Imagine descending beneath the warm waters of Costa Rica’s Central Pacific coast. Sunlight dances through the water, schools of colourful fish surround the reef, and a curious sea turtle glides effortlessly past. Every dive in Manuel Antonio is different, and that’s what makes this region one of Costa Rica’s most rewarding places to explore beneath the surface.
What does volunteering on a coral restoration project actually look like?
For many people, the idea of marine conservation brings to mind days spent scuba diving over tropical reefs, working with coral and encountering incredible marine life. Those things can certainly be part of the experience.
But real coral restoration involves much more than simply spending time underwater. It involves learning, monitoring, cleaning, recording, maintaining and understanding the ecosystem you are trying to protect.
At Marine Conservation Costa Rica, our coral restoration project in Manuel Antonio gives volunteers the opportunity to experience that work firsthand.
And while no two days are exactly the same, here is an idea of what a day working with a coral restoration project can actually look like.
A conservation dive begins long before anyone enters the water.
The first part of the day is about understanding what needs to be accomplished. That might mean checking coral nursery structures, cleaning nursery areas, monitoring coral fragments, collecting information or carrying out another task required by the project.
Conditions matter too. Weather, visibility, currents and sea conditions can all influence what work can safely and effectively be completed that day.
This is one of the first lessons of marine conservation. We work with the ocean—not according to a perfectly predictable schedule.
Once the day’s objectives are clear, it is time to prepare.
Scuba equipment needs to be organized and checked, but conservation diving can also require additional equipment depending on the task.
The team discusses the dive plan, individual responsibilities and the work that needs to be completed underwater.
Good buoyancy is particularly important. When you are working around coral, you need to be aware of your fins, equipment and body position while concentrating on the task in front of you.
For volunteers who are still developing their diving skills, conservation work can provide a completely different reason to improve. Buoyancy is no longer simply about becoming a better diver. It becomes part of protecting the environment you are working in.
Then comes the part everyone has been waiting for. We head out onto the Pacific.
The waters around Manuel Antonio are a dynamic marine environment. Visibility can change. Currents can change. Water temperature can change. And that makes every working dive different.
Once the team reaches the site, there is a final check of the plan before entering the water. Then the real work begins.
Seeing a coral nursery for the first time can completely change the way you think about coral restoration.
Instead of simply swimming across a reef, you begin looking at individual coral fragments and colonies. You notice their condition. You start recognizing growth. You learn what healthy coral looks like and begin noticing when something has changed.
Coral nurseries provide an environment where selected coral fragments can be cared for and monitored as part of a wider restoration strategy. But nurseries require maintenance. They do not simply look after themselves.
Another important part of restoration is observation.
How are individual coral fragments doing? Are they growing? Is there any visible damage? Are conditions changing?
Monitoring helps conservation teams understand what is happening within a nursery and how corals are responding over time. Depending on the activity and training involved, volunteers may assist with observations, surveys or data collection.
That information contributes to the long-term picture of the project. This is where conservation begins to feel very different from recreational diving. Instead of simply noticing that a reef looks beautiful, you begin looking for patterns and changes. You start asking why.
One of the less glamorous—but extremely important—parts of coral restoration is cleaning.
Marine organisms naturally grow on underwater structures. Algae and other growth can compete for space or affect nursery structures, so regular maintenance is an important part of keeping a coral nursery functioning.
Volunteers may help clean structures carefully while avoiding damage to the coral being grown. It is detailed work. You need control, patience and concentration.
It also quickly teaches an important lesson about restoration. There is no single moment when a coral restoration project is ‘finished.’ Restoration requires continued monitoring and maintenance.
Coral restoration does not happen in isolation. Coral reefs are ecosystems.
Fish, invertebrates, algae, predators, competitors and environmental conditions all interact. Learning to identify marine life therefore becomes part of understanding the reef.
Volunteers may spend time improving fish identification skills or learning about species commonly found around the project sites.
Suddenly, the fish swimming past you are not simply colourful background scenery. They are part of a much larger ecological story. That shift—from seeing individual animals to understanding an ecosystem—is one of the most valuable parts of conservation training.
The work does not necessarily finish when the dive ends.
After returning from the site, equipment needs to be cleaned and stored. Observations may need to be recorded. The team can discuss what happened during the dive, anything unusual that was noticed and what may need attention during future visits.
This process is important because conservation is not based simply on individual experiences. Projects need continuity. Information gathered today may help inform work carried out weeks or months later.
One misconception about marine conservation volunteering is that every day is spent underwater. It isn’t. And it shouldn’t be.
Effective marine conservation involves much more than diving. A volunteer experience may include workshops, data work, species identification, educational activities, cleanups, project maintenance or other conservation tasks.
Weather can also change plans. If conditions are unsuitable for the planned underwater activity, the project needs to adapt. That is part of working in the real world rather than participating in a staged conservation experience.
Marine debris is another issue affecting coastal and marine environments.
Plastic, fishing line and other waste can travel through rivers and coastal areas before eventually reaching the ocean.
Cleanups therefore form another practical part of marine conservation. They may not sound as exciting as working on a coral nursery, but removing debris and documenting what is found can help volunteers understand how closely connected activities on land are to what happens underwater.
Protecting reefs cannot happen only beneath the surface.
As divers, we have an opportunity to become ambassadors for the ocean by diving responsibly and supporting conservation efforts that protect these incredible ecosystems.
Perhaps the most important part of a coral restoration volunteer experience is understanding why the project exists in the first place.
Coral reefs face pressure from many directions. Climate change and rising ocean temperatures can contribute to coral bleaching. Pollution, sedimentation, coastal development, fishing pressure, marine debris and direct physical damage can create additional stress.
Coral restoration cannot solve all of those problems. That distinction matters. Restoration is one tool within a much larger conservation strategy.
Healthy reefs ultimately depend on protecting the environmental conditions that allow coral ecosystems to survive. That means restoration must work alongside education, research, responsible tourism, community involvement and wider marine protection.
One advantage of Marine Conservation Costa Rica’s relationship with Oceans Unlimited and Go Pro Costa Rica is the connection between conservation and the diving community.
Recreational divers can learn how to reduce their impact on reefs. Divemaster candidates can develop a deeper understanding of the environment in which they may eventually work. Instructors can pass conservation knowledge to new generations of divers. And conservation volunteers can develop the underwater skills required to participate effectively in marine projects.
Those connections matter. Dive professionals have the opportunity to influence thousands of people during their careers. Creating environmentally aware divers can therefore have an impact far beyond a single conservation project.
Many people assume they need a scientific background before volunteering with a marine conservation organization. That isn’t necessarily the case.
A genuine interest in the ocean, willingness to learn and readiness to participate are a much better starting point.
Different activities require different levels of diving experience and training, and volunteers should only participate in activities appropriate to their qualifications and abilities.
But conservation education can begin with anyone. You can learn to identify fish. You can understand how coral reefs function. You can learn why good buoyancy matters. You can participate in cleanups. And you can begin understanding how everyday decisions affect marine environments.
At the end of a conservation day, you may be tired. Your equipment needs rinsing. Your hair is probably a mess. And you may have spent considerably more time cleaning underwater structures than posing next to beautiful coral.
But that is exactly the point. Real conservation isn’t created for photographs. It is built through consistent work.
Monitoring. Maintenance. Education. Research. Community involvement. And people who care enough to keep showing up.
Volunteering with a coral restoration project gives you an opportunity to experience the ocean differently.
You are no longer simply visiting a reef. You are learning how it works, understanding the challenges it faces and participating in efforts to protect its future.
At Marine Conservation Costa Rica, our goal is not only to restore coral. It is to create a community of people who understand why these ecosystems matter and who take that knowledge with them long after they leave Costa Rica.
Because successful marine conservation isn’t built in a single day. It is built by what we choose to do every day.
Reading about coral restoration is one thing. Participating in it gives you an entirely different understanding of the ocean.
Join Marine Conservation Costa Rica and learn about coral reef ecosystems while gaining practical experience with an active marine conservation project in Manuel Antonio.
Whether you’re exploring a future career in marine conservation, adding practical experience to your studies or simply want to use your time in Costa Rica to make a meaningful contribution, we’d love to introduce you to the project.
Learn about the reef. Work alongside it. Help protect its future.
What is it really like to volunteer on a coral restoration project? Follow a typical conservation day in Costa Rica, from preparing for nursery dives and monitoring coral health to marine cleanups, education and learning how reef restoration works.
Coral reefs support nearly a quarter of all marine life, protect coastlines and sustain communities around the world. Learn why these remarkable ecosystems matter and how marine conservation and coral restoration projects in Costa Rica are helping secure their future.
At Marine Conservation Costa Rica, we are thrilled to share an incredible milestone—since January 2025, our team of dedicated staff,...
When people think about coral reefs, they often picture colourful fish, crystal-clear water and tropical holiday destinations. While reefs are certainly some of the most beautiful ecosystems on Earth, their true importance goes far beyond what we see while snorkelling or scuba diving.
Coral reefs are the foundation of healthy oceans. They support an extraordinary diversity of marine life, protect coastlines from erosion, provide food and livelihoods for millions of people and play an essential role in maintaining the health of our planet.
Yet despite their importance, coral reefs are disappearing at an alarming rate.
Understanding why coral reefs matter is the first step towards protecting them.
Coral reefs cover less than one percent of the ocean floor.
Despite their relatively small size, they support approximately 25% of all known marine species during some stage of their lives.
Fish, crabs, shrimp, octopus, sea turtles, eels and countless other marine animals depend on coral reefs for shelter, food and breeding grounds.
Without healthy reefs, entire marine ecosystems begin to decline.
Every reef is like an underwater city, filled with life, relationships and delicate ecological balance.
Many people don’t realise that coral reefs also serve as natural barriers between the ocean and the land.
Healthy reefs absorb the energy from waves before they reach the coastline.
This natural protection helps reduce:
Communities living near healthy reefs are often better protected during storms than those where reefs have deteriorated.
As climate change increases the intensity of storms around the world, this protective role is becoming even more important.
Millions of people around the world rely on coral reefs for food and income.
Many commercially important fish species spend part of their lives within reef ecosystems before moving into deeper waters.
Healthy reefs support sustainable fisheries by providing nursery habitats where young fish can grow safely.
When reefs decline, fish populations often decline as well.
Protecting reefs ultimately helps support coastal communities and food security for future generations.
Costa Rica is famous for biodiversity on land, but its marine biodiversity is equally remarkable.
The reefs along Costa Rica’s Pacific coastline provide habitat for an incredible variety of marine life.
Divers exploring these reefs may encounter:
Every species plays a role in maintaining the balance of the ecosystem.
Losing even a few key species can affect the health of the entire reef.
Although coral reefs are remarkably resilient, they are also extremely sensitive to environmental change.
Today, reefs face multiple pressures including:
These challenges rarely occur in isolation.
Instead, they often combine to place additional stress on reef ecosystems.
Without action, many reefs could struggle to recover naturally.
Healthy oceans also support healthy local economies.
Millions of people travel every year to experience coral reefs through scuba diving, snorkelling and marine wildlife tours.
In Costa Rica, sustainable marine tourism creates employment for:
When reefs thrive, communities benefit alongside marine life.
This creates a strong incentive for responsible tourism and conservation.
One of the greatest threats facing coral reefs is rising ocean temperatures.
Corals live in partnership with microscopic algae that provide much of their energy and vibrant colours.
When water temperatures remain unusually warm for extended periods, corals become stressed and expel these algae.
This process is known as coral bleaching.
Bleached corals are not immediately dead, but prolonged stress can leave them vulnerable to disease and mortality.
Reducing local stressors and supporting restoration projects can improve a reef’s ability to recover.
While protecting existing reefs remains the highest priority, restoration projects can play an important role in helping damaged reefs recover.
Coral restoration programmes often involve:
These initiatives do not replace natural conservation.
Instead, they help support ecosystems that are under increasing pressure.
Every healthy coral colony added back to the reef contributes to rebuilding habitat for marine life.
Marine conservation is not only about protecting wildlife.
It is also about protecting people.
Healthy oceans provide:
By protecting coral reefs, we are also investing in the wellbeing of future generations.
Conservation succeeds when local communities, scientists, businesses and visitors work together toward the same goal.
Scuba divers have a unique opportunity to become ambassadors for the ocean.
Every dive provides an opportunity to:
Even small actions can have meaningful long-term impacts.
Perhaps even more importantly, divers often become powerful advocates for marine conservation after experiencing healthy reefs firsthand.
You don’t need to be a scientist to support coral reef conservation.
Small actions can make a difference.
You can:
Collectively, these actions create positive change.
Coral reefs are among the most valuable ecosystems on our planet.
They support incredible biodiversity, protect our coastlines, strengthen local economies and inspire millions of people to connect with the ocean.
Their future depends on the choices we make today.
Whether you are a diver, traveller, student or simply someone who cares about the natural world, you can play a part in protecting these remarkable underwater ecosystems.
At Marine Conservation Costa Rica, we believe that meaningful conservation begins with education, grows through community and succeeds through action.
Join one of our marine conservation programmes, support our coral restoration projects or volunteer with us to help ensure that Costa Rica’s reefs continue to thrive for generations to come.
Because when we protect coral reefs, we protect far more than the ocean—we protect the future of our planet.
Dive with Me
What is it really like to volunteer on a coral restoration project? Follow a typical conservation day in Costa Rica, from preparing for nursery dives and monitoring coral health to marine cleanups, education and learning how reef restoration works.
Coral reefs support nearly a quarter of all marine life, protect coastlines and sustain communities around the world. Learn why these remarkable ecosystems matter and how marine conservation and coral restoration projects in Costa Rica are helping secure their future.
Discover the hidden wonders of turtles, nature's ancient mariners, and their incredible survival stories that span over 200 million...
At Marine Conservation Costa Rica, we are thrilled to share an incredible milestone—since January 2025, our team of dedicated staff, interns, and volunteers has successfully planted 1,000 coral colonies on local reefs. What makes this achievement even more special is that we reached our annual goal months ahead of schedule.
These new colonies, representing six different coral species, are now thriving in our nurseries and on restored reef sites. Each one plays a crucial role in strengthening marine biodiversity, providing habitat for countless fish and invertebrates, and ensuring that Costa Rica’s coral reefs continue to support the health of our oceans for generations to come.
Coral reefs are among the most vital ecosystems on Earth. They act as nurseries for marine life, natural barriers against coastal erosion, and providers of food and income for millions of people worldwide.
Planting 1,000 coral colonies may sound like a number, but in reality, it represents a living, breathing future for our oceans. Each coral fragment we grow and transplant has the potential to expand into a healthy reef structure, supporting schools of fish, protecting coastlines, and restoring balance to the underwater world of Manuel Antonio and Quepos.
This achievement would not have been possible without the tireless efforts of our interns and volunteers. Each coral fragment planted is a testament to your hard work, dedication, and passion for conservation.
Whether you joined us for a few weeks or several months, your contribution has left a permanent mark on Costa Rica’s reefs.
We extend our deepest gratitude to everyone who joined our programs this year. Your energy and enthusiasm fuel our mission and inspire us to keep pushing the boundaries of what is possible in coral restoration.
If you’re inspired by this achievement and would like to join us, there are several ways to get involved:
🌊 Internships: You can also gain college credit with one of our partners when you complete an internship with us: Find out more through Intern International.
🤿 Eco Divemaster Program: Take your scuba training to the next level while contributing directly to reef restoration with Oceans Unlimited and our partners at Gapforce
Your journey with us doesn’t just enhance your diving skills—it helps protect and rebuild our ocean ecosystems.
If you are not a scuba diver or aren’t able to come visit then you can still help us with our coral restoration by taking part in our adopt a coral program.
You can choose to adopt either a colony or a whole reef if you would like and help us continue or work or restoring the reefs of Costa Rica.
While coral restoration is at the heart of our work, Marine Conservation Costa Rica is committed to a holistic approach to ocean conservation. Our other projects include:
📚 Marine education programs with local schools and communities.
🐠 Reef monitoring and surveys in partnership with global organizations such as REEF.org.
🌐 3D reef imaging projects, creating digital models to track coral growth and resilience.
🏝️ Community outreach initiatives that build awareness about marine protection and sustainable ocean practices.
By combining research, education, and restoration, we aim to create lasting change for both marine life and local communities.
Reaching our 1,000-colony goal early is not the end—it’s just the beginning. With your continued support, we are excited to push further, expand our nurseries, and strengthen our reefs.
Together, we can ensure that Costa Rica remains a global leader in marine conservation and that our oceans remain vibrant, diverse, and resilient.
To everyone who helped us reach this milestone: thank you. And to those who want to join our mission—there has never been a better time to dive in.
Be part of reef restoration in Costa Rica. Find out more about our progams and projects here.
The health and restoration of coral reefs has been a large topic in the field of marine conservation. Through human activity and climate change, coral reefs have taken detrimental damage, posing a massive risk to the health of our oceans and the living beings that inhabit and benefit from it, including humans.
Why are coral reefs so important?
Why are coral reefs important? According to Pew Trusts, coral reefs support 25% of all marine species, and are biodiversity hotspots, allowing for species to seek shelter, reproduce, feed, and nurse their young. They make up less than 1% of the ocean floor, but, as previously stated, support 25% of all marine species (Razek, 3). On top of this, the corals themselves are living organisms and play a large role in their ecosystems, and damages done to these reefs harm them as well. According to NOAA, coral reefs benefit more species per unit than any other marine environment, housing around 4,000 species of fish, 800 species of hard corals, and hundreds of other aquatic species (NOAA, 1). This is not even including the millions of undiscovered species that may be living within these biodiversity epicenters. These reefs also bring about many benefits for humans as well. According to NOAA, they play an imperative role in keeping up both commercial and subsistence fisheries, as well as countless jobs in the recreation and tourism sector. These reefs are invaluable to the function of fisheries, which bring in large amounts of income and food. Many countries also depend on these reefs for tourism, as they bring about many visitors, recreational opportunities, and hotels, which in turn helps maintain their economy. They not only are imperative for both resources and income, but they also protect us from natural disasters. NOAA goes on to state that they buffer 97% of energy from waves, storms, and floods, making them invaluable in the protection of life, communities, as well as the prevention of erosion (NOAA, 3). Without these reefs, coastal communities would find themselves far more exposed to the devastating effects of these disasters. Reefs face many dangers such as pollution, disease and habitat destruction, all of which will be covered further later in this article. Essentially without these reefs, we would see massive losses in biodiversity and natural habitats, blows to natural food chains and ecosystems, as well as detrimental blows to fisheries, a key source of food and income, tourism, which is essential for the economy in many countries, as well as an increase in threats to coastal communities.
How are they threatened?
What threats do coral reefs face? How have they been damaged? NOAA provides further information on how coral reefs have become under danger from human activity. Pollution, overfishing, harmful fishing habits, the collection of corals, the mining of coral, as well as climate change, are all vectors of damage for these reefs. Land-based runoff, pollutant discharges, leaking fuels, paints, and chemicals, are all human-based sources that can harm the ocean’s reefs. Additionally, if there is an oil spill during a coral’s spawning process, the eggs and sperm will also be harmed. The collection of corals for sales purposes can also prove detrimental to these reefs. NOAA also states that many fishing practices can also prove detrimental, such as blast fishing and cyanide fishing. The practice of deep water trawling, which involves the dragging of large nets along the sea bottom. These nets can be left as debris in the reefs, and can result in the corals being tangled. The reefs are also impacted by weighted bags, startling and scaring life out of their habitats within these said reefs. Finally, the effects of climate change can result in coral bleaching, which can severely harm the corals. Greenhouse gasses that are emitted from human activity can lead to this effect, as an increase in their presence causes global warming, which in turns also warms the oceans, bleaching the corals.
The state of coral reefs in Costa Rica and Latin America
One may also ask: how are coral reefs faring in Costa Rica and Latin America? The Latin American region as a whole is a haven for biodiversity and habitats. According to the Costa Rica International Academy, Costa Rica is home to an impressive number of almost 7,000 different marine species (CRIA, 2). The LAC region, or Latin America and the Caribbean, host 10% of the world’s coral reefs (Climate Champions, 1). These reefs are home to countless species, as stated earlier, 25% of all marine species live in coral reefs around the globe. The coral reefs in Latin America are epicenters of life. Matter of fact, according to the NRDC, Latin America is one of the most biodiverse regions in the world. That being said, it is imperative that these centers of life are protected. EarthJustice.org states that 93% of the reefs in Costa Rica are in danger, and that tourism is a large factor (Cossio, 3). Unsustainable tourism is a whole issue in of itself, as large amounts of human intrusion can have detrimental effects on marine ecosystems. Sedimentation from human activity threatens the pacific coral reefs of Costa Rica. Looking at Latin America as a whole, 50% of all coral reefs in Latin America are at risk of degradation in the next five to ten years (Cossio, 7). Coral bleaching also threatens the reefs of this region. According to the Tico Times, rising ocean temperatures from climate change exacerbate the effects of El Nino events, which is a natural warm period in the waters of the Pacific. As ocean temperatures rise, El Nino only gets warmer, therefore leading to coral bleaching.
Government Action
There has been action from the world’s governments to protect our oceans. These actions have both pros and cons. According to Royal Museums Greenwich, Marine Protected Areas have been developed to counter the damage and overuse of our oceans. Just like within national parks, these areas are limited to human activity and industry. Marine Protected Areas require the limitation of drilling, fishing, and diving. They have been established with the central idea that aquatic animals, plants, and habitats are protected from detrimental human activities. These areas are protected by laws, regulations, voluntary agreements, and codes of conduct . However, these areas do have their pitfalls. According to Mind the Gap: Addressing the Shortcomings of Marine Protected Areas Through Large Scale Marine Spatial Planning, a journal within ScienceDirect, there are multiple fields where marine protected areas fall short. They may be too small to be ecologically sufficient, inappropriately managed or planned, fail due to degradation of unprotected surrounding ecosystems, and may do more harm than good due to displacement and unintended consequences of management.
Summary
The takeaway? Coral reefs are essential for not only a countless number of marine species and the overall health of our world’s ocean ecosystems, but they also bring a fruitful amount of benefits for humans. These priceless areas are at danger from the harmful consequences of human activity, and it is imperative that they are protected and taken care of.
Written by Michael Basharis
References:
https://oceanservice.noaa.gov/education/tutorial_corals/coral07_importance.html
https://www.nrdc.org/bio/jessica-carey-webb/latin-americas-biodiversity-critical-global-goals
https://earthjustice.org/article/coral-reefs-and-the-unintended-impact-of-tourism
https://ticotimes.net/2023/08/20/costa-ricas-coral-reefs-in-peril-as-temperatures-rise
https://www.rmg.co.uk/stories/our-ocean-our-planet/what-is-30×30-marine-protected-areas-ocean-2030
Coral reefs, often considered the vibrant metropolises of the ocean, are teeming with life and captivating beauty. Beyond their picturesque appearance lies a world of fascinating facts that make these underwater ecosystems truly exceptional. In this article, we will delve into five funtastic facts about coral reefs, shedding light on their crucial roles, incredible biodiversity, and the captivating dynamics of these marine wonderlands.
Contrary to popular belief, coral reefs are not static structures; they are dynamic, living organisms. Unlike plants, these underwater wonders don’t whip up their own meals through photosynthesis. Instead, they are composed of colonies of tiny organisms known as polyps. These polyps, akin to microscopic powerhouses, collaborate to build the intricate structures that we recognize as coral reefs.
Imagine a bustling neighborhood, where a quarter of all marine species convene for the ultimate underwater block party. Coral reefs serve as the epicenter of this marine fiesta, providing a habitat for an astonishing array of fish, invertebrates, and other marine creatures. Every nook and cranny of the reef becomes a hotspot for oceanic diversity, creating an underwater realm that rivals any terrestrial ecosystem in its complexity and interdependence.
Beyond their role as marine meeting grounds, coral reefs play a crucial role as nature’s underwater janitors. These aquatic custodians filter and purify their watery homes with an efficiency that surpasses any oceanic mop and bucket. Through a process known as nutrient cycling, coral reefs remove excess nutrients from the water, preventing algal overgrowth and maintaining a delicate balance in the ecosystem.
Picture the reefs as diligent cleaners, tirelessly working to ensure the health and vitality of their surroundings. As they filter the water, coral reefs contribute to maintaining the pristine conditions that support the incredible biodiversity thriving within their structures. Let’s take a moment to applaud these unsung heroes of the ocean – the coral reefs, the true custodians of cleanliness beneath the waves.
Coral reefs, much like sunbathers on a tropical beach, require sunlight to grow and thrive. These marine ecosystems depend on sunlight for a process called photosynthesis, which takes place within the symbiotic relationship between the coral polyps and microscopic algae called zooxanthellae. The coral provides a safe haven for the algae, and in return, the algae supply the coral with essential nutrients.
However, just like humans, coral reefs can suffer from too much heat. Excessive heat, often caused by rising sea temperatures due to climate change, can lead to a phenomenon known as coral bleaching. This is analogous to the ocean’s version of a sunburn, where the coral expels the algae, resulting in a loss of color and vitality. To ensure the well-being of these underwater ecosystems, it is crucial to keep coral reefs within the optimal temperature zone, allowing them to continue groovin’ and thriving in their watery abode.
Coral reefs hold the prestigious title of VIPs (Very Important Protectors) along coastlines, as they play a vital role in reducing coastal wave energy. Studies have shown that coral reefs can slash coastal wave energy by an impressive 97%. Acting as nature’s breakwaters, these underwater structures provide a formidable defense against the erosive forces of waves and storms.
The intricate architecture of coral reefs acts as a natural barrier, dissipating the energy of incoming waves and protecting coastal areas from erosion and damage. In addition to their aesthetic appeal, coral reefs serve as the ultimate shore defenders, making waves and keeping it cool along the coastlines they inhabit.
Despite their resilience, coral reefs face numerous threats that jeopardize their existence. Human activities such as overfishing, pollution, and climate change pose significant risks to these delicate ecosystems. Rising sea temperatures, in particular, contribute to coral bleaching and the deterioration of reef health.
Conservation efforts are critical to preserving the biodiversity and ecological functions of coral reefs. Initiatives like marine protected areas, sustainable fishing practices, and global efforts to reduce greenhouse gas emissions play pivotal roles in safeguarding these underwater marvels. As stewards of the planet, it is our responsibility to take proactive measures to protect and conserve coral reefs for future generations.
With all of the projects we work hard on throughout the year, we are always looking for help. You can get involved with one of our internship or volunteer programs.
Vera Mkhsian is an 18 year old Intern from Los Angeles, California. She is currently a Anthropology student studying to be an Archeologist with a focus in Marine development. A future archaeologist set on diving deep into the ocean’s secrets, Vera dreams of merging the worlds of archaeology and marine biology. Vera actively looks for opportunities to work with scientists to untangle the intertwined tales of human history and ocean life, as she is eager to bridge the gap between archaeology and marine biology.
You can get involved with one of our internship or volunteer programs.
Imagine this, you are on vacation and pay good money to scuba dive in the wonders of the sea. You are thrilled to see an abundance of the world below us, filled with happy ecosystems, baby sea turtles, huge sharks and incredible colors. To your surprise, the ocean lacks its beauty and majestic glow. The coral isn’t its vibrant, healthy self but instead decaying and dull. There are far less fish and aquatic plants than expected, and instead you find yourself surrounded in a never-ending vast blue, longing for the return of a lively reef.
Unpleased and disappointed, you question what happened and how you can help, thankfully the Marine Conservation Costa Rica (MCCR) is actively striving to educate and take action.
What is Coral Bleaching?
Due to global warming increasing the temperature of the sea, coral eject zooxanthellae, (the symbiotic algae that lives in most hard corals and provides the coral with most of its energy to build reefs). With the zooxanthellae gone, the coral’s beautiful colors fade and turn white. This process is called coral bleaching.
The good news is the loss of color does not mean the coral has died, it is still alive and can survive a bleaching but undergoes stress and is much more vulnerable. Coral can recover from bleaching if the ocean’s previous conditions return to normal, and zooxanthellae in reabsorbed. By adapting to a lifestyle focused on reducing global warming, we will help regrow those reefs and see them thrive again.
How Global Warming Hurts Coral
Global warming has become a widespread issue across the world, and unfortunately the ocean has been the number one victim. The sea life thrives in a specific climate and temperature range, with little to no wiggle room. When the ocean begins to warm up, even just a couple of degrees, living organisms struggle to survive. Thus, leaving the coral lifeless with only the calcium carbonate skeleton remaining. Now what was once a lush and thriving community of organisms is a bare and lifeless area of sand and coral skeletons.
Why does Coral Matter?
Coral may look like a simple plant, however, it is actually a sessile animal that relies on the oceans floor and algae to thrive. A healthy reef provides an entire community for its residents to live, eat and be protected. It is home to millions of varied species like fish, algae, crab, clams, seahorses and turtles. Without it, essentials like food, shelter, and biodiversity would become scarce resulting in food-web changes and relocating or dying of needed species.
How are we Affected?
The health of coral is significant to the health of our earth and humans. Since coral reefs are the center for ecosystems in the ocean and supply the food chains, we are losing food too. For us, they are vital for feeding many coastal populations of people since they provide us with most of the seafood we eat.
Furthermore, coral reefs play a significant role in protecting our precious coastlines and beaches. During the time of storms or natural disasters like hurricanes, the reefs act as a barrier to protect land from flooding and erosion.
Simultaneously, coral reefs do an excellent job of storing carbon dioxide, which aids in the regulation of carbon dioxide in our atmosphere. As you can see, coral reefs hold many responsibilities to organisms of all levels.
Just as we rely on coral reefs, they are dependent on us! It is now our turn to take a closer look at how we as humans are treating our wonderful corals and helping rebuild their sustainability in the natural world.