Features
THE HISTORY OF COLOMBO
By AN OCTOGENERIAN
A few years ago there was a series of articles in which the residents of Colombo were referred to as ‘Colombians.’ This inspired this writer to trace the history of Colombo and the derivation of its name.
It is reasonable to assume that the history of this city commenced from as early as the eighth century when traders from such diverse and distant countries as Arabia, China and Rome sailed into the harbor to barter their products in exchange for spices, specially cinnamon, for which our island –known to them as ‘Serendib’ had gained a world wide reputation.
Much later in 1344 the renowned Moroccan traveler Ibin Batuta had visited the island and referred to Colombo as Kalanbu. However from that year onward there have been conflicting interpretations of the manner by which ‘Colombo’ had got its name.
Firstly in 1505 when the Portuguese fleet had been blown by adverse winds and had drifted into the harbor they named the adjoining city as Colombo. This name had been derived from the ancient Sinhala term ‘Kolon Thota,’ which meant the port on the river Kelani. The second interpretation is that the name of the city had been derived from the Sinhala term ‘Kola Amba Thota’ which meant the harbor near which grew mango- (‘Amba’) trees which had plenty of leaves – (‘Kola’). A similar observation had been made by Robert Knox in his book titled ‘ A Historical Relation of Ceylon’ which was published in 1681.
Most readers would be aware that Robert Knox was no stranger to this island, having been held as a captive for 20 years by the king of the Kandyan Kingdom – Rajasinghe II who ruled from 1629 – 1687. Yet another interpretation is associated with the renowned explorer and navigator, Christopher Colombus whose name in Italian was Christoforo Colombo. Since he was married to a Portuguese and had lived in Lisbon for several years, his Portuguese connection was the most likely reason for this city to be named in his honor.
The Portuguese after having arrived in Colombo sent a delegation to meet King Vira Parakramabahu VIII (1484 to 1518 ) who reigned over the Kingdom of Kotte which during that period included the city of Colombo were cordially received in audience with the King. The Portuguese who were determined to consolidate their position in Colombo took the opportunity to obtain the permission of King Vira Parakramabahu to build a fort in Colombo.
Their first fort was constructed in 1518 and named ‘Santa Barbara.’ This was abandoned in 1524 and a new fort built on the same site in 1554. Archaeologists have identified this site as having been located between the present Colombo harbor and the Beira lake.
The history of Colombo continues by referring to the churches they built. The first of the many Roman Catholic churches built by the Portuguese was named ‘Nossa Senhora Milagres’ which meant Our Lady of Miracles. It is where the present Anglican church of St Paul’s is located in Milagiriya. The name Milagiriya having been derived from the Sinhalised form of the Portuguese word ‘milagre’ which meant miracle.
Along Ginthupitiya street there is another building of historical significance. This is the 19th century built Sri Siva Subramania Swamy Kovil dedicated to Lord Muruga also referred to as the God of Kataragama, which can be seen even today. It is also recorded that many years ago Ginthupitiya, was named as ‘ San Thome Pitiya,’ because many Christians believed that St Thomas the Apostle had visited this site and preached to the people. However it must be emphasized that there is no authenticated evidence that St Thomas had ever visited Ginthupitiya/San Thome Pitiya.
The Dutch who arrived in the island in 1640 made Colombo their stronghold, referring to it as their Operational Centre. Not being Roman Catholics but Protestants they did not want to be outdone by the Portuguese who had, as mentioned earlier, built many churches. For this reason they decided to build their own churches in accordance with their faith.
The best known Dutch church is the Wolvendaal Church, which they referred to as Wolvendaalse Kirk, which even today is a place of worship for the Non- Roman Catholics. Another edifice built by them was the Dutch Hospital which is considered to be one of the oldest buildings in Colombo Fort. It has now been converted to be an imposing and impressionable shopping arcade and a popular dining rendezvous.
The British who defeated the Dutch made Colombo their main city but went further by establishing it as the island’s capital. At the risk of striking a sad and somber note, it needs to be stated that in 1866 the British donated to Colombo the 48- acre burial grounds referred to as Kanatte. Here among the many thousands who rest in peaceful slumber is the prominent science- fiction writer Sir Arthur C. Clarke.
There is also what may be referred to as the second grave of Sri Lanka’s valiant martyr Henry Pedris who was executed for treason by the British on July 7, 1915. In keeping with British military tradition his body was buried in an unmarked location in a secret plot far from Colombo. But in 1987 his relatives unearthed his body and buried it in Kanatte.
Colombo has another cemetery which is located along Jawatte road in what is referred today as Colombo 05. Unknown to many it is the largest Commonwealth War cemetery in the island. On July 8, 2005 it was declared as an archaeological site. Furthermore it is interesting to note that ‘Ja’ which are the first two letters of ‘Jawatte’ refers to the Malay community, who had purchased the block of land for use as a cemetery in 1941
Readers will be surprised to know that in Colombo the British had built many well known edifices which today are considered to be landmarks such as the Galle Face Hotel, Cargills Building. Also built in British times were the University of Colombo Building which was originally built for Royal College, the Joseph Frazer Nursing Home, the old House of Parliament, Temple Trees, the President’s House, the former General Post Office, Lloyds Building, the National Museum and the Old Town Hall located in Pettah which is presently a Museum and contains a fascinating collection of memorabilia such as street signs, steam rollers and printing presses.
Mention must also be made of another British contribution to the city of Colombo. This was the tramcar network, which operated on two main routes, Fort – Grandpass and Fort – Borella . This network was discontinued 1953.
To continue the history of Colombo it is now relevant to refer to World War II ( September 1, 1939 – September 2, 1945 ) and in particular to the involvement of Japan. It was during this period that under Emperor Hirohito the Japanese carried out a campaign of ruthless expansionism and militarization in the countries of South East Asia. It commenced with the unprovoked destruction of the American fleet berthed in Pearl harbor in Hawaii on December 7, 1941.
From then onwards they systematically ravaged every country in South Asia. Finally when on February 15, 1942 Singapore was captured, it was inevitable that their next conquest would be Ceylon. During this period Ceylon – as our island was referred to, was a British colony and the Allied forces comprising British, Canadian and troops from the independent dominions of the British Commonwealth were stationed in many parts of the island but were concentrated in Colombo and Trincomalee. But since this article is about the history of Colombo, a description of the Japanese attack on Trincomalee will regrettably have to be left for another day.
It was the intention of the Japanese forces to have complete control of the Indian ocean thereby disrupting the British sea lanes with India and the Middle East and also to be within striking distance of the oil fields in the Persian Gulf over which Britain had a virtual monopoly. It was in anticipation of a Japanese attack which if successful would have been irreparably detrimental to the British that the Allied forces stationed in Colombo were compelled to take numerous precautionary measures which to the citizens of Colombo were more often than not a source of irritation and impatience.
Every evening by sunset all street lights were switched off. The time was advanced by one hour to enable office workers to return to their homes before darkness covered the city. The movement of vehicles was prohibited, unless the owner/driver had a special pass in which case the head lamps had to be covered leaving just enough space for a glimmer of light to appear to prevent the driver from taking the wrong turn.
There were also what has been referred to as ‘Black Out’ nights. Residents living within the city were compelled to drape black curtains or fix sheets of cardboard over every window in their houses to prevent any light from appearing from outside. Colombo was in complete darkness, thereby making it impossible for Japanese bombers to identify any important landmarks. Sirens were installed to warn the people whenever there was a possibility of an air raid and on hearing the eerie screech of the siren they had to take refuge in the specially built underground air-raid shelters which were located at key points within the city .
A Mobile Air-Raid Precaution (ARP) team was formed mainly comprising of Rover Scouts which was headed by the Scout Commissioner. Their duty was to ensure that the public adhered to the regulations which had been enforced to safeguard them in case of a Japanese attack. Co-operative Stores were established throughout the city and a coupon system introduced for the purchase of essential groceries. Nevertheless there was a scarcity of rice for which a substitute referred to as ‘bajiri’ was issued. Even though many quite justifiably complained that it tasted like straw, there was no alternative.
Early in the morning on Sunday April 5, 1942, the worst fears of the Allied forces materialized. The Japanese armada led by Vice Admiral Mitsuo Fuchida who was responsible for the attack on the American fleet in Pearl harbor bombed Colombo devastating strategic installations in the city and harbor. The Japanese attack was so relentless that one pilot carefully avoiding the balloon barrages connected to the ground by steel wires which swayed high in the air over the harbor, demonstrated his devotion to his country and his Emperor by committing the ultimate sacrifice of ‘Harakiri’ by diving bombing into the funnel of a British destroyer berthed in the harbor bursting its fuel tanks and sinking the ship.
It is now relevant to quote the statement issued by the war-time Prime Minister of Britain, Sir Winston Churchill: “The most dangerous moment of the war and the one which caused me the greatest alarm was when the Japanese fleet was heading for Ceylon and the naval base there,” this being a reference to the Colombo harbor.
The war-time history of Colombo needs to be continued with the mention of Flight Lieutenant Leonard Birchall who was acclaimed as the ‘Savior of Ceylon.’ because while piloting his Catalina sea plane he was alarmed to see the Japanese fleet just 360 miles off the coast of the island and heading for the Colombo harbor. He was barely able to send a message of warning to the Allied forces stationed in Colombo when his plane was shot down and he was captured by the Japanese crew and taken to a Prisoner of War camp in Japan, to be questioned under torture as to whether he did send a message to the Allied forces stationed in Colombo.
It was his fortuitous warning which enabled the Allied forces in Colombo to be prepared for the impending Japanese attack. During the raid many residents of Colombo were in such a state of frenzied panic that they fled seeking refuge in homes far away from Colombo. Those who remained behind were able to watch the unforgettable sight in the sky above of what had been referred to as ‘dog fights’ between the RAF (Royal Air Force) Hawker Hurricanes and the Japanese Mitsubishi Zero fighter planes. When the raid was over burning wrecks of Japanese aircraft were found in places outside Colombo. However according to an unconfirmed report one wreck was found on Galle Face Green and another in Maradana.
Finally the writer is pleased to mention that one of the most unforgettable contributions made by the British to Ceylon was the game of cricket. Even though it is not rated as the national sport it is certainly the most popular, making us a cricket crazy country, perhaps second only to India.
Features
Retirement age for judges: Innovation and policy
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.
Features
Ranked 134th in Happiness: Rethinking Sri Lanka’s development through happiness, youth wellbeing and resilience
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
Features
Hidden diversity in Sri Lanka’s killifish revealed: New study reshapes understanding of island’s freshwater biodiversity
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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