REEF Grouper Moon scientists co-authored a recent groundbreaking paper in the journal PLoS One that highlights the importance of regional conservation efforts aimed at spawning aggregations in the Caribbean. This study evaluated genetic connectedness between Nassau Grouper populations throughout the Caribbean using DNA markers. The authors obtained genetic tissue samples from 620 Nassau Grouper from 19 sites across 9 countries, including the Cayman Islands. They found evidence for strong genetic differentiation among Nassau Grouper subpopulations throughout the Caribbean. These results suggest that, despite a lack of physical barriers, Nassau Grouper form multiple distinct sub-populations in the Caribbean Sea. Oceanography (regional currents, eddies) likely plays an important role in retaining larvae close to spawning sites at both local and regional spatial scales. These findings highlight the importance of conservation initiatives such at REEF's Grouper Moon program in the Cayman Islands. A PDF of the paper is available online here. You can see a complete list of all scientific papers that have included data from REEF programs at www.REEF.org/db/publications.
The full citation of the paper is: Jackson AM, Semmens BX, Sadovy de Mitcheson Y, Nemeth RS, Heppell SA, et al. (2014) Population Structure and Phylogeography in Nassau Grouper (Epinephelus striatus), a Mass-Aggregating Marine Fish. PLoS ONE 9(5): e97508. doi:10.1371/journal.pone.0097508
REEF members are at the heart of our grassroots marine conservation programs. Over 50,000 divers, snorkelers, students, and armchair naturalists stand behind our mission.
This month we highlight Herb Gruenhagen. Herb has been a REEF member since 2001, and has conducted 208 surveys (all in his home state of California). He is a member of the Pacific Coast Advanced Assessment Team as an Expert Surveyor. Here's what Herb had to say about REEF:
When and how did you first volunteer with REEF or become a REEF member?
In July 2000, the San Diego Ocean Foundation sunk a Canadian Destroyer as an artificial reef. I was one of several divers who performed both fish and invertebrate surveys, using transects, quadrats, and REEF Roving Surveys. When the San Diego Oceans Foundation decided to become a REEF Field Station, I volunteered to become a volunteer REEF instructor. I have been teaching a REEF class each month in San Diego since that time.
What are some of the highlights of your local diving?
I dive the La Jolla Shores most of the time, and it is always changing. There are the resident species, the transients, and the seasonal ones. The resident species will always be there no matter what. The transients can be the many pelagic species that the currents bring in. For example, a while back, we are seeing several different species of jellyfish and the leopard sharks are returning to the warmer water shallows near the Marine Room. The seasonal species are really the special surprises. During the early spring the nudibranchs come out to start their mating, and in the winter, we have a ‘white’ Christmas with all the Market squid schooling, mating, and laying their white finger-like egg cases. Other special surprises can be molas, baby grey whales, midshipman, mantis shrimp, wolf-fishes, and even Finescale Triggerfishes.
What is the most interesting thing you’ve learned doing a REEF fish survey?
Doing REEF surveys really highlights the many different variations that a given species can take on. Being a REEF surveyor gives you the ability to recognize new species from common species, and all the many variations within the same species. Paying attention to all the details is really important to getting a good ID. I try to get a good image of the fish and ask for help when I’m not sure.
In your opinion, what is the most important aspect of REEF’s projects and programs?
After all the years of teaching the courses, I’m just really glad to see local divers coming to my class to expand their knowledge of the local marine life, whether they do one survey or many surveys. I love watching the learning process and expanding the students minds of the many wonderful forms of marine life we have here to enjoy and need to perserve for future generations.
Do you have a favorite local (or not) REEF field station or dive shop?
The REEF Field station is the San Diego Oceans Foundation, but the facilities that we use is Ocean Enterprises in San Diego. Ocean Enterprises has been very supportive over the years and everyone really appreciates the use of their classrooms, computer and projector and its central location in the city. Thank you Ocean Enterprises for your many years of support.
What is the most fascinating fish encounter you’ve experienced? What is your favorite?
Well, of course photographing species new to science or that is rare or very uncommon is a highlight. I have photographed several fishes and nudibranchs that fall into one of those categories. My most fascinating fish that I have seen is the Specklefin Midshipman, Porichthys myriaste. We see many juvenile Plainfin Midshipman in the winter, but the Specklefin were quite a find! One of my favorite fishes is the Sarcastic Fringehead. They are one of the few fishes that see you as a threat and will interact with divers and their photo gear. They will charge out of their breeding holes (ok, we are talking about a 6” fish) at the camera lens, thinking they are seeing ‘another’ fringehead in the lens. They will bite all your cables and your finger and charge back into their hole. They will also interact with each other and fearlessly defend their breeding holes by opening their mouths at each other beyond the stretching point.
Herb teaches free Southern California Marine Life ID classes the third Wednesday of each month. Join him!
REEF Staff and Board members are proud to announce the release of our 2013 Annual Report. To view a PDF of the report online, click here. In this report, you will find updates on our membership, the Volunteer Fish Survey Project, regional activities, special projects including Invasive Lionfish Research and the Grouper Moon Project, data use and publications, our upcoming plans, and finances. We are truly grateful for all your support that made 2013 such a success! Please contact us if you have questions or want more information about any of the information presented in our Annual Report.
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.
With Jamie's arrival at REEF Headquarters, we have been busily working on an exciting lineup of Field Survey trip destinations for 2015. REEF 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.
We will be announcing the full 2015 REEF Trip Schedule soon. But today, we are excited to share a few of the trips that we have planned to the tropical Pacific Ocean.
Kona Coast Big Island Hawaii, aboard the Kona Aggressor Liveaboard! Feb 28 - Mar 7, 2015 (12 spaces left)
Fiji's Bligh Waters, aboard the NAI'A Liveaboard! Two trips: May 2-12, 2015 (1 space left) and May 12-19, 2015 (14 spaces left)
We are excited to announce an exclusive opportunity for REEF members to pre-purchase the 4th edition Reef Fish Identification - Florida, Caribbean, Bahamas by Paul Humann and Ned DeLoach. This newly released version includes 89 new fish species and over 150 new photos, representing a significant update to the 2002 3rd edition. The new book is currently only available through the REEF online store. Purchase your copy today by clicking here. You can also purchase the three book Reef ID Set here, which includes the new 4th edition fish book, as well as the recently released updated editions of Coral ID and Creature ID books.
Since the release of the first edition of Reef Fish Identification in 1989, this book has revolutionized fishwatching. The 4th edition is packed with amazing marine life photographs of 683 species and enough information to keep marine life enthusiasts busy for years. It includes the latest information on what is known about the taxonomy and distribution of Caribbean reef fishes. The easy-to-use, quick reference format makes it easy to identify the hundreds of fishes sighted on the reefs, sand flats, grass beds, surf zones and walls of Florida, the Caribbean and Bahamas.
To help our members get the most out of the new book, we will be offering two free Fishinars (online webinars) in the coming weeks to review many of the new additions and species updates that were included in the 4th edition. We hope you will join us for “Digging Deeper in to Caribbean Fish ID - Exploring the 4th Edition of Reef Fish ID, Parts 1 and 2”, on June 16 and June 30, at 5pm PST, taught by REEF Director of Science, Christy Pattengill-Semmens, PhD. Fishinars are free to REEF members and are easy to access through a basic web browser. To register for one or both sessions, visit www.REEF.org/fishinars.
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. Check out the full schedule at www.REEF.org/fishinars. Fishinars coming up include:
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!