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Study on carnivorous fish of Sri Lanka

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Channa orientalis also known as the Ceylon snakehead is the only pelvic-fin less snakehead in Sri Lanka.

 

by Ifham Nizam

A team of ichthyologists in their latest study on carnivorous fish of Sri Lanka points out that Channa orientalis also known as the Ceylon snakehead, is the only pelvic-fin less snakehead in Sri Lanka.

Snakeheads are one of the main carnivorous groups of freshwater fish in Sri Lanka. They belong to the family Channidae and the genus Channa. There are six species of Channa in Sri Lanka, two of which are endemic. The two endemic species are Channa ara and Channa orientalis. Channa orientalis also known as the Ceylon snakehead is the only pelvic-fin less snakehead in Sri Lanka.

The latest study on the genetic diversity and morphological stasis in the Ceylon Snakehead found that the taxonomic identity and the type locality of this species were not certain.

Scientist Hiranya Sudasinghe told The Island yesterday: “We show that C. orientalis is composed of two geographically and genetically distinct lineages but which show remarkable morphological similarity between the two lineages. The recognition of two distinct genetic lineages is important because, when it comes to conservation management of this species, these two lineages could be recognised as two Evolutionary Significant Units that would deserve separate conservation attention.”

“We argue that the type locality of C. orientalis is south-western Sri Lanka, to which the species is endemic. Channa orientalis is distinguished from other species of Channa by the absence of pelvic fins, adult colouration in life, dorsal- and anal-fin ray counts, number of vertebrae, and scale counts,” the team pointed out.

This species feeds like a ciclids, experts point out.

The team of scientists comprises of Hiranya Sudasinghe of Evolutionary Ecology and Systematics Lab, Department of Molecular Biology and Biotechnology, University of Peradeniya, Peradeniya, Sri Lanka/ Postgraduate Institute of Science, University of Peradeniya, Peradeniya, SriLanka, R.H.Tharindu Ranasinghe of Butterfly Conservation Society of Sri Lanka, Rohan Pethiyagoda of  Ichthyology Section, Australian Museum, 1 William Street, Sydney, NSW 2010, Australia, Madhava Meegaskumbura of  Guangxi Key Laboratory of Forest Ecology & Conservation, College of Forestry, Guangxi University, Nanning, People’s Republic of China and Ralf Britz Senckenberg Naturhistorische Sammlungen Dresden, Museum für Tierkunde, Königsbrücker Landstrasse 159, 01109 Dresden, Germany

As the type species of the genus Channa, the identity of the pelvic-finless snakehead Channa orientalis Bloch is important to channid systematics. Although this name has been attached to a Sri Lankan species for the past 160 years, its vaguely specified type locality, ‘India Orientali’, has long cast doubt as to its origin.

Based on a collection across its range in the island and analysis of the cytochrome c oxidase subunit 1 (cox1) barcoding gene, scientists show that the Sri Lankan pelvic-finless Channa is composed of two geographically discrete lineages separated by an uncorrected pairwise cox1 genetic distance of 6.9–8.1%.

The minimum genetic distance between these two lineages and other species of the Gachua group of Channa is 5.1%. Despite their genetic divergence, the two lineages exhibit remarkable morphological stasis: they are indistinguishable from each other in external morphology.

 



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Record 1,600 students take Russian Classical Ballet examination in Sri Lanka

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More than 1,600 students sat this year’s Russian Classical Ballet Examination, the largest number ever to take part in the examination in Sri Lanka. Exams were held in Colombo from 5, to 18, October and in Galle on 10 October.

Students aged four and above came from across the island, including Colombo, Galle, Gampaha, Negombo, Matara, Kelaniya, Panadura, Wattala, Kiribathgoda, Ratnapura, Kandy, Kurunegala, Bandarawela and Badulla. They are taught by 15 dedicated teachers trained in the Vaganova method, the renowned Russian system of classical ballet training.

They were examined by  Dr. Oxana Karnovich of the Moscow State Academy of Choreography,  a distinguished academic and curator.

The Russian School of Ballet and Dancing was established in 2001 by  Michael Ustinov, Buddhapriya Ramanayake and Mrs Chandi Aluvihare, with Mrs Galina Pleshakova as its founding instructor. Today the School is led by Director Madam Maria Popova, Counsellor of the Embassy of the Russian Federation in Sri Lanka.

 

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Buddhist hierarchy demands prison perks for monk convicts

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MONETABRIEF– Sri Lanka’s two most senior Buddhist chapters, Malwatte and Asgiriya, demanded special concessions for monks serving prison sentences, following the disrobing of convicted monk Ven. Galagodaatte Gnanasara in line with established procedures.

The chief prelate of the Asgiriya chapter, Most Venerable Warakagoda Sri Gnanarathana, told Prisons Commissioner Senaka Palletenna that Ven. Gnanasara, who is serving a six-year sentence for contempt of court, must be released immediately.

Prison authorities have no power to release or pardon convicts, but Palletenna told the monk in Kandy on Friday that he would convey his request to the relevant government authorities.

“There is no point in talking about this and that… The entire country has been shaken (??????? ) . He must be released,” the Asgiriya chief prelate said.

The Malwatte chief prelate, Most Venerable Thibbatuwawe Sri Siddhartha Sumangala, appeared to accept the court verdict against Ven. Gnanasara, but asked the prisons chief whether a separate section could be established for convicted monks.

Palletenna noted that a special ward for the clergy already existed at Welikada Prison.

At least 63 convicted Buddhist monks are currently incarcerated within Sri Lanka’s criminal justice system.

Meanwhile, a group of 34 Buddhist monks named in a Colombo Fort Magistrate’s Court order to vacate the vicinity of the Presidential Secretariat ended their protest and dispersed after lunch on Friday.The monks are demanding an unconditional pardon for Ven. Gnanasara, who has previously been imprisoned, making him a reconvicted prisoner.

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Debate on NCM against Speaker postponed indefinitely

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The debate on the no-confidence motion against Speaker Dr. Jagath Wickramaratne, submitted by the Samagi Jana Balawegaya (SJB), has been postponed indefinitely pending the Attorney General’s opinion on certain technical issues in the motion.

Government representatives raised the matter at a meeting of the Committee on Parliamentary Business, pointing out that several provisions of the motion required clarification and that the Attorney General’s advice should be obtained.

As obtaining the opinion would take time, the debate could not be scheduled for the next parliamentary week, parliamentary sources said.

Chief Opposition Whip Gayantha Karunatilaka said a date for the debate would be decided after the Attorney General’s advice was received.

Meanwhile, Parliament is scheduled to meet from October 20 to 23, Secretary General of Parliament Kushani Rohanadeera announced.

The parliamentary business for the week was finalised at a meeting of the Committee on Parliamentary Business held on Friday (16) under the chairmanship of Deputy Speaker Dr. Rizvie Salih.

On each sitting day, the period from 9.30 a.m. to 10 a.m. will be allocated for parliamentary business under Items 1 to 6 of Standing Order 22. Questions for Oral Answers will be taken up from 10 a.m. to 11 a.m., followed by questions under Standing Order 27(2) from 11 a.m. to 11.30 a.m.

On Tuesday, October 20, an Opposition-sponsored Adjournment Motion will be debated from 11.30 a.m. to 5.30 p.m.

On Wednesday, October 21, a resolution under the Public Debt Management Act and a Supplementary Estimate will be taken up for debate and approval from 11.30 a.m. to 5 p.m. The annual reports of five statutory institutions will subsequently be presented for approval without debate, while questions at the Adjournment Time will be taken up from 5 p.m. to 5.30 p.m.

On Thursday, October 22, the Second Reading debates on two Bills to amend the Poisons, Opium and Dangerous Drugs Ordinance (Bills Nos. 79 and 80) will be held from 11.30 a.m. to 5 p.m.

The annual reports of five statutory institutions will then be taken up for approval without debate, followed by an Opposition-sponsored Adjournment Motion from 5 p.m. to 5.30 p.m.

On Friday, October 23, the Second Reading debate on the Elimination of Rabies and Registration of Dogs Bill will be held from 11.30 a.m. to 5 p.m. A Government-sponsored Adjournment Motion will be debated during the final half-hour of the sitting.

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