Coral Reefs are a critical ecosystem in the marine habitat that also have influence over a host of global natural processes. Despite covering less than 1% of the ocean floor, coral reefs are involved in the life history process of over 25% of marine life. To date, using data measured since 2009, we have already lost 14% of the world’s coral reefs and are at risk of losing up to 90% by the year 2050. Coral reefs also provide huge benefits to human populations physically through shoreline and storm protection. A healthy coral reef can reduce up to 97% of wave energy, which has a huge impact on coastal communities. There are also massive economic benefits, with coral reefs generating approximately $2.7 trillion dollars worth of utility to different global financial markets, including tourism, fisheries, education, engineering, and other ecosystem services. This is why conservation and restoration programs for these critical marine habitats are so important. Using methods adapted from the natural reef systems, Coral Vita is attempting to change this and augment them with cutting-edge science and technology to reverse this trend, thus preserving and bolstering coral reefs for the current and future generations.
Aqualink’s partner, Coral Vita, creates land based coral farms that incorporate breakthrough methods to restore reefs in the most effective way possible. Their scientific team has partnered with leading marine institutes, utilizing techniques to grow coral up to 50x faster while boosting their resiliency against the warming and acidifying oceans that threaten their survival. They then outplant these corals back into degraded reefs, bringing them back to life.
Coral Vita’s land-based farms not only supply corals for restoration projects, but also function as education centers for local communities as well as eco-tourism attractions. They can also scale to make a significant ecological difference, with a single farm able to grow millions of resilient corals for distribution around a region.
Joe Oliver, the Director of Restoration Operations at Coral Vita, describes: "Our main goal is simple, we want to put ourselves out of business. We are attempting to foster an economical environment in which reefs are valued, protected, and restored for all of the tremendous benefits we gain from healthy coral reef ecosystems. We aim to change the mindset of how these resources are utilized, influencing major business strategies, governance policies and protections through demonstrating the ability to produce resilient reefs in large areas to combat the accelerating loss of these critical habitats. We do this by applying the best practices from research science, tech development, and already successful practical restoration techniques".
Coral Vita is currently working to restore reefs in the Bahamas, Dubai/UAE, and Saudi Arabia and have already planted over 10,000 corals in the Bahamas alone, with the aim of expanding into as many areas as needed. The goal is to be able to produce corals that are hardened to future conditions they may face to maximize long-term impact and increase the volume and scale to surpass the staggering rate of loss that is observed in the wild.
At Coral Vita’s facility in Freeport, Bahamas, they are currently restoring reefs that have died off due to a multitude of factors, including thermal stress, bleaching, and disease, by utilizing their land-based techniques and ocean-based restoration solutions. The reefs in their work areas have critical significance as fisheries habitat, tourism value, and biodiversity refuges, and act as a protective layer against storms and hurricanes. They collect a subset of resilient corals from the wild reefs, transport them to their facility for propagation via a method called micro-fragmentation, grow them in large numbers at their land-based facility, and then return them to the reefs they originated from by securing them to the seafloor using novel and established techniques.
The real time and historical temperature log data from the Smart Mooring buoy donated by Aqualink is vital in monitoring the conditions during late Spring and Summer, where elevated water temperatures lead to the onset of coral bleaching events. Coral bleaching is a stress response process in which the corals expel their symbiotic zooxanthellae (algae that live in partnership within the coral tissue) that is typically driven by heat stress and elevated ocean temperatures. When this occurs the corals are not dead but are in a state of starvation that can cause them to be more susceptible to disease or other detrimental conditions.
- "We use the data in the Aqualink platform to track the progression, duration, and end of these events to help guide our restoration practices. The temperature data is used to refine our handling of coral at the optimal transition and acclimation time. This helps us refine and optimize our processes to ensure the corals we are restoring are given the best opportunity to acclimate back to the wild reef and further augment their chances of long term success. Records are also used for establishing guardrails on when it is too hot to be planting corals, and when conditions have returned back to ideal, we resume coral restoration projects. This is an important part of the process because we want to ensure the corals have ample time to grow and establish themselves back on the reef before the onset of stressful conditions begins during late spring and the beginning of summer. The smoother we are able to make this transition for the corals, the more likely they are to succeed over time", Joe Oliver says.
The Coral Vita team are constantly assessing the annual data log and progression of temperatures throughout the season to guide the development of their outplant windows and processes. A working example is from the 2023 data record in which they were able to correlate the time corals were out planted vs the rate of temperature change to alter when and where they plant corals back on the reef for maximal success. Using the buoy data, they determined that they needed to change their cutoff date to June 1 or when ocean temperatures reach 27°C for the cessation of planting operations to ensure the corals have enough time to take hold and grow before the onset of higher temperatures and the associated bleaching phenomenon.
This project is of the utmost importance due to the incredible loss of coral coverage in the past 20 years, which has had a significant impact on local marine biodiversity, health, and the blue economy. This is compounded by the record high ocean temperatures in the summer of 2023, where many areas have seen a 50-99% loss of critically endangered coral species like Acropora Palmata and Acropora Cervicornis, which are only found in the Western Atlantic and Caribbean. Despite the catastrophic losses seen in Coral Vita's region in the Bahamas, with seemingly complete mortality of certain species on the reefs where they work, they are observing higher survivorship rates among the tens of thousands of corals they outplant. This gives them hope that with further efforts and an increase in scale, they can turn the tide against the loss of these critical species and habitats.
Another project that Coral Vita is using the Aqualink partnership for is in their planning for field operations. Almost all of their scientific and restoration field work requires them to operate by boat to reach thier project sites, and they conduct the majority of their field operations while SCUBA diving. From the process of identifying potentially resilient broodstock (the corals they select to propagate) and selecting the sites for restoration to conduct before and after surveys to monitor the impact and success of their restoration efforts and the physical planting of the corals back on the reef, their efforts are completely at the mercy of the oceanic wind and wave conditions. For the safety of their dive teams and the corals themselves, it is imperative they have the most accurate picture possible of the conditions at sea to guide their efforts to minimize risk and maximize success.
- "We use the historical data feature in parity with forecast reports to watch for patterns that further refine our fieldwork operations model and allows us to expect and plan for conditions in advance. Predictive models and oceanic conditions forecasts are notoriously difficult to attain a high degree of confidence and accuracy, especially the further in the future we are attempting to plan our operations. We are able to take the historical wind and wave data records and compare them over time with the observed conditions, this allows us to predict with higher confidence the likely conditions we can expect based on current wind wave forecasts for operational planning", Joe Oliver says.
They take a combination of historical data and current predictions to refine Coral Vita’s planning process and schedule operation more appropriately. This allows them to be more rigorous with their dive planning and scheduling along with providing a baseline for training their Freeport staff how to utilize this information in advance of field operations.
- "Without such accurate local data, we would often be guessing whether or not dive operations were possible and would lose a significant amount of time having to venture out only to call off operations or to shift plans and functional missions", Joe Oliver explains.
Using the data from Aqualink to plan for field operations is inherently important because without field operations Coral Vita would not be able to return corals to the reef and bolster their reef restoration projects.
- "The real time data allows us to make decisions before and the day of operations to ensure mission assignments and planning match the conditions at sea. Each time we are able to know whether or not field operations can be conducted as planned saves us hours of productivity and reduces overall inefficiency, fuel burned, time lost, etc. This data also allows us to make assessments while in the field on whether we can continue planned operations or not and allows for more robust contingency planning and shifting missions to match what the conditions will allow", Joe highlights.
The best working example of utilizing Aqualink for planning field operations is when it is time for coral spawning season. Corals spawn in very restrictive timeframes, typically only a few hours during a few nights in July, August, and September. These windows are pretty well defined, but almost all occur at night when it is impossible to assess ocean conditions visually. Without accurate real-time data, Coral Vita's team would be flying blind trying to conduct dive operations at night when the risk factors are multiplied. Having access to high-quality ocean conditions allows them to operate at night and utilize one of the most robust natural coral restoration strategies by capturing wild coral spawn and augmenting the success of these processes.
“The data utilized by the Sofar buoy and Aqualink dashboard have played a critical role in Coral Vita’s ability to execute successful restoration efforts in the Bahamas and globally as we expand our facilities, reach, and restoration projects. Without these resources we would not have made as much progress as rapidly as we have, which is helping to push the drive to make conservation and restoration of coral reefs a forefront priority on a global scale. We look forward to continuing our partnership in the future to continue pushing for a healthier and more vibrant future for the oceans, marine life, and humans that are all reliant upon these ecosystems.” - Joe Oliver, Coral Vita
Joe Oliver, Coral Vita, April 28, 2024
Photo credit: All photos are sourced from and owned by Coral Vita.