Join REEF Online Communities


Remember to join REEF in our online communities on Facebook. Anyone can visit our Facebook page, even if you don't have a Facebook account. We also maintain a Facebook page specifically about the Lionfish program. If you do have a Facebook account, click the icon below to "like" us!

Outstanding in their Field: Featured REEF Field Station, Cape Eleuthera Institute


REEF is proud to partner with over 130 dive shops, dive clubs, individuals, and other organizations as REEF Field Stations.

The Cape Eleuthera Institute (CEI), a marine research facility, is located at the south end of Eleuthera in the Bahamas. Much like REEF, CEI realizes the importance of collaboration and encourages students, visitors, and community members alike to partake in ongoing scientific research with the overarching goal of marine conservation.

CEI works closely and shares facilities with the Island School, a semester abroad program for high-school students. All of the research programs that operate out of CEI teach a project-specific research class each semester to the students. REEF surveys have been successfully incorporated into a number of these projects. Most notably, the Patch Reef Ecology project uses REEF surveys for long-term monitoring of fish communities that are resident to the network of patch reefs in Rock Sound, the vast, watery, “backyard” of CEI. REEF surveys have been used to collect reef fish species and abundance data for this project for nearly a decade now! Students assisting with the data collection learn Caribbean reef fish ID skills and become well versed in the REEF Roving Diver Method. All data collected by students are contributed to the REEF database and available for use by others.

Most of the reefs that are surveyed by students are located in shallow waters adjacent to mangrove creek habitat. These reefs are small, isolated coral heads that provide important transitional habitat for many reef species that begin their life in mangroves and eventually head to deep water to reproduce. Due to their location and abundance, these reefs are easy to access and make great project sites for conducting research. In fact, Lad Akins, REEF’s Director of Special Projects, and Stephanie Green of Simon Frasier University, are conducting a long-term research project monitoring lionfish impacts on reef fish communities using a network of these shallow scattered patch reefs. Skylar Miller, employed by both REEF and CEI and based in Eleuthera, is responsible for monthly data collection for this important project.

REEF on Facebook - Become a Fan

Want to get the latest news and updates from REEF? Then be sure to check our the REEF Facebook Page. You don't have to be on Facebook to view the page, but if you do have a Facebook profile, be sure to "like" us so that all of the latest information about REEF's programs and events, our marine conservation work, and exclusive content and stories will go straight to your feed. It's also a great place for our members to post pictures, fish stories, and whatever is on their mind. We also maintain the REEF Invasive ionfish Program Facebook Page to keep you up-to-date on our current lionfish programs. 


Spaces Available on REEF Trips in 2013, Including Last Minute Opening on Fiji Trip

Snag the last spot on the Fiji REEF Trip and you'll spend a lovely 10 days aboard the Nai'a.

If you haven't yet booked your space on one of our 2013 REEF Field Surveys, don't delay. They are filling up fast. A last minute opening is available on the Fiji trip aboard the Nai'a liveaboard, May 11-21 - we just had a cancellation, so if you want to join REEF Founder Paul Humann, REEF Director of Science Christy Semmens, and a boat full of enthusiastic South Pacific fishwatchers, get in touch with our travel agent at Caradonna right away - 1-877-295-REEF (7333) or Final payment and paperwork are due by the end of next week so don't delay, this space won't last long. Space is for male or female, single room accommodations. All the Fiji details are here, we hope you can join us!

Other trips that still have a few spaces include: Southern Bahamas Lionfish Trip (May 18-25), Little Cayman with Paul Humann (July 13-20), Curacao Lionfish Trip (Aug 31-Sept 7), Grenada (Oct 5-12), Socorro Islands (Dec 3-12), and Cozumel (Dec 7-14). We have also added two new trips in British Columbia, one along the Sunshine Coast and a second trip to Barkley Sound. Visit for information and details on all of these great trips.

Honoring Our Golden Hamlet Club Members

No, it's not a club of Shakespearean enthusiasts! Rather it's a club of citizen scientist superstars - those REEF members who have conducted 1,000+ surveys in the REEF Volunteer Fish Survey Project. The very first Golden Hamlet member was Linda Baker, achieving the status in 2005. Today, there are are sixteen members of the Golden Hamlet Club. We recently created a plaque, now hanging at REEF HQ in Key Largo, with the names of our honored volunteer surveyors -- Lad Akins, Linda Baker, Judie Clee, Janet Eyre, Dave Grenda, Doug Harder, Lillian Kenney, Peter Leahy, Rob McCall, Franklin Neal, Mike Phelan, Bruce Purdy, Linda Ridley, Dee Scarr, Linda Schillinger, and Sheryl Shea. Congratulations to you all. Thanks to their dedication, and those of the 14,000 other volunteers who have participated in the Survey Project since its inception in 1993, we have generated the largest marine fish sightings database in the world. Who's going to be the next Golden Hamlet surveyor?

Grouper Moon Scientists Talk Live with School Children From Under the Waves

Grouper Moon researchers, Brice Semmens, Christy Pattengill-Semmens, and Steve Gittings, join educator, Todd Bohannon, for a live-from-the-field chat with Caymanian classrooms. They explained a typical research day and showed much of the research equipment used.
Grouper Moon Educator, Todd Bohannon, goes through a coral reef food web exercise that is part of the Grouper Education Project curriculum with school children at Little Cayman Primary School.
Grouper Moon scientists, Dr. Brice Semmens and Dr. Christy Pattengill-Semmens, conducting a live-from-the-field chat from the Nassau Grouper spawning aggregation site on Little Cayman to Caymanian classrooms. Brice answered questions from the students about grouper biology, spawning aggregations, and diving. Photo by Joshua Stewart.

It was a science lesson with a difference, broadcast live from beneath the waves with thousands of endangered fish in attendance. Earlier this month, Grouper Moon Project scientists, Dr. Brice Semmens from Scripps Institution of Oceanography, and Dr. Christy Pattengill-Semmens from REEF, hosted three live-from-the-field web chats with students from 18 classrooms at 13 schools in the Cayman Islands, The Bahamas, and Washington State (US). The first of the three web chats was broadcast from the Grouper Moon base of operations on Little Cayman, and featured scientists explaining the research objectives, day-to-day activities, and research equipment used during the project. The other two featured Brice diving and answering questions from the students, first on the Nassau Grouper spawning aggregation and then on the famous Blood Bay Wall. The webcasts are archived online here.

Now in its third year, the Grouper Education Program presents students with a multi-faceted view of Nassau Grouper, in which students create their own understanding of this important species. Key curricular concepts include: the historical role of Nassau Grouper in the Caribbean, its role as a top predator and its positive impact on local reef health, and the conservation challenges facing the species.

Brice Semmens, who presented the underwater webcasts, said students were excited to witness science in action. “As they explore the aggregation with me, the immediacy and reality of the experience really touches them. We are giving students their first diving experience – and it happens to be with thousands of huge, endangered reef fish.”

The work of the Grouper Moon research project – a collaboration between REEF and the Cayman Island Department of Environment has led to fishing restrictions at the aggregation sites and an increase in numbers of the endangered fish. To find out more, visit The Grouper Education Program is supported by a grant from the Disney Worldwide Conservation Fund. In-kind logistics and technical support is provided by Southern Cross Club, Little Cayman Beach Resort and Reef DiversCayman Airways, and LIME.

Putting It To Work: New Publication on Effectiveness of Lionfish Culling

A bag of culled lionfish in the Bahamas. Photo by Leah Neal.

REEF staff co-authored a new publication in the scientific journal PeerJ that features research findings from our Invasive Lionfish Research Program. The paper, titled "Setting the record straight on invasive lionfish control: Culling works", evaluates the effectiveness of lionfish removal efforts. Frequent culling of the invasive Indo-Pacific Lionfish throughout the Caribbean has been shown to cause a shift towards more wary and reclusive behavior by lionfish, which has prompted calls for halting culls. The paper addresses those concerns and reviews research conducted by REEF and other efforts. Culling successfully lowers lionfish numbers and has been shown to stabilize or even reverse declines in native prey fish. Partial culling is often as effective as complete local eradication, yet requires significantly less time and effort. Abandoning culling altogether would therefore be seriously misguided and a hindrance to conservation. The authors also offer suggestions for how to design removal programs that minimize behavioural changes and maximize culling success. The paper is available for online viewing here. You can find a complete listing of all publications that feature REEF's programs at

New La Jolla Canyon Fishinar Added to Schedule

Horn Shark, one of the many finds waiting REEF surveyors in La Jolla Canyon. Photo by Jonathan Lavan.

If you haven't participated in one of our free, educational webinars yet, you don't know what you are missing! Known as Fishinars, these hour-long sessions enable you to learn and have fun from the comfort of your living room. Check out the full schedule at And keep an eye on that space because we are always adding new ones. We recently added a new Fishinar scheduled for March 26th that will cover common fishes and invertebrates found in San Diego's La Jolla Canyon. The remaining schedule includes...

  • Hamlets! - Carlos and Allison Estape, March 3rd
  • In a Cavern, In a Canyon - Jonathan Lavan, March 26th
  • The Fishes of Fiji, Part 1 - Christy Pattengill-Semmens, April 6th
  • The Fishes of Fiji, Part 2 - Christy Pattengill-Semmens, April 9th
  • Jack Attack - Jonathan Lavan, April 14th
  • Snap On, Snap Off - Caribbean Snappers - Jonathan Lavan, May 21st
  • More to come!

Explore our Fishinar webpage, register for the sessions you like, and we'll see you online! You can also request viewings of archived Fishinars, a special perk for REEF members. No special software or microphone is required - just a computer with speakers and an internet connection. And did we mention they are FREE to REEF members!

Putting It To Work: Who's Using REEF Data, August 2015

Canary Rockfish, one of several species of concern in the evaluation of impact on jetty construction in Puget Sound, Washington. Photo by Janna Nichols.

Every month, scientists, government agencies, and other groups request raw data from REEF’s Fish Survey Project database. Here is a sampling of who has asked for REEF data recently and what they are using it for:

- A scientist from Bermuda Institute of Ocean Sciences (BIOS) requested REEF data to evaluate fish assemblages in Bermuda with regard to no-take reserves, comparing shallow vs. deep water habitats, and to evaluate the impact of invasive lionfish.

- A scientist from Washington State Department of Transportation requested REEF data to help evaluate the impacts of a proposed ferry terminal at Keystone Jetty on three species of protected rockfish.

- A graduate student from University of Miami requested REEF data from New Providence, Bahamas, to compare the measures of rugosity used in various research research methods and their ability to predict fish diversity and abundance.

A complete list of scientific publications featuring REEF programs and data can be found at

Fish sightings

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