The Pearl Protectors

The Ocean’s Evolving Symphony

The Pearl Protectors — Sun, 20 Sep 2026 19:34:00 +0000

By: Sandeepa Pushpakumara

Think of listening to the same song reverberate through an ocean, only to find that it has turned into a completely different melody a few years later. That is, in a sense, what occurs with humpback whales. The eerie songs they produce are not static; they evolve in response to cultural learning, environmental changes, and population shifts. These changes are not merely intriguing; they aid scientists in understanding whale behaviour, migration patterns, and the state of marine ecosystems.

Male humpback whales produce long and complicated sequences that consist of repeated units and themes, especially during the breeding season. Remarkably, all the males in a population share a similar song. The songs gradually change over time due to social learning among individuals. The researchers refer to this process as cultural evolution, as whales socially learn and modify songs, causing new variations to spread through the population over time.

In some cases, the changes are dramatic. Scientists have documented song revolutions in which a completely new song spreads through whale populations and supplants the previous one within just a few years. A well-known example occurred when a song from Western Australia rapidly spread to eastern Australia, replacing the song previously sung there, before spreading across the South Pacific. Comparable patterns have also been seen between French Polynesia and Ecuador, demonstrating that whales are able to transmit cultural traditions over thousands of kilometres.

The ocean itself has an influence on whale songs. Natural sounds like wind and waves, and the growing amount of anthropogenic noise from ships, have an effect on the way whales communicate. Studies have found that humpback whales tend to sing louder when the level of background noise rises, a phenomenon called the Lombard effect. Yet they seem to respond in different ways to natural sounds and to noises produced by humans, occasionally failing to compensate for the noise from engines. This could reduce the distance over which their songs can travel.

The environment and the way the population recovers also have an effect on the way whales call. Changes in vocalisations have also been observed in other whale species. In recent decades, for example, the calls of blue whales have gradually become lower in frequency. Since this change is not attributed to shipping noise, researchers have suggested that the decline in call frequency may be a consequence of recovering whale populations. However, the exact cause remains uncertain.

Climate change is introducing an extra element of complexity since marine heatwaves and shifting ocean conditions affect the availability of krill and fish, which in turn influences whale migration and behaviour. A study carried out in California found that humpback whale singing activity varied with prey availability, with songs becoming less frequent in years when food was scarce.

Whale songs are not simply beautiful music underwater; they reveal how whales learn from each other and respond to changing environmental conditions and human activity. By monitoring these changing melodies, scientists gain important insights into population connectivity, ecosystem health, and the conservation of some of the ocean’s most remarkable animals.

Why It Matters

There is much more to understanding why whale songs change than simply satisfying scientific curiosity; Understanding why whale songs change is about more than satisfying scientific curiosity; it can also play an important role in marine conservation. has an important role in marine conservation. Whale songs offer a non-invasive method to monitor changes in marine environments. It has been shown that alterations in singing behaviour often correspond to changes in the availability of prey, in ocean conditions, and in human activity.

Scientists now use passive acoustic monitoring systems, including underwater microphones and autonomous gliders, to record whale vocalisations across many parts of the world’s oceans. The recordings are useful for estimating the sizes of whale populations, for monitoring their migration routes, and for detecting links between different whale populations. When whales in separate areas sing similar songs, this can provide evidence of cultural transmission and connectivity between populations. Conversely, changes in the complexity or frequency of the songs may reflect shifts in environmental conditions or behaviour, such as greater stress caused by noise pollution, climate change, or habitat disruption.

Whale songs consist of more than just beautiful underwater melodies; they provide a valuable source of scientific data. When researchers listen to these changing symphonies, they are able to gain a better understanding of how whales react to a changing ocean and can thus formulate more effective conservation measures. In the end, protecting whales and the acoustic environments they depend on will help support marine biodiversity for future generations.

Feature Image Credits: connectivitycheck.gstatic.com/generate_204

Four Years After the MV X-Press Pearl Disaster: A Fight for Justice That’s Not Over

The Pearl Protectors — Mon, 14 Sep 2026 04:52:54 +0000

By: Rukmi Peiris

It has been over 04 years, since “The Worst Marine Chemical Catastrophe in the recorded history of the Indian Ocean” as experts called it, had happened in May 2021. The MV X-Press Pearl ship, that was carrying 25 tonnes of nitric acid, approximately 70 billion plastic nurdles, and other hazardous chemicals, caught on fire leaving a trail of destruction that continues to haunt Sri Lanka’s west coast till now.

Even today, the fight for justice is not over. Even though the Supreme Court of Sri Lanka delivered a judgement in July 2025 with a compensation of $1 billion, the money is still largely unpaid and the legal institutional responses are deeply unresolved.

The Disaster That Changed Everything

We must go back to the beginning first, to understand the current situation. On 20^th May 2021, while waiting to enter the Colombo harbour, the Singapore-flagged container vessel MV X-Press Pearl ship caught on fire. This fire was believed to have started in a container carrying nitric acid and the crew had the knowledge about a leak in this certain container since days earlier, but at previous ports in Hamad and Hazira, the ship was refused entry.

For 13 days, MV X-Press Pearl burned and destroyed much of the cargo, eventually releasing an enormous number of pollutants such as plastic nurdles, and tiny pellets used as raw material in the packaging industry, which washed up on Sri Lanka’s beaches in thick layers covering the sand.

On the other hand, the impact on marine life was devastating. Dead turtles, whales, and dolphins washed ashore, while the fisheries sector faced income loss, reduced fish stocks, damaged gear, and widespread public mistrust in seafood safety and the tourism industry was burdened with beach contamination, which drove visitors away.

The Supreme Court’s Landmark Judgement

The fight for the judgement was taken to the Supreme Court by the fishing community. In July 2025, a judgement ordering the shipping companies and their agents to pay $1 billion compensation was delivered by a five-judge bench. According to the court’s 361-page judgement, an attempt to gain entry to the Colombo port with intentionally suppressed and withheld truthful, timely, comprehensive, and accurate information regarding the situation, from the Harbour Master of the Colombo Port was found.

Also, the court ruled that the shipping companies had violated International Law by failing to inform Sri Lanka about the extent of the problem with the cargo vessel. The court also found that the Attorney General’s Department had acted irrationally, arbitrarily and unilaterally by failing to take action under Environmental Law.

The judgement set a payment scheduled to be deposited in court-administered funds for compensation to affected fishing communities and environmental restoration as $250 million due by September 2025, $500 million due six months later, and $250 million due within a year of the ruling.

Where is the Money?

In January 2026, the Supreme Court concluded the hearing of the Fundamental Rights petitions, effectively terminating direct judicial supervision and the Attorney General confirmed that the domestic case has formally closed. With this, the court shifted the responsibility to the Executive branch for implementation and recovery. However, the Attorney General’s Department has emphasized diplomatic engagement and negotiated settlement, in relation to ongoing proceedings in foreign jurisdictions. This strategy has been controversial. Environmental activists argue that domestic enforcement should take priority and call for actions against non-compliant parties.

Also, as of February 2026, the initial compensation payable under the judgement has not been credited to the treasury and the compensation process has entered a period of uncertainty, institutional delays, competing legal strategies and unresolved enforcement mechanisms.

The Local Agent’s Limited Payment

Up until now, there has been only one payment of Rs. 300 million (approximately USD 1 million) received from the local shipping agent, Sea Consortium Lanka Ltd. No payment has been received from any other parties. Fourteen directors from the same company have been under a travel ban and their assets are being investigated through the Criminal Investigation Department. However, the main shipping companies and their insurers have yet to pay the compensation that was ordered by the Sri Lankan Supreme Court.

“The compensation claim in question was pursued by private parties. It is not within the purview of MEPA”, explained MEPA Chairman Samantha Gunasekara. The Marine Environment Protection Authority (MEPA) played a vital role in the initial response to the disaster, but now they have a more limited position in the compensation process, while their own cases against the responsible parties have not yet concluded.

The Compensation Commission That Has Not Started

The Supreme Court directed the establishment of a Compensation Commission chaired by retired Supreme Court Justice Gamini Amarasekara, to oversee the distribution of compensation. According to the most recent reports, the commission has yet to commence operations. “We submitted the Terms of Reference to the SC and are still waiting for a response. We cannot authorize the release of compensation without first determining the quantum. Even then, the power to enforce such orders resides with the court. The commission is not a court of law empowered to issue writs”, Justice Amarasekara said. He confirmed that the Terms of Reference of the commission defining its authority and procedures, have not yet been approved.

Compensation for the Dried Fish Industry

Under the 4^th phase of the MV X-Press Pearl damage compensation scheme, in June 2026, Fisheries Minister Douglas Devananda announced that the measures would be taken to provide compensation to fishermen who work in the dried fish industry. Fishermen in the Negombo area had already approached the Minister with their concerns. They explained how they had to stop drying fish on the coastline for a while to avoid contamination from the disaster, which heavily affected their livelihood. The Minister assured them that necessary steps would be taken.

The Ongoing Environmental Impact

The impact of this disaster is not only financial, but also continues to harm the environment. The plastic nurdles, that were released by the MV X-Press Pearl still remain in the ocean, causing ecological stress. Recent studies show that the fisheries sector has suffered from major disruptions such as reduction of fish stocks and damaged gear. With continued presence of nurdles in the marine environment, it is leading to ecological stress, potentially affecting biodiversity, while disrupting fish breeding activities.

According to affected communities, there are unequal and delayed compensation, lack of disaster preparedness, and communication gaps. This disaster revealed that small-scale coastal economies are vulnerable to maritime pollution.

The Case for Accountability

Most of the compensation ordered by the Supreme Court is still unpaid even after 04 years have passed. The Attorney General favours international negotiation, while the environmental groups warn that extended diplomacy can lead to weakening domestic court orders. The government and the court have been aware of these matters and even have pushed for accountability. However, the implementation of the international compensation process is complex and many are watching what will be Sri Lanka’s next step.

The MV X-Press Pearl incident compensation process is now attention-grabbing across domestic courts, pending cases in London and Singapore, and unresolved justifiable mechanisms in Sri Lanka, while this complexity makes implementation difficult and even delays recovery.

A Call for Action

The MV X-Press Pearl disaster, both before and ongoing situations show the devastating consequences of environmental negligence and the importance of holding polluters accountable, while it also reflects the limitations in the legal system. Without an effort between the judiciary, the executive and international partners, justice can remain elusive.

The marine life that perished, the ocean water and beaches that were polluted and the fishing communities that lost their livelihood deserve justice, just more than promises. The fight for compensation of the MV X-Press Pearl disaster is far from over. And while this fight goes on, we should work on protecting our ocean as well. We never know. Maybe the next disaster is just around the corner.
Feature Image : Loaded with nearly 1,500 containers, the X-Press Pearl caught fire off the coast of Colombo, Sri Lanka.

Where the tide meets our waste: The hidden journey of plastic to Panadura Beach

The Pearl Protectors — Sun, 06 Sep 2026 22:09:00 +0000

By: W.B.A. Withana

On a sunny morning at Panadura Beach, the shoreline appears calm. Waves gently wash against the sand while fishermen prepare their boats and families stroll along the coast. Yet hidden among piles of dried coconut leaves lies another story, plastic bottles, food wrappers, and polythene bags that arrived long before the visitors did.

Most people assume beach litter is left behind by those who visit the coast. My field observations suggest otherwise. Much of this waste begins its journey several kilometers inland before eventually reaching the sea through the Bolgoda River.

Imagine someone throwing a plastic bottle beside a road in Panadura or nearby communities. During the next rainfall, the bottle is swept into roadside drains. Those drains feed into canals that eventually connect to the Bolgoda River. From there, the river becomes a conveyor belt carrying waste toward its mouth, where freshwater meets the Indian Ocean. Ocean currents and tidal movements then return much of this debris to Panadura Beach, where it becomes part of the growing marine litter problem.

During several field visits to the Bolgoda River and Panadura coastline, I observed plastic waste trapped along riverbanks and floating near the river’s surface. At the beach, discarded bottles, food wrappers, food containers and polythene bags had accumulated among natural debris such as dried coconut leaves and other vegetation. These observations suggest that much of the litter arriving on the beach originates beyond the coastline itself.

Why This Matters

The plastic waste, carried through rivers and canals and eventually deposited along Panadura Beach. Marine litter can affect the entire coastal ecosystem, from small aquatic organisms to significant fish, birds, mangroves and the people whose livelihoods depend on the sea.

Fish can mistake small pieces of plastic for food or become exposed to plastic debris in their habitat. As plastic fragments into smaller particles, it can become part of the marine food web. Plastic pollution can therefore affect fish populations and potentially create concerns for seafood safety.

Crustaceans such as crabs live and feed close to the sediment, where plastic fragments and other litter can accumulate. They may become exposed to plastic while searching for food or moving through contaminated habitats. This is particularly important in coastal areas where crabs contribute to both biodiversity and local livelihoods.

Plastic bags and other floating debris can be mistaken for food by sea turtles. Larger pieces of litter can also create physical hazards for marine animals. Since coastal and marine habitats are important for turtles, increasing plastic pollution can place additional pressure on already vulnerable populations.

Coastal birds may consume small plastic fragments while feeding or become affected by litter accumulated along the shoreline. Plastic can also reduce the quality of feeding and resting areas. A beach covered with waste is therefore not only unattractive to people but also less suitable for wildlife.

Mangrove ecosystems are natural barriers between land and sea and provide important nursery habitats for fish, crabs and other organisms. Plastic waste can become trapped among mangrove roots and accumulate over time. This can interfere with the ecological functions of these valuable coastal environments and make them increasingly polluted.

A clean beach attracts visitors, while a shoreline covered with plastic bottles, food wrappers and polythene create a very different impression. Marine litter can reduce the visual appeal of Panadura Beach, discourage recreational activities and potentially affect the area’s attractiveness as a coastal destination. For a community that benefits from visitors, beach cleanliness is therefore also an economic issue.

Plastic pollution can affect the marine ecosystems on which fisheries depend. Fish and other aquatic organisms may be exposed to plastic debris, while litter can also interfere with fishing activities and damage or obstruct fishing equipment. If the health of coastal ecosystems declines, communities that depend on fishing may ultimately face economic consequences.

The problem does not end when a plastic bottle or food wrapper disappears from sight. Plastic generally does not simply vanish in the marine environment. Instead, larger pieces can gradually fragment into much smaller particles known as microplastics.

These tiny particles can be consumed by marine organisms and move through food webs. This makes the issue much more complex than the visible litter we see on the beach. What begins as a discarded bottle beside a road can potentially travel through drains, canals and the Bolgoda River before reaching the ocean and eventually becoming part of a much larger environmental problem.

The Solution Begins Upstream

Cleaning Panadura beach is important, but beach clean-ups alone cannot solve the problem. If plastic continues to enter the Bolgoda River from roads, drains and communities upstream, new waste will continue to reach the coast. If the river is the pathway, then our daily choices determine what ultimately reaches the tide.

Protecting Panadura Beach therefore requires action beyond the shoreline: keeping drains free of litter, reducing unnecessary single-use plastics, disposing waste responsibly, protecting the Bolgoda River and involving local communities in long-term waste-management efforts. The future of Panadura Beach may ultimately depend not only on what we remove from the sand, but on what we prevent from entering the river in the first place.

Effects of El Niño on Marine Food Chains

The Pearl Protectors — Mon, 31 Aug 2026 04:22:50 +0000

By : Sajini Perera

El Niño is a phase of the El Niño–Southern Oscillation (ENSO), one of the most significant natural climate phenomena affecting the world’s oceans. El Niño–Southern Oscillation involves a cycle of changes in ocean temperatures and atmospheric pressure in the tropical Pacific Ocean. During El Niño, unusually warm surface water develops in the central and eastern Pacific, altering normal ocean circulation patterns. Marine food chains are mainly based on the balance between the physical and biological interactions in the ocean. In a marine food chain, the primary producers are the phytoplankton, which do photosynthesis, and these organisms provide food for zooplankton, small fish, large predators, marine mammals, and seabirds. As all organisms are connected through the food web, when there’s a small change at the lowest level, it can have an impact on the whole system.

Under normal conditions, the upwelling process happens, which means that strong trade winds push warm surface water from the eastern Pacific toward the western Pacific. Through this process, cold, nutrient-rich water from deeper ocean layers moves to the surface layers, which supports the growth of phytoplankton. But during El Niño, as trade winds weaken, warm surface water moves eastward, and upwelling becomes weakened. As a result, lower nutrients in the surface layer cause less growth for phytoplankton, and ocean productivity declines. So, the amount of energy entering the food chain is reduced. When El Niño occurs, it can also cause a decrease in the diversity of phytoplankton species; species that require more nutrients they get decrease while the species require less nutrients grow faster during El Niño. Zooplankton are directly reliant on phytoplankton, as when phytoplankton populations decrease during El Niño, zooplankton populations also decrease due to the reduced availability of food. Small fish such as anchovies, sardines, and herring get reduced as they directly depend on phytoplankton. Also, these fish migrate into cooler waters, and their reproduction rates decline. Fish eggs and larvae are affected due to reduced food availability. Large predatory fish such as tuna, sharks, and swordfish populations get reduced as their prey becomes less abundant or migrates to other regions. So, predator fish have to travel long distances to find food, using more energy, and as a result, their reproduction declines. Marine mammals, such as whales, dolphins, sea lions, and seals, are also impacted by the reduced availability of food. Sea birds are dependent on fish populations, and they can be considered as highly sensitive indicators for the changes of the marine food chain.

El Niño can disrupt predator-prey relationships, while predators arrive in areas where prey have already disappeared, and fish move to new regions and encounter a familiar predator. Also, this causes an increase in competition between species for limited food resources. During El Niño conditions, it reduces the amount of energy available at higher levels when large predators receive much less energy because the food chain becomes weaker from its primary levels. El Niño causes warm-water species to replace cold-water species, changes in feeding in species, new competition between species, and temporary changes in marine community structure.

El Niño leads to high water temperature that leading to coral bleaching and coral mortality. Dead corals lead to deterioration of reef ecosystems through the removal of habitat, breeding grounds, and food for reef-associated fish and other organisms. Fewer prey organisms lead to fewer food sources for predator species in food chains.

In Sri Lanka, seawater temperature also affects where fish live and how they migrate. When the water gets warmer, it changes the environment, makes it less productive, and results in fewer fish being caught. El Niño can disrupt the food chains in Sri Lanka’s seas by changing the temperature of the ocean’s surface, how the water moves, and how many nutrients are available. These changes affect phytoplankton and zooplankton amounts, which then affect fish that swim in the open sea and bigger fish, such as tuna. When fish move differently and coral reefs bleach, it can finally change the marine biodiversity and fisheries productivity.

After El Niño ends, marine food chains can recover when normal ocean conditions return. However, repeated or intense El Niño events can make recovery more difficult by repeatedly disturbing the same food chains. If important species decline for long periods, the structure of the ecosystem may change.

El Niño affects marine food chains by disrupting the supply of nutrients that support primary producers. As marine food chains are interconnected, a change at one level can spread throughout the entire ecosystem. El Niño demonstrates how physical changes in the ocean environment can influence the movement of energy through marine webs and alter the abundance of ocean life, directly impacting biodiversity.

Feature Image : Beachgoers pass a dead common murre on a beach near Scripps Pier during a survey for dying seabirds Wednesday, May 6, 2026, in San Diego.

இலங்கையின் ஆழ்கடல் மற்றும் கடலோரப் பகுதிகள் எதிர்கொள்ளும் மறைமுக இரசாயன அச்சுறுத்தல்கள்: ஒரு விழிப்புணர்வுப் பார்வை

The Pearl Protectors — Sun, 23 Aug 2026 20:10:00 +0000

எழுத்தாக்கம் : அப்துல் பாஸித் பஷீர்

சந்தையில் வழக்கமாக வாங்கும் மீன் கிடைக்கவில்லை என்றால், அல்லது அதன் விலை உயர்ந்திருந்தால், அதன் காரணம் என்ன என்று எப்போதாவது யோசித்ததுண்டா? சமூக-பொருளாதார காரணங்களுக்கு அப்பால் அதற்கான மிக முக்கிய காரணி, நம் சமுத்திரங்களின் ஆரோக்கியத்தில்தான் மறைந்துள்ளது.

இலங்கையின் கடல் என்பது வெறும் இயற்கை வளம் மட்டுமல்ல, அது எமது நாட்டின் உயிர்நாடியாகும். சுமார் 1,620 கி.மீ நீளமுள்ள கடற்கரையைக் கொண்ட இந்தத் தீவு, 1,800-க்கும் மேற்பட்ட மீன் இனங்கள் (Fish Species) மற்றும் 380-க்கும் அதிகமான பவளப்பாறை (Coral Reefs) இனங்கள் வாழும் வளமான கடல்சார் பல்லுயிர் மண்டலமாக (Marine Biodiversity Hotspot) விளங்குகிறது. தென்மேற்குப் பவளப்பாறைகள், கல்பிட்டி மீன்வளம், மற்றும் கரையோர மீனவ சமூகங்கள் இதன் பெறுமதிக்குச் சான்றாக உள்ளன. அதேவேளை, சுமார் 30% மக்கள் கடலோரப் பகுதிகளில் வாழ்கின்றனர். 60% நகரங்கள் கடற்கரையை ஒட்டியே அமைந்துள்ளன. கண்டல் காடுகள், கடலோர ஈரநிலங்கள், கடல் புற்றரைகள் போன்ற 21 கடல்சார் வாழிடங்களில் (Marine Habitats) 10 ஏற்கனவே அழிவின் அச்சுறுத்தலை எதிர்கொள்கின்றன. மேலும் சமுத்திர மாசுபாட்டில் சுமார் 80% மனித நடவடிக்கைகளால் ஏற்படுகிறது என்பதும், இந்த அரிய கடல்சார் செல்வத்தைப் பாதுகாப்பது சுற்றுச்சூழல் மட்டுமல்ல தேசிய வாழ்வாதாரத்தின் எதிர்காலத்தையும் பாதுகாப்பதாகும் என்பதை வலியுறுத்துகிறது.

இலங்கையின் கடல்சார் எதிர்காலம், நமது ஆழ்கடலின் பரப்பளவால் அல்ல, அது கரையோரம் வரை பரவி இருக்கும் இரசாயனச் சமநிலை எவ்வளவு திறம்படப் பாதுகாக்கப்படுகிறது என்பதில் தான் தங்கியுள்ளது. ஆனால், அந்த அழகிய நீல நிறத்திற்கு கீழால் ஒரு மறைமுக அச்சுறுத்தல் உருவெடுத்து வருகிறது. அதுதான் ‘சமுத்திர இரசாயன மாசுபாடு’ (Marine Chemical Hazards).

பெரும்பாலும் நாம் கடலோரப் பகுதிகளில் ஏற்படும் பாதிப்புகளை மட்டுமே கவனத்தில் கொள்கிறோம். ஆனால், இன்று நாம் சிந்திக்கவேண்டிய மிக முக்கியமான கேள்வி, இலங்கையின் ஆழ்கடல் மற்றும் கடலோரப் பகுதிகள் ஆகிய இரண்டிற்கும் பொதுவான ஒரு இரசாயன அச்சுறுத்தல்-தளம் இருக்க முடியுமா? என்பது குறித்த விழிப்புணர்வு நமக்கு அவசியமாகிறது. ஆனால் இலங்கையில் ஆழ்கடல் ரசாயன கண்காணிப்பிற்கான தனித்த தேசிய தரவு இன்னும் குறைவாகவே உள்ளது. இந்த இரண்டு வலயங்களும் எவ்வாறு ஒரே அச்சுறுத்தலின் கீழ் வருகின்றன என்பதை நாம் ஆராய வேண்டியுள்ளது.

பொதுவான அடிப்படை :

கடலோரச் சூழலியல் (Coastal Ecology) மற்றும் ஆழ்கடல் சூழலியல் (Deep-sea Ecology) ஆகிய இரண்டும் வெவ்வேறு பண்புகளைக் கொண்டிருந்தாலும், இரசாயன அச்சுறுத்தல்களைப் பொறுத்தவரை அவை ஒன்றோடொன்று பின்னிப் பிணைந்தவை. கடலோரப் பகுதியில் ஏற்படும் இரசாயனக் கசிவுகள் அல்லது மாசடைதல்கள் நீரோட்டங்கள் வழியாக ஆழ்கடலுக்குக் கடத்தப்பட வாய்ப்புள்ளது. அதேவேளை, ஆழ்கடலில் நிகழும் மாற்றங்கள் இறுதியில் கடற்கரையோரப் பகுதிகளின் சமநிலையைப் பாதிக்கின்றன.

இலங்கையின் வளங்கள் :

இலங்கையிடம் சில வலுவான கட்டமைப்புகள் உள்ளன. உயர்கல்வி நிறுவனங்களில் கடல்சார் சூழலியல் (Marine Ecology) , இரசாயனவியல் (Chemistry) உள்ளிட்ட துறைகளில் திறமையான ஆய்வாளர்கள் உருவாகி வருகின்றனர். தேசிய நீரியல் வள ஆராய்ச்சி மற்றும் மேம்பாட்டு முகமை (NARA), கடல்சார் சுற்றுச்சூழல் பாதுகாப்பு அதிகாரசபை (MEPA), கடலோர பாதுகாப்பு மற்றும் கடலோர வள முகாமைத்துவத் திணைக்களம் (CCD), மற்றும் மீன்வள அமைச்சு போன்ற நிறுவனங்கள், பல தசாப்தங்களாக இலங்கையின் கடல்சார் வள மேலாண்மை, கண்காணிப்பு மற்றும் பாதுகாப்பு நடவடிக்கைகளில் இலங்கையின் கல்விசார் பின்புலம், தொழில்முறை அனுபவம் மற்றும் ஈடுபாட்டை வெளிப்படுத்துகின்றன.

தற்போதைய இடைவெளிகள் மற்றும் சவால்கள் :

இந்த வளங்கள் அனைத்தும் ஒரு சிறந்த அடித்தளமாக இருந்தாலும், அவற்றை நாம் எவ்வாறு ஒருங்கிணைக்கப் போகிறோம் என்பதிலேயே நமது வெற்றி தங்கியுள்ளது.

நிபுணத்துவ (Expertise) அடிப்படையில் ஆழ்கடல் இரசாயன மாற்றங்கள் மற்றும் சூழல்நச்சியல் (Ecotoxicology) குறித்த பிரத்யேகமான நிபுணத்துவம் இலங்கையில் இன்னும் போதுமான அளவில் வளர்ச்சி பெறவில்லை. மேலும் தொழில்நுட்பத் திறன் (Technical Capability) ரீதியாக ஆழ்கடலில் உள்ள இரசாயன அபாயங்களைக் கண்டறிந்து கண்காணிப்பதற்கான நவீன தொழில்நுட்பக் கருவிகள் மற்றும் அதிநவீன ஆய்வக வசதிகளில் இலங்கை இன்னும் பின்தங்கியே உள்ளது.

அத்தோடு சமுத்திர பாதுகாப்பிற்கான கொள்கை மற்றும் ஆளுகைச் சட்டகம் (Policy and Governance Framework) ஓரளவிற்கு இருந்தாலும், ஆழ்கடல் மற்றும் இரசாயனப் பாதுகாப்பை ஒருங்கிணைக்கும் தெளிவான சட்டக் கட்டமைப்பு அல்லது நிர்வாக ரீதியான ஒருங்கிணைப்பு இன்னும் மேம்படுத்தப்படவேண்டி உள்ளது. முறையான ஆய்வுகளைத் தொடர்ச்சியாக முன்னெடுப்பதற்கான நிதி ஒதுக்கீடுகள் மற்றும் சர்வதேச தரத்திலான கண்காணிப்பு அமைப்புகளை உருவாக்குவதிலும் சவால்கள் நீடிக்கின்றன.

கடந்த காலத்தில், இலங்கையின் கடலோரச் சூழல் இயற்கைச் சமநிலையைத் தாங்கிய ஒரு வலுவான உயிரியல் அமைப்பாக (Biodiversity Structure) விளங்கியது. ஆனால் இன்று, மனிதச் செயற்பாடுகளால் ஏற்படும் மாசுபாடு, வாழிடச் சீரழிவு (Habitat Degradation) மற்றும் எல் நினோ (El Niño) போன்ற காலநிலை மாறுபாடுகள் இந்த இயற்கை அரண்களை படிப்படியாக பலவீனப்படுத்தி வருகின்றன. இந்தப் போக்கு தொடருமானால், எதிர்காலத்தில் கடல்சார் பல்லுயிர், மீன்வளம், கரையோர சமூகங்களின் வாழ்வாதாரம் மற்றும் நாட்டின் நீலப் பொருளாதாரத்தின் (Blue Economy) நிலைத்தன்மை ஆகியவை கடுமையான அச்சுறுத்தலை எதிர்கொள்ளும் அபாயம் உள்ளது.

தர்க்கரீதியாகப் பார்க்கும்போது, இலங்கையிடம் உள்ள கல்விசார் வளங்களை விட, தொழில்நுட்பம் மற்றும் கொள்கை ரீதியான பின்னடைவுகள் (Setbacks) மேலோங்கியே காணப்படுகின்றன. இந்த இடைவெளிகளை நிரப்பாமல் நாம் முழுமையான பாதுகாப்பை உறுதி செய்ய முடியாது.

எதிர்காலத்திற்கான மூலோபாயத் திட்டங்கள்

இரசாயன அச்சுறுத்தல்களை முறியடிக்க அரசாங்கம், கல்வித்துறை மற்றும் தொழில்முறை சூழல்களில் ஒருங்கிணைந்த மாற்றங்கள் அவசியமாகும்.

குறுகிய காலத்தில், இலங்கையின் கடலோர மற்றும் ஆழ்கடல் பகுதிகளில் உருவாகும் இரசாயனப் பாதிப்புகளை ஆரம்ப நிலையிலேயே கண்டறிந்து தொடர்ந்து மதிப்பிடக்கூடிய ஒருங்கிணைந்த கண்காணிப்பு வலையமைப்பை (Integrated Monitoring Network) உருவாக்குவது முதன்மையாக இருக்க வேண்டும். அதேவேளை, தற்போதுள்ள சமுத்திரம் சார் ஒழுங்குமுறைச் சட்டகங்களில் இரசாயன அபாயங்கள் தொடர்பான தெளிவான பிரிவுகளைச் சேர்த்து அவற்றை வலுப்படுத்துவதும் அவசியமாகும். இதனுடன், ஆராய்ச்சியாளர்கள், அரச நிறுவனங்கள் மற்றும் தொழில்நுட்ப நிபுணர்கள் இடையே ஆய்வுத் தகவல்களை விரைவாகப் பகிர்ந்து கொள்ளக்கூடிய தேசிய அளவிலான ஒருங்கிணைந்த தரவுத்தளத்தை (Centralized Database) உருவாக்குவது, அறிவியல் அடிப்படையிலான முடிவுகளுக்கு உறுதியான அடித்தளமாக அமையும்.

நீண்ட கால நோக்கில், அரசாங்கம், பல்கலைக்கழகங்கள் மற்றும் ஆராய்ச்சி நிறுவனங்களை ஒருங்கிணைக்கும் பிரத்யேக கடல்சார் நச்சியல் (Marine Ecotoxicology) ஆராய்ச்சி மையத்தை நிறுவுவது காலத்தின் தேவையாகும். இதனுடன், சர்வதேச நாடுகள் மற்றும் முன்னணி ஆராய்ச்சி நிறுவனங்களுடன் தொழில்நுட்பப் பரிமாற்றங்களையும் அறிவியல் ஒத்துழைப்புகளையும் வலுப்படுத்தி, ஆழ்கடல் கண்காணிப்பிற்குத் தேவையான அதிநவீன கருவிகள், பகுப்பாய்வு வசதிகளைப் பெற்றுக்கொள்ள வேண்டும். மேலும், பல்கலைக்கழகப் பாடத்திட்டங்களில் ஆழ்கடல் இரசாயனவியல் (Deep-sea Chemistry), கடல்சார் நச்சியல், மற்றும் சூழலியல் கொள்கை மேலாண்மை (Environmental Policy Management) போன்ற துறைகளை ஒருங்கிணைப்பதன் மூலம், எதிர்கால கடல்சார் சவால்களை அறிவியல் ரீதியாக எதிர்கொள்ளும் திறன் கொண்ட புதிய தலைமுறை நிபுணர்களை உருவாக்க முடியும்.

கடலின் ஆழத்தில் மறைந்திருக்கும் இரசாயன அச்சுறுத்தல்கள் என்பது ஏதோ ஒரு தூரத்து பிரச்சினை அல்ல, அவை நமது உணவுச் சங்கிலியையும், பொருளாதாரத்தையும், ஒட்டுமொத்த சூழலியலையும் நேரடியாகப் பாதிக்கக்கூடியவை. அது ஒரு தேசிய கடமை. நமது ஆழ்கடல் பொக்கிஷங்களை பாதுகாக்க நாம் தயாராகாவிட்டால், எதிர்கால சந்ததிக்கு நாம் எதை விட்டுச் செல்லப் போகிறோம்?

முகப்புப் படம்: தீ விபத்துக்குப் பின்னர், ஆழ்கடலுக்குள் இழுத்துச் செல்லப்பட்டுக் கொண்டிருந்தபோது இலங்கையின் கொழும்பு கடற்பரப்பில் MV X-Press Pearl கப்பல் மூழ்கியது. புகைப்படம்: இலங்கை விமானப்படை / Reuters

Sri Lanka’s Blue Whales and Ship Strikes

The Pearl Protectors — Sun, 09 Aug 2026 19:25:00 +0000

By: Amaya Wijesinghe

Imagine gliding through the warm waters of the Indian Ocean, where gentle giants rise in graceful arcs. Off Sri Lanka’s southern coast near Mirissa and Galle, a unique group of blue whales calls this place home all year round. As the largest animals on Earth, they bring so much life and wonder to the ocean around Sri Lanka. They also support local communities by attracting visitors who join responsible whale watching tours. Families, nature lovers, and curious travelers from around the world get to experience the unforgettable thrill of seeing these enormous beings up close, often watching in awe as they surface and release misty blows into the tropical air. Yet this natural treasure faces a serious and growing threat: ship strikes.

Sri Lanka’s blue whales gather in nutrient-rich waters to feed on tiny krill and plankton. Unfortunately, these same feeding areas overlap with one of the world’s busiest shipping lanes. Hundreds of cargo vessels pass through every single day, following traffic separation schemes that cut straight across the whales’ prime feeding grounds. Have you ever wondered what happens when a massive ship meets a whale surfacing for air? The result is often tragic and fatal. Whales sometimes wash ashore with terrible propeller wounds or deep gashes along their bodies. Many more deaths happen silently out of sight beneath the waves, leaving no trace for us to see.

Tragic incidents highlight just how dangerous this situation is. Back in 2012, two blue whales were killed within days of each other. One was even found draped over a ship’s bow in Colombo harbour, a heartbreaking image that drew international attention. Researchers have recorded multiple ship-strike deaths between 2010 and 2014. While big strandings are reported less often these days, the risk has not disappeared. Shipping traffic continues to grow steadily with increasing global trade. In recent years, worrying news has emerged. Blue whale sightings have dropped sharply. In 2024, surveys in traditional hotspots recorded only a handful of individuals. That represents more than a 90 percent decline compared to earlier years. Scientists believe this worrying drop comes from several pressures working together. Ship strikes play a major role, along with underwater noise from vessels and changing ocean conditions caused by climate change. These slow-moving giants find it incredibly hard to get out of the way of fast-moving ships. Every loss hurts the population deeply. It weakens social bonds between the whales and reduces breeding success in a group that is already vulnerable. This, in turn, affects the wider marine ecosystem that depends on them.

Recent scientific studies show that ship strikes remain a significant cause of mortality for blue whales in Sri Lankan waters. Similarly, research highlights how the overlap between shipping routes and whale habitats creates persistent danger, even as awareness grows. These findings underline the urgent need for better protection.

The good news is that practical solutions are within reach. For example, shifting the shipping lanes just 15 nautical miles further south could make a huge difference in reducing collisions. Some voluntary offshore routing is already being encouraged, and more ships are following it. Slowing down in key areas would also give whales extra time to avoid danger. Sri Lanka has a real opportunity to show the world how to balance busy trade routes with strong conservation efforts. Protecting these whales does not have to come at the expense of economic growth. With smart planning and cooperation between the government, shipping industry, and conservation groups, both can thrive together.

In conclusion, the future of Sri Lanka’s blue whales depends on all of us taking action together. By learning from past incidents and facing up to today’s threats, we can give these gentle ocean ambassadors a better chance at survival. Let us support smarter maritime practices so these magnificent creatures can keep gracing our waters for many years to come. Their presence enriches the marine environment and brings joy to so many people who visit Sri Lanka’s beautiful coastline. Preserving this natural wonder will benefit both wildlife and local communities for generations ahead. The time to act is now, before it is too late.
Feature Image Credits: www.anantara.com. Whale watching in tangalle.

The Tragedy of the Commons

The Pearl Protectors — Thu, 06 Aug 2026 20:51:00 +0000

By: Sehanthi Samarakoon

The Tragedy of the Commons describes the economic phenomenon in which individuals acting in their own self-interest overexploit a shared resource, ultimately leading to its depletion. This is particularly relevant in marine ecosystems, which represent one of the world’s major shared commons. Under difficult economic conditions fishers tend to prioritize short-term economic gain over marine conservation because of their personal aim of maximizing profit by securing the highest daily catch. When everyone operates under this short-term survival mindset of gaining higher returns daily, this collective resource may collapse. Overfishing, as described by this theory, prevents fish stocks from recovering to sustainable population levels. Harmful government subsidies for fuel, heavy gear, and fleet expansion have been recognized as primary drivers of global overfishing. To combat this crisis, the World Trade Organization (WTO) established The Agreement on Fisheries Subsidies (AFS) was inserted into Annex 1A. The accord aims to prohibit subsidies that facilitate illegal fishing and subsidies for fishing over the limit. Although enforcement measures have been introduced globally, their effect and implementation in a nation such as Sri Lanka remains doubtful at best.

As an island nation, Sri Lanka has long been dependent on the marine resources of the Indian Ocean, leading to the contribution of increased pressure on fisheries, but the overexploitation of these resources is driven by multiple factors that include fishing capacity, economic incentives, and fisheries management. Fish consumption per capita reached 22.7 kg in 2023, which reflects how seafood forms the backbone of the Sri Lankan diet. While high consumption alone does not cause depletion, combining rapid population growth with an open-access fishery creates a dangerous market dynamic. When high market demand drives prices up, overfishing becomes even more lucrative in the short term, trapping local communities in a vicious cycle. The availability of destructive fishing gear in the market for low prices has exacerbated this issue, leading to fishing practices that not only facilitate overfishing but also destroy the surrounding ecosystem. Overfishing is not limited to saltwater ecosystems; freshwater species are also threatened. Among those affected are several species endemic to Sri Lanka, including the Green Labeo (Mountain Labeo) and Cherry Barb, which are struggling to survive in their threatened natural habitats.

Overfishing directly threatens marine biodiversity, disrupting the marine food web and pushing vulnerable species toward localized extinction. Highly damaging fishing methods and gear, such as dynamite, and bottom trawling, act as underwater bulldozers. They do not merely catch targeted fish; they cause significant physical damage to the marine habitats. These practices do not merely remove targeted fish; they can also damage coral reefs and seagrass beds, which provide important nursery habitats for marine species. Such habitat degradation can further undermine the recovery of fish populations and exacerbate the effects of overfishing. Furthermore, the Tragedy of the Commons is exacerbated when law enforcement fails. Major loopholes exist in Sri Lankan laws, such as the Regulation of Foreign Fishing Boats Act No. 59 of 1979, which does not clearly specify prohibited fishing gear and methods. In addition, there seems to be no specific penalty system for the use of the prohibited gear. This raises concerns towards urgent reformation of the existing laws for sustainable fisheries in Sri Lanka. Without explicit, updated prohibitions and penalties that outweigh the potential profits of illegal catches, the law remains ineffective. The country needs to act fast to protect the ocean resources, no longer as an ideal but as a necessity for the island’s long-term food security and economic stability. Only by shifting focus from short-term exploitation and economic gains to long-term sustainability and stability can the nation ensure that its seas continue to provide for generations to come.
Feature Image: Busy Negambo Harbour – second largest fish market in Sri Lanka

Turtle Hatchery Tourist Attractions in Sri Lanka: Conservation Effort or Exploitation for Profit?

The Pearl Protectors — Fri, 31 Jul 2026 09:31:41 +0000

By: Moira Alfred

Sri Lanka is an internationally prominent nesting ecosystem for sea turtles. Five of the world’s seven sea turtle species, namely the Green, Leatherback, Loggerhead, Hawksbill, and Olive Ridley, reside within the warm waters of Sri Lanka. Although all 05 species are legally preserved, egg poaching and consumption have repeatedly devastated existing nesting populations along the island’s southwestern and southern coastal regions. Turtle hatcheries materialized as the leading solution to this hazard, although later progressed into something more commercially problematic than basic preservation. Scientific literature mirrors profound opacity regarding whether hatchery commerce genuinely protects turtles or selfishly profits from these miraculous creatures.

The hatchery models consist of a vast institutional history. The first hatchery was established in the year 1956 as a conservation measure to mitigate the impacts of sea turtle meat and egg exploitation, and the second establishment followed in the year 1969. Despite the ban on the collection of sea turtle eggs in 1972, existing hatcheries continued to operate, leading new hatcheries to open illegally. The constant instability in the count of hatchery establishments throughout the years indicates that the conservation sector is driven more by commercial purposes than by actual conservation logic.

The profit motive is evidently not incidental. Its intentions are evident in a 2013 survey conducted across the seven hatcheries operating on the southwestern coast, published in the Indian Ocean Turtle Newsletter. It presents its findings that all the hatcheries were privately owned and that the primary motive was profiting from ecotourism mechanisms. During the 1990s, hatcheries only operated during the tourism season, but a growing trend depicts their operations throughout the year. The most common practice was to purchase turtle eggs from consistent collectors for 25.00 – 50.00 rupees (0.07 to 0.12 USD), even during off seasons. This may have been beneficial for the magnificent species, since purchasing eggs from collectors has directly lowered the level of turtle egg consumption. However, purchasing eggs directly from suppliers has established a market value for the eggs, creating an economic incentive that stimulated poaching activities rather than suppressing them.

The scale of egg collection has grown to be a vastly substantial activity. An estimate of 300,000 eggs are relocated annually within the district of Galle alone. A survey conducted in 2013 presents findings that none of the existing hatcheries follow best practice guidelines, which require at least 90% of the hatchlings to have immediate crawling access to the sea to promote natural imprinting and that hatchlings must not be contained to tanks prior to their release. Instead, all seven existing hatcheries engaged in “head-starting”, restricting hatchlings in tanks for tourist interactions. This is a practice with no demonstrated conservation benefits and documented welfare costs.

A follow-up survey of 11 hatcheries, also published in “The Indian Ocean Turtle Newsletter (IOTN)” written by Andrea D. Phillott, Santhushya Hewapathiranage, and Rupika S. Rajakaruna, established that these problems persisted and, in some respects, even worsened. Concerns included unregulated nest density of up to three nests per square meter, with only one hatchery maintaining the recommended spacing between nests, and the uncertainty in self-reported hatching success figures that made it difficult to assess resource management practices and their actual impact on hatchling production.

Scientific criticism of the hatchery industry extends beyond operational practices. The gender of sea turtles is determined by incubation temperatures. Hatcheries that fail to provide these expected conditions result in skewed gender ratios among the species. Nests located closer than regulated conditions generate sufficient metabolic heat, raising the overall temperature of the habitats and potentially producing unnatural proportions of females, which is fatally detrimental to the existing numbers of the species. The consequences of any demographic distortion will not be visually evident until at least a decade. Furthermore, moving eggs reduces hatching success rates from 90% in natural nests to rates between 50% to 70% in artificial hatcheries.

The survey carried out in 2013 stressed the fact that none of the hatcheries were involved in collaborative research, nor did they provide visitor education contributing to sea turtle conservation. This sense of research disengagement is damaging to any claim of conservation, as hatcheries could, in principle, contribute profoundly to monitoring population data if overseen with scientific and ethical intent.

Sri Lanka’s turtle hatchery industry does contain a few genuine conservation operations alongside commercially driven enterprises that use conservation as a manipulation tactic to attract tourists. Without mandatory licensing, independent inspection, enforced adherence to regulations, and requirements for scientific data collection, this sector will continue to perish and exploit the remaining numbers of these magnificent creatures. The window for meaningful action is narrowing, and inaction is not a negligible responsibility. It is a choice to let extinction proceed.
Feature Image Credits: www.thrillophilia.com

Feared but harmless: The gentle manta rays of Sri Lankan waters

The Pearl Protectors — Sun, 26 Jul 2026 20:59:00 +0000

By: Amaya Wijesinghe

Sri Lanka is renowned for its blue whales, dolphins, and sea turtles, yet another remarkable giant quietly inhabits its surrounding seas, the manta ray. Despite its impressive size, this graceful creature remains one of the country’s least understood marine species.

For generations, Sri Lankans have used the phrase “madu waligen gahanna” (to be struck by a manta ray’s tail) to describe severe punishment or misfortune. Such expressions have contributed to the belief that manta rays are dangerous animals. In reality, nothing could be further from the truth.

Manta rays are among the gentlest creatures in the ocean. They are harmless to humans, lacking both the venomous sting and aggressive behaviour commonly associated with some other ray species. Instead, they glide gracefully through the water, feeding almost exclusively on tiny plankton and small fish.

With wingspans reaching up to seven metres, manta rays are among the largest rays in the world. Their distinctive diamond-shaped bodies and wing-like pectoral fins allow them to move effortlessly through the sea. Highly intelligent and curious, they are known to interact peacefully with divers and are often considered one of the most captivating marine animals to encounter underwater.

Sri Lanka’s waters form part of the biologically rich northern Indian Ocean, making them an important habitat for both the oceanic manta ray (Mobula birostris) and the reef manta ray (Mobula alfredi). These highly migratory species travel vast distances in search of plankton-rich feeding grounds, cleaning stations where smaller fish remove parasites, and suitable breeding areas.

The country’s seasonal monsoons play a crucial role in attracting these gentle giants. Ocean currents generated by the monsoon bring nutrient rich waters to the surface, triggering plankton blooms that provide an abundant food source for manta rays. As a result, sightings are regularly reported around Mirissa, Trincomalee, Kalpitiya, and other offshore locations, particularly during favourable seasons. Lucky divers and whale watchers may even witness manta rays leaping spectacularly from the water or feeding in groups near the surface.

Despite these regular sightings, surprisingly little is known about manta ray populations in Sri Lankan waters. While whales have been the focus of extensive research and monitoring, manta rays remain relatively understudied. Scientists believe Sri Lanka may serve as an important migration corridor connecting manta populations across the Indian Ocean, but further research is needed to confirm these movements through satellite tracking, photo-identification, and genetic studies.

Understanding these migration routes is vital for conservation. Manta rays face growing threats from accidental capture in fishing gear, collisions with vessels, plastic pollution, and the degradation of coastal habitats. Their slow growth, late maturity, and low reproductive rate mean populations recover very slowly once they decline, making them particularly vulnerable to human activities.

Protecting important feeding grounds and migration routes could help safeguard these remarkable animals. Strengthening marine protected areas, promoting responsible fishing practices, supporting scientific research, and raising public awareness are all essential steps towards ensuring their survival.

As an island nation surrounded by one of the world’s richest marine ecosystems, Sri Lanka has both an opportunity and a responsibility to protect species like the manta ray. By improving research and conservation efforts, the country can play a significant role in safeguarding these gentle ocean giants while preserving the health and biodiversity of the Indian Ocean for generations to come.
Feature Image Credits: blog.padi.com

The Gardens Under the Sea: How Simple Grass Could Save Sri Lanka’s Fishermen and Fight Climate Change

The Pearl Protectors — Sun, 12 Jul 2026 20:27:00 +0000

By: Rukmi Peiris

A Hidden World

Sail just a few meters away from the coast of Sri Lanka, and the blue water below looks deep, ordinary and empty. But beneath that surface, there is something that worth our attention. It is neither full of different colors nor build of corals. It is seagrass meadows or the ‘Gardens Under the Sea’, green, gentle, swaying with the ocean currents like grass in a field dancing in the wind. And it may be one of the most important treasures in the sea that we have largely ignored.

What is Seagrass?

Seagrass is heralded as the only flowering plant capable of growing in saltwater, complete with roots, leaves, seeds, and flowers. Even though thrive beneath the waves, it functions much like the grass in our gardens. Seagrasses are also known as the “Lungs of the Sea” due to its ability to produce up to 10 liters of oxygen per square meter each day through photosynthesis.

For years, seagrass has flourished along Sri Lanka’s coastline silently. Marine species rely on it; some make it their shelter while some make it their food source. Fish hides among its leaves, turtles graze on it. Yet most of us do not properly aware about its’ existence. Now, scientists are turning their attention to these meadows and their findings are remarkably.

A Nursery for Fish

Imaging a bustling city without any buildings or homes, where all the people wander openly, expose to danger. That is what the ocean would be like without seagrass. Baby fish, prawns, crabs, even juvenile sharks need places to hide from predators. They need food while they seek cover. Seagrass fields can provide them all. When these young creatures grow, they swim out to the sea and eventually return to the nets of fishermen. Without sea grass, there would be fewer fish, fewer options for fishers, and ultimately, lower incomes. So, naturally, seagrass is not just a grass, but a nursery that helps fill our dinner plates.

The Climate Hero You Never Heard Of

We are all familiar with the concept of “Plant a tree. Save the planet.” That holds true, but seagrass does something even greater. Despite covering only about 0.2% of the ocean floor, seagrass captures carbon; the primary drive of global warming, at a rate over 30 times faster than a rainforest. Yes, a forest beneath the sea works harder than a forest on land.

Moreover, unlike trees, seagrass stores that carbon deep in the sediment, locking it away for centuries. It accounts that approximately 10% of the carbon buried in ocean sediment annually. Scientists call this trapped carbon as “Blue carbon”. Along the coastline of Sri Lanka, vast quantities of these heroes are quietly at work.

What Is Happening to the Meadows?

It is estimated that nearly 29% of the world’s seagrass has been lost since the 1880s. In Sri Lanka, the current rate of decline is estimated at 1-2% per year. For example, the seagrasses ecosystems in the northern, eastern and western parts of the Negombo Lagoon declined by an estimated 96% between 1997 and 2004.

Recent studies indicate that this downward trend is accelerating largely, due to human activities such as boats dredging for prawn farms and the disposal of urban waste into the ocean water. Some of these activities even block sunlight from reaching the sea bed, hindering photosynthesis and threatening the survival of seagrass.

The consequences are twofold. First, fish population will gradually decrease, leaving fishermen with smaller catches and low incomes. Second, all the stored blue carbon will escape back into the atmosphere, turning the former ally against climate change into a contributor to the very problem it once helped mitigate.

A New Idea : Paying to Protect

There is an idea that is not new to the world, but relatively new to Sri Lanka. It is Blue Carbon Credits. Under this model, companies pay local communities to protect seagrass meadows, offsetting the environmental damage they are cause. As a result, seagrass habitat will be preserved, carbon will be captured, companies will meet their sustainability goals and local community will receive compensation for safeguarding these vital ecosystems.

In Sri Lanka, researchers are already mapping the seagrass along the coast, counting fish and measuring carbon stocks, while engaging with fishing communities. There were previous projects, particularly focused on mangroves. However, they were put on hold due to a lack of clear authorization processes, benefit sharing agreements and regulatory frameworks surrounding carbon rights. If these challenges can be overcome, a coastal village might earn a tangible income simply by protecting the seagrass in their area, rather than destroying it.

What We Can Do?

We do not have to be a scientist to make a difference. Simply search, read and share this story. The Garden Under the Sea have been silently protecting us for so long; now it is our turn to protect them. The survival of seagrass means the survival of marine life, and along with it, the livelihood of fishermen. And our Pearl Island will breathe a little easier.

Feature Image Credits: https://news.mongabay.com/ – A healthy seagrass meadow in northern Sri Lanka.