The Cape Eleuthera Institute‘s Shark Research and Conservation Program recently initiated a novel project that aims to assess the spatial ecology and genetic diversity of three species of stingray in the waters surrounding Southern Eleuthera. It is hoped this research will provide much needed information on how species critical for ecosystem function occupy and share space as well as exploit fragmented seascapes for migrations and dispersal corridors.
Check out this amazing video from our friends at Behind the Mask to learn more about the stingray project!
The CEI Sustainable Fisheries team serving up lionfish fritters
Last weekend, Deep Creek hosted its annual Conch Fest. Unlike past years, Conch Fest was new and improved, focused on keeping Deep Creek green, clean, and pristine. Instead of using plastic containers to hand out food, all of the booths used recyclable materials. Single use plastics have become an issue for the oceans, as they are being consumed by and entangling marine organisms. This initiative in Deep Creek will hopefully spread to other settlements as well as other islands to reduce the plastics ending up in the oceans.
All ages were trying and loving lionfish fritters.
The Sustainable Fisheries Team of The Cape Eleuthera Institute set up their own booth at Conch Fest among the many others. While the live lionfish in the tank and the model of the aquaponics system attracted attention, the main attraction of the night was the lionfish fritters that the team handed out as samples for everyone to try. Although conch fritters are part of the traditional Bahamian cuisine, many Bahamians were both surprised and impressed by how tasty the lionfish fritters were! Most people came back for seconds and many requested a bag to take home with them.
The team also had lionfish jewelry on display and every pair or lionfish earrings were sold by the end of the night. Some people even made special orders for lionfish jewelry to be picked up at a later date.
The Minister of Education and Technology tried his first lionfish fritter and loved it!Conch Fest became Lionfish Fest!
Although conch fritters are a tasty treat, conch is an unsustainable fishery. Hopefully people will begin to cook lionfish fritters instead of conch fritters after tasting them at The Sustainable Fisheries booth this year. Next year the Sustainable Fisheries Team will be back at Conch Fest handing out lionfish fritters, and spreading the word on how pretty (as jewelry) and tasty lionfish can be!
Aaron Shultz, Director of the Cape Eleuthera Institute, has had his graduate work, under the direction of Dr. Cory Suski, highlighted in a report for the University of Illinois. Aaron was the 2011 recipient of the International Graduate Student Achievement Award. Please check out the link to the report here.
Hauling a seine net to collect bonefish for the CEI wet lab.by
Phoebe Shuylor, Emma Ward, and Rachael Alberts head to the creeks with Rachel and Grace from the sea turtle conservation team to do sea turtle abundance surveys.
Earlier this May, we welcomed the very FIRST group of female students to ever visit CEI from Tandem Friends School in Charlottesville, Virginia. This trip was planned as part of their school’s Emphasis Week, a time where students have an opportunity to travel and immerse themselves in learning experiences outside of the classroom, and they couldn’t have picked a better place! The group spent a week exploring the reefs and creeks around South Eleuthera, adapting to living sustainably, and doing things that they might not be able to anywhere else in the world!
Admiring a lionfish’s gape during a dissection with the sustainable fisheries team. Left to right- Kate Bollinger, Susan Wheeler, Emma Ward, Alanna Waldman, Rachael Alberts
Before Tandem Friends arrived, they had 3 things on their marine creature checklist- sharks, turtles, and sea stars. Guess what?! We managed to see all three! After getting settled into dorms, everyone came down to dip their feet into the Bahamian waters. Sure enough, the water was so calm and clear we spotted some sea stars from shore! We spent much of the first full day out helping the turtle conservation team do abundance surveys and came across a few turtles in their natural habitat. The next morning while snorkeling we came across the tiniest juvenile nurse shark hiding out in the wreck just off the beach! Continue reading →
Please follow this link to find updates on shark research by Florida State University graduate student Brendan Talwar, looking at post-release survivorship of deep sea sharks in Eleuthera, The Bahamas.
Brendan doing a dissection with students from Preston H Albury high schoolby
Nearshore habitat where juvenile bonefish have been found in groups of mojarra; this bit of shoreline is just outside of Rock Sound.
Petra Szekeres is a Master’s student in the Fish Ecology and Conservation Physiology Lab from Carleton University in Ottawa, Ontario, Canada. Her research topics focus on the behaviour, physiology and ecology of juvenile bonefish (Albula vulpes). To date there has been very little research conducted on juvenile bonefish; this is due to the difficulty in locating them. In the past two decades, exhaustive efforts along the Florida coastline have yielded few results with regard to juvenile bonefish capture.
In recent years, researchers have turned to the relatively pristine coastline of The Bahamas to find these elusive juveniles. Petra’s research will be building upon Christopher Haak’s research, which he conducted at CEI in 2013. Christopher is a PhD student at the University of Massachusetts, Amherst and has conducted thousands of seine hauls along the coastline of Eleuthera to locate areas juvenile bonefish inhabit. Now that some of these locations have been identified, Petra hopes to build on the foundation provided by Christopher. She will be collecting juvenile bonefish from the flats of southern Eleuthera and, for the first time, will be transporting live juvenile bonefish to the labs at CEI for further behavioural and physiological experiments.
A juvenile bonefish previously captured in southern Eleuthera.
Last week, over 30 members of the Deep Creek community gathered to conduct a second trash clean up. Led by Brittney Maxey, Educational Programs and Youth Action Island Summit Volunteer, and Georgie Burruss, Flats Ecology and Conservation Team intern, the team tackled the back road of Deep Creek.
The clean up team posing in front of one of the truckloads of trash collected.Students from the Deep Creek Primary School excited about keeping the trash off the roads.
Many of the participants were children from the Deep Creek Primary School. They worked tirelessly through the heat and mosquitos to fill two pick up truckloads of trash. The team saved all of the plastics, which will be used to make plastic art during the Plastic Youth Summit next weekend. Some pieces of trash were immediately repurposed, such as buckets and tires to be used as planters.
Deep Creek community members loading the truck with piles of trash.
Many of the children were eager to prevent trash from ending up on the ground in the future, coming up with ideas to mitigate littering in their community. They were thrilled to see how clean the road became, demonstrating all their hard work. Special thanks to the Cape Eleuthera Foundation in supporting the event and providing bags, gloves, and the pick up truck.
Last week The Island School hosted Parents’ Week. The week included an opportunity for parents to tour our campus, view a student art exhibit, parent-teacher meetings, and a day for students to show their families the island of Eleuthera.
The head of Island School addresses all of the visitors before presentations begin.
52 excited Island School students had the opportunity to present their semester long research projects to their parents, real world scientists from The Cape Eleuthera Institute, and The Island School faculty. Each research group had 10 minutes to present the culmination of their semester’s work including an introduction to their project, their hypotheses, a description of methods employed, results section, and conclusions of findings from their data. In addition, each group answered questions from curious parents and researchers about their topics.
A group shot of The Island School students, staff, CEI researchers, and visiting parents.
The parents learned about how plastic pollution can end up in a fish’s stomach, exciting new research focused on the deep-sea, the current status of important fisheries species in South Eleuthera and new research focused on the inland pond systems in Eleuthera. Guest commented on how impressed they were with The Island School students’ level of professionalism when presenting and their ability to share in-depth knowledge on their chosen research topic.
At the end of April, over 40 local community members, from Deep Creek and surrounding settlements, joined CEI’s gardening crew to help them collect seaweed and Casuarina needles for the garden. The seaweed and pine needles will be used as mulch to help protect plants from the hot weather. Seaweed also enriches the soil, acting as a natural fertilizer. It is a great use of local resources to help the garden continue to thrive!
Miss Sweeting and some local students take a dip in Red Bay after working on the DC Primary “Eating Garden”
After all of the containers were filled, it was time for a well deserved dip in the ocean and some swimming lessons. The primary school has expressed interest in future swimming lessons for the summer that CEI is currently trying to organize.
Huge thanks goes out to Luanette, Alexio, Britney, James, Grace, Georgie, Brendan, Adrian & Alannah, who all came out and helped support the Deep Creek Primary ‘Eating Garden’ trip to Red Bay.
As any angler will tell you, fresh fish is the best fish (Fig. 1)! Even non-anglers would insist that grilled wahoo, dockside yellowfin sashimi, or fried dolphinfish fingers are best when fresh from the sea. Knowing your fish is wild-caught means there are no questions about the quality of the fillet, or the fish’s diet – right?
Wahoo (top) and dolphinfish (bottom) are highly sought after sportfish, and are targeted for their fighting ability and table quality meat. These species, together with tunas and billfish, drive the economically valuable Bahamian sportfish economy. Photo credit: Erik KruthoffFig. 2: A sugar bag originating from the Dominican Republic. Within a few years this bag will break up into tiny microplastics, easily available for accidental consumption by marine fishes.
Each year, between 8-12 million tons of plastic end up in the world’s oceans, ranging in size from large pieces of floating trash or small (< 5mm) microplastics barely visible to the naked eye (Fig. 2). Some of this debris may result in the entanglement and death of marine mammals, or can be ingested by birds, sea turtles, and fish with severe health consequences. Even more concerning is that plastic debris acts as a magnet for persistent organic pollutants (POPs) such as PCBs or DDT – chemicals known to disrupt hormones or have carcinogenic effects in humans and animals. Thus, identifying whether plastic debris is consumed by recreationally and commercially important fish species should be of concern to any angler or sushi-lover.
Fig. 3: Island School students remove the stomach from a dolphinfish in preparation for a stomach dissection.
CEI researcher Zach Zuckerman, along with 6 Island School students, are investigating how marine debris – particularly plastic – is affecting the marine food web of The Bahamas. Zuckerman and his team have collected over 100 dolphinfish, wahoo, and yellowfin tuna carcasses from anglers at Cape Eleuthera Resort and Marina and Davis Harbour Marina, both located near CEI’s campus on South Eleuthera. The location at which each fish is captured is recorded, and the stomachs removed at CEI’s wetlab to be dissected in search of plastic debris. To identify microplastics, the team runs the contents of each fish’s stomach through a sieve, or a series of increasingly smaller screens, to separate prey and debris by size (Fig. 3).
Fig. 4: This large hair bead and piece of trash bag were discovered in a dolphinfish and wahoo (top), while these 14 small pieces of clear plastic film were discovered after sieving the stomach contents of a single yellowfin tuna.
Preliminary results indicate that 19% of wahoo, 23% of dolphinfish, and 20% of yellowfin tuna captured in Eleuthera’s waters contain plastic in their stomachs. Some of this is easily identifiable by eye such as pieces of plastic bag! Most of the debris, though, is less than 5mm in size and identifiable only through the sieving process such as the 14 small pieces of clear plastic found in a single yellowfin tuna (Fig. 4)!.
These preliminary results are quite startling; past gut content analysis of fish harvested near the Pacific Garbage Patch suggests much lower occurrences of plastic ingestion by recreational species, with only 2% of dolphinfish and no yellowfin tuna having been found with plastic in their stomachs. These researchers, though, only searched the gut by eye and did not sieve the stomach contents. Many anglers claim to have never seen plastic inside a fish, yet it would seem that most have never looked quite close enough!
Please follow this research as we increase our sample size, add new recreational species to the study, and quantify concentrations of free-floating plastic around Eleuthera by sampling the Exuma Sound with a plastic trawl (blog coming soon). Contact zachzuckerman@ceibahamas.org with questions or to support our research efforts.
by 
