REEF Director of Special Projects, Lad Akins, has co-authored several recent scientific publications on the invasive lionfish in the western Atlantic, including:
-Diet richness of invasive Indo-Pacific lionfish revealed by DNA barcoding. Marine Ecology Progress Series. Significant research by REEF researchers and others has been conducted looking at stomach contents of lionfish to identify prey. However, relatively few prey species have been identified because of the challenge of identifying partly digested prey. The authors of this study addressed this issue by DNA-barcoding unidentifiable fish items from the stomachs of 130 lionfish. They identified 37 prey species, half of which had previously not been recorded as lionfish prey.
-Rapid invasion of Indo-Pacific lionfishes (Pterois volitans and Pterois miles) in the Florida Keys, USA: evidence from multiple pre- and post-invasion data sets. Bulletin of Marine Science. This paper uses data from the 20,000+ REEF surveys conducted in Florida since the early 1990s, along with other long-term data sources, to document the appearance and rapid spread of lionfishes in the Florida Keys. Between 2009 and 2011, lionfish frequency of occurrence, abundance, and biomass increased rapidly, increasing three- to six-fold between 2010 and 2011 alone.
- Habitat complexity and fish size affect the detection of Indo-Pacific lionfish on invaded coral reefs. Coral Reefs. This paper explores detectability rates of lionfish using underwater visual census methods such as belt transects and stationary visual census. Knowing the error in these methods specficially for lionfish is necessary to help study this invasive species in the western Atlantic. The authors found that the two census methods detect fewer than 30% of lionfish present in an area and, in more than 50% of the cases, fail to detect any lionfish when one or more indivudals are actually present.
For a complete list of publications featuring REEF data, visit www.REEF.org/db/publications.
REEF's Director of Special Projects, Lad Akins, and REEF affiliate scientist Dr. Stephanie Green (Oregon State University) and REEF Advisory Panel member Dr. Steve Gittings (NOAA National Marine Sanctuaries) participated in the first submersible expedition to assess the lionfish invasion on deep marine habitats off South Florida June 27-29. While REEF and other scientists have studied lionfish in shallow habitats, the Antipodes lionfish expedition gave scientists the opportunity to learn about lionfish populations far below recreational diving limits. The five person submersible is capable of descending to 300 m (1,000 ft) deep and has large acrylic domes that allow for observations and photography.
During the expedition, team members including Dr. Gittings and Dr. Green completed dives to 300ft in the submersible to look for lionfish on both natural rocky and artificial reefs, including the 209ft-long cargo ship Bill Boyd. Both scientists sighted dozens of invasive lionfish in all habitat types during the dive, highlighted by view of the stern of the wreck holding dozens of lionfish. Dr. Green also conducted a number of REEF surveys to document the native fish community in areas invaded by lionfish, sighting a number of reef fishes that are often only found below recreational dive limits, including snowy grouper, roughtongue bass, red barbier, short bigeye, and bank butterflyfish.
The project, hosted by NOVA Southeastern University, was led by OceanGate Inc. and included participants from Florida Fish and Wildlife Conservation Commission, University of Miami, NOVA, and Guy Harvey Foundation, and others. On Saturday following the expedition dives, Lad Akins, Dr. Green, and Dr. Gittings met with media and the public in a half-day summit to discuss the invasion and potential actions to manage lionfish populations in areas that can't regularly be accessed by divers. The summit concluded with a lionfish filleting demonstration by Lad, and a tasting of lionfish ceviche prepared by Kareem Anguin, Executive Chef, The Oceanaire Seafood Room. See the expedition website for more information.
As part of a Florida Sea Grant funded project, REEF is working this summer to assess deepwater lionfish populations in the Florida Keys using ROVs and technical divers.
We want to extend a special thanks to our members who have already made a donation during our Winter Fundraising Campaign. If you haven't yet, please take a moment to support REEF's critical marine conservation work. You can contribute securely online at www.REEF.org/contribute or call REEF Headquarters at 305-852-0030.
With your support, we will build on twenty years of success. In 2014, REEF plans to:
Give a gift to our oceans by supporting REEF programs. This year, we also have gifts to give in appreciation of your donation, which include a print of a limited edition, signed print of Sailfin Blenny ($250 or more), acknowledgement on the Giving REEF ($500 or more), and a special webinar with Ned and Anna DeLoach ($1,000 or more).
The 22nd annual Great Annual Fish Count (GAFC) is rapidly approaching! Will you be participating? We encourage local shops, dive clubs, and other groups to organize an activity anytime during the month of July (and often training events in June). You can view events already scheduled, and add your own, by visiting www.fishcount.org.
The concept behind the GAFC is to not only accumulate large numbers of surveys during the month of July, but to introduce divers and snorkelers to Fishwatching and conducting REEF surveys. Interested groups can offer free fish ID classes, organize dive/snorkel days, and turn them into fun gatherings! To find out more, contact us at email@example.com.
A recent publication in the scientific journal, Conservation Letters, examined the invasion of lionfish in to the western Atlantic and Gulf of Mexico waters. The authors compared traditional reef fish monitoring efforts to less traditional data including the observations of divers through REEF's Volunteer Fish Survey Project and spearfishers. They found that citizen observations documented lionfish 1-2 years earlier and more frequently than the more traditional monitoring efforts. The authors also explored the willingness of spearfishers to help minimize impacts of the invasion by harvesting lionfish. They found that spearfishers who had encountered more lionfish while diving perceived them as more harmful to the habitat than less experienced divers and were also more likely to participate in harvesting initiatives. The authors also report that encouragement from scientists and managers was a far better motivator than the desire to harvest lionfish for personal consumption. This study demonstrates the value of engaging citizens for assessing and responding to large-scale and time-sensitive conservation problems. Visit www.REEF.org/db/publications to see this and all of the scientific publications that have included REEF Volunteer Fish Survey Project data.
Are you a California diver? Or perhaps simply an ocean enthusiast wanting to learn more about critters that call the California kelp forests home? Then be sure to check out the upcoming Fishinar schedule. Whether you've attended one of our famous Fishinars (REEF's version of an online webinar) before or not, you're sure to enjoy one of our upcoming free classes! From the comfort of your own home, or on-the-go on your mobile device, you can join in the camaraderie of your fellow fish-fanatics and learn from experts in our short, free, fun and interactive-styled Fishinars. Check out www.REEF.org/fishinars for more information.
Upcoming California Fishinars include:
A few other Caribbean Fishinars are scheduled this Fall as well, including:
Okay, well not exactly. But now that I have your attention. We ARE counting something in REEF HQ's backyard, not fish, but birds! I have signed myself /REEF up for Cornell University's Lab of Ornithology Project FeederWatch, an annual survey of birds that visit bakcyard feeders in winter. I have known about this other great citizen science program for a couple of years and like many of you, my love for birds, equals my affinity for fishes. Last week, 4 painted buntings visited REEF's feeder for a little over a week! You can see my fuzzy picture of a couple of them at the feeder from afar in one of the attached photos. This prompted me to go online and investigate Cornell University's FeederWatch Program further. From their homepage you will read, "FeederWatchers periodically count the highest numbers of each species they see at their feeders from November through early April. FeederWatch helps scientists track broadscale movements of winter bird populations and long-term trends in bird distribution and abundance." Sounds a bit familiar doesn't it?
Spend a little time on their website and you will see that FeederWatch parallels REEF programmatically in a few significant ways: 1. Anyone can participate in North America, all different levels from beginners to experts; 2. We both begin participation by purchasing a starter kit, FeederWatch calls theirs a Participant Kit and it costs $15; 3. Both organizations have online Dataentry and tracking of individual participant data; 4. Similar absence/presence data, abundances, and distribution for both groups in addition to viewing individuals' data http://watch.birds.cornell.edu/PFW/ExploreData; 5. Both of our organizations utilize citizen science data to inform and assist scientists in assessing population abundance indices of important avian and fish species, leading to peer-reviewed publications and ultimately influencing species and habitat management decistions; 6. You can check on their database to see what birds are rare in your area and if there are any other FeederWatch stations near you, just as REEF members can check for fish sighting frequencies and dive sites that have been surveyed in our areas of interest.
I'm sure there are many more parallels I could draw for you, but you get the point. One important note and the reason I am submitting this article right now is that FeederWatch season runs from the the second Saturday in November through April and is a winter activity. For all of our temperate REEF members who are looking for something to count when you're not underwater, this is it! To learn more, check out their website at http://www.birds.cornell.edu/pfw/Overview/over_index.html.
Greetings from REEF HQ! Conservation science is in sharp focus here at REEF, from an expanded Grouper Moon Project to new uses of REEF data in the Channel Islands. REEF is making giant strides in the Florida Keys community with a successful For the Love of the Sea benefit event, upcoming citizen science panel discussions and the recognition of two invaluable volunteers by a prominent community foundation. If you're looking for travel opportunities, consider jumping on one of the 4 spots just released on the Turks and Caicos Field Survey, April 19-26, or joining the Sea of Cortez Field Survey October 5-12. Educators can apply to join these or other REEF Field Survey teams through a special scholarship. Please read on . . .
With just a few days left in the REEF Summer Drive, we are almost there. Help REEF meet our goal of raising $25,000 by the Forth of July holiday. Please do your part to make sure that REEF's important marine conservation programs continue to make a difference. In appreciation, donations of $50 or more will get you a copy of the exclusive 2008 Album of the Sea Screensaver with amazing underwater photographs by Ned and Anna DeLoach. Please donate online through our secure website or call the REEF office today (305-852-0030).