Connect with us

Features

Fifty Years of Friendship and Solidarity

Published

on

Sri Lanka–Bangladesh 50th Anniversary

Speech delivered recently by
Professor Sudharshan Seneviratne
High Commissioner for Sri Lanka in Bangladesh
Ambassador Extraordinary and Plenipotentiary to the Kingdom of Bhutan

The High Commission of Sri Lanka in Bangladesh together with its fraternal partner, the High Commission of Bangladesh in Sri Lanka are pleased to share with our well-wishers this landmark event celebrating 50 years of friendship and solidarity. As an initiative taken by our two Missions, the anniversary will be celebrated throughout this year on various topical areas ranging from investments to culture. It is expected to be a common platform reaching out to our valued communities.

Relationships between our lands go beyond 50 years of its modern-day connectivity. Vangadesha and Tambapanni are historic lands proud of their ancestry and culture dating back to C. 600 BCE. That matrix shaped and cemented our commonalities, culture and above all our shared destinies. It was nurtured within the oceanicscape of the Indian Ocean and the Bay of Bengal. Pre-modern connectivity is seen through the lens of trade exchange, religion, dance, poetry as our shared heritage. Eventually, we overcame colonial occupation culminating in the rise of independent sovereign and democratic states known as Bangladesh and Sri Lanka.

The sustainable relationship between two lands and their cultures cannot be gauged by abstract situations and simple statistics of the political-economy. It is something far more sensitive, durable and tangible. It is best seen as a symbiotic relationship reaching out to each other with respect. Our destinies, our past, present and future are essentially interdependent. In my short presentation unfolding our relationship, I will speak of past experience, present interaction and the way forward towards a shared future.

Past experience

Legend has it that around C. 6th Century BCE, a prince from Vangadesha arrived in Tambapanni and married a princess from that island. The legend is found in the Pali texts in Sri Lanka datable to c. 4th Cent. CE. The chronicled legend is a reflection of preexisting early oceanic connectivity on trade and cultural exchange between the two ends of the Bay of Bengal. The archaeological record provides far more tangible evidence from ancient material culture. It sheds light on a trading vortex based on luxury commodities such as, pearls, chank (conch shell), ivory, precious stone, metallic resources, sandalwood being some of the traded items mediated through merchants and mariners of our lands.

Intense convergence of trade in the Bay of Bengal witnessed economic and religio-cultural interactions during the Middle Historic period reaching higher levels. Buddhism was a primary medium that carried the message of culture and civilizations to both lands. It endowed a rich doctrinal knowledge of Theravada and Mahayana traditions. The historic material culture and the living traditions of Buddhism in Sri Lanka and Bangladesh reflect the pristine sentiments embedded in the cultures of these lands. Medieval texts in Sri Lanka record movements of Buddhist monks and merchants traversing the waters of the Bay of Bengal as goodwill envoys exchanging ideas, culture and commodities.

A deeper history between our two lands unfolded itself in the Colonial period. They are represented in aesthetically pleasing folk dance, folklore, poems, songs and village games embedded as an inherent part of the Sri Lankan culture. For instance, the dances representing Olinda songs and Bangalu walalu or bangles of Bengal are good examples.

Late Colonial and the rise of nationalism in the subcontinent witnessed a closer affinity with the culture of Bengal through the medium of art forms, songs, dance and education. Gurudev Rabinranath Tagore was the catalyst that forged a renaissance culture carving a permanent conduit between our lands. Rabindra sangeet and dance forms inspired the poetic expression of Sri Lankan artists such as Sunil Shanta and a host of others nurturing a permanent niche for itself within the Sri Lankan ethos.

Present Interaction

The contemporary period witnessed Sri Lanka and Bangladesh rising from multiple adverse situations. Both countries have a chequered history emerging from colonial oppression, natural disasters and terrorism. Our people rose again from ashes and destruction with greater resilience.

Today our two countries maintain a healthy relationship with each sharing common goals “for our people and the region”. We celebrate shared sentiments of mutuality over economic and cultural aspirations. Our two leaders hold each other with trust and consider each country in the highest esteem as kin-countries and as most trusted friends. We stand together at good times and take equal care of each other and ungrudgingly extending a magnanimous hand of solidarity and assistance at times of adversity.

Today we are at the threshold of entering a new era of cooperation and solidarity. The philosophy driving our engagement in Bangladesh is a two way process establishing a healthy working relationship. This philosophy is based on a symbiotic relationship of interdependence and mutual respect for each other and not one based on patron – client relationship. This synergy it fact presents itself how Bangladesh provided a conducive environment and safe haven for Sri Lankan investments and in turn how Sri Lankan professionals invested towards the growth of Bangladesh.

This mutuality evolved over some 40 odd years ago when Sri Lankan capital, expertise and technical know-how contributed towards a takeoff point in the apparel industry of Bangladesh which is now the primary provider to the world. As of now, Sri Lankan Investment amounts to around 2.5 billion US$ and some of the companies represent high-end professionals as CEO’s and middle management technocrats. They are mainly based in Dhaka and Chittagong roughly amounting to about 2000 individuals. Sri Lankan blue-chip companies cover banking, biscuits, gas, power and energy, apparel, shipping & logistics, health care, management and investment to mention a few. There are at least 25 cluster groups with 100% owned, 75% subsidiaries with controlling power around 80%. HE. Prime Minister Sheik Hasina personally conveyed to me how Sri Lankan professionals have provided a major value-added service to the Bangladesh economy. Her Excellency is hoping there will be a further investment flow into Bangladesh, especially in education and hospitals. Bangladesh has rewarded Sri Lankan professionals with upper-level salary scales and other remunerations.

Similarly, the goodwill mutual gesture of military training by each country and the Scholarship program for medical students’ endowed by Bangladesh are laudable.

Our engagements from the Mission in Dhaka were not deterred due to the pandemic. The planning of new initiatives were placed on track in the past two years. From the Sri Lankan end, our new investment plans have chalked out a long list of programs on two-way engagements. These largely cover Trade and Investments, Tourism, Shipping and aviation, agriculture, education, heritage and culture and health among other areas. A team of Travel writers and Tour operators from Bangladesh are currently touring Sri Lanka. An expanded plan on eco-tourism, sporting events and high end corporate tourism are on track. Events such as food festivals, investment sessions, IT-based operations, gems, tea and renewable energy initiatives are on the cards.

Aviation and shipping are making headway with official discussions at the ministerial level on coastal shipping, mutual birthing rights and warehouse facilities which are under discussion. Private sector shipping companies from Bangladesh and Sri Lanka most recently commenced working on joint ventures and the Government-owned shipping Corporations are working together. As for reverse investments, it is heartening to learn that Bangladesh has lifted the restriction of movement of capital as FDI’s. Though limited there was an outflow of FDI’s to Sri Lanka between 2005 and 2019 amounting to around 4 million US$. Sri Lanka is looking towards initial investments from Bangladesh and we have on track tourism, shipping, and pharma. We also need to strike a balance between the two brother nations so that trade balance needs to be rectified. As of now, the trade balance is in favour of Sri Lanka at 105 million US$. The near completion of the PTA will provide greater opportunities for closing the uneven flow.

Way forward towards
a shared future

Bangladesh and Sri Lanka need to prosper together. We also need to take care of each other in a newly evolving globalized world. We are also stakeholders of the larger family represented by the SAARC. BIMSTEC and IORA. As such, Bangladesh and Sri Lanka essentially need to see themselves as strategic partners. This partnership becomes imperative as our alignment revolves around the protection of the seascape embracing the two lands. One of the focal points and dynamics of the global power blocks is their engagement and aspirations in the Indian Ocean and the Bay of Bengal. The hinterland is a physical area that could be protected and managed by the respective states. We are now witnessing a sharply evolving competitive spirit that is setting the tone for the future of South Asia. The global neoliberal political and economic order is beginning to aggressively impact our region. It may effectively alter the balance of power and cordiality within the South Asian neighbourhood. Its impact is mainly felt over the seascape of the Bay of Bengal.

Our two lands hold an equally important role at the two strategic ends of the Bay of Bengal representing the “gateway” entry and exit points to the larger World systems. The Bay of Bengal essentially is an Oceanic highway. As such, the futuristic staying power and sustenance of our two countries revolve around the protection of the seascape of the Indian Ocean and the Bay of Bengal. It is now recognized that the Bay of Bengal is one of the richest resource areas in the world. Hence the high competitive premium placed on its natural and human wealth.

Bay of Bengal has wider ramifications. It provides entrée to a total oceanic eco-system associated with its residential community who are equal stakeholders to this oceanic repository. This implies common ownership to its total ecology: the wind, solar, aquatic and sub-surface mineral resources. It presents unison and not segments compartmentalized along narrow political fault lines or contours of hegimonic economic interests.

Most recently discussions feature the Centrality of the Bay of Bengal as a connectivity Hub for the Indo-Pacific Region and the Indian Ocean. There are also discussions on the Bay of Bengal Oceanic community. As equal stake holders Sri Lanka could collaborate with Bangladesh for studies on sustainable heritage economy and Bay of Bengal studies.

Bay of Bengal needs to be seen as an integral component of the IOR, where Both, Sri Lanka and Bangladesh are member of IORA. Taking a leaf out of the IORA, our two countries could steer towards (i) Maritime Safety & Security (ii) Trade & Investment (iii) Fisheries Management (iv) Disaster Risk Management (V) Academic, Science & Technology (vi) Tourism & Cultural Exchanges while Gender Empowerment is a significant area of engagement. If this is adhered to, it will be a permanent legacy of our trans-oceanic connectivity representing best of Track 2 & 3 Diplomacy.

This ideal finds expression in the “blue economy” or the ocean industry. The Blue Economy envisages the sustainable harvesting of our oceanic resources. In 2017 this idea was narrowed down to the Bay of Bengal by Abdullahel Bari from Bangladesh calling it “Our Ocean and the Blue Economy: Opportunities and Challenges” with special reference to Bangladesh.

Ocean industry has wider implications to both countries for its future planning, which essentially calls for joint studies. Both countries face security risks and over-exploitation of aquatic resources. In 2019 David Brewster suggested an Indian Ocean Security Forum as a regional agenda for Geo-Environmental Security Challenges. Such security risks may spill across geophysical boundaries and trigger off conflict areas. An allied opportunity is seen with the Tri-continental Maritime Security Cooperation (since 2013) where Bangladesh needs to be a full-time partner along with Sri Lanka, India and the Maldives. Most recent discussions also highlight the need to make the Bay of Bengal a zone of Peace so as to neutralize big power competition and also as a strategic philosophy on oceanic studies. Both Bangladesh and Sri Lanka must work together to realize such ideals.

In view of this, we wish to suggest a broader action plan incorporating a value-added purview of Oceanic Studies for the Bay of Bengal and as an engagement by its Oceanic community. A joint policy charted by Bangladesh and Sri Lanka for sustainable environmental development is one way forward how the oceanic front of Bay of Bengal is treated with sensitivity, protected and nurtured as a priority agenda by our two nations. It is about humanizing social, economic, and cultural interactions within a sustainable environment. It is seen as an alternative to development imposed from above on unequal partners in the global world. Bangladesh and Sri Lanka need to be key partners in realizing such an ideal.

Conclusion

Excellences’, ladies and gentlemen my officers at the Sri Lanka High Commission in Bangladesh join me in wishing another 50 years of friendship and solidarity between Bangladesh and Sri Lanka as a gift to our people and to the world.

May I sign off with the sentiment, Mage Suwarnabhumi Sri Lanka (my golden Sri Lanka) and Amar sonar Bangla (my Golden Bangla)



Features

Retirement age for judges: Innovation and policy

Published

on

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.

Continue Reading

Features

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

Published

on

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

Continue Reading

Features

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

Published

on

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

Continue Reading

Trending