Climate change is expected to cause a poleward shift of many temperate species, however, a better understanding of how temperature and species' life histories interact to produce observed adult range is often lacking. REEF data were featured in a new publication on this topic in the scientific publication, Journal of Experimental Marine Biology and Ecology. The publication's authors evaluated the hypothesis that juvenile thermal tolerance determines northern range in gray snapper (Lutjanus griseus), a species commonly caught as juveniles along the US Atlantic coast well north of their adult distribution, using a combined laboratory, field, and modeling approach. To evaluate the relationship between juvenile thermal tolerance criteria and adult distributions, the authors used the REEF database to quantify adult distribution. There was a strong correspondence between observations of adult gray snapper from the REEF database vs. latitude of the predicted survival of juveniles vs. latitude from their modeling analysis. The agreement between the laboratory-derived thermal tolerance measures, the spatial distribution of winter temperature, and the distribution of adult gray snapper support the hypothesis that the adult range of gray snapper is largely limited by the overwinter survival of juveniles. The authors stated that "understanding the interaction between physiology and range is important for forecasting the impacts of climate change on other species of fish where juvenile tolerances are critical in determining range, particularly in seasonal systems". The abstract of the paper and supporting figures can be viewed online here. Visit the REEF Publications page to see all of the scientific publications that have featured REEF data.
Have you made your plans to join us in Key Largo this summer for REEF Fest? Come celebrate 20 years of the REEF Volunteer Survey Project with 4 days of diving, learning, and parties. REEF Fest is planned for August 8-11. The schedule is packed with free workshops, diving opportunities, organized kayaking and snorkeling expeditions, and evening socials. Make your plans soon - hotel room blocks are filling up and dive boat space blocks are expiring soon. Complete details can be found online at: www.REEF.org/REEFFest2013
All REEF Fest events are open to the public, but pre-registration is requested for social events and workshops. Register using this online form. Tickets are required for the Saturday Dinner Cruise celebration. Purchase dinner cruise tickets online here. A quick look at the schedule can be seen here. Questions? Please send us an email at REEFHQ@REEF.org or call us at 305-852-0030. We look forward to seeing you all in August!
Why the celebration? In the summer of 1993, a group of pioneering volunteers conducted the first REEF fish surveys. Twenty years later, the Volunteer Survey Project and other REEF initiatives are leading the way as innovative and effective marine conservation programs. You are invited to join us this summer to celebrate 20 years of success.
Our 2014 Fishinar schedule is off to a great start! We've got lots of exciting, fun, and educational REEF Fishinars in store for you this year - featuring your favorite instructors and special guests alike.
Here's a quick glimpse at our upcoming topics:
REEF Fishinars are online webinars that you can view from your computer or iPad from the comfort of your own home. You don't even need a microphone or a webcam to participate - it's easy to participate!
REEF Fishinars are a free benefit of REEF membership, and did you know that REEF members can also access and view any of our archived Fishinars from previous years? A great way for new fish surveyors to learn, or for experienced fish surveyors to brush up on their ID skills.
Explore our Fishinar webpage, register for the sessions you like, and we'll see you online!
Next time you sign up for one of REEF’s Field Survey Trips, you’ll be greeted by a new voice. REEF has added a new member to the team; welcoming Jamie Dietrich as the new Trips Program and Communications Manager! As Jamie’s position title implies, her main responsibilities revolve around managing REEF’s Field Survey Trips Program. Each year, REEF leads 10-15 week long international Field Survey Trips to diving destinations across the world. Led by marine life experts, participants learn about the ocean while contributing to marine conservation as citizen scientists. Anyone can join REEF and likeminded divers for an itinerary of diving, seminars and fun! Jamie will also be managing communications and marketing efforts for all of REEF’s programs.
Jamie is a midwesterner at heart, but comes to the Keys from the Big Apple where she spent eight years after university working in Experiential Marketing; listing several Fortune 500 companies among her clients. These days, her clientele seem a bit fishy, as she’s traded in the boardroom and business suit for the beach and a wetsuit. Jamie recently became a certified Divemaster and Coral Reef Research Diver, and she spent the majority of the last year developing her conservation expertise on a volunteer marine mission in Fiji. After leaving her island home and returning to the States, she decided to make “island-time” a permanent staple in her life by relocating to the dive capital of the world. Jamie is excited to get her feet wet and continue to contribute towards meaningful work that aids in the protection of what she’s come to love most, the ocean.
Our 2015 Fishinar series is off to a great start. Be sure to join us for these free, educational webinars. The hour-long sessions let you learn and have fun from the comfort of your living room. Check out the full schedule at www.REEF.org/fishinars. And keep an eye on that space because we are always adding new ones. The first part of the year includes...
Explore our Fishinar webpage, register for the sessions you like, and we'll see you online! 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!
In response to requests from the scientific community, we are adding a new species to monitor on REEF surveys in the Tropical Western Atlantic (TWA) - Diadema antillarum, the Long-Spined Sea Urchin. In the early 1980s, a large die-off of Diadema occurred throughout the TWA. This has had a significant and long-lasting impact on coral reefs in the region because Diadema is (was) one of the primary grazers on Caribbean coral reefs (keeping rocks clear for baby corals to establish and keeping algae from overgrowing established corals). The disappearance of Diadema, coupled with overfishing of grazing fish species such as parrotfish and surgeonfish in some parts of the Caribbean along with other complicating factors, has resulted in many algae-dominated reefs. Despite 20+ years since the die-off, the once wide-spread and abundant species has failed to recover in most places in the Caribbean. There is a growing collective of researchers who are hoping to map the current distribution and abundance of Diadema. REEF will be assisting this effort by including Diadema in our TWA protocol. Surveyors will report whether they were actively looking for Diadema or not, and if they were, in what abundance category (S,F,M,A - same as for fish). We are currently working on the necessary training materials and additions to the database, and the new protocol will be in place soon.
Last year we shared an article about a new non-native fish, the Regal Demoiselle (Neopomacentrus cyanamos), showing up in the southwestern Gulf of Mexico. REEF surveyors in the Yucatan region of Mexico have since reported the species. And now a new publication co-authored by REEF staff Lad Akins documents that the species could become established and spread in the western Atlantic. The study incorporated a computer model to evaluate the the non-native species’ potential to impact native populations. On the basis of this work, it is foreseeable that the reefs presently harboring Regal Damselfish will likely see increased abundance of this damsel. Immediate attempts to eliminate the fish, therefore, should be focused in nearshore shallow waters spanning Veracruz to Frontera, Mexico. To find out more about this study, published last month in the journal Marine Biology, and to see a complete list of the 50+ scientific publications that have featured REEF data, visit www.REEF.org/db/publications.
The species is native to the Indo-Pacific and Red Sea. Similar in appearance to the native Brown Chromis, the Regal Damsel is distinguished by a yellow or white spot at the rear base of the dorsal fin, a dark spot behind the gill, and yellow rear margins of the fins and tail. In contrast, the native Brown Chromis is identified by dark margins on the tail and a dark spot at the base of the pectoral fin.
If you see this fish while doing a REEF survey, be sure to report it on your form in the unlisted fish section. Please also report detailed information on the sighting to REEF through the invasive species reporting page.
REEF members are at the heart of our grassroots marine conservation programs. Over 60,000 divers, snorkelers, students, and armchair naturalists stand behind our mission.
This month we highlight Adam Nardelli. Adam has been a REEF member since 2009, and he served as a REEF Intern in 2014. He has conducted 54 surveys and has participated in several of REEF's programs. Here’s what Adam had to say about REEF:
When and how did you first volunteer with REEF or become a REEF member?
I first learned about REEF as a PADI dive master when I became involved in doing group fish surveys and held a Great Annual Fish Count event at a local dive shop in Fort Lauderdale, FL. I eventually became a PADI instructor and started teaching my own fish identification courses for many of the local dive shops. In 2009, the spread of invasive lionfish started to reach the shores of south Florida, and as a dive professional and passionate steward of the local reefs, I quickly saw this issue as an important threat that needed to be understood and treated for management. I started a research project on the lionfish invasion while I studied a graduate program at Nova Southeastern University Oceanographic Center, and partnered with REEF and Lad Akins as a REEF Intern.
If you have been on a REEF Field Survey, where and what was your trip highlight?
My involvement with REEF has influenced most of my diving career well into shaping my view as a marine conservation steward and professional educator today. As a REEF Intern, I was fortunate to assist with several field surveys, and I would have to say that among all of them the single highlight was the ability to dive and learn from the staff members. Of course, my most memorable surveys were conducting lionfish transects with Lad, Stephanie, and the other REEF volunteers. There were as many long, cold, wet days as there were warm, sunny ones where we spent hours in the water surveying many of the diverse reef habitats around the Florida Keys. There were so many dive stories that we came away with, but I would have to say the most memorable was when we were approached by a huge sailfish chasing bait.
I also had the extraordinary experience of assisting with the Grouper Moon project in Little Cayman with Christy Pattengill-Semmens and Brice Semmens. This was an opportunity to help conduct research and promote continued protection for the endangered Nassau Grouper. It was an honor to learn from the sharp set of fish identification skills that Christy and Brice possess as expert field researchers. Swimming with large schools of these charismatic fish was a memorable dive adventure.
Lastly, just this past summer in 2015, I participated in the Roatan Field Survey group, which was led by Anna and Ned DeLoach. It was wonderful to dive with these two fish “aficionados” as we explored every coral crevice and sand hole in search of rare, cryptic and elusive creatures. It’s hard not to have fun with them around, as diving with these two really makes one appreciate how remarkable life under the ocean can be.
What inspires you to complete REEF surveys?
I am inspired to continue to do REEF surveys because it adds value to every dive I make. Not only am I contributing data for scientific endeavor, but it also enables me to appreciate the reef in a very real, detailed way. During each dive, I can account for every creature that I observe and take the time to watch their behavior. Diving becomes more like a visit with a friend than just being a passerby.
What is the most fascinating fish encounter you’ve experienced?
There are so many diverse and fascinating fish in the oceans that it would be hard to choose just one to top the list. However, during my most recent dives in Cozumel this year I encountered a perfectly cryptic Longlure Frogfish. When the dive master pointed to the coral head, I thought critically, “this guy thinks I’ve never seen a sponge before.” But then upon closer visual inspection, the pectoral fins and eyes began to take shape. With greater concealment than any octopus or scorpionfish I have encountered, this creature is truly unique.
Do you have any surveying, fishwatching, or identification tips for REEF members?
My best tip for fishwatching and being a good surveyor is to slow down and take your time to dive. Be still in the water and watch the fish school around you. Practice good buoyancy control as well. You will not only appreciate the reef more, but the fish will respond better towards your presence and allow you the close inspection you may need to get that positive key identification feature.
We are excited to share with you a once-in-a-lifetime opportunity to join REEF on a special expedition next spring. In partnershp with Florida International Univeristy (FIU), we have arranged for a small team of REEF members to experience another level of ocean exploration. Our team will venture beneath the waves and spend a night in the FIU Aquarius Reef Base, the world’s only undersea research laboratory. Deployed 60 feet beneath the surface in the Florida Keys National Marine Sanctuary, the Aquarius Reef Base is the world’s only undersea research station and is used to study the ocean, test and develop undersea technology, and train astronauts. Less than 1,500 people have ever ventured inside Reef Aquarius Base, and even fewer have spent the night in the underwater habitat.
The project dates are March 5 - 10, 2017, and includes 4 nights of lodging in Marriott Bayside Resort in Key Largo, 3 days of 2-tank dives with Quiescence Diving Services, a night spent in the Aquarius Reef Base, and classroom sessions with REEF and Aquarius staff each day. Note that the time spent in the Aquarius is not a saturation dive. The pressure inside Aquarius will be adjusted during the overnight stay, and participants will not be allowed to venture outside of the Habitat until departure from the Habitat. Cost to participate is $4,500. If you are interested in finding out more, visit the Aquarius Expedition website.
Six volunteer divers from the REEF Advanced Assessment Team (AAT) surveyed two sites off the Aquarius Reef Base in Key Largo, Florida, to assist the National Marine Sanctuaries Program (NMSP) with the science component of the Aquarius 2007 Mission: If Reefs Could Talk. Aquarius, the world's only undersea laboratory, is part of NOAA's National Undersea Research Program (NURP) and sits seven miles off shore at Conch Reef. A valuable resource and good neighbor to REEF HQ, Aquarius hosts scientists from around the world, from sponge chemists to astronauts, in innovative research and education.
The team included REEF Special Projects Manager Lad Akins and AAT members Dave Grenda, Brian Hufford, Lillian Kenney, Wayne Manning, and Mike Phelan. Twelve fish surveys were conducted at each of two research sites near Aquarius using the Roving Diver Technique (RDT). This year's data will be compared to surveys collected during a 2001 mission to assess change in resident fish populations. The team also assisted NMSP in documenting the occurrence of long-spined sea urchin (Diadema) at each site. Once abundant on Florida Keys coral reefs, herbivorous Diadema play an important role in keeping coral-stifling algae from overtaking the reef structure.
Click here to read more about the 2007 mission and the Aquarius habitat, including daily broadcasts and interviews with the REEF survey team.