Dr. Jim Bohnsac is our Science Liaison to the Board of Directors and a Fisheries Biologist with NOAA. Recently, Jim has been interviewed several times about the effectiveness of the Dry Tortugas National Park in protecting fish species inside and outside of the protected areas. The Dry Tortugas lie approximately 70 miles SW of Key West and are an integral part of the greater Keys coral reef ecosystem.
No-fishing zones studied, Protective areas aim to increase size, number of fish
Brian Skolof, ASSOCIATED PRESS
Wednesday, July 2, 2008
DRY TORTUGAS NATIONAL PARK - Reeling in a 45-pound grouper used to be just an average day on the water in the Florida Keys. The abundance of behemoth fish attracted anglers from around the world in the early 1900s, including adventurers such as Ernest Hemingway and Zane Grey, who pulled in monsters from the clear, warm depths off Key West. But as Florida's population boomed, the attraction that drew them began to vanish. Anglers were snapping up the larger fish by the thousands. An average grouper caught in the Keys now is about 8 pounds. "We were starting to look like a Third World nation in regards to having blitzed our resources," said University of Miami marine biologist Jerald Ault.
Mr. Ault and others are studying whether putting large tracts of ocean off-limits to fishing in the Keys can help species rebound - and prove a way to help reverse the effects of overfishing worldwide. Federal and state scientists, along with University of Miami researchers, wrapped up a 20-day study on June 9 after 1,710 dives in the region, surveying fish sizes and abundance, in an effort to determine whether it's working. Critics assert that it isn't. They say limiting size and catch quantities, not fencing off the seas, will help restore ocean life.
The fierce debate has raged between scientists and anglers for years. Some studies suggest the outcome could mean life or death for not only commercial and sport fishing, but for mass seafood consumption as it exists today. Florida has the largest contiguous "no-take" zone in the continental U.S. - about 140 square miles are off limits to fishing in and around Dry Tortugas National Park, a cluster of seven sandy islands about 70 miles west off Key West amid the sparkling blue-green waters that teem with tropical marine life. Nearby, another 60 square miles are also off limits.The region is home to some 300 fish species and lies within a crucial coral reef habitat at the convergence of the Gulf of Mexico, the Caribbean Sea and the Atlantic Ocean. To see the rest of this story, please visit -
More recent interviews with Jim Bohnsac -
Are artificial reefs good for the environment?
Proponents say they replenish the ecosystem. Some scientists aren't so
Newsweek Web Exclusive
Updated: 8:49 PM ET Jun 20, 2008
Off the Hook? Scientists, anglers debate if 'no-take' zones are helping endangered fish to rebound
Jim also did an impromptu interview for the Keynoter newspaper here in the Keys with Kevin Wadslow. Paul Humann and others participated in this interview as wel. The focus was on the post International Coral Reef Symposium Field Trip discussed in this Enews edition. The story link is not yet posted but will be within the next few days from here - http://www.keysnet.com/
REEF Director of Science, Dr. Christy Pattengill-Semmens, and Grouper Moon Scientists, Dr. Brice Semmens (NOAA) and Dr. Scott Heppell (Oregon State University), participated in the Gulf and Caribbean Fisheries Institute (GCFI) meeting last month in Guadeloupe. This annual meeting brings together scientists, fishermen, resource agency managers, and marine conservation organizations to present and discuss current topics and emerging findings on coral reef resources of the tropical western Atlantic waters. Christy presented preliminary results from an analysis of data from the Florida Keys National Marine Sanctuaries no-take sites (Sanctuary Preservation Areas) as part of the Marine Protected Areas session. Christy also represented
REEF during the special session on Marine Invasive Species. She presented an overview of the role that REEF's outreach programs and large corps of volunteer divers have played to better understand the impact of the Indo-Pacific Lionfish on western Atlantic reefs and to help slow the invasion of this unwanted species. Christy also participated in a panel discussion that followed the session.
Both Brice and Scott presented recent Grouper Moon Project results during the Spawning Aggregation session. Thanks to funding from the Lenfest Ocean Program at the Pew Charitable Trusts, our grouper work in the Cayman Islands has greatly expanded and includes ground-breaking conservation research. Brice's presentation focused on the expansion of the work to Cayman Brac, an island where the historical aggregation was fished heavily and was assumed to be non-functional. Scott presented exciting findings from a pilot study conducted earlier this year to understand where Nassau grouper larvae go after they are released from the Little Cayman aggregation site.
Active REEF surveyor and Advanced Assessment Team member, Patti Chandler and her husband Scott, recently found a new fish species for Bonaire! Scott and Patti, of ReefNet, were in Bonaire as presenters for the Second Annual Fish ID Challenge. Nearing the end of a lengthy night dive on Bari Reef over sand, in 10 feet of water, something very strange was illuminated by their video lights catching Scott and Patti's eyes. It was a clear fish,1 inch in length, with a rounded tail, and large pectoral fins that practically encircled it, giving it an appearance of wearing a tutu with yellow dots.
The little fish was very active in the water column making photography and videography more of a challenge than usual. This fish was a very young juvenile, more precisely described in the scientific community as post larval in the "settling stage". As they were at a loss for its identification, photos of the strange little fish were sent off for identification to Les Wilk, Head of Scientific Research at ReefNet who in turn sent them to Benjamin Victor, who is the recognized expert for juveniles of any kind, especially larvae. Ben is a frequent poster to the REEF Discussion Forums and has a very useful website, www.coralreeffish.com.
Ben made a positive ID for the wacky little fish. It is a juvenile Reef Bass, Pseudogramma gregoryi! The adult version of the Reef Bass looks totally different. Very few reference guides even mention this obscure but beautiful fish. You can see a photo of the adult at on the bottom of this webpage. The new species was reported on Patti's REEF survey and will be added to the species count for Bonaire. Bonaire's Bari Reef is the ONLY place this fish has ever been reported to REEF in the entire Tropical Western Atlantic! Bari Reef was already the number one reported reef for species diversity in Tropical Western Atlantic and this new species just increases the lead.
The Annual Fish ID Challenge is sponsored by Bonaire Dive & Adventure, Budget Car Rental, ReefNet, and Sand Dollar Condominium Resort for promotion of marine education and conservation.Share on Facebook
Last Summer, REEF friend and world famous painter, diver and character extraordinaire, Ron Steven (aka Rogest), created a brand new piece celebrating the Nassau grouper. Rogest was inspired after talking with REEF scientists about the REEF Grouper Moon Project and the important conservation research being done to study one of the last remaining spawning aggregations of the endangered Nassau grouper. Rogest painted "Grumpy", which features the face of a Nassau grouper, with the tag line "Extinction Makes Me Grumpy". He has since been inspired to create additional pieces with Grumpy. REEF members will have an exclusive opportunity to purchase one of these original paintings later this Spring and Rogest will be donating over half of the proceeds to the Grouper Moon Project. More information coming soon. We extend a big thank you to Rogest for his dedication and passion for REEF's marine conservation efforts. The artwork is also being featured on T-shirts available for sale in the REEF Gear Store.
On July 17th, Maui celebrated its tenth year as part of the the Great Annual Fish Count (GAFC) with a great event at the Honolua Bay Marine Life Conservation District. As part of the event, several community groups combined to hold a REEF fish count, reef and shoreline clean-up, coral disease survey, and water quality testing. Long-time REEF partners, Donna Brown and Liz Foote, conducted a fish identification class at the Hawaiian Islands Humpback Whale National Marine Sanctuary the week before, and the Sanctuary furnished a van and organized a car pool to travel to the remote location. Trilogy Excursions donated a 64 foot sailing catamaran and crew to carry volunteers into the bay, and later invited the shore-based fish counters aboard for a free lunch. REEF surveyors saw and photographed over 70 fish species, including sea horses, oriental helmet gurnard, spotted eagle ray, and a cute baby frogfish. The GAFC is one of the monthly events hosted by the Maui-based Fish Identification Network (FIN). Visitors and new comers are welcome to attend monthly fish counts by contacting: Maui.FIN@gmail.com
Winter full moons mean that it's grouper spawning time! Since 2001, REEF has led the Grouper Moon Project, a multi-faceted, collaborative research effort with the Cayman Islands Department of the Environment (CIDOE) aimed at better understanding Nassau grouper reproduction and the role that marine reserves can play in the long-term protection of this endangered species. Our research focuses on Little Cayman, which has one of the largest (and one of just a few) known remaining aggregations of Nassau grouper in the Caribbean. We estimate that between 5,000 and 7,000 Nassau grouper come to the site to spawn. Thanks to funding from the Lenfest Ocean Program of the Pew Charitable Trusts, NOAA Coral Reef Conservation Program, and the Disney Wildlife Conservation Program, REEF and our partners at CIDOE and Oregon State University have used state-of-the-art technology, as well as good old fashioned diver surveys, and the research has yielded ground-breaking results. In 2003, the Cayman Island Marine Conservation Board instituted an 8-year fishing ban on Nassau grouper at all known aggregation sites in the Cayman Islands (both current and historic). This ban expires later this year and new legislation is being developed. We are rapidly compiling the results of our research, which will provide the Cayman Islands government guidance on how to best protect this important coral reef fish.
Earlier this month, we had a small team in the field- Dr. Selina Heppell (OSU researcher), Stephanie Archer (OSU graduate student), and Brenda Hitt (long-time REEF Grouper Moon volunteer). They witnessed spawning on two nights following the January full moon. We expect February to be the "main" spawning month (based on past research, we know it has to do with when the full moon is in relation to the winter solstice). A much larger team of researchers and volunteers will be on the island to conduct a full suite of research projects. We will also be producing several outreach products aimed at promoting the management and conservation of these spawning aggregations. Stay tuned for more information on this exciting and important marine conservation research. In the mean time, to find out more, visit the Grouper Moon Project Webpage. To see video of the aggregation during the day, check out this video on YouTube taken last year. If you would like to support this critical marine conservation research, please donate today through the REEF Website or call REEF HQ at 305-852-0030.
We are pleased to announce the 2012 REEF Field Survey trip schedule - check it out online at www.REEF.org/trips. We have 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 instructors lead these trips, and each features daily classroom seminars and a full diving schedule. 2012 destinations include: Nevis, San Blas Islands in Panama, Dominica, Belize, San Salvador in the Bahamas, Sea of Cortez, Hornby Island in British Columbia, Bermuda, the British Virgin Islands, and Cozumel.
Some call them webinars. We call them Fishinars! These free online training sessions provide fishie fun in the comfort of your own home. Fishinars are open to divers, snorkelers, and devout landlubbers alike. Anyone wanting to know more about underwater life is welcome to join in. Participation is free but you need to register for each session you want to attend. No special software is required, just a web browser. You don't need a microphone or a webcam to be able to participate. Great for first-timers or those wanting a review. These short (one hour) webinars will teach you the finer points of identifying fish and invertebrates underwater. Upcoming webinars are given below. Visit the Webinar Training page (www.REEF.org/resources/webinars) to register for one or more sessions. Also check back often as more sessions are being added. We have also posted archives of past webinars on the Webinar webpage, so if you can't join in live, you can watch it anytime.
THE NORTHEAST'S DIRTY DOZEN -- Thirteen of most commonly seen fish swimming around those cold NE waters. Instructor: Jonathan Lavan, REEF Expert and fish geek -- Wednesday, January 11th at 5pm PST / 8pm EST
LOOKALIKES? LOOK AGAIN! -- We will walk you through some of the most similarly-appearing fish in the Caribbean. Instructor: Alecia Adamson, REEF Staff -- Tuesday, January 17th at 5pm PST / 8pm EST
I WISH THEY ALL COULD BE CALIFORNIA FISH -- Through a series of 5 shorter classes, learn the most commonly seen fish in both Northern and Southern California. Instructor: Keith Rootsaert, REEF Expert and fish geek -- Monday, January 9th at 7pm PST: Rockin' Rockfish; Tuesday, January 10th at 7pm PST: Scalawag Sculpins; Monday January 16th 7pm PST: Wrasse, Bass - Nobody Rides for Free; Wednesday January 18th 7pm PST: Pesky Perch; Thursday January 19th 7pm PST: Odds 'n' Ends 'n' Fish without Feathers
CARIBBEAN CRYPTICS -- Those elusive cryptics! Some of the less obvious suspects that live on the reef. Instructor: Jonathan Lavan, REEF Expert and fish geek -- Wednesday, February 15th at 6pm PST / 9pm EST
PACIFIC NW ADVANCED FISH ID -- Some of the least common suspects that are seen in the Pacific NW. Taught over three sessions. Instructor: Janna Nichols, REEF Staff, Instructor and fish geek -- Tuesday, February 21st at 7pm PST - Part 1; Wednesday, February 22nd at 7pm PST - Part 2; Thursday, February 23rd at 7pm PST - Part 3
NOT EXACTLY BUMS: FISH THAT LIVE UNDER FLORIDA'S BLUE HERON BRIDGE -- The Blue Heron Bridge in Florida might not seem at first glance like the most exotic dive spot in the world, but the fish that are found here can be quite unusual! Instructor: Lureen Ferretti, REEF Expert and fish geek -- Wednesday, February 29th at 5pm PST / 8pm EST
PERPLEXING PARROTFISH -- Those perplexing parrotfish! Wouldn't you like to know how to tell them apart? Instructor: Tracey Griffin, REEF Expert and fish geek -- Wednesday, March 14th at 5pm PST / 8pm EST
Earlier this month, for World Oceans Day, the Curtis and Edith Munson Foundation celebrated by pledging to match contributions to REEF dollar for dollar, up to $30,000! Our campaign to raise funds for protecting Nassau Grouper, controlling invasive Lionfish, and inspiring citizen science through the Volunteer Fish Survey Project is off to a great start. But we still need your help to reach our goal in the next 30 days. If you haven't yet had a chance, please contribute today. You can double your donation in the upcoming month by contributing online through our secure web form. Or you can print the donation form and mail or fax your donation, or call our staff at REEF headquarters (305-852-0030).
Contributions from members like you fuel the success of our programs. With your donation, we can expand our new online "Fishinars," which are growing rapidly in popularity. We can continue to fund lionfish education and outreach efforts, such as the Lionfish Cookbook, training and handling workshops, and derbies. Our staff can also keep working with Cayman Islands officials after the recent victory that extended the ban on fishing in Nassau Grouper spawning aggregations. These are just some highlights of REEF accomplishments that are funded by individual contributions. With a chance to double your donation, no gift is too small!
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.