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Oranee Jansz

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by Rajiva Wijesinha

Oranee Jansz died last month after a brave battle with cancer, one day after her 77th birthday. I knew her for just less than half her life, having first met her when I joined the University of Sri Jayewardenepura in 1992.

I had moved there mainly to look after the English courses at Affiliated University Colleges, the brainchild of Arjuna Aluwihare. But of course USJP wanted to make greater use of me, both to restructure its English courses and build up a Department, and also to revitalize teaching of English to all students through the English Language Teaching Unit.

This latter request did not go down well with the host of long serving ladies who ran the ELTU at the time, and amongst the most opposed to the intrusion of an outsider was Oranee. But fortunately, before I took any steps, I engaged in a thorough survey of the customers as it were of the ELTU, the heads of the different Faculties and Departments whose students were supposed to learn English through the ELTU.

I found almost total despair as to what they saw as the incapacity to enthuse or teach well of the different ladies, but they all thought very highly of Oranee and asked me to allocate her to their students. I realized from that that she was an exceptional person and I treated her with great respect, to which in time she responded positively. I believe we bonded when we walked up one day from the shed which housed the ELTU to the main gate of the university, and she asked me whether I believed the assurances her colleagues had given me that their programme was going well. I think she was relieved when I told her I knew there were problems.

Prof Palihawadana, a thorough gentleman as that other great gentleman J B Dissanayake described him, was acting as Vice-Chancellor at the time given the kerfuffle about the appointment of the university Librarian, Mr Dorakumbura, as Vice-Chancellor. Palihawadana was a shrewd judge of character and ability and had wanted to make Oranee the ELTU head, since the lady who had been there had resigned when told that I would be asked to take charge of their programmes. But Oranee’s colleagues, who were I think nervous of her, protested, and the former head took over again.

Instead Oranee was asked to take charge of English for the medical faculty USJP had just started. This was a salutary measure for she did a great job, using the participatory techniques she had developed, and her students blossomed. In the strange world of Sri Lankan medicine, where established universities roundly condemn the new ones and claim standards are being lowered, with the new universities that achieve respectability then joining the old brigade to condemn newer ones, USJP has the distinction of being the university that soonest gained enough respect to join the charmed circle. And while this was obviously due to the excellence of its teaching staff, I believe too that the self confidence Oranee developed, along with excellent communicative confidence in English, contributed to the speed with which USJP doctors achieved parity with their peers.

Oranee selected her own team for the medical faculty, and made short shrift of one of the nastier of her peers who fell like a vulture on the Tamils we recruited after I was put in charge of English. Even Parvathi Nagasunderam, whom I had enticed from the NIE, was driven to tears by the viciousness, claiming that USJP had been free of Tamils earlier and there was no room there for terrorists. But she had been recruited to the Languages Department and decided that she would have nothing more to do with them. This was their loss at the time, though soon enough the younger staff there looked on her as mentor and inspiration, as did the products of the English Department she presided over for many years.

Less confident was a Tamil gentleman who had in fact settled in Colombo as a refugee from Tiger violence, totally unprepared for the onslaught of the Amazons. Oranee promptly took him under her wing, and he became a loved teacher for the Medical Faculty.

That was Oranee, a woman of infinite courage and kindness, and a fantastic and inspiring teacher. She developed her own course for the Medical Faculty but deigned to make use of some of the materials I had prepared, which fortunately the other ladies teaching other students did not resist, not least because I took on the book for the AUCs that the ELTU head had prepared. This book, ‘People’ was actually quite good and, though I had to do some editing, this was much less than was needed for the second book. As to that I was delighted when, after I had revised it thoroughly, Prof Chitra Wickramasuriya of Colombo who had been Consultant to the AUC programmes before I took over remarked enthusiastically that ‘Objects’ had been transformed.

My own productions were a set of Student Workbooks which I later divided into two texts, ‘A Handbook of English Grammar’ and a reader called ‘Read, Think and Discuss’. This latter was in collaboration with Oranee for by then she and I were working together as Coordinators of the pre-University General English Language Teaching programme, the GELT which we rechristened a Training programme.

I had got involved because, on coming back to Sri Lanka in 1993 from my stay at the Rockefeller Centre in Bellagio, I met Prof A J Gunawardena on the plane and he said that they had not been able to find anyone satisfactory to take over the GELT. He knew I was acquainted with the programme, for while at the British Council I had been commissioned by the Canadians to produce readers for the course. A J suggested I call Arjuna Aluwihare and offer my services.

I did so, for it fitted in well with the AUC work, but Arjuna told me he had asked Oranee to take it over. I suggested that I could work with her, which pleased him for I think he had been wary about what the traditionalists in the ELTU would have said about Oranee, whose original degree had been in Chemistry, though she had of course qualified since in ELT through the Colombo University Master’s programme. This was a professional course unlike the one year apology for a course that Kelaniya offered at the time (since, I believe, upgraded to a reasonable one).

Oranee was not I think pleased at my involvement for she had looked forward to doing her own thing, but she soon found that I had no intention of restricting her. I was delighted at the many ideas she had for developing initiative and thinking skills, well aware then as others in her field were not of the importance of what are now described as Soft Skills. She was a great believer in group work, in setting exercises to get students to develop and defend their own ideas, and then setting guidelines for developing a productive consensus.

We got on superbly in the little office allocated to us at the UGC, along with the staff who had started the programme way back in the late eighties, Mr Saparamadu, Lilani Samaranayake, the indefatigable typist Padma, and the stolid office aide Joseph. Oranee kindly took charge of the office work, including the checking and signing of innumerable vouchers, while I travelled to monitor the centres, making it to almost all of them including Mannar Island and Tirukkovil, closing those which had few students and lazy teachers, encouraging the many who did excellent work.

I tried to get Oranee to visit the centres, but she was a good family woman and did not like to leave her husband and children. But she was wonderful at the training sessions for staff we held regularly in the auditorium, trying to ensure that traditional talk was abandoned and group work with unobtrusive but clear guidance was done. And Oranee also developed a system of getting the centres to Colombo, or rather those who came to the finals of the competition we established for dramatization of the projects we insisted all students engage in. These proved wildly successful, and the enthusiasm of the students, to look into a local problem and propound solutions for problems, was a joy to see.

When we started work Oranee was not enthusiastic about my effort to ensure accuracy, for she was then in thrall to the theories of a man called Krashen who pushed fluency and claimed insistence on accuracy inhibited that. But before long she granted that errors would get entrenched unless corrected, and became even more enthusiastic than I was about accuracy. She became a great proponent of the Grammar Handbook, while I bowed to her wonderful imagination and gave her free rein to introduce innovative exercises in the companion reader.

These were much loved by students but of course no other university wanted to use them, since they all made much of what they termed the production of materials for which of course they were paid (neither Oranee nor I took any money for what we produced). Later, when I was moving away from the university system, and realized that no one else would ensure the books were kept in print, I accepted the offer of Cambridge University Press in India to publish the two texts under their Foundation Books imprint.

Oranee was pleased that I attributed sole authorship of ‘Explorations’, as CUP entitled ‘Read, Think and Discuss’, to her, and delighted that she received royalties for the book, which had not of course happened in Sri Lanka. Indeed CUP had the books prescribed by some Indian universities, so we did well out of them, though in Sri Lanka endemic jealousy makes it impossible for students at other universities to benefit thus.

Indeed this came home to me when a member of the current UGC asked me about the GELT materials we had used, since he had been put in charge of reviving the GELT course and thought there was no need to reinvent the wheel. I sent him details, but since then I gather that the traditionalists have stepped in, and I suspect the new effort at a GELT will be as disastrous as the GELT became at the turn of the century when the UGC decided to decentralize it. Within a couple of years of that decision the UGC closed the programme on the grounds that very few students attended, which was indeed the case in urban areas run by the old universities but of course by then there was little concern about the rural students who had been the main beneficiaries. Incidentally the bonding we had developed had stood the students in good stead during the rag but that confidence was no more after GELT was abolished.

Oranee by then had enough to do for she had finally been appointed to head the ELTU at USJP. Meanwhile I had used her, as well as Paru, for the training I embarked on when I took on responsibility for the reintroduction of English medium in government schools at the end of 2001. Sadly Ranil Wickremesinghe forbade the Minister renewing my contract to coordinate this in the middle of 2002, and the programme began to collapse, as indeed Ranil’s brother told me in urging me to persuade the Prime Minister to take remedial action (which did not happen though I am not sure whether his animosity to English medium or to me was the greater reason for this stubbornness).

Fortunately Chandrika revived the programme, and by then Oranee was retired from USJP so I could get her to work at the Ministry, where she headed the lovely team I set up in 2004 and 2005. Once again I was fascinated by how much she inspired the staff I had taken on from Sabaragamuwa.

I saw less of Oranee later, after I entered the world of public affairs, but we kept in touch and when I heard she had cancer I made it a point to see her regularly. That had to cease when COVID struck, but I kept in touch on the telephone, and resumed my visits over the last couple of months. And whereas towards the end of last year she seemed to be weakening, she was much more feisty in the last few months, and was a great pleasure to talk to. As usual she did not mince her words and, having been enthusiastic last year about GELT being revived, she too thought this year that the initiative had fallen prey to the incoherence that bedevils our system, and lots of people will make lots of money reinventing wheels and producing second rate materials.

But we talked about much more, mutual friends, students whom she had nurtured, politics, fellow academics about whom she had entertaining stories. And her zest for life was exemplified too when she insisted on seeing my dog, who was generally with me for I usually saw her when travelling to my cottage. His name is Toby, but she insisted that he had to have a surname that matched his distinguished appearance, and designated him Toby Parker Bowles.

That too, that zany zest for life, along with a deep affection for all those weaker than herself, a forceful commitment to social justice, an indefatigable appetite for action, and a vivid imagination, contribute to the memory of a wonderful colleague and a dear friend.



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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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