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Old sunken boats

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by Somasiri Devendra

(continued from last week)

Underwater archaeology also took us inland into rivers. I well remember the first expedition we undertook, which was a modest one carried out by a band of enthusiasts. A newspaper report filed by a local correspondent was headlined ‘Gemmers unearth ancient canoe’. It said that `Gem-diggers in the river Kuru had come up with a Teppama or a boat, about 300 years old, at Gamage-Tota at Teppanawa, in the Ratnapura electorate, while searching for gem veins, deep down in the river.’ We hastily boarded a pick-up truck with our gear and went in search of the place.

It was off Kuruwita and by judicious questioning we were able to find the site. What we found was interesting. The gem-miners were there. They had been digging their pit on the bed of Kuru Ganga, the water level being low during this dry season. About 15 feet below the riverbed, they had come across this ‘log’. Such logs were prized as very good firewood. This was about thirty feet long but they could not see it properly in the pit on account of the muddy water. Because of its size, they had obtained a jack to lever it out of the water, but they failed. Then they lowered a large saw and cut it in two, and that is when they found out that it was a log boat.

As was usual in such instances, the event was a three-day wonder and everybody around had come to see it. Among them was the village schoolmaster who had got the local newspaper correspondent to report it. He had made a linguistic connection between the village name (Teppanawa) and a type of watercraft (teppama) without knowing that the latter was no log boat. The gem-miners had wisely kept the two pieces in the water, and that is where we came in.

The river was sluggish, with a sandbank having formed on one side and the water flowing along a channel on the other bank. We were thus able, with minimum effort, to float the two pieces onto the sandbank and set about photographing, measuring and examining it. It was a log boat all right, with no signs of having had an outrigger. The wood was spongy, but surprisingly the heartwood had not separated itself from the sapwood on one end, as it generally does. It was a pity they had to saw it in two, but even this had its advantages. The clean crosscut gave us a perfect cross-section of the boat and showed that the hollowing-out process had not been done with sophisticated instruments. Perhaps this might help us to learn from it.

The village-folk were very helpful to us, working alongside us and bringing tea in a kettle. My daughter, an artist, soon got into a sarong from the closest house and sketched the two pieces in detail, such drawings being more valuable than photographs. We made our report to the Department of National Museums, which retrieved the two pieces. Now conserved, they are being exhibited at the museum in Ratnapura.

Paruva craft

Another day, a group of us went in search of the vanished paruva craft to the Kelani Ganga. How big a part these craft had played in our history and culture, and how soon they have been forgotten! There was no genuine one to be seen, but we did not return empty-handed. Our first stop was at a timber shed where, the owner said, he had been commissioned to build one decades ago, but the man had run short of money. He showed us the two log-boat chine strakes (iri kaduwa), which he had hollowed and were still stored in his loft, along with the broad planks he had bought for the craft.

Most interestingly he showed us the metal (copper) fittings of a sunken paruva they had tried to salvage, but failed. It was still there, he said, half out and half in the water. We managed to trace it and it was a really magnificent wreck, lying there like a stranded whale. It was massive, well constructed of good wood but no one could have pulled it out of the river. We went through the familiar routine of photographing, measuring and interviewing people, while small boys played around us, taking us as a good excuse not to do their homework! We saw the last, but poor, remaining craft in the shape of the waeli paruva used for sand mining. But most importantly, we were told how to get to the house of “Bomba Sira”, the last builder of these craft in that area.

With some difficulty we found him in his house. Too old to work maybe, but he was not too old to talk. It took some time to get his mind to run on the same groove as ours. He had built both the madel paruva of the coast and the very different paruva of the rivers. The river paruva, according to him was 50 feet long. The reason for keeping to this length was not clear to me till I found the reason years later.

Apparently in the 19th. century, there were toll gates along the river at which boatmen had to pay customs duty depending on the size of the craft. The lowest rate for a paruva was payable only if it was less than fifty feet long, and therefore the size became standard. Sira was able, with no reference to any notes, to give us the exact quantities of different materials needed to build one, such as the number of coils of rope, cadjans, bamboos and nails, and the type of wood used. He introduced us to the jargon of the boat-builder, giving us the names of every part of a paruva. Once again I was thankful that I had tapped a reservoir of oral history before it was lost forever. My mind went back to Hiriwadunna and the idea of the flow of water from one tank to another in a cascade. I felt privileged to have had this good fortune.

More sobering was my encounter with the younger generation at another boat site. I was in the Archaeological Department, when word came that a “big ship, with walls and rooms” had been found at Attanagalu Oya. It was apparent to me that it could be no more than a iri kaduwa of a paruva, with its vertical strengtheners carved. The rest of the description was the usual mixture of ignorance and fantasy.

When I visited the site, it wore a carnival atmosphere, with people from everywhere clambering to see this “ship”. People were walking all over the remains of the craft with shoes on, damaging whatever had been saved by time. The sheer irresponsibility and disrespect for one’s heritage was irritating, grating on one’s sensitivity. We shooed all of them away and got down to the business of measuring, sketching and photographing. It was really large, being 60 feet long. I reckoned it would have been a near 100 feet long in its day.

It was subsequently raised by crane, upon a purpose-built cradle, and transferred to the Colombo Museum where, unfortunately, it is being allowed to rot away. It was radio-carbon dated to the 9th century AD. More than a thousand years ago, such craft would have been plying the then-gushing rivers of the Maya Rata, bringing cargoes of forest produce from the thick rain forests to the river mouth ports, particularly along the Kelani Ganga where communities of foreign traders resided.

It is to this century that the first Arabic inscription found in this country can also be attributed. It speaks of the death of an Islamic cleric who had been brought down to teach the correct tenets of his religion to the Arab traders in Colombo.

Further up the river, at Kelanimulla ferry in 1952, another very large log boat, which had an outrigger attached, was found and placed in the Colombo Museum. It too had been dated to the second century BC, about the time of King Kelani Tissa. Maya Rata, long written-off as a forested and uninhabited land, is providing us with new clues and waiting for its history to be rewritten.

Maritime history

Did the people of Sri Lanka venture out to sea and, if so, in what type of ship? It was this question that drove me to the study of boats, ships and maritime history. I have found the answers to my satisfaction. Perhaps the most satisfying was the discovery of the yathra dhoni and its study.

I discovered that Sri Lanka had absorbed the maritime traditions from all over the Indian Ocean, and maybe even from beyond. I found that even into almost the middle of the twentieth century, we have had functioning sailing ships of several types. In the south was the yathra dhoni with its characteristic outrigger. In the east, in Muttur, I found the Arab-Indian battal, large, undecked, sailing craft that brought the harvest from the Mahaveli delta to Trincomalee harbour. It was characterized by the single large Arab-Indian lateen sail hoisted from a pulley atop the for’ ard raking mast.

I would see them sailing daily past the balcony of my house and did not ever think of them disappearing so soon. But a scant 10 years later, there was none to be seen and there were many who did not even remember them. I was left with only one memento, a photograph taken by a fellow naval officer.

However, the ships of the north, the thoni of Jaffna, were to prove more rewarding. Though the last of its kind, the Annapurani, had been built and sailed to England around 1930 (there is a photograph of her in the Suez canal), there is none remaining to be seen. James Hornell, world authority on traditional watercraft, had seen and photographed them, when he had been working for the Fisheries Department in Sri Lanka in the 1930s. He had also studied the customs and traditions connected with their construction.

The thoni was a strange craft, in appearance very much like a 19th century English man-of-war. False gun-ports were painted along the sides. Masts were fitted with square sails and there was a towering bowsprit with a multitude of sprit sails. On board, the picture was very different and the scene was much the same as on a yathra dhoni of Dodanduwa, with cargo hatches with split bamboo thatching covering most of the deck space, and cooking facilities and water casks in the after deck.

Up in the, bows again was quite different, dominated by the bowsprit and with the stem coiling backward in the spiral called the surul. On this was painted the three horizontal white stripes that one sees worn by Hindu Saivites on their foreheads, marked in ash. Below the surul was a little shrine room, containing the image of the deity sacred to the ship’s owner, a little stone quern or grinding stone for smashing of coconuts as in a temple, and other paraphernalia that adorn a shrine. Unlike the ships of the Sinhala people, who offered prayers to all the gods, the thoni neither launched nor would undertake a journey without a religious service performed by a member of the crew who officiated as the poosari.

It was off Ambalangoda that we were told of a mysterious shipwreck that appeared and disappeared under the seabed from time to time. Again we were pursuing a newspaper story. We found no wreck, for it had disappeared under the sands again, but we were able to study the artifacts that had been collected (some sold to dealers) by the fishing community nearby. There was a small cannon (sold), cannon balls, a bronze deity (sold), metal cooking vessels and Chinese porcelain, grinding stones, small coconuts (some broken), astrolabe (a mediaeval European navigation instrument) much repaired, several antique hand tools, weights and quantities of cowries and other shells. The likelihood, given all the above and Hornell’s description, is that she was a Jaffna thoni coasting southward before changing course westward to the Maldives. It was a post-colonial wreck, to judge from the cannon, cannon balls and astrolabe. So here we may have the first Sri Lankan shipwreck.

The Amugoda Oruwa, Hercules, Avondster, and the Ambalangoda shipwreck are all victims of the unforgiving sea. And now, the “Mansions of the sea”.

(Concluded)

(Excerpted from Jungle Journeys in Sri Lanka edited by CG Uragoda)



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Retirement age for judges: Innovation and policy

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I. The Constitutional Context

Independence of the judiciary is, without question, an essential element of a functioning democracy. In recognition of this, ample provision is made in the highest law of our country, the Constitution, to engender an environment in which the courts are able to fulfil their public responsibility with total acceptance.

As part of this protective apparatus, judges of the Supreme Court and the Court of Appeal are assured of security of tenure by the provision that “they shall not be removed except by an order of the President made after an address of Parliament supported by a majority of the total number of members of Parliament, (including those not present), has been presented to the President for such removal on the ground of proved misbehaviour or incapacity”[Article 107(2)]. Since this assurance holds good for the entirety of tenure, it follows that the age of retirement should be defined with certainty. This is done by the Constitution itself by the provision that “the age of retirement of judges of the Supreme Court shall be 65 years and of judges of the Court of Appeal shall be 63 years”[Article 107(5)].

II. A Proposal for Reform

This provision has been in force ever since the commencement of the Constitution. Significant public interest, therefore, has been aroused by the lead story in a newspaper, Anidda of 13 March, that the government is proposing to extend the term of office of judges of the Supreme Court and the Court of Appeal by a period of two years.

This proposal, if indeed it reflects the thinking of the government, is deeply disturbing from the standpoint of policy, and gives rise to grave consequences. The courts operating at the apex of the judicial structure are called upon to do justice between citizens and also between the state and members of the public. It is an indispensable principle governing the administration of justice that not the slightest shadow of doubt should arise in the public mind regarding the absolute objectivity and impartiality with which the courts approach this task.

What is proposed, if the newspaper report is authentic, is to confer on judges of two particular courts, the Supreme Court and the Court of Appeal, a substantial benefit or advantage in the form of extension of their years of service. The question is whether the implications of this initiative are healthy for the administration of justice.

III. Governing Considerations of Policy

What is at stake is a principle intuitively identified as a pillar of justice.

Reflecting firm convictions, the legal antecedents reiterate the established position with remarkable emphasis. The classical exposition of the seminal standard is, of course, the pronouncement by Lord Hewart: “It is not merely of some importance, but is of fundamental importance that justice should not only be done, but should manifestly and undoubtedly be seen to be done”. (Rex v. Sussex Justices, ex parte McCarthy). The underlying principle is that perception is no less important than reality. The mere appearance of partiality has been held to vitiate proceedings: Dissanayake v. Kaleel. In particular, reasonableness of apprehension in the mind of the parties to litigation is critical: Ranjit Thakur v. Union of India, a reasonable likelihood of bias being necessarily fatal (Manak Lal v. Prem Chaud Singhvi).

The overriding factor is unshaken public confidence in the judiciary: State of West Bengal v. Shivananda Pathak. The decision must be “demonstrably” (Saleem Marsoof J.) fair. The Bar Association of Sri Lanka has rightly declared: “The authority of the judiciary ultimately depends on the trust reposed in it by the people, which is sustained only when justice is administered in a visibly fair manner”.

Credibility is paramount in this regard. “Justice has to be seen to be believed” (J.B. Morton). Legality of the outcome is not decisive; process is of equal consequence. Judicial decisions, then, must withstand public scrutiny, not merely legal technicality: Mark Fernando J. in the Jana Ghosha case. Conceived as continuing vitality of natural justice principles, these are integral to justice itself: Samarawickrema J. in Fernando v. Attorney General. Institutional integrity depends on eliminating even the appearance of partiality (Mandal Vikas Nigam Ltd. v. Girja Shankar Pant), and “open justice is the cornerstone of our judicial system”: (Sahara India Real Estate Corporation Ltd. v. SEBI).

IV. Practical Constraints

Apart from these compelling considerations of policy, there are practical aspects which call for serious consideration. The effect of the proposal is that, among all judges operating at different levels in the judicature of Sri Lanka, judges of the Supreme Court and the Court of Appeal only, to the exclusion of all other judges, are singled out as the beneficiaries of the proposal. An inevitable result is that High Court and District Judges and Magistrates will find their avenues of promotion seriously impeded by the unexpected lengthening of the periods of service of currently serving judges in the two apex courts. Consequently, they will be required to retire at a point of time appreciably earlier than they had anticipated to relinquish judicial office because the prospect of promotion to higher courts, entailing higher age limits for retirement, is precipitately withdrawn. Some degree of demotivation, arising from denial of legitimate expectation, is therefore to be expected.

A possible response to this obvious problem is a decision to make the two-year extension applicable to all judicial officers, rather than confining it to judges of the two highest courts. This would solve the problem of disillusionment at lower levels of the judiciary, but other issues, clearly serious in their impact, will naturally arise.

Public service structures, to be equitable and effective, must be founded on principles of non-discrimination in respect of service conditions and related matters. Arbitrary or invidious treatment is destructive of this purpose. In determining the age of retirement of judges of the Supreme Court and the Court of Appeal, some attention has been properly paid to balance and consistency. The age of retirement of a Supreme Court judge is on par with that applicable to university professors and academic staff in the higher education system. They all retire at 65 years. Members of the public service, generally, retire at 60. Medical specialists retire at 63, with the possibility of extension in special circumstances to 65. The age of retirement for High Court Judges is 61, and for Magistrates and District Judges 60. It may be noted that the policy change in 2022 aimed at specifically addressing the issue of uniformity and compatibility.

If, then, an attempt is made to carve out an ad hoc principle strictly limited to judicial officers, not admitting of a self-evident rationale, the question would inevitably arise whether this is fair by other categories of the public service and whether the latter would not entertain a justifiable sense of grievance.

This is not merely a moral or ethical issue relating to motivation and fulfillment within the public service, but it could potentially give rise to critical legal issues. It is certainly arguable that the proposed course of action represents an infringement of the postulate of equality of treatment, and non-discrimination, enshrined in Article 12(1) of the Constitution.

There would, as well, be the awkward situation that this issue, almost certain to be raised, would then have to be adjudicated upon by the Supreme Court, itself the direct and exclusive beneficiary of the impugned measure.

V. Piecemeal Amendment or an Overall Approach?

If innovation on these lines is contemplated, would it not be desirable to take up the issue as part of the new Constitution, which the government has pledged to formulate and enact, rather than as a piecemeal amendment at this moment to the existing Constitution? After all, Chapter XV, dealing with the Judiciary, contains provisions interlinked with other salient features of the Constitution, and an integrated approach would seem preferable.

VI. Conclusion

In sum, then, it is submitted that the proposed change is injurious to the institutional integrity of the judiciary and to the prestige and stature of judges, and that it should not be implemented without full consideration of all the issues involved.

By Professor G. L. Peiris
D. Phil. (Oxford), Ph. D. (Sri Lanka);
Former Minister of Justice, Constitutional Affairs and National Integration;
Quondam Visiting Fellow of the Universities of Oxford, Cambridge and London;
Former Vice-Chancellor and Emeritus Professor of Law of the University of Colombo.

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Ranked 134th in Happiness: Rethinking Sri Lanka’s development through happiness, youth wellbeing and resilience

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In recent years, Sri Lanka has experienced a succession of overlapping challenges that have tested its resilience. Cyclone Ditwah struck Sri Lanka in November last year, significantly disrupting the normal lives of its citizens. The infrastructure damage is much more serious than the tsunami. According to World Bank reports and preliminary estimates, the losses amounted to approximately US$ 4.1 billion, nearly 4 per cent of the country’s Gross Domestic Product. Before taking a break from that, the emerging crisis in the Middle East has once again raised concerns about potential economic repercussions. In particular, those already affected by disasters such as Cyclone Ditwah risk falling “from the frying pan into the fire,” facing multiple hardships simultaneously. Currently, we see fuel prices rising, four-day workweeks, a higher cost of living, increased pressure on household incomes, and a reduction in the overall standard of living for ordinary citizens. It would certainly affect people’s happiness. As human beings, we naturally aspire to live happy and fulfilling lives. At a time when the world is increasingly talking about happiness and wellbeing, the World Happiness Report provides a useful way of looking at how countries are doing. The World Happiness Report discusses global well-being and offers strategies to improve it. The report is produced annually with contributions from the University of Oxford’s Wellbeing Research Centre, Gallup, the UN Sustainable Development Solutions Network, and other stakeholders. There are many variables taken into consideration for the index, including the core measure (Cantril Ladder) and six explanatory variables (GDP per Capita ,Social Support,Healthy Life Expectancy,Freedom to Make Life Choices,Generosity,Perceptions of Corruption), with a final comparison.

According to the recently published World Happiness Report 2026, Sri Lanka ranks 134th out of 147 nations. As per the report, this is the first time that Sri Lanka has suffered such a decline. Sri Lanka currently trails behind most of its South Asian neighbours in the happiness index. The World Happiness Report 2026 attributes Sri Lanka’s low ranking (134th) to a combination of persistent economic struggles, social challenges, and modern pressures on younger generations. The 2026 report specifically noted that excessive social media use is a growing factor contributing to declining life satisfaction among young people globally, including in Sri Lanka. This calls for greater vigilance and careful reflection. These concerns should be examined alongside key observations, particularly in the context of education reforms in Sri Lanka, which must look beyond their immediate scope and engage more meaningfully with the country’s future.

In recent years, a series of events has triggered political upheaval in countries such as Nepal, characterised by widespread protests, government collapse, and the emergence of interim administration. Most reports and news outlets described this as “Gen Z protests.” First, we need to understand what Generation Z is and its key attributes. Born between 1997 and 2012, Generation Z represents the first truly “digital native” generation—raised not just with the internet, but immersed in it. Their lives revolve around digital ecosystems: TikTok sets cultural trends, Instagram fuels discovery, YouTube delivers learning, and WhatsApp sustains peer communities. This constant, feed-driven engagement shapes not only how they consume content but how they think, act, and spend. Tech-savvy and socially aware, Gen Z holds brands to a higher standard. For them, authenticity, transparency, and accountability—especially on environmental and ethical issues—aren’t marketing tools; they’re baseline expectations. We can also observe instances of them becoming unnecessarily arrogant in making quick decisions and becoming tools of some harmful anti-social ideological groups. However, we must understand that any generation should have proper education about certain aspects of the normal world, such as respecting others, listening to others, and living well. More interestingly, a global survey by the McKinsey Health Institute, covering 42,083 people across 26 countries, finds that Gen Z reports poorer mental health than older cohorts and is more likely to perceive social media as harmful.

Youth health behaviour in Sri Lanka reveals growing concerns in mental health and wellbeing. Around 18% of youth (here, school-going adolescents aged 13-17) experience depression, 22.4% feel lonely, and 11.9% struggle with sleep due to worry, with issues rising alongside digital exposure. Suicide-related risks are significant, with notable proportions reporting thoughts, plans, and attempts, particularly among females. Bullying remains a significant concern, particularly among males, with cyberbullying emerging as a notable issue. At the same time, substance use is increasing, including tobacco, smokeless tobacco, and e-cigarettes. These trends highlight the urgent need for targeted interventions to support youth mental health, resilience, and healthier behavioural outcomes in Sri Lanka. We need to create a forum in Sri Lanka to keep young people informed about this. Sri Lanka can designate a date (like April 25th) as a National Youth Empowerment Day to strengthen youth mental health and suicide prevention efforts. This should be supported by a comprehensive, multi-sectoral strategy aligned with basic global guidelines. Key priorities include school-based emotional learning, counselling services, and mental health training for teachers and parents. Strengthening data systems, reducing access to harmful means, and promoting responsible media reporting are essential. Empowering families and communities through awareness and digital tools will ensure this day becomes a meaningful national call to action.

As discussed earlier, Sri Lanka must carefully understand and respond to the challenges arising from its ongoing changes. Sri Lanka should establish an immediate task force comprising responsible stakeholders to engage in discussions on ongoing concerns. Recognising that it is not a comprehensive solution, the World Happiness Index can nevertheless act as an important indicator in guiding a paradigm shift in how we approach education and economic development. For a country seeking to reposition itself globally, Sri Lanka must adopt stronger, more effective strategies across multiple sectors. Building a resilient and prosperous future requires sound policymaking and clear strategic direction.

(The writer is a Professor in Management Studies at the Open University of Sri Lanka. You can reach Professor Abeysekera via nabey@ou.ac.lk)

by Prof. Nalin Abeysekera

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Hidden diversity in Sri Lanka’s killifish revealed: New study reshapes understanding of island’s freshwater biodiversity

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Aplocheilus parvus

A groundbreaking new study led by an international team of scientists, including Sri Lankan researcher Tharindu Ranasinghe, has uncovered striking genetic distinctions in two closely related killifish species—reshaping long-standing assumptions about freshwater biodiversity shared between Sri Lanka and India.

Published recently in Zootaxa, the research brings together leading ichthyologists such as Hiranya Sudasinghe, Madhava Meegaskumbura, Neelesh Dahanukar and Rajeev Raghavan, alongside other regional experts, highlighting a growing South Asian collaboration in biodiversity science.

For decades, scientists debated whether Aplocheilus blockii and Aplocheilus parvus were in fact the same species. But the new genetic analysis confirms they are “distinct, reciprocally monophyletic sister species,” providing long-awaited clarity to their taxonomic identity.

Speaking to The Island, Ranasinghe said the findings underscore the hidden complexity of Sri Lanka’s freshwater ecosystems.

“What appears superficially similar can be genetically very different,” he noted. “Our study shows that even widespread, common-looking species can hold deep evolutionary histories that we are only now beginning to understand.”

A tale of two fishes

The study reveals that Aplocheilus blockii is restricted to peninsular India, while Aplocheilus parvus occurs both in southern India and across Sri Lanka’s lowland wetlands.

Despite their close relationship, the two species show clear genetic separation, with a measurable “genetic gap” distinguishing them. Subtle physical differences—such as the pattern of iridescent scales—also help scientists tell them apart.

Co-author Sudasinghe, who has led several landmark studies on Sri Lankan freshwater fishes, noted that such integrative approaches combining genetics and morphology are redefining taxonomy in the region.

Echoes of ancient land bridges

The findings also shed light on the ancient biogeographic links between Sri Lanka and India.

Scientists believe that during periods of low sea levels in the past, the two landmasses were connected by the now-submerged Palk Isthmus, allowing freshwater species to move between them.

Later, rising seas severed this connection, isolating populations and driving genetic divergence.

“These fishes likely dispersed between India and Sri Lanka when the land bridge existed,” Ranasinghe said. “Subsequent isolation has resulted in the patterns of genetic structure we see today.”

Meegaskumbura emphasised that such patterns are increasingly being observed across multiple freshwater fish groups in Sri Lanka, pointing to a shared evolutionary history shaped by geography and climate.

A deeper genetic divide

One of the study’s most striking findings is that Sri Lankan populations of A. parvus are genetically distinct from those in India, with no shared haplotypes between the two regions.

Dahanukar explained that this level of differentiation, despite relatively recent geological separation, highlights how quickly freshwater species can diverge when isolated.

Meanwhile, Raghavan pointed out that these findings reinforce the importance of conserving habitats across both countries, as each region harbours unique genetic diversity.

Implications for conservation

The study carries important implications for conservation, particularly in a country like Sri Lanka where freshwater ecosystems are under increasing pressure from development, pollution, and climate change.

Ranasinghe stressed that understanding genetic diversity is key to protecting species effectively.

“If we treat all populations as identical, we risk losing unique genetic lineages,” he warned. “Conservation planning must recognise these hidden differences.”

Sri Lanka is already recognised as a global biodiversity hotspot, but studies like this suggest that its biological richness may be even greater than previously thought.

A broader scientific shift

The research also contributes to a growing body of work by scientists such as Sudasinghe and Meegaskumbura, challenging traditional assumptions about species distributions in the region.

Earlier studies often assumed that many freshwater fish species were shared uniformly between India and Sri Lanka. However, modern genetic tools are revealing a far more complex picture—one shaped by ancient geography, climatic shifts, and evolutionary processes.

“We are moving from a simplistic view of biodiversity to a much more nuanced understanding,” Ranasinghe said. “And Sri Lanka is proving to be a fascinating natural laboratory for this kind of research.”

Looking ahead

The researchers emphasise that much remains to be explored, with several freshwater fish groups in Sri Lanka still poorly understood at the genetic level.

For Sri Lanka, the message is clear: beneath its rivers, tanks, and wetlands lies a largely untapped reservoir of evolutionary history.

As Ranasinghe puts it:

“Every stream could hold a story of millions of years in the making. We are only just beginning to read them.”

By Ifham Nizam

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