Sevengill Shark Sightings on the Rise in Southern California

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The majestic broadnose sevengill shark. Photo by Scott McGee - underpressurephoto.com

Active REEF surveyor, Mike Bear, and other San Diego area divers started noticing something unexpected earlier this year -- increasing numbers of encounters with the Bluntnose Sevengill Shark, Notorynchus cepedianus, also known as the Broadnose Sevengill shark. Knowing first hand the impact that divers and snorkelers can have as citizen scientists, Mike set up a website - http://sevengillsharksightings.org -- to serve as a central repository for photographic, videographic and written data on these magnificent creatures. Submissions on the site will allow REEF surveyors who are lucky enough to encounter this prehistoric species to provide additional information and images beyond the sighting and abundance information recorded as part of their REEF survey. It will also enable divers who were not doing a REEF survey to report their encounter. One of the most interesting parts of the website will be the development of an informal photographic database of Sevengill sightings that will facilitate the comparison of photographs and the potential identification of individual sharks using the unique pattern of dark "freckles" on the backs of each shark, similar to the patterns seen on whale sharks. To date, six REEF surveys in San Diego have reported a Sevengill (click here to see the sightings report).

Second Annual Bahamas Lionfish Derby Brings in 941 Lionfish

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Zane Carney, from Team Meander, captured the largest lionfish of the day - a whopping 43.4cm in length (approx. 19 in) and weighing about 4 pounds!
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Preparing the lionfish for the cookout.
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Derby First Place Team, White Roach.

The second annual Abaco Lionfish Derby, held at Green Turtle Cay, Bahamas, on Saturday June 19th, was a huge success. Teams on twenty-one boats from Florida and the Bahamas enjoyed perfect weather and conditions while collecting a grand total of 941 lionfish. Over $5,000 in cash was awarded to the winning teams for the most, biggest, and smallest lionfish. This event, held in the Bahamas and sanctioned by the Bahamas Department of Marine Resources, is one of many REEF efforts to cull invasive lionfish populations and raise awareness about the issue.

The award for most lionfish collected in the one-day event went to team White Roach from Abaco. Repeat winners, the trio of skilled lionfish collectors significantly exceeded their tally from 289 lionfish last year to a whopping 345 this year. This number is both astonishing and alarming when you consider how dense lionfish populations must be for three people to have the ability to collect over 300 lionfish in the span of a single day.

Team Meander from Jacksonville, FL, clenched 1st, 2nd, and 3rd place for largest lionfish collected. Zane Carney captured the largest lionfish ever recorded in the Abacos, which measured just 2cm short of the national record. Zane told Derby organizers that he found a hole outside the main barrier reef off of No Name Cay in 45 feet of water that was full of very large lionfish. He used a pole spear to bag the winning fish, which was 43.4 cm in length (roughly 19 inches long) and weighed approximately 4 pounds.

Lad Akins, REEF’s Director of Operations, and Stephanie Green, a collaborative research partner from Simon Fraser University, recorded valuable data during the event, including lionfish sizes, stomach contents, and sex for many of the lionfish before they were filleted and cooked by the Green Turtle Club. Observers and participants, many of whom had never tried lionfish, found the fish quite tasty, resembling hogfish or grouper. This year, Tropic Seafood Limited of Nassau also arranged to purchase some of the larger fillets of lionfish for distribution in local markets. According to Derby organizer, Bobbie Lindsay, “Tropic’s offer to purchase lionfish is an exciting development, because creating a market for lionfish is the best way to control the population of this invasive fish.”

Thanks to the Derby co-sponsors, Green Turtle Club, and Brendal’s Dive Center, who offered special discounts for Derby participants. REEF also extends sincere gratitude to all of the participants, and especially Bobbie Lindsay, an active REEF member and volunteer who took the lead in organizing the Derby making it a successful event again this year. Next year’s Derby is set for June 24-25, 2011. For full results and pictures go to www.lionfishderby.com.

Summary of Team Results -

  • Most Lionfish: 1st Place: White Roach 2nd Place: Goofin’ Off 3rd Place: Cajun Bahamas
  • Largest Lionfish: 1st, 2nd, and 3rd Place: Meander
  • Smallest Lionfish: 1st and 2nd Place: Goofin’ Off 3rd Place: All Play
  • Outstanding in their Field: Featured REEF Field Station, Horizon Divers

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

    This month we feature Horizon Divers in Key Largo, FL. Just down the street from REEF Headquarters, they have been a long-time supporter of REEF’s efforts. One of their hallmark efforts is supporting the REEF Marine Conservation Internship Program by allowing REEF Interns to come out on the boat for free and conduct fish surveys. Horizon dive instructor, Mike Ryan, says, “It’s a lot of fun having them out on the boat regularly and getting to know them. When other divers see their slates and see them tallying fish underwater, they become curious and often ask the interns what they are doing and why count fish. The interns are great because they have the ability to inspire divers to learn fish names and start surveying which, in turn, brings us more business!” Mike also gets into REEF surveying himself. When asked about his best lifetime sightings, he quickly said they were a Manta Ray at one of their popular dive sites and a resident Longlure Frogfish that was regularly surveyed on the Speigel Grove for nearly a two-year timespan.

    Horizon Divers regularly teaches fish identification specialty courses and always encourages their students to become REEF surveyors. The shop is also very active in REEF’s Lionfish Control Program in the Keys. Most of their staff have been through REEF’s Lionfish Collection and Handling Workshop and they hold current permits to collect lionfish in the no-take Sanctuary Preservation Areas (SPAs). The dive shop also serves as a Lionfish Collection Bank, collecting, labeling, and storing collected lionfish until they pass them to REEF for research purposes. Mike recently developed a “Lionfish Safari” PADI specialty course. Mike says, “Although lionfish are an ecological nightmare, we are trying to make the best of it by engaging divers in lionfish control efforts and drumming up business at the same time.”

    REEF and Florida Keys Sanctuary to Host Second Annual Lionfish Derby Series

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    Divers will return to Florida Keys waters next month on a mission: net thousands of dollars in cash and prizes while protecting the environment from invasive lionfish. REEF and the Florida Keys National Marine Sanctuary are hosting the second annual lionfish derby series starting May 14, in Long Key, Fla. In 2010, the inaugural series of lionfish derbies removed 664 of the Pacific invaders from sanctuary waters. “Anyone who appreciates the diversity of the Keys coral reef should be concerned about these invasive fish,” said Sean Morton, Sanctuary Superintendent. “Divers have been actively engaged in lionfish removal in the Keys since 2009 and these tournaments are a way to reward them for their dedication to the reef.” Researchers will collect samples from lionfish caught at the derbies to learn more about lionfish genetics, growth, and impacts to native marine life. Each tournament also includes a detailed awareness and training briefing and lionfish tasting. In addition to the derby on May 14, two other events will be held later this year -- August 20 at Coconuts Restaurant in Key Largo and November 5 at Hurricane Hole Marina in Key West. To find out more about the Derby Series, visit the Derby Webpage.

    Lionfish Derbies in the Florida Keys Removes Over 1,000 of the Invasive Fish

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    Jen Russell shows off her catch, which netted the largest lionfish award in the Key West derby this year.

    Divers and snorkelers removed 1,518 invasive lionfish from Florida Keys waters during three Lionfish Derby events in 2011. Organized by REEF in partnership with the Florida Keys National Marine Sanctuary, the Florida Keys Lionfish Derby series began in 2010 to engage local communities in addressing the invasive lionfish issue. Goals of the lionfish derby series include raising awareness, educating collectors in safe collecting and handling procedures, providing samples for research, conducting lionfish cooking demonstrations and tastings for the general public, and encouraging ongoing removal efforts throughout the region. Teams of registered divers competed for cash and prizes in the categories of most, largest, and smallest lionfish. Dive teams traveled from as far as Chicago, IL.; Austin, TX; and Sunapee, NH to compete in the derbies. Participants and attendees observed filleting demonstrations and enjoyed tastings of lionfish caught during the event. Researchers from the U.S. Geological Survey, Salisbury University, University of Florida, Loyola University, international researchers from the UK, the State of Florida, and NOAA all utilized samples and data from the derbies to aid in their lionfish research. Growing populations of lionfish off the southeast U.S., Caribbean, and Gulf of Mexico are impacting native marine life commercially, recreationally, and ecologically important species. Derbies are just one of several strategies being employed to help control the lionfish invasion. Thanks to derby sponsors, including Ocean Reef Conservation Association, City of Layton, Divers Direct, Dive Key West, Spree Expeditions, Markey Marine Services, and The Weekly Newspapers. Visit www.REEF.org/lionfish/derbies for derby results and updates on future derbies. Visit the REEF Lionfish webpage to find out more about REEF's Lionfish program.

    2013 REEF Field Survey Trip Schedule Announced

    We are excited to announce our 2013 Field Survey Schedule. There is an exciting lineup of destinations planned and we hope you will join us. These trips offer a great introduction to fish identification for novice fishwatchers, and are a fun way for experienced surveyors to build their life list while interacting with fellow fishwatchers. REEF staff, board members, and other REEF experts lead these trips, and each features daily classroom seminars and a full diving schedule. Destinations include: Fiji, Bahamas, Little Cayman, Utila, British Columbia, Grenada, Soccoro Islands, and Cozumel. Dates and locations of the 2013 trips and information on remaining 2012 trips are below. Complete package details and prices can be found online at www.REEF.org/trips. To find out more about any of these trips or to book your space, contact our travel consultants at Caradonna at 1-877-295-7333 (REEF), or via e-mail REEF@caradonna.com. Make a Dive Trip That Counts!

    Dates and destinations for 2013 --

    May 11 - 21, 2013 Fiji, aboard the Nai'a, Led by Paul Humann

    May 18-25, 2013 Southern Bahamas, Lionfish Research Cruise aboard Explorer II, led by Lad Akins, REEF Director of Special Projects, and Peter Hughes

    July 13-20, 2013 Little Cayman, Southern Cross Club, led by Paul Humann, REEF Co-Founder and Renowned Underwater Photographer and Marine Life Author

    July 21-28, 2013 Utila, Deep Blue Utila, led by Ned and Anna DeLoach, REEF Board Members and World-Famous Marine Life Authors and Photographer/Videographers

    September 25 - 28, 2013 Barkley Sound, British Columbia with Rendezvous Dive Adventures. Led by Janna Nichols, REEF Outreach Coordinator

    October 5-12, 2013 Grenada, with True Blue Bay Resort and Aquanauts Diving. Led by Dr. Christy Pattengill-Semmens, REEF Director of Science

    December 3-12, 2013 Socorro Islands, aboard Rocio del Mar, led by Andy Dehart and Marty Snyderman, Shark Experts, Photographers, and REEF Board Members

    December 7-14, 2013 Cozumel, Aqua Safari, led by Tracey Griffin and Sheryl Shea, REEF Fish Experts and Cozumel Naturalists

    2012 Trips with space available --

    July 14-21, 2012 - Lionfish Research in Dominica - Dive Dominica and Anchorage Hotel, led by Lad Akins, REEF Director of Special Projects

    July 28 - August 4, 2012 - San Salvador, Bahamas - Riding Rock Inn and Marina, led by Paul Humann, REEF Co-Founder and Renowned Underwater Photographer and Marine Life Author

    September 22-29, 2012 - Sea of Cortez, Baja Mexico - Rocio del Mar liveaboard, led by Drs. Christy and Brice Semmens, REEF Director of Science, REEF Researcher

    October 6-13, 2012 - Bermuda - Triangle Diving and Grotto Bay Hotel, led by Ned and Anna DeLoach, REEF Board Members and World-Famous Marine Life Authors and Photographer/Videographers

    November 10-17, 2012 - British Virgin Islands - Cuan Law liveaboard, led by Heather George, REEF Expert

    Putting It To Work: REEF Data Used in New Publication on Snappers and Climate Change

    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.

    Join the Celebration Next Month in Key Largo

    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.

    Check Out the 2014 Fishinar Schedule

    Learn all about how to ID butterflyfish like these Spotfin Butterfly during the upcoming Fishinar. Photo by Carol Cox.

    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:

    • Squirrels, Soldiers & Cardinals: Seeing Red? Count on It! - Jonathan Lavan
    • California Lookalikes - Janna Nichols and Keith Rootsaert
    • Top 25 Fish of the South Atlantic States - Dr.Christy Semmens
    • Crabinar! - Dr. Greg Jensen
    • Top 25 Fish of Roatan - Special ScubaBoard Session - Jonathan Lavan
    • What I Did On My Fall Vacation – Research on the Fishes of Southern California Oil/Gas Platforms - Dr. Milton Love
    • Butterflies and Angels: Kings and Queens of the Reef - Jonathan Lavan
    • A Few Mind-Blowing Fish Every Ichthyo-Geek Should Know About - Ray Troll
    • Coralinar! - Dr. Marilyn Brandt
    • Eastside vs. Westside: Lookalike Fish from the Pacific and Atlantic coasts - Andy Lamb and Andy Martinez

    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!

    REEF Welcomes New Trips Program and Communications Manager

    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.

    Design by Joanne Kidd, development by Ben Weintraub