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Man-eater crocodile in Mankulam

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by Junglewallah

(Continued from last week)

Before leaving Mankulam area, I had an experience worth relating on one of my visits to Karupaddaimurippu . It was in July or August, the time of the drought. In a little hamlet called Olumadu, situated about a mile from Karupaddaimurippu, there was a tiny village tank that had dried down to about half its normal size. Visiting this village I was shown a villager who about a week earlier had been seized around his head by a small crocodile, approximately four feet long, whilst bathing. The wounds around his head had still not healed completely. The villager told Master and me that whilst ducking his head under the water, in the customary village style of bathing, he suddenly found himself gripped round his head.

Since the crocodile was small and he was close to the shore, he had struggled ashore with the crocodile still grimly gripping him by the head. The villagers who were close by had killed the animal. Its skin was shown to me, thus confirming both the story and the miniature size of the man-eater. One can only imagine that it was the absolute drought and scarcity of food that had made the crocodile attack a prey so much larger that itself. Since Olumadu is an isolated village tank, some 20 miles from the sea-coast and away from any estuarine river, the animal was almost certainly a marsh or tank crocodile (Crocodilus palustris) or geta kimbula. The skin shown to me was badly removed and too poorly preserved to make any definite identification possible, but for the reasons earlier stated it was in all probability a marsh or tank crocodile.

What was interesting is that the tank crocodile, unlike the estuarine one, is not reputed to be a man-eater but primarily a fish eater. It would appear, however, that hunger would make any animal forget its normal behavioral pattern and attempt to secure any kind of food that it thinks is edible.

 

Fishing in east coast

I had the good fortune, before the beautifully scenic east coast of our Island became a troubled area, to camp out and engage in fishing at practically all river and lagoon estuaries of the area. Starting from the north at Mullaitivu as far as I could recollect, they were Nayaru, Kokillai, Yan Oya, Puduvaikattumalai, Irakkakandy (Nilaweli), Salapai Aru (Kuchaveli), Kinniya, Kiliveddi, Genge (the main mouth of the Mahaveli), Ilangatturai (the mouth of the Ullakelle lagoon), Verugal, Vakarai, Batticaloa lagoon mouth, Oluvil (where the old Gal Oya flowed out to sea), Sinnamuttuvaram (where there was an idyllic little rest house, now alas no more), Komari lagoon, Kottakal,Arugam Bay lagoon, Heda Oya (or Naval Aru); Wila Oya (at Panama) Panakala, Kunukala, Andarakala, Itigala, Girikula, Yakala, Helawa and Kumana (where the Kumbukkan Oya flows out to sea). The other two estuaries on the east coast that I have visited but was unable to fish at, were Pottana in the Strict Natural Reserve (a lagoon mouth) and Pilinnawa, where the Menik Ganga flows out to sea. Both these estuaries lie within protected areas.

With regard to my experience as an angler, my mentor from schoolboy days and close friend in later years, from whom I learned virtually everything as an angler, was the late Lionel Gooneratne of the Excise Department. This Department had spawned a breed of outstanding anglers in addition to Lionel, such as Willie Obeysekera and Ronnie Grenier, but the one whom I knew most closely was Lionel. I have been his companion on trips to practically all the east coast estuaries named in the list, with the exception of Panakala, Kunukala, Andarakala, Itikala, Girikula, Yakala and Helawa, where my guide and mentor was the legendary Menika, de facto headman of the purana village of Kumana and jungle man par excellence. Menika had been presented with a fibreglass rod and a Penn 209 multiplier reel by one of his other jungle friends, Dr. Douglas de Zilwa (formerly Police Surgeon). When I came to know Menika, he was quite an adept at casting with that rod and reel. I learnt a great deal from him. Another close friend andngling companion from whom I gathered a lot about fishing was the late Frank Kelly of Trincomalee, who was employed in the Irrigation Department.

Yet another close friend from whom I learnt a great deal about trolling for fish in the Eastern seas, ranging from the Great and Little Basses up to the mouth of the Mahaweli, was Cedric Martenstyn. Cedric’s knowledge of fish and their habits gained through years of diving and fishing, could not be surpassed.

I was also fortunate in associating very closely and camping with two professional fishermen, Manuel Silva alias Vedamahatmaya of Nayaru, whose home at Negombo was in Pitipana, and William Nanayakkara of Kallarawa Yan Oya, whose west coast home was at Bopitiya, Pamunugama.

Another close fishing and shooting companion on the east coast was M. Rajavorathiam, the sub-postmaster of Komari and known throughout the area as “Raju”. I learnt a great deal from him of wild boar shooting in the east coast areas, and fishing at Komari Kalapu. Last but not the least of my mentors was Peter Jayawardena, who retired as Game Ranger at Lahugala in the Eastern Province, whose knowledge of the east coast estuaries, particularly from Sinnamuttuvaram down to Kumana, was unparalleled. Peter was also a close friend of Lionel Gooneratne, and what I learned from these giants, both by discussions and by the camping trips we made together, could not have been gathered anywhere else.

At the outset, it must be explained that at any estuary mouth, the fishing is best within the first hour or so of the change of the tide, and at the time of slack water (mandiya) just before the change of the tide. At some estuaries fishing is most productive on the incoming tide and at others on the outgoing, and it is difficult to say which is the case until one tries a particular estuary. Generally however, both changes of tide at the early stage produce fish, and the fishing is much better during the evening tide change towards dusk. It must also be mentioned that fishing is best about three or four days before the full moon, when the tidal flows governed by the waxing moon are strong. Additionally, ,the moonlight in the water eliminates the luminous effects of the sea plankton (called kabba in Sinhala), which otherwise has a tendency to scare off any predatory fish that is tempted to attack the artificial bait that is cast and retrieved by the angler. The kabba makes the retrieved artificial bait look like a miniature comet and no fish would go near it.

A tide change takes place approximately every five hours 55 minutes each day with about a 10 minute period of slack water between tidal changes. The outgoing tide, where the river or lagoon water flows strongly out to sea (ba dhiya) is followed by an approximately 10 to 15 minute spell of slack water (mandiya) where it is neither flowing out nor flowing in. Then follows the five hour 55 minutes of incoming tide when the sea water flows into the river or lagoon (vada dhiya). Each day the tide changes about one hour later than the previous day, governed by the rising of the moon, which takes place an hour later each day. My most extensive east coast fishing and shooting experiences were at Nayaru, south of Mullaitivu where I camped for a continuous spell of about three months from around March 1961. I was looked after like a member of his family by Manuel Silva (Vedamahataya), who built a small wadiya for me to live in. I used to visit Nayaru subsequently as well, at regular intervals.

My next most intimate knowledge of east coast estuaries was of Yan Oya. I have camped there every year in March or April from about 1965 till the 1980s, when conditions in the east became unsettled; and at Kumana and Komari again, where I camped regularly till the 1980s. The incidents recounted hereafter relate to both fishing and shooting, and also contain bits of local history gleaned from my outdoor friends.

 

Nayaru

Dealing with Nayaru first, in the early days I used not only to fish at the estuary mouth, but frequently joined Manuel Silva and his two stalwart sons, Philip and Joseph when they went out to sea in their big sea-going outrigger sailing canoe, a ruwal oruwa to do their daily fishing (rakshava, as they termed it) by hand-lining. Manuel’s family were purist hook-and-hand-line fishermen. They moored their boat out at sea, sometimes as far as five to 10 miles from the shore, over submerged rocks, mud flats and old wrecks, catching fish by hand-lines on baited hooks. They never used nets, saying they caught water- logged and decomposing fish.

When shoals of seer moved in, they ran with trolling lines cast out either with dead baits or the few artificial baits they had, which I had given them. It may be mentioned that artificial baits were virtually unknown to the professional fisherman at Nayaru in the early 1960s.

We had interesting encounters with denizens of the deep on these trips. On a run south of Nayaru towards Kokillai, we passed through a large colony of what must have been close to a hundred sea snakes, banded with yellow and black rings round their bodies and with vertically compressed tails. I subsequently heard that sea snakes gather in swarms during the breeding season.

On other occasions I have seen giant manta rays pass quite close to the ruwal oruwa. Since it had no engine noise, it probably did not scare off these fish. On another occasion, some distance from the boat, one of these giant rays leapt into the air, as apparently they sometimes do, and landed with a tremendous splash. There are conflicting views as to whether this is a manifestation of high spirits or an endeavour to get rid of irritating parasites.

Whales were also sometimes seen breaching the water, and the professional fishermen took them for granted. It was only much later, in the 1970s, that a foreign marine research vessel from the Woods Hole Oceanographic Institute of the USA. along with our own famed marine zoologist, Rodney Jonklaas found that the area round Trincomalee was a gathering ground for whales, particularly humpback and blue whales.

According to Manuel Silva, his family from Pitipana, Negombo, at least from the time of his grandfather, belonged to that hardy breed of migrant fishermen. These fisherfolk migrate to the east coast in March each year, when the south-west monsoon sets in and makes the west coast seas rough. The east coast is then calm and there is a strong shore breeze, which is called goda sulang by the Sinhala fishermen, solaham by the east coast Tamil fishermen and kachchan by Wanni jungle villagers. At this time the fish are prolific in the eastern seas, affording good catches.

These migrant Sinhala fishing families were quite fluent in Tamil and used to live in complete harmony with their Tamil and Muslim brethren belonging to both fishing and farming communities. If at all they returned to their homes in the west coast, it was only for a short time during Christmas (they are mostly Roman Catholics). When the migrant fishermen returned for Christmas they sometimes stayed on until February and did fishing on the west coast when the seas were calm at this time. The north-east monsoon makes the east coast seas rough between November or December to February.

I found, however, that with the fishermen off the west coast becoming more numerous, an increasing number of migrant fishing families preferred to stay on in Nayaru and the other east coast encampments over Christmas and engage in lagoon fishing during this period (kalapu rakshava). Lagoon waters, being sheltered, remain calm and unaffected by the north-east monsoon that prevails at this time.

Among the anecdotes related to me by Manuel Silva of Nayaru during my camping days was an interesting account related to him by his grandfather.

During the days his grandfather was a pioneer among the fishermen in Nayaru, the area was desolate and thickly forested. The small group of fisherfolk used to walk from Nayaru to Kokkutudavai about four miles to the south, where there was a fresh water lake where they used to bathe and wash their clothes. The road ran through a deep cutting in a hilly area with brick-red soil (which still exists today); and the story goes that on top of the cutting in the forested cover there lived a leopard that used to periodically prey on the unwary fisherfolk who walked along the path. The leopard used to leap from the top of the cutting, seize its selected victim and take off into the opposite bank where the cutting was less steep. The fisherfolk had no defence except to go in numbers, shouting and beating drums. The leopard after taking a regular toll of victims, apparently vanished one day, possibly killed in some way by the resident Tamil villagers of Kokkutudavai, but how no one knew.

I counter checked this story with another old fishing family at Nayaru, and their account tallied. So, it seems that there were lesser-known man-eating leopards in our Island before those of Punani and Kataragama.

 



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Ramadan 2026: Fasting hours around the world

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The Muslim holy month of Ramadan is set to begin on February 18 or 19, depending on the sighting of the crescent moon.

During the month, which lasts 29 or 30 days, Muslims observing the fast will refrain from eating and drinking from dawn to dusk, typically for a period of 12 to 15 hours, depending on their location.

Muslims believe Ramadan is the month when the first verses of the Quran were revealed to the Prophet Muhammad more than 1,400 years ago.

The fast entails abstinence from eating, drinking, smoking and sexual relations during daylight hours to achieve greater “taqwa”, or consciousness of God.

Why does Ramadan start on different dates every year?

Ramadan begins 10 to 12 days earlier each year. This is because the Islamic calendar is based on the lunar Hijri calendar, with months that are 29 or 30 days long.

For nearly 90 percent of the world’s population living in the Northern Hemisphere, the number of fasting hours will be a bit shorter this year and will continue to decrease until 2031, when Ramadan will encompass the winter solstice, the shortest day of the year.

For fasting Muslims living south of the equator, the number of fasting hours will be longer than last year.

Because the lunar year is shorter than the solar year by 11 days, Ramadan will be observed twice in the year 2030 – first beginning on January 5 and then starting on December 26.

INTERACTIVE - Ramadan 2026 33 year fasting cycle-1770821237
(Al Jazeera)

Fasting hours around the world

The number of daylight hours varies across the world.

Since it is winter in the Northern Hemisphere, this Ramadan, people living there will have the shortest fasts, lasting about 12 to 13 hours on the first day, with the duration increasing throughout the month.

People in southern countries like Chile, New Zealand, and South Africa will have the longest fasts, lasting about 14 to 15 hours on the first day. However, the number of fasting hours will decrease throughout the month.

INTERACTIVE - Fasting hours around the world-1770821240

[Aljazeera]

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The education crossroads:Liberating Sri Lankan classroom and moving ahead

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Education reforms have triggered a national debate, and it is time to shift our focus from the mantra of memorising facts to mastering the art of thinking as an educational tool for the children of our land: the glorious future of Sri Lanka.

The 2026 National Education Reform Agenda is an ambitious attempt to transform a century-old colonial relic of rote-learning into a modern, competency-based system. Yet for all that, as the headlines oscillate between the “smooth rollout” of Grade 01 reforms and the “suspension of Grade 06 modules,” due to various mishaps, a deeper question remains: Do we truly and clearly understand how a human being learns?

Education is ever so often mistaken for the volume of facts a student can carry in his or her head until the day of an examination. In Sri Lanka the “Scholarship Exam” (Grade 05) and the O-Level/A-Level hurdles have created a culture where the brain is treated as a computer hard drive that stores data, rather than a superbly competent processor of information.

However, neuroscience and global success stories clearly project a different perspective. To reform our schools, we must first understand the journey of the human mind, from the first breath of infancy to the complex thresholds of adulthood.

The Architecture of the Early Mind: Infancy to Age 05

The journey begins not with a textbook, but with, in tennis jargon, a “serve and return” interaction. When a little infant babbles, and a parent responds with a smile or a word or a sentence, neural connections are forged at a rate of over one million per second. This is the foundation of cognitive architecture, the basis of learning. The baby learns that the parent is responsive to his or her antics and it is stored in his or her brain.

In Scandinavian countries like Finland and Norway, globally recognised and appreciated for their fantastic educational facilities, formal schooling does not even begin until age seven. Instead, the early years are dedicated to play-based learning. One might ask why? It is because neuroscience has clearly shown that play is the “work” of the child. Through play, children develop executive functions, responsiveness, impulse control, working memory, and mental flexibility.

In Sri Lanka, we often rush like the blazes on earth to put a pencil in the hand of a three-year-old, and then firmly demanding the child writes the alphabet. Contrast this with the United Kingdom’s “Birth to 5 Matters” framework. That initiative prioritises “self-regulation”, the ability to manage emotions and focus. A child who can regulate their emotions is a child who can eventually solve a quadratic equation. However, a child who is forced to memorise before they can play, often develops “school burnout” even before they hit puberty.

The Primary Years: Discovery vs. Dictation

As children move into the primary years (ages 06 to 12), the brain’s “neuroplasticity” is at its peak. Neuroplasticity refers to the malleability of the human brain. It is the brain’s ability to physically rewire its neural pathways in response to new information or the environment. This is the window where the “how” of learning becomes a lot more important than the “what” that the child should learn.

Singapore is often ranked number one in the Programme for International Student Assessment (PISA) scores. It is a worldwide study conducted by the Organisation for Economic Co-operation and Development (OECD) that measures the scholastic performance of 15-year-old students in mathematics, science, and reading. It is considered to be the gold standard for measuring “education” because it does not test whether students can remember facts. Instead, it tests whether they can apply what they have learned to solve real-world problems; a truism that perfectly aligns with the argument that memorisation is not true or even valuable education. Singapore has moved away from its old reputation for “pressure-cooker” education. Their current mantra is “Teach Less, Learn More.” They have reduced the syllabus to give teachers room to facilitate inquiry. They use the “Concrete-Pictorial-Abstract” approach to mathematics, ensuring children understand the logic of numbers before they are asked to memorise formulae.

In Japan, the primary curriculum emphasises Moral Education (dotoku) and Special Activities (tokkatsu). Children learn to clean their own classrooms and serve lunch. This is not just about performing routine chores; it really is as far as you can get away from it. It is about learning collaboration and social responsibility. The Japanese are wise enough to understand that even an absolutely brilliant scientist who cannot work in a team is a liability to society.

In Sri Lanka, the current debate over the 2026 reforms centres on the “ABCDE” framework: Attendance, Belongingness, Cleanliness, Discipline, and English. While these are noble goals, we must be careful not to turn “Belongingness” into just another checkbox. True learning in the primary years happens when a child feels safe enough to ask “Why?” without the fear of being told “Because it is in the syllabus” or, in extreme cases, “It is not your job to question it.” Those who perpetrate such remarks need to have their heads examined, because in the developed world, the word “Why” is considered to be a very powerful expression, as it demands answers that involve human reasoning.

The Adolescent Brain: The Search for Meaning

Between ages 12 and 18, the brain undergoes a massive refashioning or “pruning” process. The prefrontal cortex of the human brain, the seat of reasoning, is still under construction. This is why teenagers are often impulsive but also capable of profound idealism. However, with prudent and gentle guiding, the very same prefrontal cortex can be stimulated to reach much higher levels of reasoning.

The USA and UK models, despite their flaws, have pioneered “Project-Based Learning” (PBL). Instead of sitting for a history lecture, students might be tasked with creating a documentary or debating a mock trial. This forces them to use 21st-century skills, like critical thinking, communication, and digital literacy. For example, memorising the date of the Battle of Danture is a low-level cognitive task. Google can do it in 0.02 seconds or less. However, analysing why the battle was fought, and its impact on modern Sri Lankan identity, is a high-level cognitive task. The Battle of Danture in 1594 is one of the most significant military victories in Sri Lankan history. It was a decisive clash between the forces of the Kingdom of Kandy, led by King Vimaladharmasuriya 1, and the Portuguese Empire, led by Captain-General Pedro Lopes de Sousa. It proved that a smaller but highly motivated force with a deep understanding of its environment could defeat a globally dominant superpower. It ensured that the Kingdom of Kandy remained independent for another 221 years, until 1815. Without this victory, Sri Lanka might have become a full Portuguese colony much earlier. Children who are guided to appreciate the underlying reasons for the victory will remember it and appreciate it forever. Education must move from the “What” to the “So What about it?

The Great Fallacy: Why Memorisation is Not Education

The most dangerous myth in Sri Lankan education is that a “good memory” equals a “good education.” A good memory that remembers information is a good thing. However, it is vital to come to terms with the concept that understanding allows children to link concepts, reason, and solve problems. Memorisation alone just results in superficial learning that does not last.

Neuroscience shows that when we learn through rote recall, the information is stored in “silos.” It stays put in a store but cannot be applied to new contexts. However, when we learn through understanding, we build a web of associations, an omnipotent ability to apply it to many a variegated circumstance.

Interestingly, a hybrid approach exists in some countries. In East Asian systems, as found in South Korea and China, “repetitive practice” is often used, not for mindless rote, but to achieve “fluency.” Just as a pianist practices scales to eventually play a concerto with soul sounds incorporated into it, a student might practice basic arithmetic to free up “working memory” for complex physics. The key is that the repetition must lead to a “deep” approach, not a superficial or “surface” one.

Some Suggestions for Sri Lanka’s Reform Initiatives

The “hullabaloo” in Sri Lanka regarding the 2026 reforms is, in many ways, a healthy sign. It shows that the country cares. That is a very good thing. However, the critics have valid points.

* The Digital Divide: Moving towards “digital integration” is progressive, but if the burden of buying digital tablets and computers falls on parents in rural villages, we are only deepening the inequality and iniquity gap. It is our responsibility to ensure that no child is left behind, especially because of poverty. Who knows? That child might turn out to be the greatest scientist of all time.

* Teacher Empowerment: You cannot have “learner-centred education” without “independent-thinking teachers.” If our teachers are treated as “cogs in a machine” following rigid manuals from the National Institute of Education (NIE), the students will never learn to think for themselves. We need to train teachers to be the stars of guidance. Mistakes do not require punishments; they simply require gentle corrections.

* Breadth vs. Depth: The current reform’s tendency to increase the number of “essential subjects”, even up to 15 in some modules, ever so clearly risks overwhelming the cognitive and neural capacities of students. The result would be an “academic burnout.” We should follow the Scandinavian model of depth over breadth: mastering a few things deeply is much better than skimming the surface of many.

The Road to Adulthood

By the time a young adult reaches 21, his or her brain is almost fully formed. The goal of the previous 20 years should not have been to fill a “vessel” with facts, but to “kindle a fire” of curiosity.

The most successful adults in the 2026 global economy or science are not those who can recite the periodic table from memory. They are those who possess grit, persistence, adaptability, reasoning, and empathy. These are “soft skills” that are actually the hardest to teach. More importantly, they are the ones that cannot be tested in a three-hour hall examination with a pen and paper.

A personal addendum

As a Consultant Paediatrician with over half a century of experience treating children, including kids struggling with physical ailments as well as those enduring mental health crises in many areas of our Motherland, I have seen the invisible scars of our education system. My work has often been the unintended ‘landing pad’ for students broken by the relentless stresses of rote-heavy curricula and the rigid, unforgiving and even violently exhibited expectations of teachers. We are currently operating a system that prioritises the ‘average’ while failing the individual. This is a catastrophe that needs to be addressed.

In addition, and most critically, we lack a formal mechanism to identify and nurture our “intellectually gifted” children. Unlike Singapore’s dedicated Gifted Education Programme (GEP), which identifies and provides specialised care for high-potential learners from a very young age, our system leaves these bright minds to wither in the boredom of standard classrooms or, worse, treats their brilliance as a behavioural problem to be suppressed. Please believe me, we do have equivalent numbers of gifted child intellectuals as any other nation on Mother Earth. They need to be found and carefully nurtured, even with kid gloves at times.

All these concerns really break my heart as I am a humble product of a fantastic free education system that nurtured me all those years ago. This Motherland of mine gave me everything that I have today, and I have never forgotten that. It is the main reason why I have elected to remain and work in this country, despite many opportunities offered to me from many other realms. I decided to write this piece in a supposedly valiant effort to anticipate that saner counsel would prevail finally, and all the children of tomorrow will be provided with the very same facilities that were afforded to me, right throughout my career. Ever so sadly, the current system falls ever so far from it.

Conclusion: A Fervent Call to Action

If we want Sri Lanka to thrive, we must stop asking our children, “What did you learn today?” and start asking, “What did you learn to question today?

Education reform is not just about changing textbooks or introducing modules. It is, very definitely, about changing our national mindset. We must learn to equally value the artist as much as the doctor, and the critical thinker as much as the top scorer in exams. Let us look to the world, to the play of the Finns, the discipline of the Japanese, and the inquiry of the British, and learn from them. But, and this is a BIG BUT…, let us build a system that is uniquely Sri Lankan. We need a system that makes absolutely sure that our children enjoy learning. We must ensure that it is one where every child, without leaving even one of them behind, from the cradle to the graduation cap, is seen not as a memory bank, but as a mind waiting to be set free.

by Dr B. J. C. Perera
MBBS(Cey), DCH(Cey), DCH(Eng), MD(Paed), MRCP(UK), FRCP(Edin), FRCP(Lond), FRCPCH(UK), FSLCPaed, FCCP, Hony. FRCPCH(UK), Hony. FCGP(SL)
Specialist Consultant Paediatrician and Honorary Senior Fellow, Postgraduate Institute of Medicine, University of Colombo, Sri Lanka.
Joint Editor, Sri Lanka
Journal of Child Health]
Section Editor, Ceylon Medical Journal

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Giants in our backyard: Why Sri Lanka’s Blue Whales matter to the world

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Whales in the seas off Sri Lanka

Standing on the southern tip of the island at Dondra Head, where the Indian Ocean stretches endlessly in every direction, it is difficult to imagine that beneath those restless blue waves lies one of the greatest wildlife spectacles on Earth.

Yet, according to Dr. Ranil Nanayakkara, Sri Lanka today is not just another tropical island with pretty beaches – it is one of the best places in the world to see blue whales, the largest animals ever to have lived on this planet.

“The waters around Sri Lanka are particularly good for blue whales due to a unique combination of geography and oceanographic conditions,” Dr. Nanayakkara told The Island. “We have a reliable and rich food source, and most importantly, a unique, year-round resident population.”

In a world where blue whales usually migrate thousands of kilometres between polar feeding grounds and tropical breeding areas, Sri Lanka offers something extraordinary – a non-migratory population of pygmy blue whales (Balaenoptera musculus indica) that stay around the island throughout the year. Instead of travelling to Antarctica, these giants simply shift their feeding grounds around the island, moving between the south and east coasts with the monsoons.

The secret lies beneath the surface. Seasonal monsoonal currents trigger upwelling of cold, nutrient-rich water, which fuels massive blooms of phytoplankton. This, in turn, supports dense swarms of Sergestidae shrimps – tiny creatures that form the primary diet of Sri Lanka’s blue whales.

“Blue whales require dense aggregations of these shrimps to meet their massive energy needs,” Dr. Nanayakkara explained. “And the waters around Dondra Head and Trincomalee provide exactly that.”

Adding to this natural advantage is Sri Lanka’s narrow continental shelf. The seabed drops sharply into deep oceanic canyons just a few kilometres from the shore. This allows whales to feed in deep waters while remaining close enough to land to be observed from places like Mirissa and Trincomalee – a rare phenomenon anywhere in the world.

Dr. Nanayakkara’s journey into marine research began not in a laboratory, but in front of a television screen. As a child, he was captivated by the documentary Whales Weep Not by James R. Donaldson III – the first visual documentation of sperm and blue whales in Sri Lankan waters.

“That documentary planted the seed,” he recalled. “But what truly set my path was my first encounter with a sperm whale off Trincomalee. Seeing that animal surface just metres away was humbling. It made me realise that despite decades of conflict on land, Sri Lanka harbours globally significant marine treasures.”

Since then, his work has focused on cetaceans – from blue whales and sperm whales to tropical killer whales and elusive beaked whales. What continues to inspire him is both the scientific mystery and the human connection.

“These blue whales do not follow typical migration patterns. Their life cycles, communication and adaptability are still not fully understood,” he said. “And at the same time, seeing the awe in people’s eyes during whale watching trips reminds me why this work matters.”

Whale watching has become one of Sri Lanka’s fastest-growing tourism industries. On the south coast alone, thousands of tourists head out to sea every year in search of a glimpse of the giants. But Dr. Nanayakkara warned that without strict regulation, this boom could become a curse.

“We already have good guidelines – vessels must stay at least 100 metres away and maintain slow speeds,” he noted. “The problem is enforcement.”

Speaking to The Island, he stressed that Sri Lanka stands at a critical crossroads. “We can either become a global model for responsible ocean stewardship, or we can allow short-term economic interests to erode one of the most extraordinary marine ecosystems on the planet. The choice we make today will determine whether these giants continue to swim in our waters tomorrow.”

Beyond tourism, a far more dangerous threat looms over Sri Lanka’s whales – commercial shipping traffic. The main east-west shipping lanes pass directly through key blue whale habitats off the southern coast.

“The science is very clear,” Dr. Nanayakkara told The Island. “If we move the shipping lanes just 15 nautical miles south, we can reduce the risk of collisions by up to 95 percent.”

Such a move, however, requires political will and international cooperation through bodies like the International Maritime Organization and the International Whaling Commission.

“Ships travelling faster than 14 knots are far more likely to cause fatal injuries,” he added. “Reducing speeds to 10 knots in high-risk areas can cut fatal strikes by up to 90 percent. This is not guesswork – it is solid science.”

To most people, whales are simply majestic animals. But in ecological terms, they are far more than that – they are engineers of the ocean system itself.

Through a process known as the “whale pump”, whales bring nutrients from deep waters to the surface through their faeces, fertilising phytoplankton. These microscopic plants absorb vast amounts of carbon dioxide, making whales indirect allies in the fight against climate change.

“When whales die and sink, they take all that carbon with them to the deep sea,” Dr. Nanayakkara said. “They literally lock carbon away for centuries.”

Dr. Ranil Nanayakkara

Even in death, whales create life. “Whale falls” – carcasses on the ocean floor – support unique deep-sea communities for decades.

“Protecting whales is not just about saving a species,” he said. “It is about protecting the ocean’s ability to function as a life-support system for the planet.”

For Dr. Nanayakkara, whales are not abstract data points – they are individuals with personalities and histories.

One of his most memorable encounters was with a female sperm whale nicknamed “Jaw”, missing part of her lower jaw.

“She surfaced right beside our boat, her massive eye level with mine,” he recalled. “In that moment, the line between observer and observed blurred. It was a reminder that these are sentient beings, not just research subjects.”

Another was with a tropical killer whale matriarch called “Notch”, who surfaced with her calf after a hunt.

“It felt like she was showing her offspring to us,” he said softly. “There was pride in her movement. It was extraordinary.”

Looking ahead, Dr. Nanayakkara envisions Sri Lanka as a global leader in a sustainable blue economy – where conservation and development go hand in hand.

“The ultimate goal is shared stewardship,” he told The Island. “When fishermen see healthy reefs as future income, and tour operators see protected whales as their greatest asset, conservation becomes everyone’s business.”

In the end, Sri Lanka’s greatest natural inheritance may not be its forests or mountains, but the silent giants gliding through its surrounding seas.

“Our ocean health is our greatest asset,” Dr. Nanayakkara said in conclusion. “If we protect it wisely, these whales will not just survive – they will define Sri Lanka’s place in the world.”

By Ifham Nizam

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