Putting It To Work: New Publication on Effectiveness of Lionfish Culling

A bag of culled lionfish in the Bahamas. Photo by Leah Neal.

REEF staff co-authored a new publication in the scientific journal PeerJ that features research findings from our Invasive Lionfish Research Program. The paper, titled "Setting the record straight on invasive lionfish control: Culling works", evaluates the effectiveness of lionfish removal efforts. Frequent culling of the invasive Indo-Pacific Lionfish throughout the Caribbean has been shown to cause a shift towards more wary and reclusive behavior by lionfish, which has prompted calls for halting culls. The paper addresses those concerns and reviews research conducted by REEF and other efforts. Culling successfully lowers lionfish numbers and has been shown to stabilize or even reverse declines in native prey fish. Partial culling is often as effective as complete local eradication, yet requires significantly less time and effort. Abandoning culling altogether would therefore be seriously misguided and a hindrance to conservation. The authors also offer suggestions for how to design removal programs that minimize behavioural changes and maximize culling success. The paper is available for online viewing here. You can find a complete listing of all publications that feature REEF's programs at www.REEF.org/db/publications.

New La Jolla Canyon Fishinar Added to Schedule

Horn Shark, one of the many finds waiting REEF surveyors in La Jolla Canyon. Photo by Jonathan Lavan.

If you haven't participated in one of our free, educational webinars yet, you don't know what you are missing! Known as Fishinars, these hour-long sessions enable you to 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. We recently added a new Fishinar scheduled for March 26th that will cover common fishes and invertebrates found in San Diego's La Jolla Canyon. The remaining schedule includes...

  • Hamlets! - Carlos and Allison Estape, March 3rd
  • In a Cavern, In a Canyon - Jonathan Lavan, March 26th
  • The Fishes of Fiji, Part 1 - Christy Pattengill-Semmens, April 6th
  • The Fishes of Fiji, Part 2 - Christy Pattengill-Semmens, April 9th
  • Jack Attack - Jonathan Lavan, April 14th
  • Snap On, Snap Off - Caribbean Snappers - Jonathan Lavan, May 21st
  • More to come!

Explore our Fishinar webpage, register for the sessions you like, and we'll see you online! You can also request viewings of archived Fishinars, a special perk for REEF members. 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!

Putting It To Work: Who's Using REEF Data, August 2015

Canary Rockfish, one of several species of concern in the evaluation of impact on jetty construction in Puget Sound, Washington. Photo by Janna Nichols.

Every month, scientists, government agencies, and other groups request raw data from REEF’s Fish Survey Project database. Here is a sampling of who has asked for REEF data recently and what they are using it for:

- A scientist from Bermuda Institute of Ocean Sciences (BIOS) requested REEF data to evaluate fish assemblages in Bermuda with regard to no-take reserves, comparing shallow vs. deep water habitats, and to evaluate the impact of invasive lionfish.

- A scientist from Washington State Department of Transportation requested REEF data to help evaluate the impacts of a proposed ferry terminal at Keystone Jetty on three species of protected rockfish.

- A graduate student from University of Miami requested REEF data from New Providence, Bahamas, to compare the measures of rugosity used in various research research methods and their ability to predict fish diversity and abundance.

A complete list of scientific publications featuring REEF programs and data can be found at www.REEF.org/db/publications.

Fish sightings

asdfasdfassdf alksdjfalksdjflaksjf

This is a scan form

 

REEF 2008 Field Survey T-Shirt Contest

tshirtREEF copy.jpg
Help REEF Create The 2008 Field Survey Shirt
Bonaire_07Field_Survey.jpg
2007 Bonaire Field Survey Team Led by Ned and Anna Deloach
REEF-Utila2007GroupPhoto.jpg
Paul Humann led Utila Field Survey, Oct.2007

REEF is asking any interested REEF members to submit to us a Field Survey T-shirt design for our upcoming 2008 season. Those of you who have participated in the past on a REEF Field Survey know that you receive a t-shirt as part of your participation in the program and every year we have a different design. There are only a couple of guidelines for you. Our new REEF Shirt must incorporate our REEF flag with our slogan, Diving That Counts! (I will send interested parties the jpeg file upon request). You do not need to incorporate the dive flag directly into the design, it may simply be on the front breast pocket of the t-shirt, for instance, with your design on the back and in this case, no need to ask
for our logo, we'll take care of that.

You should keep in mind our mission as stated on the top of our homepage, and our mantra, "diving that counts." Also please keep in mind that REEF actively surveys in 5 regions, not just the tropical western Atlantic. Please send your submissions to joe@reef.org, making sure they are in an easily readable format such as a jpeg file (preferred). Please send all entries in by Dec. 31, 2007.

Depending on the number of submissions we receive, we may have our members vote on the winner in January of 2008. Past t-shirts have had fish images, divers surveying, cartoons depicting divers surveying with witticisms, watercolors of fish, etc. Most importantly, our t-shirt design should incorporate the conservation-based focus of our Field Survey Program.

Thanks in advance for your participation and our staff will look forward to your entries. First prize will be a signed and framed 2008 Paul Humann print of two beautiful Eagle Rays.

 

Field Survey Season 2008 - 5 Spaces are still available for our Turks and Caicos Liveaboard on Aggressor II, April 19-26, 2008.
Please contact Travel for You at 1-888-363-3345 or Joe Cavanaugh at 305-852-0030. The 2008 Field Survey page will be completed shortly - please check back in a week for final content.

Grouper Moon Project Kicks Off Expanded Research Efforts

08agg_bush.jpg
Thousands of Nassau grouper in spawning colorations aggregated to spawn on the west end of Little Cayman Island following the full moon in January. Photo by Phil Bush.
nassau_brac_tagging.jpg
A Nassau grouper from Cayman Brac that will be acoustically tagged to better understand local reproductive behaviors.
IMG_0340.jpg
The 2008 team of Grouper Moon researchers and REEF volunteers.

Thanks to a three-year grant from the Lenfest Ocean Program at the Pew Charitable Trusts, REEF and collaborators at the Cayman Islands Department of the Environment (CIDOE) and Oregon State University (OSU) will greatly expand the conservation science research being conducted as part of the Grouper Moon Project in the Cayman Islands. The funded research, entitled "The reproductive biology of remnant Nassau grouper stocks: implications for Cayman Islands Marine Protected Area (MPA) management" will evaluate the potential for spawning site MPAs to recover Nassau grouper stocks.

In 2003 the Cayman Islands government protected all five known current and historic Nassau grouper spawning sites in the Cayman Islands. This move was motivated by the 2001 discovery and rapid depletion of a large spawning aggregation (~7000 fish) on the west end of Little Cayman. This rapid legislative response protected the west-end spawning site before all the fish were taken (~3,000 remain), and the site is now one of the largest fully-protected Nassau grouper spawning aggregations in existence. However, the other four spawning sites had previously been fished to exhaustion and are believed to be inactive, i.e. aggregations no longer occur during spawning season.

Over the next three years, REEF will continue the ongoing aggregation monitoring and acoustic research that has been conducted on the Little Cayman aggregation since 2002 and expand efforts to Cayman Brac and Grand Cayman, where historical spawning aggregations were fished out during the last ten years. Four primary research questions being asked as part of the Lenfest-funded project are: 1) Do aggregations form in regions that have been fished out? 2) If aggregations form, do the fish ultimately spawn? 3) Do these aggregations form at historic sites or somewhere else? And, 4) Does spawning at these remnant aggregations result in new recruitment?

The new research kicked into gear last month with a team of Grouper Moon scientists and REEF volunteers who conducted twelve days of field work in Little Cayman and Cayman Brac. The team visually monitored the Little Cayman aggregation, documenting the largest number of fish since the fishing ban was implemented in 2003. Spectacular mass spawning was documented at dusk seven days after the full moon. Grouper Moon scientists conducted extensive work on Cayman Brac to enable future visual monitoring on the historical aggregation site and initiate an acoustic tagging study that will facilitate a better understanding of the behaviors of Nassau grouper on an island with a limited number of reproductively-aged individuals. Later this Spring and Summer, REEF researchers, volunteers and an OSU graduate student will return to the Cayman Islands to conduct larval recruitment studies and begin acoustic tagging on Grand Cayman.

Capitalizing on the the increased breadth of research questions being asked as part of the Lenfest Ocean Program grant, the CIDOE is supporting a larval dispersal study that also kicked off this year under the guidance of Dr. Scott Heppell from OSU. Three satellite drifters were deployed at the Little Cayman aggregation site on the night of spawning. The paths will be recorded by ARGOS satellites for 45 days and the resulting data will be used to develop a larval dispersal model in collaboration with researchers from University of Miami. Check out the 2008 image gallery to see where the drifters are today.

Visit the Grouper Moon Project webpage to find out more about this critical conservation research program and the 2008 Gallery page to see images and video of the field work.

REEF extends a big thank you to the island business who continue to support this project, including the Little Cayman Beach Resort and the Southern Cross Club, as well as Peter Hillenbrand and Mary Ellen Cutts, Franklin and Cassandra Neal, and the 2008 REEF Volunteer Team -- Judie Clee, Brenda Hitt, Denise Mizell, and Leslie Whaylen.  We also greatly appreciate the continued support of our collaborative team, including the CIDOE and OSU, and the Lenfest Ocean Program at the Pew Charitable Trusts.

REEF News Tidbits for June

Please Help REEF Meet Our Summer Fundraising Goal! -- Please remember to donate online today through our secure website or call the REEF office (305-852-0030).

Pre-order Your Copy of the 2nd Edition of Coastal Fish Identification -- Greatly expanded and improved, the 2nd edition includes more than 30 new species and 70 new photographs.  It's the perfect identification resource for surveyors from California to Alaska.  Orders are being taken now through the REEF online store.  Copies will be shipped by the end of July.

Upcoming Lionfish Research Project Opportunity -- Interested in seeing REEF's lionfish research first-hand?  Join us and our partners from the National Aquarium in Washington D.C., the Bermuda government, and Ned and Anna DeLoach at Stuart Cove's in the Bahamas September 14-20.  Click here to find out more.

Fall Fundraising

jawfish_humann.jpg
The 2008 Fall Fundraising premium image - a male yellowhead jawfish guarding a brood of eggs in his mouth. Photo by Paul Humann.

Here at REEF, we are tightening our belts and doubling our efforts to keep our long tradition of service alive during these challenging financial times. As never before, we are counting on your financial support, which for nearly two decades has been the cornerstone of our grass-roots’ partnership protecting the marine environment. Watch your mail for REEF's Fall Fundraising appeal. Or better yet, don’t wait and donate today using our secure online form.  Once again, REEF co-founder and marine life photographer, Paul Humann, has donated a special signed print as a premium gift for REEF members donating $250 or more. This year's print features a beautiful male yellowhead jawfish guarding a brood of eggs in his mouth.

Since its inception REEF’s accomplishments have been powered by volunteers and donations from many friends like you who have a strong commitment to the health and protection of the natural world. We attribute our longevity to service, ethics, innovation and the wise use of this funding. We are proud to maintain one of the lowest administrative to program cost ratios in the non-profit sector. Even so, we have been able to increase our services and support long-term projects, such as the Volunteer Survey Project, the Grouper Moon Project, and the Lionfish Invasion Research Program.

Thank you for considering a gift of any size, we truly appreciate your support and your belief in our mission.

Belize Lionfish Project - Last few remaining spots

infestation_small.jpg
Lionfish are rapidly invading Belize and other Central American countries. Help do something about the problem on a special benefit trip aboard the Sun Dancer. Photo by Rich Carey.

Needed -- a few more volunteers for this critical marine conservation project in Belize! Peter Hughes and REEF’s Lad Akins will lead this great project aboard the livaboard dive vessel Sun Dancer II, June 13-20. I am sure that most of you have been following the news about the lionfish invasion and the recent updates on fish beginning to show up in Belize. We are really concerned about this. The Central American coast is going to be the most likely pathway for introduction of the fish into the Gulf of Mexico and the extremely valuable fish and shrimp industry there.

What can we do? One of the first things that can be done is early detection and rapid response to remove these fish as they show up. To that end Peter Hughes Diving has worked with REEF to organize the first lionfish assessment and removal project in Belize (or anywhere in Central America for that matter!). This is going to be a great first effort on detecting fish, removing what we see and training local staff on how to collect and handle the fish so they can remove them year-round.

What do we need? We need more of you! We need your interest, expertise and involvement to make this project a success. We know that times are tight and there is concern over travel to some areas, but this project is not to be missed. We will be offshore on the Sun Dancer II, one of the most highly regarded liveaboards in the region. First class service, first class diving and a very important mission!

We hope you can make this project! For more information and to sign up, call Peter Hughes Diving at 1-800 9 DANCER (800-932-6237). You can also contact REEF Director of Special Projects, Lad Akins, with any of your lionfish questions and to find out more about this trip (lad@reef.org, 305-852-0030).

We look forward to seeing you there!

Sevengill Shark Sightings on the Rise in Southern California

sevengill_scottmcgee.jpg
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).

Design by Joanne Kidd, development by Ben Weintraub