weather and people all lined up and the Sarasota Dolphin Research Program (SDRP) at Mote Marine Labs sent two trained personnel to disentangle the calf remotely (you can read their account here). Instead of using a net to corral the calf, they would try to grab the line with a long pole. Using a net is difficult even in beautiful waters, but given the combination of the silt in the water in Cedar Key, the oyster bars, and the calf's young age, a pole was the safer choice. On August 9th, CKDP and UF-MAR launched their boats and we searched all along the waterfront. After three hours, the CKDP boat found NLCT and DTNL traveling around Dog Island. While we waited for the UF-MAR boat to approach, we took more behavioral data and photos. Once the UF-MAR boat was on site, the SDRP personnel got to work, carefully approaching mom and calf in a slow and steady manner with the boat while one of them held a long pole with a grapple on the end of it. Within 20 minutes they made their first attempt to grab the line as DTNL approached the boat. DTNL tail-slapped and dove down, but the action of drawing the grapple across the dolphin caused the netting to snap! It's unclear if the grapple made significant contact with the calf, but most likely it was a combination of DTNL flinching, the netting starting to degrade, and contact with the grapple that freed DTNL. After the disentanglement, the CKDP moved in to collect behavioral data to make sure that DTNL was not too stressed out by being touched by the metal grapple pole. Calf and mom continued to surface normally and closely together, which is great. There seems to be some scarring that DTNL has from the netting, which they will likely carry forever, but think of the story they have to tell now!
We will continue to monitor this calf and mom to make sure that both animals are doing well. Many thanks to UF-MAR, SDRP, Tidewater Tours, and those that offered to help us out when our boat was down for maintenance. We are so grateful for your support! We continue to collect data for specific research questions, as well as baseline monitoring of the population, which are invaluable in making operations like this rescue possible. We will be looking for a new (used) boat within the next year, and we are asking for any financial help you can lend us. Your donations are tax-deductible and will go a long way in helping us achieve our long-term research goals by staying on the water. Remote disentanglement was conducted at the request of NOAA, the federal agency responsible for overseeing the stewardship of marine mammals in U.S. waters, under Permit No. 24359 issued to NOAA’s Marine Mammal Health and Stranding Response Program. Dolphin photography taken under MMPA permit 21938-03. May not be used or reproduced. By Jolinde Vlaeyen (PhD Candidate and Lab Manager)
Dolphin research is not all about fun and spending time collecting data on amazing dolphins, it also comes full of challenges, whether it is the behavior of the dolphins, the weather, or all the technicalities of planning a smooth sailing field season. This season especially has been intense with all of these things. One of the challenges that we deal with every season, is working with wild animals, who definitely have a mind of their own. As such, we usually need to adapt following what they do, which is what science is. However, this year the dolphins have been behaving quite different compared to otheryears; we see them very often in the same places, in very big groups (±30), and rarely in small groups. For this year’s data collection, this is rather frustrating, because to answer my research questions, small groups of dolphins are preferred. This way, we can more easily identify who vocalizes, who responds, and see on the camera and drone what is happening underwater. When the dolphins are in big groups, it is rather difficult to follow each individual. Why they are behaving differently this year is still something we’re trying to understand. Other researchers around Cedar Key mentioned that the turtles and the sharks are also behaving differently this year, so my bet is on climate change. Another challenge is the weather. Because we have a small boat and because dolphin spotting becomes harder once the waves become bigger, we can only go out on the water when the weather is near perfection: glassy waters, barely any swell, and no rain. Usually, the mornings in this area are as described, and the wind and/or rain pushes us back on land between 2-4pm. Yet, this year, rain and storms have been too common in the mornings, meaning we cannot go out, and a side effect of this is that the water has been murkier for longer periods, and therefore not easy to see the dolphins through it with the drone. The biggest challenge this year however has been technicalities. We are using a combination of a drone, so we are able to also see what they do from a different angle, as well as acoustic recordings. We have been fighting the drone this season, as it created a lot of issues for us, and some were fixable, others were not. We were able to buy a new one, but that one failed, and then tried another one which also had issues. That drone has been discontinued, so, we decided to buy a different brand, which is not waterproof, meaning we need to be extra careful catching it on the boat. Because we are a small NGO, these decisions need to be taken carefully, because we do not have the money to buy multiple drones at once. The other big issue has been the boat engine, which has had multiple different issues over this season. All of this means a lot of waiting, either for the drones and engine parts to be shipped, and then the fixing itself as well, resulting in days of less or no data collection. What has been amazing is the community feeling in and around Cedar Key. People have generously offered to lend us their boat; while we were fixing our engine at the dock, others have tried to help us out in the nicest ways; and our mechanic has been very helpful and fixing our boat issues fast as possible to get us back to doing research ASAP. I could not be more grateful for how everyone has been involved and helpful! Thanks to this, we have had a great run these past days, have finally been able to get the data we needed, and observed amazing – and maybe even new – behaviors in combination with some vocalizations. Let’s hope this field season ends on this high note! As much as this season has been the most challenging one just yet, this year for me has been the best year with the Cedar Key Dolphin Project, and I will be back next year! Hello! My name is Carrie, and I’m a CKDP field assistant this summer. I can’t believe we’re already almost halfway through the field season! In June, thunderstorms kept us off the water for more days than we would have liked, but we’ve still had many field days so far, and have encountered lots of dolphins on each of these days. Thankfully, we have plenty of data to keep us busy in the lab when we can’t go out! I’d love to give you an idea of what a day in the life of a field assistant is like on field days.
Our day starts at 6 AM, when Jolinde, our field manager, checks the weather radar, wind speed and swell height to make sure that conditions are good for spotting dolphins and staying safe on the boat. We then eat breakfast and pack up the equipment. The “data cooler” holds our DSLR camera, handheld video camera, GPS, datasheets, and lots of spare batteries. Another cooler holds our water bottles, sandwiches for lunch, and an abundance of snacks. We pack the coolers, along with acoustic and drone equipment, into the truck, and hook up the boat trailer. We then head to one of our launch locations. This year, we’ve launched from Cedar Key, the Waccasassa river, and Yankeetown. Jolinde chooses our launch location based on a combination of factors, including weather, expected boat traffic, and water depth. The coastal waters in this region are very shallow, so we are often boating in a meter or less of depth while navigating through obstacles like oyster bars and crab pots. When we get to the boat ramp, we load the equipment into the boat, prepare the boat for launch, and then we are off! While on the water, we’re constantly scanning the horizon for dolphin dorsal fins. We’ve been lucky to have several mornings lately where the water is so calm and glassy that it’s almost hard to tell where the water ends and the sky begins, and cotton-candy-like clouds are reflected onthe water’s surface. When the water is choppier, though, dorsal fins can be camouflaged by the waves. It’s also easy to confuse other animals for dolphin activity. Ospreys and pelicans plunge into the water, creating huge splashes. Cormorants bob on the surface. Fish cause ripples and splashes, and mullets launch themselves into the air. Boulder-like manatee snouts emerge to take a breath, while sea turtle heads poke out of the water like periscopes. When someone yells, “dolphins!” and we confirm that we have indeed spotted dolphins, we begin to approach them. Boaters are required by law to stay 50 yards away from dolphins, or to continue on their course if dolphins approach their boat. CKDP has a research permit that allows us to approach and follow dolphins at a closer distance. A flag on our boat lets other boaters know that we are performing dolphin research under a permit. When we arrive at the dolphins, we begin a “sighting,” where we collect photo-ID and behavioral data. Sightings can last from five minutes to an hour, and we usually have multiple sightings per day. During a sighting, one field assistant takes photos, with the goal of taking at least one clear photo of both sides of each dolphin’s dorsal fin. Individuals can be identified using the unique pattern of notches on their dorsal fins, caused by other dolphins, sharks, or boats. They can gain more notches throughout their lifetime, but they don’t lose them (unless they are overlapped by new notches). Their scars, which may fade over time, and dorsal fin shapes can also be helpful for identification. Dolphins with “clean” fins, who are usually calves, are the hardest to identify. Taking photos of dolphins can be extremely difficult, because they only surface for about a second and can stay underwater for long periods of time. Some dolphins are more “photogenic” than others, meaning that they tend to surface frequently alongside the boat, making the camera person’s job easy. Dolphins who don’t surface often or frequently change directions can be very challenging to photograph. Calves are especially difficult to capture, because they surface faster than adults. The more dolphins there are, the more difficult it is tokeep track of where they all are and which fins have already been photographed. We have had many chances to practice this so far, because we’ve frequently encountered large groups of 20 or more dolphins socializing. The camera person and boat driver work together to constantly position the boat in places where we can take photos at good angles. Another field assistant is in charge of filling out the datasheet. This is also a collaborative process; everyone on the boat discusses what we are seeing. We record information about the time, location and conditions of the sighting. We also estimate the number of dolphins present in the sighting, distinguishing between adults, calves, and young-of-the-year (YOYs), which are calves that were born this year. We estimate these age categories based on the size and behavior of the dolphins. Calves up to three years old are generally no more than half the size of adult dolphins, and YOYs are even smaller. YOYs don’t have fully developed motor skills, so they often stick their face out of the water when they surface to breathe, and they surface very quickly. YOYs also tend to swim in “baby position” alongside their mom. We also record information about how spread out the dolphins are from each other, whether there are subgroups within a larger group, when dolphins join or depart from the group, and how they are moving around the area. We record information about the activities that the dolphins are performing, which could be traveling, foraging, socializing, or resting. My favorite part of data collection is observing and recording specific foraging and social behaviors. Dolphins in this population have several different foraging techniques, including the cooperative driver-barrier (DB) foraging behavior that is unique to this population, as far as we know. We haven’t gotten a good look at DB yet this season (we are not specifically searching for it this year), but I hope I have a chance to witness it. We have seen other interesting foraging techniques, like “fast swimming,” where dolphins accelerate very fast to chase a fish, sometimes creating a rooster tail at the surface with their dorsal fin. We saw a dolphin named Eller toss a Crevalle Jack fish into the air several times, perhaps to stun it. We’ve seen several dolphins “bottom grubbing,” where they stick their snout into the mud and root around for fish. This requires them to kick their flukes at the surface to keep their body pointed downwards, creating huge splashes. We got to see Nail bottom-grubbing with her YOY watching nearby. My favorite foraging encounter so far was watching Knuckles perform “kerplunking,” where he forcefully dives into the water and holds his body in a curved position so that his tail slaps against the surface as he enters the water, presumably to stun fish. Although this behavior is seen in some other bottlenose dolphin populations, Knuckles is the only individual in this population who has been observed kerplunking. I would love to find out how these dolphins learn these behaviors and how this knowledge is transmitted throughout the population. Read more about the field assistants for this summer on the Our Team page! There are tourists lining up for another sunset dolphin cruise as I walk along the St. Pete Pier with my friends and (just like every person even remotely involved in marine mammal science) I feel slightly haughty. They don’t know these dolphins the way I do, I reason. I’ve spent hours, weeks, and months taking photographs, collecting acoustic data, and then matching up those fuzzy photographs of dolphin fins with 1,000 possible individuals and hunching over another audio clip saturated with the rapid fire click of snapping shrimp, straining to hear a faint whistle or burst of echolocation. I know these dolphins by name and I feel fiercely protective of them.
My name is Meher, I am from India, and the funny thing is, I used to be quite disdainful of dolphins. How they became the poster child of the ocean, I never quite understood. There were far worthier candidates in my opinion- and I carried this belief with me right up till the summer of 2021, when I worked with the Eckerd College Dolphin Project as a research assistant. Here I did the aforementioned data collection and analysis with two other interns and felt quite a kinship with the 1,000 local dolphins who are named and pictured in our extensive database. I remember the first time I listened to an acoustic recording and watched the spikes of colour in the spectrogram view. Alongside the echolocation I was seeing and listening to, something clicked. I had always been interested in marine mammal communication but that day it became a full blown passion and I decided that it was something I would be quite happy dedicating my life to studying. Now, I am a field assistant with the Cedar Key Dolphin Project and I am quickly becoming similarly attached to the dolphins in these waters. Soon, I hope to know them as well as I knew the ones in Boca Ciega Bay and continue to study them and their fascinating foraging methods which are, incredibly enough, unique to this population. I have graduated from college and aspire to do my masters degree in marine mammal bioacoustics, which my friends and mother find quite hilarious, considering they have dealt with my griping about the unearned love dolphins get from the public. So yes, dolphins are a pretty cool animal. The coolest in the ocean? Absolutely not. But perhaps I have judged the tourists a bit too harshly. I can hardly fault them for being captivated by an animal that is the quintessential symbol of the ocean, of wilderness, of exploration, and practically sentient in an otherworldly manner. The truth is, the incredible things that dolphins are capable of when encased by nothing but the wild ocean is so much more spectacular than anything we could ever teach them to do. ![]() School has started and our research team is back in school or at home! We are moving to the other phases of our yearly research, which focuses more on overall population monitoring. We asked our Field Assistants to reflect on what they've learned this summer, what they still want to know, and where they are going. Here are their responses. THANK YOU to their hard work this summer! Jaiere: Having the opportunity to be a full-time summer intern for the Cedar Key Dolphin Project was an amazing experience. Before coming to Florida for the summer, I had little experience regarding marine mammal science and field work. Over the past three months I have learned a substantial amount of information about bottlenose dolphin social and foraging behavior, the specific individuals residing in and around Cedar Key, and their habitats. I also learned a lot about other related topics to the project, including boating etiquette and logistics. I did not know that there could be in a single dolphin performing the driver-barrier technique; I thought the behavior was only performed in groups. I also did not know that there is potential for mothers to steal calves from other mothers! Throughout the season we had some technical difficulties, and it was rewarding learning about the boat itself, including names of different parts of the boat and learning the standard procedure of prepping the boat before going out onto the water. Due to the driver-barrier foraging technique being the dominant focus of the project, there were lots of questions asked, and some still needing to be answered after observing and analyzing the dolphins for the past three months. Therefore, I am still curious about the social structure associated with driver-barrier. I would be interested in learning more about individuals’ memory capacities and if there is an intentional hierarchical influence when determining who is driving, and what that entails. For example, do the dolphins have the capacity to remember and rank the success of driving of specific individuals over a long period of time? I also would be interested in learning more about mother/calf pairs, and the genetic influence, if any, of learning driver-barrier and other foraging techniques. Not only have I learned so much about marine mammal science, but I have also improved on quickly and efficiently applying new knowledge to real-life situations, which will definitely be of great service to me in my future educational endeavors. I plan to continue my education via a PhD focusing on interdisciplinary ecology, yearning to specifically focus on marine mammal behavior. Therefore, this internship gave me the opportunity to expand my knowledge in that area and open doors for more opportunities to continue to expand my knowledge on marine mammal behavior and other related topics. A big thanks to the Cedar Key Dolphin Project for an amazing summer! Faith: This field season I learned so much about dolphins and their unique behaviors. Before I came here, I didn’t know anything about role-specialization in foraging, and I didn’t know about the immense range of foraging strategies that dolphins utilize. After all, how many ways can there be to catch a fish? Apparently a lot! I also didn’t know how specialized different foraging tactics are based on the location. In addition to learning more about bottlenose dolphins as a species, I was able to get to know some of the dolphins that reside in the area. They really do have their own personalities! I would be curious to learn more about what other foraging strategies dolphins in this area utilize. DB is the only documented example of role specialization with a division of labor documented in any marine mammal, but why is role specialization so rare? What other species (cetaceans and otherwise) use role specialization? Is knowledge passed down primarily through matrilines or do dolphins learn from other non-related animals as well? How much do resident and transient animals mingle? Could they learn from residents and utilize the tactics they pick up elsewhere? After I finish my bachelor’s degree, I would like to enter a marine biology graduate program. This summer, I’ve gained some essential skills that will serve me well in my future studies. For example, I’ve become much better at photo ID since starting. This method is used in a variety of species, but especially in marine mammal studies. I’ve also learned a lot of field research skills this season. I learned just much goes into working safely on the water! It’s been so much fun to observe the dolphin’s interactions this summer. I’ve really learned a lot about cetaceans and field research. After hours and hours out on the water observing dolphins going about their daily lives, we start to become aware of the unique personalities of each individual dolphin. Naturally, the team develops favorites over time. Read below for everyone’s favorites and why they stand out to them! Stefanie: Tall Fin (TLFN) Tall Fin is the original driver identified in my Master’s and PhD work – without him, there would have been no Cedar Key Dolphin Project. He was seen in 22 sightings since 2001 and was a very successful driver. Sadly, he is no longer with us; his last sighting was in June of 2012. Suzanna: Knuckles (KSNC) Knuckles is a local around Cedar Key and has been known to the project since the beginning in 2001! Knuckles was biopsied in 2010 and confirmed male. He is still going strong after more than 20 years, during which the project has seen him in 38 sightings. His fin is one of the most iconic to me and it has hardly changed in all that time. Knuckles is a great reminder of the long lives dolphins can live and why it is so important to have long-term research projects to follow them throughout their lifetime in order to fully understand them. Becca: Oyster (ORWE) Oyster is an adult male local to Waccasassa and Withlacoochee Bay. He is a driver known for hanging out with his buddies, Lightning and Scallop, who often act as barriers in his foraging. Since only a dozen dolphins in our population are drivers, finding a driver to get data on Driver-barrier foraging can be like finding a needle in a haystack! Luckily for me, Oyster was reliable to find during the 2018 season when we were collecting data for my Master’s degree. A lot of the data for my thesis came from foraging performed by Oyster, so he will always be one of my favorite dolphins! Jaiere: Proudfoot (PRYR) PRYR is usually seen around Crystal River and Withlacoochee Bay. She is currently a mom of a YOY (Young Of the Year) and does a very good job raising her young. Experienced moms are very protective of their young, and one way to recognize this is when they place themselves in between their calf and the boats that are passing by throughout the bay to prevent their calves from injury. In their early life stages, YOYs and calves are still learning how to safely maneuver through the water when close to human activity. They can easily put themselves in danger if they aren’t properly protected by mom. Unfortunately, it is not uncommon for mothers to lose their calves within the calf’s first year of life; therefore, it is great to see moms like PRYR doing a good job protecting their babies and keeping them safe! Faith: Roo (ROWE)
ROWE is a 7 year old female dolphin first seen in our study site in Crystal River. She is very social and likes to play with other dolphins. This is actually how we know she’s female. While socializing, we are sometimes able to confirm the sex of the dolphin. ROWE was first seen in 2015 as a newborn calf (YOY as we call them). We didn’t see her again until 2018. By then, her dorsal fin had changed so much that we didn’t recognize her, so she was ID’d as a new animal. It wasn’t until this season that we realized who she was, based on a single scar that we managed to ID in common between her 2015 and 2022 photos! It’s very hard to match adults to their calf images years later because calf fins are usually very clean with no nicks or notches. Since we have tracked ROWE from her first year, we know exactly how old she is. We can learn about calf survival within our study area, and we will be able to follow the matriline once ROWE has calves of her own. Our field team recently completed 12 days in a row on the water. Everyone is a little bit exhausted and possibly a little bit sunburnt, but it was a great opportunity to collect important data on our local dolphins! We launched out of various points so that our survey efforts in those 12 days covered from Cedar Key down to Crystal River, about 30 miles of coastline. In that time, we were on the water for a total of 72 hours and had 54 dolphin encounters. The variation in the days can be drastic – on one day out, we had what we call “dolphin soup”, meaning we had hardly any breaks between sightings because there were dolphins everywhere as far as the eye could see! On another day, we were out for 5 hours and didn’t see a single dolphin! We were excited to find animals doing plenty of Driver-barrier foraging on several days, which is the focus of much of our research. We have seen 4 different groups doing DB foraging, collecting data on over 60 occurrences within the 12 days out, which is a great boost for our data this season! During the field season we use every opportunity to be on the water like this, no days off. The goal of the field season is to use these 12 weeks to collect as much data as possible for the year, so we must take advantage of good conditions when we have them. A storm coming through the gulf could easily keep us on shore for a week or more without collecting new data. A lot goes into making this decision. Every morning we check the wind speed, swell, tides, and radar. We continue to monitor the weather throughout the day for any storms that could potentially threaten lightning. While we want to collect as much data as possible, it is also important to be safe on the water, so if conditions are not in our favor, we are on shore working through data analysis in the lab. During lab days, most of our time involves doing Photo ID, meaning we sort and review the photos of the animals to correctly match fins. To do this, we must crop all pictures of each dolphin in each sighting, sometimes hundreds or even thousands of photos in a day. After cropping, we begin to match fins and organize them to determine the number of dolphins we saw within a sighting. We then match each individual to the existing collection of known animals in our Photo ID catalog. After completing each step, another team member does a double check to ensure data quality. During our lab days we are also kept busy entering the data collected into the database, plus processing recordings we take of underwater audio and video from the drone. While the still pictures allow us to identify each dolphin we encounter, the audio and drone video elements allow us to see and hear what happens under the water, which adds a whole new dimension since we are limited from the boat to only seeing the animals when they come up to the surface to breathe. With the audio and video we can collect, we can then answer research questions about foraging behaviors and social interactions between the animals in detail we have never been able to achieve previously.
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