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Blue whale population in Lankan waters shows rapid decline

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Whale-watching tours, when done irresponsibly, can cause stress to these gentle giants. (Mongabay Pic)

The blue whale population that has lived for many years in the coastal waters of Sri Lanka, has shown a rapid decline in their sightings in recent years, said a report published by the Mongabay yesterday.

“With multiple pressures on these massive creatures — from ship traffic on one of the world’s busiest shipping lanes, to disturbance from whale tourism, pollution and surface sea temperature rise and climate change — there are several possible factors for the disappearance of the whales,” it said.

For decades, the North Indian Ocean has been known to have its own distinct population of blue whales (Balaenoptera musculus). They have their own vocalisation or dialect, distinct from other blue whale populations. They also spend all year in warm waters, unlike most other blue whales, who migrate to feed in cold waters and breed in warmer seas, says Asha de Vos, a marine biologist and founder of Oceanswell, a marine conservation research and education center in Sri Lanka.

De Vos told Mongabay that the North Indian Ocean blue whales are “grazers not gorgers,” feeding throughout the year. The coasts of Sri Lanka, and particularly the southwest coast between Galle and Dondra, has long been a hotspot for this resident population.

Ranil Nanayakkara is a conservation biologist specialising in terrestrial and marine mammals and founder of Biodiversity Education and Research (BEAR). Both de Vos and Nanayakkara have studied these whales the year around — feeding, mothers nursing calves, and courtship behaviour — the whole life cycle playing out within 20 kilometers (12 miles) of the Sri Lankan coast.

Deep waters close to the coast and upwelling currents from sea canyons have created conditions supporting phytoplankton, and in turn, zooplankton and shrimp, the ocean’s tiniest creatures that sustain its biggest. “In terms of weight it could eat a fully grown African elephant every day,” author and biologist Mark Carwardine wrote of Sri Lanka’s blue whales in his On the Trail of the Whale.

However, it’s not easy to estimate blue whale numbers around Sri Lanka with certainty. A 2023 study by Upul Liyanage from the Sri Lankan National Aquatic Resources and Research Development Agency (NARA) and others noted 729 blue whale sightings, with many of the same whales likely observed multiple times. Nanayakkara’s research has identified 81 different blue whales from their distinctive tail fluke patterns. Meanwhile, Oceanswell is carrying out a database analysis.

The population and consistency of blue whales has given birth to a thriving whale-watching industry in the eastern city of Trincomalee, Kalpitiya in the northwest, and, most prominently, in Mirissa, in the south. One published study estimated nearly 80,000 visitors to Sri Lanka take whale-watching trips each year. Blue whales used to be abundant enough that some operators guaranteed a sighting or offered a free additional trip if there wasn’t one.

Oceanswell and BEAR have both conducted surveys on sightings at sea and spoken with whale-watching operators and fishermen, who agree that whale numbers are in decline.

“The reduction in numbers has been going on for a while,” de Vos told Mongabay. “We have seen dwindling numbers of blue whales in the last few years, not just 2024.”

Nanayakkara added that since 2018, “we observe a decline in blue whale sightings. In 2024, we saw one in the northwest, zero in the eastern coast and three off Mirissa, a total of four sightings this season. Even hydrophones haven’t been picking up the sounds from blue whales.” Compared to the reported 729 blue whale observations from 2015, this marks a dramatic decline.

Liyanage said NARA, the government’s marine research agency, is paying close attention to the trend. In 2024, it carried out a transect study that indicated a decline of more than 90%. More research is planned, he told Mongabay, adding that this year, “the scientific research vessel Fridtjof Nansen” — operated by the Norwegian government — “will undertake a comprehensive coastal study of marine mammal abundance and water quality parameters including plankton, chlorophyll and sea temperatures and there will also be short term surveys focusing on the hotspot between Dondra Head to Galle.”



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GMOA warns of trade union action unless govt. urgently resolves critical issues in health sector

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Influx of substandard drugs is of particular concern

The Government Medical Officers’ Association (GMOA) has warned of renewed and intensified trade union action if the government fails to fulfil its promise to resolve the ongoing crisis in the health sector within the next few days.

GMOA Executive Committee member Dr. Prasad Colombage said his association was hopeful that commitments made by the government, including those formally stated by the Minister of Health in Parliament and recorded in the Hansard, would be implemented.

He called for urgent remedial action in view of the influx of substandard medicines into the country, patient deaths linked to such drugs, difficulties faced by doctors in prescribing medicines, and disruptions to patient care services caused by the continued migration of medical professionals. These factors, he warned, had placed patients’ lives at serious risk.

Dr. Colombage said discussions had already been held with all relevant authorities, including the President and the Minister of Health. He expressed hope that swift solutions would be forthcoming based on agreements reached at discussions. However, he cautioned that the GMOA would not hesitate to resort to strong trade union action if tangible progress was not seen in the coming days.

Meanwhile, the Federation of Medical and Civil Rights Professional Associations yesterday (01) handed over a special memorandum to President Anura Kumara Dissanayake, calling for immediate action to resolve the deepening crisis in the health sector.

Federation President, Consultant Dr. Chamal Sanjeewa, said Sri Lanka’s health system was currently facing a severe crisis and had sought an opportunity to hold discussions with the President on the matter.

The memorandum calls for the President’s direct and immediate intervention on several key issues, including the Indo–Sri Lanka health agreement, shortages of essential medicines including cancer drugs, continued allegations surrounding the administration of the Ministry of Health, reported irregularities at the National Hospital, Colombo, and the absence of an internationally accredited quality control laboratory for the National Medicines Regulatory Authority to test medicines. The Federation has also requested a meeting with the President to discuss these concerns in detail.

By Sujeewa Thathsara ✍️

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Elephant census urged as death toll nears 400

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Sri Lanka’s latest elephant census must result in immediate policy action, not remain a paper exercise, Centre for Environmental Justice (CEJ) Managing Director Dilena Pathragoda warned, as nearly 400 wild elephants have already died in 2025 alone amid escalating human–elephant conflict.

With the national elephant population estimated at around 5,879, Pathragoda said the figures would be meaningless unless they shape land-use planning, habitat protection and enforcement.

“As of mid-December, close to 397 elephants have died in 2025, mostly due to shootings, electrocution, train collisions and other human-related causes,” he told The Island. “When deaths continue at this scale, census numbers alone offer little reassurance.”

Official data show that 388 elephants died in 2024, while 2023 recorded a staggering 488 deaths, one of the highest annual tolls on record. Conservationists warn that the trend reflects systemic failure to secure habitats and elephant corridors, despite repeated warnings.

“An elephant census should not end with a headline figure,” Pathragoda said. “If these statistics do not influence development approvals, infrastructure planning and land-use decisions, they fail both elephants and rural communities.”

Elephant populations remain unevenly distributed, with higher densities in the Mahaweli, Eastern and North Western regions, while other areas face sharp declines driven by habitat fragmentation and unplanned development.

Pathragoda said recurring fatalities from gunshots, illegal electric fences, improvised explosive devices along with poisonings  and rail collisions expose the limits of short-term mitigation measures, including ad hoc fencing projects.

“The crisis is not a lack of data, but a lack of political will,” he said, calling for binding conservation policy, transparent environmental assessments and accountability at the highest level.

He urged authorities to treat elephant conservation as a national governance issue, warning that failure to act would only see future censuses record further decline of these majestic animals.

“Elephants are part of Sri Lanka’s natural heritage and economy,” Pathragoda said. “Ignoring these warning signs will come at an irreversible cost.”

By Ifham Nizam ✍️

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CTU raises questions about education reforms

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The Ministry of Education has yet to clarify whether school hours will be extended by 30 minutes from next Monday (05) under the proposed new education reforms, Ceylon Teachers’ Union (CTU) General Secretary Joseph Stalin has said.

Stalin told The Island that the Ministry should reconsider the planned reforms, warning that decisions taken without adequate study and consultation could have serious repercussions for nearly four million schoolchildren.

He said the Education Ministry had announced that education reforms would be implemented in Grades from 1 to Grade 6, but it had not said anything about the Grades above 6. This lack of clarity, he said, had created confusion among teachers, parents and students.

Stalin also noted that although learning modules had been issued, students are required to obtain photocopies based on the codes introduced in these modules. However, the Ministry had not revealed who would bear the additional financial burden arising from those costs, raising further concerns over the practical implementation of the reforms.

by Chaminda Silva ✍️

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