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The Data: Research dives in the Sargasso Sea result in the discovery of new species and confirms new ocean zone

Project Baseline’s collaboration with The Nekton Mission, GlobalSubDive, GUE divers, and scientists from Stanford and Oxford Universities on the 2016 XL Catlin Deep Ocean Survey and shallow water research may be one of organization’s most fruitful projects to date. The project has yielded nine scientific papers, the discovery of over 100 new species, and the confirmation of the newly discovered rariphotic zone, an ocean zone from 400-1,000 ft/130-300 m deep. Dive into some awe-inspiring data!

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By Amanda White

Bermuda is located in the northwestern Sargasso Sea, about 600 miles east of the closest point of the United States (North Carolina). In 2016, Global Underwater Explorers (GUE) collaborated with Global SubDive (GSD) and The Nekton Mission to conduct the XL Catlin Deep Ocean Survey and shallow underwater research using a team of GUE technical CCR divers and two Triton three-man submersibles around the main island of Bermuda. During the project, GUE volunteer divers and the submersible pilots established 92 Project Baseline stations total at the five dive sites. They also teamed with scientists from several universities, including Oxford and Stanford. Over the 30-day mission, five sites were explored and documented between 15-300 m/49-984 ft; the submersibles were deployed at 300, 200, and 150 meters and volunteer divers at 90, 60, 30, and 15 meters. Data was collected in the form of water samples, stereo video transects, specimen collection, and photographs.

Since the data collection efforts back in 2016, nine scientific papers have been written from the data collected. The papers range in topics from lionfish invading the upper-bathyal zone in the western Atlantic, to the black coral fauna of Bermuda and more. One of the biggest contributions from the mission was the the confirmation of the Rariphotic Zone, a new ocean zone from 130-300 m/400-1,000 ft.


Diver JP Bresser and one of the submersibles during the 2016 XL Catlin Deep Ocean Survey. Image by Graham Blackmore.

The zones are the Altiphotic (0-40 m), Mesophotic (40-130 m), Rariphotic (130-300 m), and the Bathyal zone (300-3000 m).This new zone was first discovered by scientists from the Smithsonian Institute, but the existence was confirmed by the data collected in Bermuda with the discovery of over 100 new species. These include very small animals such as tanaids, dozens of new algae species, larger animals such as black wire coral that can stand up to 2 m high, and at least 13 new crustacean species.

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An article on the  Science Alert website states that: “This [discovery] has led to a hypothesis that the new rariphotic zone may be a refuge for shallower reef fishes seeking respite from the warming waters and coral deterioration caused by climate change.” The discovery and confirmation of this zone is the missing link in understanding the dynamics between the different light zones in the ocean.

The team of volunteer divers collecting data during the 2016 mission to document the health of the ocean around the island of Bermuda. Photo by JP Bresser.

In a press release from Nekton, Alex Rogers, former Scientific Director of the Nekton Oxford Deep Ocean Research Institute (“Nekton”) and Professor of Conservation Biology at the University of Oxford, believes this discovery challenges current assumptions of biodiversity of life patterns. “Life in the shallower regions of the deep sea is so poorly documented it undermines confidence in our existing understanding of how the patterns of life change with depth,” says Professor Rogers.

The tremendous scale of the Project Baseline data collection effort has helped scientists to better understand the state of our oceans, create research protocols, and create an identification guide for biologists, divers, and naturalists. This was all based on the collection and analysis of 40,000 specimens and samples, 15,000 liters of water samples, 240 video transects, and 92 miles of geophysical data, some of which can be seen on Project Baseline’s spatial database and on their YouTube Channel.

This mission in Bermuda, along with the 2017 mission in Fiji, demonstrates how a coordinated team of divers and submersibles can significantly contribute to the scientific studies of both the shallow and deep aquatic environments by collecting massive quantities of usable data.

Header image by: JP Bresser. Dr. Todd Kincaid captures a video transect for scientists to study the health of the Sargasso Sea.


Amanda White is the editor for InDepth. Her main passion in life is protecting the environment. Whether that means working to minimize her own footprint or working on a broader scale to protect wildlife, the oceans, and other bodies of water. She received her GUE Recreational Level 1 certificate in November 2016 and is ecstatic to begin her scuba diving journey. Amanda was a volunteer for Project Baseline for over a year as the communications lead during Baseline Explorer missions. Now she manages communication between Project Baseline and the public and works as the content and marketing manager for GUE. Amanda holds a Bachelor’s degree in Journalism, with an emphasis in Strategic Communications from the University of Nevada, Reno.

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Anniversary Event of the Healthy Seas Foundation Celebrates a Decade of Marine Protection and Industry-Wide Partnerships

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PRESS RELEASE
Healthy Seas

September 20, 2023

Croatia and Slovenia — The Healthy Seas Foundation, a pioneering organization dedicated to marine conservation and education, commemorated its 10-year anniversary with a remarkable three-day event held from September 4th to 6th, 2023. The event brought together a diverse array of partners, collaborators, journalists, and environmental enthusiasts who have collectively contributed to the foundation’s journey towards cleaner seas.

A Decade of Transformation

The anniversary event was a testament to the remarkable achievements of the Healthy Seas Foundation over the past decade. Participants gathered from across the globe to reflect on the foundation’s impactful initiatives, discuss future strategies, and reinforce current partnerships. The event underscored the deep interlinkage between marine conservation and diverse industries, illustrating the power of collaboration in fostering positive change.

Empowering Presentations and Collaborative Networking

Day 1 featured insightful presentations that delved into the history and future aspirations of the Healthy Seas Foundation. Attendees engaged in discussions that underscored the importance of sustainable practices promoting circularity across various industries. The day concluded with a celebratory dinner, providing a platform for networking and idea exchange among partners and collaborators.

Nurturing Tomorrow’s Advocates

Day 2 saw the foundation’s commitment to education and community engagement in action. Collaborating with local school children, the event fostered environmental awareness through interactive activities. An inspiring photo exhibition and a captivating virtual reality experience transported participants into the heart of marine ecosystems, emphasizing the significance of cleaning and safeguarding these vital ecosystems for future generations.

The day also featured a presentation and joint artwork session with Bracenet, a valued partner of the Healthy Seas Foundation. Bracenet showcased the diverse applications of the nets recovered by Healthy Seas, highlighting their transformation from abandoned ghost nets to purposeful creations.

The afternoon of Day 2 witnessed a ghost net retrieval mission led by Ghost Divers from around the world. These volunteer divers demonstrated their dedication to ocean cleanup by removing abandoned fishing nets, a significant threat to marine life, from the seas.

Embracing Circularity: Aquafil’s Sustainable Innovation

Day 3 showcased the Healthy Seas Foundation’s vital partnership with Aquafil. Participants witnessed the collaborative efforts to give discarded nets and nylon waste new life, an embodiment of environmental stewardship and innovation. Through this partnership, some of the fishing nets recovered by Healthy Seas are mixed together with other nylon waste and transformed into ECONYL® regenerated nylon, advancing circular economy across industries.

Celebrating a Decade of Growth

Over the last 10 years, the Healthy Seas Foundation has experienced substantial growth, expanding from 3 partners in 2013 to a network of 150 partners today. The initiative has progressed from 20 activities to an impressive 228, with volunteers increasing from 15 to a formidable force of 350. What initially began in 3 countries has now extended its impactful operations to 20 countries.

Looking Ahead

As the Healthy Seas Foundation envisions the future, the anniversary event serves as a reminder of the remarkable progress of the past decade and the potential for even greater impact in the years to come.

For media inquiries, interviews, or additional information, please contact:

Samara Croci, Communications Manager, Healthy Seas Foundation
samara.croci@healthyseas.org +39 3314436962

About Healthy Seas Foundation:

Healthy Seas is an international non-profit organisation whose mission is to remove waste from the seas, in particular fishing nets, for the purpose of creating healthier seas and recycling marine litter into textile products. The recovered fishing nets will be transformed and regenerated by Aquafil, together with other nylon waste, into ECONYL® yarn, a high-quality raw material used to create new products, such as socks, swimwear, sportswear, or carpets. Since its founding in 2013, Healthy Seas has collected over 905 tons of fishing nets and other marine litter with the help of volunteer divers and fishers.

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