Marine Life & Conservation
Renewing our Coral Reefs

With the mass destruction of coral reefs around the world due to climate change, destructive fishing methods, irresponsible boat anchoring, pollution or just careless divers, the short of it is, we are loosing a significant percentage of reef every year. There are many facts and figures on many different web sites, all putting some sort of spin on what we have lost and what we are about to loose in the future. Whatever the figures, the fact remains that we are loosing a unique and incredible part of this world’s ecosystem. I’m not just being sentimental here; the World Meteorological Organization says that tropical coral reefs yield more than US$30 billion annually in global goods and services, such as coastline protection, tourism and food.
As divers, many of us have seen the loss ourselves, returning to areas we visited years previously, only to find the coral dying or dead and not a fish in sight except perhaps for the lonely few.
There are people in the world taking a positive stance against this who are not only contributing greatly to the growth of new reefs but also helping people, locals and visitors, to feel some sense of ownership and take part in the saving of our seas.
This, on the face of it, is good news, but let’s not fall into the trap of thinking that when it all goes pear shaped we can simply re-build. We can’t. This article is about restoration, not creation.
THE GILI ECO TRUST (www.giliecotrust.com)
The trust was created in 2001 by the dive shops on Gili Trawangan to support SATGAS, an association of local security which was struggling against dynamite and cyanide fishing and its disastrous effects on the coral reefs.
However, because of all the factors of destruction that touch coral, protecting the reefs is not enough. In 2004 the Gili Eco Trust launched its cutting-edge Coral Reefs Restoration Program based on the BioRock technology.
BioRock technology relies on a very simple principle: reproduction by electrolysis of the natural reaction occurring between coral, sea water, the sun and dissolved minerals. A metal structure is installed on the ocean floor. A low voltage electric current, which is totally harmless for any organism, is passed through the structure and leads to electrolysis, causing a calcareous precipitation on the whole structure. This not only avoids the unwanted appearance of rust which would weaken the structure, but, as coral’s skeleton is made of calcium, the structure will, thanks to this reaction, become a favourable base upon which coral may develop.
Loose corals are then manually attached to the structure and typically grow 2 to 6 times faster than usual and are more resistant than under normal conditions, allowing the ecosystem to replenish itself and develop. The corals that are attached come from reefs in the surrounding area that were broken for various reasons such as unaware divers, strong waves or dropped anchors.
BioRock technology’s electrolysis is catalysis of the natural reaction and not only a simple reproduction, as this electrolysis enables a coral’s development to be 2 to 6 times faster than in usual conditions. Normally coral grows only a few centimeters per year and so quicker growth is an efficient way to restore reefs. Moreover coral on BioRock structures grows stronger and is more resistant to the hazards it faces.
Hard corals are not the only ones to grow on BioRock structures: tunicates, bivalves, sponges and soft corals also come to develop at speeds higher than the average. On a BioRock structure, their survival and resistance rate is 20 to 50 times higher than in the natural environment.
Delphine Robbe, from France, is a Gili Eco Trust Coordinator. This is her blog.
The 8th Indonesian BioRock Coral Reef Restoration, Fisheries Habitat Restoration, and Shore Protection Training Workshop, was held at Gili Trawangan, Lombok, from November 12th-18th 2012, with the kind support of the Gili Eco Trust and the entire Gili Trawangan community.
This was the 4th BioRock workshop I had organized and I was feeling a bit stressed out. Not as usual with a coming workshop, stressing about the organization of the event, but because my new born son was only 2 months old and I didn’t know how I would be able to manage a baby and a workshop at the same time. Evan is now my new priority, just before Coral Reefs and my job as Gili Eco Trust Coordinator.
I organize BioRock workshops every 2 years. The last one in 2010 was a great success, but how tiring it was for me to run around, organizing day by day all the activities for the 78 participants. Welding BioRock structures, sinking them, catching up on construction when participants are listening to Tom Goreau’s Lectures lectures, getting the program done for every day jobs that the participants are doing, making sure every group learns the same and have a look at all the different maintenance and construction jobs that BioRock involves…etc
How would I deal with all of that with Evan who needs me for feeding and mainly for love to grow up peacefully? For once I asked for HELP and I delegated! So many people, friends and family had been telling me that I should get some help, delegate and in doing so minimize my stress input, so I finally did it and learned from it! I nominated 12 team leaders to take the 4 teams of BioRock participants into all the activities, I supervised most of the construction but I mostly told the team leaders every night what they were supposed to do the next day. I set the program up for each day and went to give main briefings to the teams going diving, but I was not there all the time and everywhere. I did the first 2 days for all registration, payments and dealing with all the officials and everyone’s bookings. Then I would go there with Evan to set the program up and brief the team leaders. And yes everyone learned everything that they were supposed to learn during that workshop and only positive feedbacks came to us.
The head of the 3 Gili Islands opened the workshop, along with Pak Yes, Head of the Marine Affairs and Fisheries Department from Kupang, Nusa Tenggara. Bapak Arifin Bakti, lecturer at Mataram University (UNRAM) also gave a speech of introduction and I introduced everyone with the program of activities that will be done during this workshop week.
The youth association of Gili Trawangan and the staff of the BKKPN office for Gili Matra, Marine Protected Area, were presented to all participants as the future of the Gili Islands. An uncertain future, as it is difficult to balance tourism and environment protection, but some from local communities want to push towards Eco tourism and coral reef protection and restoration.
More than 83 people participated in the Workshop, including a wide range of divers, students, conservationists, scientists, engineers, artists, doctors, and lawyers from all over the world.
As usual, a good majority was from Indonesia. They included more than 10 students in Marine Science, Biology, and Fisheries at Mataram University, Lombok, all of who were trained as divers for the workshop. All of them are planning BioRock related research projects. There were also participants from Bali, Java, Sulawesi, and other islands.
Local people from Gili Trawangan island came to learn about the Biorock technology that they have seen installed around their island over the last 8 years; members of the island Youth Association “Remaja, Karang Taruna”, SATGAS (community ocean patrol that prevents fishing with bombs and poisons, and anchoring in restricted zones), staff from all Gili Trawangan Diveshops, locals and westerners.
Besides Indonesia, participants came from many parts of the world such as Australia, Germany, France, Morocco, Holland, USA, England, Mexico, Sweden, Philippines, Hawaii, Singapore, Austria, and Greece.
Students learned all aspects of BioRock® Technology theory and practice, including the fundamental physics, electrical engineering, mechanical engineering, chemistry, and biology, along with hands-on training in design, construction, installation, monitoring, maintenance, and repair. They saw documentary films and heard lectures on the latest developments in marine ecosystem restoration. They saw the dramatic growth of corals and fish populations on BioRock reefs ranging in age from 0 to 8 years, and the BioRock shore protection projects that are growing back beaches on the north end of the island that had been severely eroding.
13 new BioRock reefs were designed, built, installed, and planted with corals by the students, bringing the total of BioRock reefs at Gili Trawangan up to nearly 78. These are located in front of dive shops, restaurants, and hotels of Gili Trawangan. The total Gili reef restoration structure is now a whole dive site and many spots for snorkelling where tourists can enjoy observing BioRock structures and their inhabitants. The BioRock projects at Gili Trawangan now rival the Karang Lestari BioRock project in Pemuteran, Bali as the world’s largest and most spectacularly successful coral reef restoration project.
BioRock is the only method that increases coral growth rate and resistance to environmental stress, so BioRock reef corals bleach less, recover faster, and have higher survival from global warming-caused heat stroke. This course came at a very critical juncture, because 2012 is the hottest year in history, and severe coral bleaching took place across the entire Indian Ocean, South East Asia, the West Pacific, Persian Gulf, and Caribbean this year, including Lombok.
Water temperatures throughout Indonesia and many of the most important coral reefs in the world, now remain several degrees warmer than average, and will start to bleach in the next few months if this continues. If it is as severe as is expected, only places with BioRock Coral Arks will have much coral, fish, and beaches afterwards.
BioRock graduates are now trained to restore coral reefs and fisheries, and grow back severely eroding beaches. They can apply these skills as soon as local communities, government policy makers, and international funding agencies recognize the critically urgent need to restore rapidly vanishing coral reefs and the fisheries, shore protection, tourism, and biodiversity services they provide over 100 countries, before they vanish.
Only those with proper BioRock training have the knowledge and skills to implement new projects, and will receive full support with advice, advanced training, and materials needed to start new projects designed to save marine ecosystems from the runaway effects of global warming, global sea level rise, pollution, and unsustainable over-exploitation.
(You can learn more about BioRock at www.giliecotrust.com)
Marine Life & Conservation
GROUNDTRUTH collaborates with PADI on pioneering submersible collection

GROUNDTRUTH, a story-led material innovation company that is fast forging a reputation for its next generation travel gear, is thrilled to announce its collaboration with the world’s largest diving association – PADI – on a range of pioneering submersible bags.
Entitled UNDA, Latin for wave, the collaborative range sets a new standard in sustainable design, with the GROUNDTRUTH team transforming the standard drybag into a future-focused travel companion, representing the two partners’ shared philosophy of ocean and environmental protection.
The 100% recycled bag range’s proprietary material is made from plastic waste including ghost fishing nets, post-consumer Nylon and plastic bottles. It is used alongside GROUNDTRUTH’S own patent-pending GT-OCO-CO2® hardware range, made from recycled plastic and captured CO2 emissions.
With a presence via 6,600 dive centres and resorts in 184 countries and territories throughout the world, PADI has amassed a hugely engaged community of 30 million+ divers to date. This collection creates a platform to highlight the shocking / mind blowing impact of plastics affecting our blue planet while actively contributing to its removal – empowering people from around the globe to take meaningful action to protect what they love.
“We are incredibly excited to partner with PADI on this project which will be launched via PADI’s global diving network and via our own channels,” said Georgia Scott, Co-founder and CEO of GROUNDTRUTH. “Ghost fishing nets account for over 50% of all plastic waste in our oceans, causing irreversible damage to global marine ecosystems. By combining our expertise in innovative design with PADI’s dedication to Ocean conservation, we aim to make a significant positive impact through the repurposing of these harmful plastics. GROUNDTRUTH was created with the value that all consumer products should contribute to a safer planet.”
“We are proud to collaborate with GROUNDTRUTH, as this partnership exemplifies our shared mission to mobilize the global community of Torchbearers who actively explore and protect our ocean,” said Lisa Nicklin, Vice President of Growth and Marketing for PADI Worldwide “Together, we’ve revolutionized the way that divers can carry around their essentials while elevating their commitment to protecting the place they love. It’s truly a product line designed by divers, for divers.
The UNDA range will be available for pre-order through www.groundtruth.global from the 3rd of February 2025 with PADI members being given the first opportunity to buy via their channels. Join us in this pioneering initiative to explore, protect, and preserve our oceans for future generations.
For more information about the GROUNDTRUTH x PADI collaboration, click here.
About GROUNDTRUTH®
GROUNDTRUTH sparks a new generation of travel gear that enables and accelerates positive change, making a transformative impact to industries, processes and people. As a green technology business and lifestyle brand, at the heart of GROUNDTRUTH is the exploration and development of new materials crafted from the world’s pollution and plastic waste. Their patent-pending GT-OCO-CO2® hardware range, created from recycled plastic and captured CO2 Emissions, is a world first.
Utilising their origins as investigative documentary filmmakers, sisters and founders Georgia, Sophia and Nina Scott, have hand-built GROUNDTRUTH’s unique Bluesign® certified supply chain ecosystem with partners who share the brand’s ethos for people and our planet. Their mission and products are created to support and empower individuals who are making a difference, both in their communities and around the world.
About PADI®
PADI® (Professional Association of Diving Instructors®) is the largest purpose-driven diving organization with a global network of 6,600 dive centers and resorts, 128,000 professional members and more than 29 million certified divers to date. Committed to our blue planet, PADI makes the wonder of the underwater world accessible to all, empowering people around the world to experience, explore and take meaningful action, as Ocean TorchbearersTM, to protect the world beneath the surface. For over 50 years, PADI is undeniably The Way the World Learns to Dive®, setting the standard for the highest quality dive training, underwater safety and conservation initiatives while evolving the sport of diving into a passionate lifestyle. For divers by divers, PADI is obsessed with transforming lives and, with its global foundation, PADI AWARETM, creating positive ocean change. Seek Adventure. Save the Ocean.SM
Marine Life & Conservation
Go Diving Show 2025 UK Stage Speaker: Lloyd Rees-Jones

Sharks dwell off the UK coastline, but did you know there is one that glows in the dark? Join Lloyd Rees-Jones at this year’s GO Diving Show in March when he takes to the UK Stage to showcase a very different side of our marine life when viewed in a different light (no pun intended!).
Lloyd Rees-Jones is a HSE Part 4 Media Diver, PADI Master Scuba Diver Trainer, underwater videographer and seasoned volunteer with Neptunes Army of Rubbish Cleaners (NARC). For almost 20 years he has been completely captivated by three shore diving locations in Pembrokeshire, West Wales, and every year he discovers something new that fills him with excitement for the season ahead and keeps him going back year after year.
Ultraviolet night diving in Pembrokeshire
Lloyd’s talk on the UK Stage will be about marine fluorescence and the nocturnal activities of our favourite coastal species, and will give a glimpse on how ultraviolet night diving has the potential to rekindle our passion for night diving – and also the hidden benefits it can bring to our UK diving adventures.
Go Diving Show 2025 takes place at the NAEC Stoneleigh Park, Coventry, on the 1st -2nd March.
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