As all of you Caribbean fiswatchers know, hamlets are a group of colourful coral reef fish found throughout the Caribbean. Ten species of hamlet have been discovered and each can be easily recognized by its own distinct colour pattern. In some areas, as many as seven varieties can be found on a single reef. However, most hamlet species are only found at specific locations. The blue hamlet, for example, is found only in the Florida region. How these very different looking, yet very closely related species came to be has been a a subject of debate among scientists. Data collected by divers and snorkelers as part of the REEF Volunteer Fish Survey Project were recently used in a large analysis to better understand the patterns of evolution in these and other marine fishes. Dr. Ben Holt from University of East Anglia (UK) and his colleagues Simon Fraser University in Canada recently published their findings in the scientific journal Global Ecology and Biogeography.
It had previously been believed that these different species of hamlets evolved because of geographical separation. For example, it was thought that falling sea levels in the past could have divided the original species. Then, when levels increased, the differently evolved species were thrown back together. The new study found little evidence for this theory and instead suggests that hamlet color varieties could have evolved regardless of any physical separation. Using thousands of underwater surveys made by REEF volunteers, the researchers analysed distributions of the ten different hamlet species. They found that even widespread hamlet species are not found everywhere, and identified high density hotspots for each species. Because different species hotspots overlap and many species have more than one hotspot, the results do not support the theory that hamlets originated independently when they were geographically separated in the past. The research also showed how ecological factors, such as competition for food or habitat, may influence how different hamlet species co-exist.
"Our findings suggest that ecology may better explain the evolution of hamlets than geographical separation," said lead author Dr Ben Holt of UEA's School of Biological Sciences. "Many scientists believe hamlets are beginning to evolve into a new species and this latest discovery will shed light on this process." The full citation of the paper is Holt, B., I Cote, and B Emerson (2010). Signatures of speciation? Distribution and diversity of Hypoplectrus (Teleostei: Serranidae) colour morphotypes. Global Ecology and Biogeography (published online 23 April 2010).
To see this and other scientific papers that have been published using REEF data, check out the Publications page on the REEF.org website here.
Attention Tropical Western Atlantic fishwatchers -- the Neon Goby has been split into two species. The original Neon Goby, Elactinus oceanops, retains the common name and is geographically known only from So. Florida and Flower Gardens and Alacran reefs in the Gulf of Mexico. This goby can be distinguished by the bright neon blue stripe from snout to tail with a sharp blue-against-black edge.
The Caribbean Neon Goby (new common name), Elactinus lobeli, is known only from the Bay of Honduras, from Xcalak in Yucatan through Belize to the Bay Islands of Honduras, including offshore reefs. It can be distinguished by the pale blue or grey borders along the bright blue neon stripe running from snout to tail. Genetic analyses indicate that the two species have been separated for about 800,000 years.
REEF recently awarded Nancy Perez the 2010 Key Largo Community Volunteer Award. Nancy joined during REEF's inaugural year in 1993! She lives in the Florida Keys and has become an instrumental volunteer at REEF Headquarters in Key Largo. Nancy helps connect REEF with the local community through planning special events, including holiday parties, the James E. Lockwood REEF Headquarters dedication, and participation at local festivals. Nancy has also encouraged other locals to volunteer at REEF HQ and is always available to assist REEF staff on projects. Nancy's biggest impact has been through her role coordinating the Fish and Friends gatherings at REEF HQ. During these popular monthly meetings, which started in 2009, REEF supporters come together to socialize with fellow fish followers and listen to presentations about various marine species and habitats. The success of this event would not be possible without the hard work and time that Nancy puts in to finding speakers, getting volunteer hosts, coordinating the snacks and beverages, and always wearing a smile. Her tireless dedication to the REEF Fish and Friends event is admired by all. In her spare time, Nancy is out diving and completing REEF surveys! On behalf of the REEF Staff and Board of Trustees, we extend Nancy our deepest appreciation.
REEF members are at the heart of our grassroots marine conservation programs. Over 43,000 divers, snorkelers, students, and armchair naturalists stand behind our mission.
This month we highlight Dave Grenda (REEF member since 1998). After retiring from the military, he became a volunteer, divemaster, and an American Academy Of Underwater Sciences Scientific Diver at the Florida Aquarium in Tampa. Dave has conducted over 1,800 REEF surveys and is a Level 5 Expert surveyor. In addition to his own diving activities, Dave has participated in numerous research projects, including numerous REEF Advanced Assessment Team trips, Nassau grouper tagging in the Caymans, mutton snapper spawning in the Dry Tortugas, piscivore cooperative hunting research off Georgia (see "Putting it to Work"), queen conch population surveys in St. Croix, Aquarius undersea laboratory support in Key Largo, Tampa Bay Civil War shipwreck archeology, Paleolithic Indian archeology in North Port Florida, coral spawning in the Flower Gardens and Key Largo, Gulf Red Tide recovery, reef health assessments with the Living Oceans Foundation in the Caribbean, point/transect fish surveys throughout the Keys, and collecting exhibit animals for aquaria educational displays. Here's what Dave had to say about REEF:
When and how did you first hear about REEF? What is your favorite part about being a REEF member? I became involved with REEF after attending a fish ID lecture at the Florida Aquarium given by John Pitcarin - a founding REEF staff member. Being a REEF member has opened an entirely new world to me. The fish identification skills I've acquired through REEF has opened many doors for me as a citizen scientist. I'm extremely grateful for the many opportunities I've been provided through my association with REEF. Attaining Expert survey level has enabled me to join numerous research efforts with NOAA, National Park Service, Universities, Aquaria, and of course REEF itself. Working with marine scientists has been very interesting and those scientists have relied extensively on my fish identification skills that I've acquired during my REEF survey diving. While these scientists knew their particular specialty very well, they were often rusty in general fish identification. I quickly became a valued member of their team, treated as an equal colleague, and sought after for future projects.
In your opinion, what is the most important aspect of REEFís projects and programs? Doing REEF surveys not only provides valuable data, it's a great way of "giving back" (helping the aquatic environment), but it also greatly enhances your diving enjoyment. What I like about the REEF survey method is that it can adapt to any type of dive site - regardless of visibility, current, depth, etc. While other divers might be disappointed at the visibility, or the failure to see certain animals (like sharks, turtles, eels, etc.), I will have had a great dive doing a REEF survey. I see more during my dives by doing surveys and I get excited at a rare sighting and adding a new species to my lifelist.
Do you have any surveying, fishwatching, or identification tips for REEF members? What new fish ID'ers need to do is SLOW down. It's much easier to see the movement of a cryptic fish, or just about any fish, when you aren't moving. If conditions allow, I'll start my dive by hovering in the water column. I'll write down every species I see as I slowly make a complete turn - looking in the water column as well as on the bottom below. To get the most species from each dive site, I'll try to hit as many different environments as possible (sand, rubble, top/middle/bottom of the reef, shallow/deep, etc.). Bring a flashlight to look into crevices and every tube sponge. It also helps to use the REEF database to know what species have been previously sighted at your dive destination. Before the dive you can acquaint yourself with the descriptions of new fish you might see there, so if you do come across that new fish, you'll already know how to identify it. Chance favors the prepared mind. You should also jump at the chance to dive with other fish watching experts. I've learned so much and so quickly by diving with other REEF folks - gaining confidence, learning new techniques, and just sharing wonderful fish stories.
REEF Field Surveys trips that are a great introduction to fish identification for novice fishwatchers, and a fun way for experienced surveyors to build their life list while interacting with fellow fishwatchers. REEF coordinates Field Surveys to locations throughout our project regions each year. These projects are led by REEF staff and other REEF instructors and feature daily classroom seminars and a full diving schedule. Many of the 2012 REEF Field Survey trips are sold out, but there are still a few spots on the lionfish research expedition to Dominica, the fish behavior trip to Bermuda, and a liveaboard through the British Virgin Islands. We are also working on an exciting lineup for the 2013 schedule. We will announce the full lineup and details soon. Destinations include Fiji, Curacao, Turks and Caicos, Utila, and the Soccoro Islands. Get in touch with our travel experts at Caradonna to find out more and to book your space - 1-877-295-7333 (REEF), or via e-mail REEF@caradonna.com. The full schedule and more information can be found online at http://www.REEF.org/trips.
To celebrate 20 years of ocean conservation and education through the Volunteer Survey Project, and to honor our members for making these successes possible, REEF will be hosting a fun-filled weekend of diving, learning, and parties -- August 8-11, 2013, in Key Largo. Please mark your calendar and save the date! More details will be announced in the coming months. The first REEF surveys were conducted during a Field Survey trip in Key Largo, Florida, in the summer of 1993. Led by co-Founders, Paul Humann and Ned DeLoach, as well as founding Executive Director, Lad Akins, a total of thirteen volunteers conducted 102 surveys. Almost 20 years later, the REEF Volunteer Fish Survey Project has grown to become the largest ocean citizen science program. Approximately 14,000 volunteer divers and snorkelers have conducted over 165,000 surveys at 12,000 sites throughout the world. These data have been used by scientists, government agencies, and other conservation groups, and have been featured in dozens of scientific publications. Our marine conservation programs, education initiatives, and research efforts are backed by over 50,000 REEF members. We hope you will join us next August to celebrate 20 years of education, surveys, fish stories, and friendships!
The ocean is a muse to many artists. REEF members have also felt that tug of creativity and sent us amazing pictures as well as commentaries from their travels. Being a part of REEF means sharing the underwater world that we all love which is why we'll be sharing with you the interesting pictures and experiences our members send us. We'd like to do this monthly, but need you to participate so email us your fun or interesting Fish Tales so we can publish them in the next REEF-in-Brief! Who knows . . . we may even choose your unique picture/story for placement in our annual news letter soon to be printed for 2008. Please email them to firstname.lastname@example.org titled ENews.
We also would like to share with our members a place to publish and read YOUR stories about ocean issues.
"Sea Stories, an online journal of creative writing and art about the world's oceans sponsored by Blue Ocean Institute, features contributions by ocean-lovers from all backgrounds and walks of life - writers, artists, educators, students, scientists, fishers, conservationists, explorers, and just regular people. Educators are invited to use Sea Stories in the classroom or as a publishing opportunity for yourself or your students. Join us in celebrating all things oceanic!"
If you have a fun or interesting Fish Tales you would like to share with REEF and its 30,000 members, please email them to email@example.com titled ENews. We'd love to publish your experiences in the next REEF-in-Brief!
One of the most exciting features of the new REEF.org Website is the ability to login to the site and gain access to a variety of useful features, including your personal data summary report and survey log, your membership profile, ability to edit your contact information, tracking orders made through the online REEF store, and posting privileges to the discussion forums. To become a registered REEF.org user, go to the Register link on the left hand menu. You will need your REEF member number, last name and email address. You will be asked to create a user name and will then be sent an email with instructions on completing the registration process. If you forgot your member number, check out our REEF.org Web Tip in this e-news issue to find out how to look up your member number. Once you are logged in to the REEF Website, your personalized content will be accessible through a menu on the left hand side.
An important tip – the email and last name that you provide must match what is currently in your REEF membership profile. The email where you receive REEF-in-Brief is the email that is on file. If you encounter an error, please drop us an email with your current contact information.
As part of REEF;s ongoing research partnership studying
lionfish in the tropical Atlantic, we have 2 rooms left (up to 4 people) for
our May 11-17 project in Nassau.
Join REEF’s Lad Akins, marine life authors, filmmakers
and naturalists Ned and Anna DeLoach, Chris Flook - Collector of Specimens for the Bermuda Zoo and Aquarium, Andy
Dehart – General Manager of the National Aquarium in Washington DC, and other REEF volunteers for a week of
lionfish research, collection, tagging, surveying and observation. The project cost is $999.92 pp dbl occ. and
includes accommodations at the Wyndham Cable Beach resort, daily two tank
dives, tanks & wts, and lively presentations and interactions with
knowledgeable reef experts. To reserve
space now, call Pam Christman at Stuart Cove’s Dive Bahamas at (800) 879-9832
or for more project information call Lad Akins at (305) 942-7333. Hope to see you there!
As Audrey reported in the previous article, REEF Field Surveys are more than just your average dive vacation. Not only are you joined by like-minded divers and led by dynamic experts in marine life, but the trips often include opportunities to learn more about a local culture and even participate in conservation activities or research. We already have several great destinations lined up for 2009 and are finalizing several more trips for the calendar. These trips run the gambit from traditional Field Surveys with fish ID seminars straight through to scientific research projects and they are all located at some of the best dive destinations with some of the best resorts and dive operators. Visit the REEF Trips Schedule page for details. In addition, here is a sneak peak at two special projects that REEF staff and Board members will be offering in 2009.
First is a Lionfish Trip to the Turks and Caicos next Spring with REEF Director of Special Projects Lad Akins. A lot has been happening with this pivotal environmental situation, and REEF has been at the forefront, gathering data, coordinating research and educating the public on the issues. We hope all of you saw the NBC Nightly News segment featuring the important work that is being done by REEF on the invasion of Indo-Pacific Lionfish in Atlantic waters. The REEF Lionfish Trip will have participants working as part of a team, to search for, collect and tag lionfish specimens, document abundance of native reef fish at lionfish sites, help collect samples of lionfish for dissection to determine prey and reproduction, and learn about invasive species issues. This is cutting edge research and your help is needed to aid in gathering information to learn more about the problem and to work towards finding a solution.
Next, how about a Shark Diving Week with our very own REEF Board of Trustees Member, Director of Biological Programs for the National Aquarium and now the Discovery Channel Shark Week Consultant, Andy Dehart? Andy is becoming quite well known for his expertise and passion for sharks and our REEF Shark Week will certainly be a trip that fills quickly. Destination and program details coming soon so stay tuned.
So, the REEF Travel Tip for this month is - start planing now! The 2009 REEF Trips will fill up quickly and once they are filled that ship has sailed. By booking early and planning ahead you will be able to participate in exactly which REEF Trip you want for 2009 and take a Dive Vacation that Counts! REEF’s partnership with Caradonna allows you the ability to book your airfare at the same time you book your trip for (as we like to call it) one-stoplight-parrotfish shopping.
Please check out the REEF Trips section of our website for details. And keep checking back as we will have the rest of the trips up in the next couple of weeks with more details on all of our 2009 REEF Trips being posted.
Call 1-877-295-7333 (REEF) or e-mail REEF@caradonna.com for trip availability and information – some trips are already starting to fill up. Don’t let the 2009 REEF Trip Ship sail without you!!!