Grouper Moon 2013 - Protecting a Caribbean Icon

A lone Nassau Grouper in front of 4,000 others at the spawning aggregation site on Little Cayman. Photo by Josh Stewart.
Cayman Prep student showing off her Nassau Grouper drawing, one of several activities through the Grouper Education Program.
Christy and Brice doing a live-video feed from the spawning aggregation to classrooms. Students ask Brice questions in real time and get to virtually dive on the site! Photo by Josh Stewart.

REEF scientists and volunteers just wrapped up another season of the Grouper Moon Project, a collaborative research effort with the Cayman Islands Department of the Environment (CIDOE). Our research focuses on Little Cayman, which has one of the largest (and one of just a few) known spawning aggregations of Nassau Grouper in the Caribbean. Over 4,000 grouper amass in one location for 7-10 days following winter full moons. Since 2002, REEF and our partners at CIDOE, Scripps Institution of Oceanography, and Oregon State University have used a variety of research techniques from diver surveys to state-of-the-art technology to study this amazing natural phenomenon. The research has yielded ground-breaking results that have led to improved conservation for the species in the Cayman Islands. 2013 was a very exiting year - we continued to document increases in the number of fish at the site and there were many "teenagers" (6-8 year olds, coming to spawn for the first time). The number of spawning bursts and the number of nights spawning occured has increased. Watch this short video to see the action. We continued our education efforts. With support from the Disney Wildlife Conservation Fund, we were able to expand the program to more classrooms at Cayman Prep and High School on Grand Cayman and initiated the program at Spot Bay Primary School on Cayman Brac. The Grouper Education Project introduces children to the ecological, economic, and cultural role that Nassau Grouper have in the Cayman Islands and wider Caribbean. An integrated marine science curriculum has been developed with a focus on two age groups (Grade 4 and Grade 11), that includes a series of classroom lessons and live from the field web sessions, including a live-feed from 80 feet on the aggregation. Seattle-based educator, Todd Bohannon, leads up this effort.

To learn more about the Grouper Moon Project, watch the Changing Seas episode online here.

To see many more photos, videos, and stories from this year's work, check out the REEF Facebook page here.

Many Thanks! The Grouper Moon Project wouldn’t be possible without the dedication, passion, and financial support from many individuals, Cayman Island businesses, and foundations. It truly takes a village to pull off this conservation research project. In 2013, we especially appreciate the continued generous logistical support provided by Peter Hillenbrand, local lodging and dive operators Reef Divers & Little Cayman Beach Resort and the Southern Cross Club, and Brac Reef Resort. Funding from the Disney Worldwide Conservation Fund supported field efforts and the Grouper Education Program. LIME Cayman Islands has provided support for the live-video feeds for the Grouper Education Project since 2012. Pegasus Thrusters supported the project in 2013 through the donation of Diver Propulsion Vehicles. It's impossible to list everyone here - please visit the Grouper Moon page to see the full list - http://www.REEF.org//groupermoonproject. If you would like to support this important marine conservation program, please donate to REEF - https://www.reef.org/contribute.

Design by Joanne Kidd, development by Ben Weintraub