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Scuba divers ‘avert ecological disaster’ by removing invasive species from Florida waters

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Two Florida scuba divers who were on a dive beneath Palm Beach County’s Blue Heron Bridge during the Thanksgiving holiday spotted a bright yellow fish approximately four inches long that they had never seen before.

Although some divers might have just admired it, taken a photo and kept on swimming, Deb Devers and Lureen Ferretti reported it to the Reef Environmental Education Foundation (REEF) — a Key Largo-based non-profit organization that serves as a regional clearinghouse for control of exotic marine fish species.

“They weren’t sure what it was, but they knew it was something that doesn’t belong here,” said Las Akins, director of special projects for REEF.

Akins said their instincts were correct: the fish was a mimic lemon peel surgeonfish, also known as a chocolate surgeonfish, native to the Indo-Pacific and the first of its kind documented in Florida waters. Devers kept track of the fish, and last month, she and Akins captured it alive using hand nets. It was sent to the Ripley’s Aquarium of Canada to be displayed as an educational tool on the hazards of invasive species.

Akins said the removal might have averted an ecological disaster similar to the spread of lionfish — another Indo-Pacific invader now well-established in the Western Atlantic, Gulf of Mexico and Caribbean. Lionfish — first sighted off Dania Beach in 1985 and believed to be an abandoned aquarium pet — have been blamed for wiping some local reef systems clean of native tropical fish.

“We don’t know what the effects would have been if the fish had become established and began reproducing,” said Akins. “But if we wait to find out, then it’s too late.”

According to REEF, taking out the surgeonfish was the third successful preemptive strike against a non-native marine fish species in Florida coastal waters.

In 1999 and 2002, REEF staff and volunteers captured four large Indo-Pacific batfish from Molasses Reef in Key Largo. In 2009, they removed a whitetail dascyllus damselfish from the east side of the Blue Heron Bridge. In 2012, Miami divers Greg Caterino and Wayne Grammes speared an exotic humpback grouper on a reef off Biscayne National Park and turned the carcass over to REEF. Akins said none of those three species are known to have reappeared in Florida waters since their removals.

“Some people might say, ‘Oh big deal, we took this little fish out of the water,’” Akins said. “But that’s the way the lionfish got started. If only we could have taken the first few lionfish out of the water in the first place. We’re relying on divers, snorkelers and fishermen to be our eyes and ears on the water. It’s a perfect example of how early detection and rapid removal can be successful in stemming an invasion.”

Releasing non-native fish into Florida waters not only is harmful, but also illegal. The Florida Fish and Wildlife Conservation Commission encourages pet owners who need to find new homes for their fish or other exotic animals to call the FWC’s Exotic Species Hotline at 1-888-IveGot1.

Anyone who spots a strange-looking fish that they suspect is invasive is advised to take a photo and report the sighting at reef.org.

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Get moving with the new RAID DPV training programs

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The thrill of speeding through the water behind a diver propulsion vehicle (DPV) is an experience that really gets the blood racing. Using a DPV provides divers both immense fun and the means to achieve goals that would be impossible without their use.

RAID is proud to announce the new two-tier DPV training program with certifications for DPV and Advanced DPV.

Why DPV and why now?
Recreational and technical divers are using DPVs to access sites that would be difficult to reach and explore using traditional propulsion methods; to help propel large amounts of heavy equipment; to increase the safety of dives in areas of strong current; or just for the pure exhilaration of shooting through the water at speed and performing underwater acrobatics.

By extending your capabilities and extending your range, using a DPV opens new vistas for exploration and fun.

DPV
This certification option is aimed at the recreational diver who wishes to learn how to use a DPV to enhance their diving by using mainly natural navigation.

Advanced DPV
This certification option is available to anyone who is familiar with longhose configuration, has logged a minimum of 20 dives and is certified as Navigation specialty divers.

This certification option is aimed at the slightly more experienced diver with preexisting navigational training and diving on a single, twin or sidemount setup with a longhose. Although this level is slightly more challenging, the more advanced navigation exercises provide an important base for more complex types of DPV diving within a team.

PREREQUISITES
You must:

  • Be a minimum of 12 years old.
  • Be certified as RAID Open Water 20, Junior Open Water or equivalent.

Just visit www.diveRAID.com to put some extra dash into your dives.

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Marine Life & Conservation

Beers raise cash for ocean clean-up

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The Driftwood Spars Brewery, a pioneering microbrewery based on the North Cornwall coast, is donating a percentage of all profits from its Cove range of beers to Fathoms Free, a certified charity which actively cleans the ocean around the Cornish peninsula.

Each purchase of the small-batch, craft beers – there are four different canned beers in the Cove range – will help generate funds to purchase a remotely operated vehicle (ROV) and fund retrieval dives; every brew will raise the equivalent cost of a fully-funded dive. 

Fathoms Free is a Cornwall-based charity whose day-to-day mission involves dives from their fast-response specialist vessel to recover ghost fishing gear; abandoned nets, pots, angling equipment and other plastic causes severe damage to the marine environment and the death of countless seabirds, seals, dolphins and other sea life.

The campaign to raise funds for an ROV is a new initiative which will take the clean-up work to a new level; the highly manoeuvrable underwater vehicle will be used to scour the seabed, harbours and remote parts of the coastline for abandoned fishing gear and other marine litter.

Project Manager Natallia Paliakova from Fathoms Free said: “Apart from helping us locate ghost gear underwater, the ROV will also be capable of recording underwater video which is always great for raising awareness about marine pollution issues.”

She added: “We are really excited to be partnering with The Driftwood Spars Brewery and appreciate the proactive support of Mike and his team in bringing the purchase of an ROV a step closer to reality.”

Head Brewer Mike Mason personally approached the charity after their work was featured on the BBC 2 documentary, ‘Cornwall with Simon Reeve’.    

He said: “As a keen surfer I am only too aware of the problem of marine litter and had heard about Fathoms Free, but seeing them in action prompted me to find a way of contributing. The scale of the challenge is scary, but the determination of organisations like Fathoms Free is inspiring.”

Photo by Beagle Media Ltd

Photo by Beagle Media Ltd

The Driftwood Spars Brewery was founded in 2000 in Trevaunance Cove, St Agnes; the microbrewery is just a few steps away from it’s co-joined brewpub, The Driftwood Spars; both pub and brewery are well-regarded far beyond the Cornish cove they call home. 

You can hear the waves and taste the salt on the air from the door of both brewery and pub, and the rough seas along the rugged North coast often throw up discarded nets and other detritus; Louise Treseder, Landlady of The Driftwood Spars and a keen sea swimmer, often collects washed up ghost gear on her daily beach excursions.     

Louise commented: “This is a great partnership to support a cause close to our hearts – I know the money we raise will have a positive and lasting impact. The Cove range was inspired by our unique surroundings and the artwork – by local artist Jago Silver – reflects that. Now donations from each purchase will contribute towards the vital ocean clean-up taking place right on our doorstep.”

The Cove range can currently be purchased online here, and is available in good independent bottle shops in Cornwall.

To find out more about Fathoms Free visit their website here.

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