Our staff members represent a wide array of backgrounds and experiences, but we all share a passion for ocean conservation, education, and citizen science. Learn more about us below.

Caroly Shumway, Ph.D.Martha KlitzkieChristy Pattengill-Semmens, Ph.D.

Bonnie BarnesAlli Candelmo, Ph.D. | Amy Lee | Janna Nichols | Brittany Parker | Ellie PlaceEllie Splain

Caroly Shumway, Ph.D. is REEF's Executive Director. Caroly joined REEF in August 2018, and has had a lifelong passion for connecting people to nature. Caroly was inspired to pursue conservation following her graduate work on electric fish in the rainforest streams of Panama. A third-generation oceanographer and fish geek, she has 27 years of government, nonprofit, and academic experience in marine and freshwater conservation, research, policy, and education. She has led fish biodiversity surveys along the Congo River, and dived in Lake Tanganyika to explore fish habitat and how it drives behavioral and brain evolution. Most recently, she was USAID's Senior Science Advisor to the Administrator and Chief Scientist. Her nonprofit experience includes being Executive Director of the Merrimack River Watershed Council, Director of Science for The Nature Conservancy in RI, Senior Scientist for Aquatic Biodiversity at the New England Aquarium, and founder/co-founder of a RI nonprofit that was awarded the Citizens of the Year Award by the New England Grassroots Environment Fund. Caroly is author/co-author of 30 publications, and was Chair of the Science and Data Working Group for the Atlantic Coastal Fish Habitat Partnership for 5 years. She was an AAAS Science, Engineering and Diplomacy Fellow, and an AAAS Overseas Fellow in USAID's regional South Pacific office in Fiji. Caroly holds a Bachelor of Arts in Biology from Wellesley College, a Ph.D. in marine biology from Scripps Institution of Oceanography, and was a postdoctoral research fellow at the Marine Biological Lab, Caltech, and Boston University.


Martha Klitzkie is REEF's Director of Operations. She joined the REEF team in 2011 and is responsible for overseeing a wide range of administrative functions. Her primary responsibilities are finance, office/facilities management, long-term planning, public relations, advancing conservation partnerships, and development for program expansion. She also oversees many of REEF’s extension programs based at Headquarters including Field Survey Trips, the REEF store, the Marine Conservation Internship Program, and the Explorers Education Program. Before settling down in the Florida Keys, she graduated from Warren Wilson College in North Carolina with a degree in Environmental Education, then went on to complete her Master’s in Educational Leadership and Administration at Argosy University in San Francisco. A diver at heart, her passion for the ocean is now mostly land based. She enjoys living vicariously through the amazing underwater adventures and research her position makes possible for REEF staff and members.


Christy Pattengill-Semmens, Ph.D. is REEF's Director of Science. Christy joined the REEF staff in 1998 and has been involved with REEF since its beginnings in Key Largo in 1993. Christy attended University of Southern California, where she earned her Bachelor of Science in Marine Sciences. She then conducted her dissertation research on fish assemblages at the Flower Garden Banks National Marine Sanctuary in the Gulf of Mexico, and received her Ph.D. from Texas A&M University. She is located in the West Coast REEF Office in San Diego, CA, where she also serves as a Visiting Scholar at Scripps Institution of Oceanography. Christy’s primary responsibilities at REEF are to coordinate with research and management communities on the use of REEF's Volunteer Fish Survey Project data, manage the REEF.org website, and coordinate REEF's data management team. Christy has overseen REEF's survey project expansion through the years, moving the project from its roots in the tropical western Atlantic to all coastal areas in North and Central America, Hawaii, to the South and Indo-Pacific, and and most recently the Eastern Atlantic and Mediterranean. Christy has led dozens of REEF Field Survey Trips. Christy and her husband, Brice Semmens, Ph.D., are the lead scientists for REEF’s Grouper Moon Project, studying one of the last and largest known spawning aggregations of the endangered Nassau Grouper.



Bonnie Barnes is REEF's Development Manager. Bonnie’s heart is in conservation, whether scuba diving, traipsing through a forest, or swooshing down a mountain, she loves and cares about our environment. Having started her first business at 17 in her hometown of Las Vegas, she eventually found her way to Florida where she owned a marketing company for another 14 years. After earning her MBA in 2006, she jumped head-first into the nonprofit world, leading a conservation organization in Jacksonville, Florida. As an avid diver, she trained to be a member on the Jacksonville Reef Research Team, and, as their Communications Officer, organized the first Artificial Reef conference in the early 90’s at Jacksonville University, in which REEF also participated. For her work in the offshore marine environment, Bonnie was awarded Florida’s Sea Grant Volunteer of the Year Award in 1991. With over 10 years in nonprofit management and cultivation of donors, Bonnie has found her way to the Florida Keys, where she can combine her love of diving with protection of our ocean life by actively engaging and inspiring the public to become involved.


Alli Candelmo, Ph.D. is REEF’s Invasive Species Program Coordinator. Alli joined the REEF team in 2018 and brings a wealth of experience to the organization. She attended Rutgers University where she obtained a Ph.D. in Ecology and Evolution. She has studied the population dynamics and management strategies of invasive lionfish in the Cayman Islands and Turks and Caicos, working with the local stakeholders and communities on both islands to help improve removal efforts and gain a better understanding of invasive lionfish. Her doctoral and postdoctoral research has examined a number of anthropogenic impacts on coastal ecosystems and early life history finfish, including; toxicants, ocean acidification and increased temperatures. She had the opportunity to collaborate with REEF on the Grouper Moon project in 2016 and 2017 examining survivorship of early life stages of Nassau and Tiger Grouper. She also has experience developing hands-on science activities. She is a strong advocate for conservation of coastal and marine ecosystems, regularly volunteering for local community programs.


Amy Lee is REEF’s Trips Program and Communications Manager. She attended the University of South Carolina where she earned two degrees, a Bachelor of Arts in Public Relations and a Bachelor of Science in Marine Science. She came to REEF as a Marine Conservation Intern in the fall of 2014, and was ecstatic to join the staff in April 2015. Before moving to Key Largo, Amy worked in the communications department at the South Carolina Bar, served as Student Public Relations Coordinator for the University of South Carolina’s Marine Science Program and studied coral reef ecology as a research assistant in Indonesia. Managing REEF’s Field Survey Trips Program allows Amy to merge her passions for diving, communication, science and travel. She organizes, plans and promotes trips to dive destinations throughout REEF’s nine survey regions and strives to implement effective communications into all aspects of REEF's programs. She frequently writes or edits content for REEF's online and print platforms, and has also had the amazing opportunity to write articles for Alert Diver magazine. Amy has surveyed throughout the Tropical Western Atlantic and Indo-Pacific, as well as the eastern Pacific, New England, and US west coast.


Janna Nichols is REEF's Citizen Science Program Manager, working extensively with the Volunteer Fish Survey Project database, training programs, and volunteer teams. She coordinates REEF's social media and was also the creator of the popular REEF Fishinar (webinar) program. Although Janna officially joined REEF staff in 2010, she has been conducting surveys, teaching Fish ID classes and giving REEF presentations as a volunteer since 2000, and is based in Vancouver, Washington. Janna is passionate about underwater photography and marine life identification, and many of her photos appear in west coast marine life ID guides, publications, and online resources. Her efforts were integral to the design and photography on REEF's many laminated fish identification cards. She has personally completed over 1000 REEF surveys and is an expert level REEF surveyor in the Pacific Coast and Tropical Western Atlantic regions. Janna is a PADI certified SCUBA instructor (retired), a past AAUS Scientific Diver and DSO, and the leader of REEF's Pacific Coast Advanced Assessment Team. In 2003, she received REEF's Volunteer of the Year award, in 2013 she received Dive News Network's Diver of the Year Award, and in 2015 she received the Golden Hamlet award from REEF.


Brittany Parker is REEF’s Education and Office Coordinator. She joined the team in May 2018. She grew up in Akron, Ohio, and discovered her passion for the ocean from family vacations. She followed her interests to Florida where she attended the University of Tampa and earned her Bachelors of Science in Marine Science and Biology. Although her academic background is in science, she greatly enjoys teaching others about the ocean, which lead her to her intial jobs after graduating college - first as a Marine Educator at SeaCamp Inc. in Big Pine Key, and then as Lead Environmental Educator at Sanibel Sea School, on Florida's west coast. Following this, Brittany returned to the Florida Keys, this time in Key Largo, to work at MarineLab as a Field Instructor, where she continued to foster her passion for marine science education. During her four years at MarineLab, she earned her Divemaster certification, USCG 50 ton captains license, and even an Aquanaut Certificate. In addition she served as MarineLab's Outreach Coordinator, implementing a variety of environmentally-focused events and intiatives including marine debris cleanups and field-based community education programs for Keys residents. Her interest in marine conservation and education brought her to REEF, where she is excited to continue her career in the marine science world.


Ellie Place is REEF's Conservation Coordinator of the Volunteer Fish Survey Project. She attended Brown University where she earned two degrees, a Bachelor of Arts in Geological Sciences and a Bachelor of Arts in Hispanic Studies. She first started at REEF as a Marine Conservation Intern in the fall of 2016, and enthusiastically joined the staff in the spring of 2017 after serving as an Education Leadership Intern. She grew up in Washington State, halfway between the Puget Sound and the North Cascades, where her passion for exploring and conserving the natural world lead her to REEF. Before moving to Key Largo, Ellie worked as a co-leader for kayaking expeditions in the San Juan Islands and as a lab assistant in an oceanography lab that studied sediment samples from the East China Sea to measure centennial scale climate change. Ellie’s passion for sharing conservation efforts support her role with the Volunteer Fish Survey Project and in expanding its many components. Ellie is a member of REEF’s Advanced Assessment Team for the Tropical Western Atlantic, but has also enjoyed diving in the Pacific Northwest.


Ellie Splain is REEF's Education Program Manager. She first came to REEF as a Marine Conservation Intern in the summer of 2013. Following the internship she returned back to the University of Illinois, where she graduated with a Bachelor of Science in Fish and Wildlife Conservation. After finishing her degree, Ellie returned to the Florida Keys and continued to play an active role in REEF, conducting fish surveys and assisting with invasive lionfish research. Ellie enthusiastically joined REEF as a full time staff member in February 2015. Years of experience teaching at summer camps, parks, and educational facilities support her role as REEF’s Education Program Manager. Ellie is responsible for the Explorers Education Program at REEF Headquarters, where she is expanding the program to reach more student and adult groups. Ellie also launched the Ocean Explorers Summer Camp, a program that inspires young marine enthusiasts and enlists the next generation of citizen scientists and REEF members. Ellie is also a member of REEF’s Advanced Assessment Team for the Tropical Western Atlantic and is an active volunteer with many other conservation organization’s in the Florida Keys.