Full Papers in refereed journal
- Thilakarathna, R.M.G.N. (2025) Sea Urchins: Sri Lanka’s Untapped Blue Economic
Resource? (Editorial). Journal of the University of Ruhuna. 13 (2) 93-100. DOI: https://doi.org/10.4038/jur.v13i2.813
- Thilakarathna, R. M. G. N., Michael Van
Keulen, and John K. Keesing. (2025). Reproductive seasonality of Sea Urchin
Centrostephanus tenuispinus on high latitude coral and macroalgal reefs in the
south-eastern Indian Ocean." Journal of the Marine Biological
Association of the United Kingdom 105 ): e124.
Wickramaratne, I. U., Thilakarathna, R. M. G. N. and M. D. S.
T. De Croos. (2025). Reproductive Biology, Seasonal Variation of Flat-head
Lobster Thenus orientalis (Lund, 1793) in Pethalai, Sri Lanka. Asian
Journal of Fisheries and Aquatic Research 27(11) 186-203. Thilakarathna,
R.M.G.N., van Keulen M. and Keesing J.K. (2022) The Centrostephanus
tenuispinus (Clatk, 1914) is an important bio-eroder on a high
latitude reef. Marine Biology. 169 (6), 1-12. - Thilakarathne, E.P.D.N.,
Terney Pradeep, K.P.B. and Thilakarathna, R.M.G.N., (2015)
Diversity and distribution of cetaceans off southern coast of Sri Lanka I;
Relationship with depth. Sri Lanka Journal of Aquatic
Sciences.20(1).23-33.
- Thilakarathne, E.P.D.N.,
Terney Pradeep, K.P.B. and Thilakarathna, R.M.G.N., (2015)
Diversity and distribution of cetaceans off southern coast of Sri Lanka
II; Relationship with Sea surface temperature, Salinity and Water Density.
Sri Lanka Journal of Aquatic Sciences.20(1).35-45.
- De
Croos, M.D.S.T, Pálsson S and Thilakarathna, R.M.G.N. (2011) Sex
ratios, sexual maturity, fecundity and spawning seasonality of Metapenaeus
dobsoni off the western coastal waters of Sri Lanka. Invertebrate
Reproduction and Development. 55: 110-123.
Some selected Conference presentations
- Hewage S.S.T, Pathirana Gayan, Thilakarathne
R.M.G.N, Noh Kyung-Min, and Wang D. (2026) Warming-induced shifts in Arabian Sea surface
chlorophyll a: Implications for regional productivity.
Proceedings of the 13th Ruhuna International Science and Technology
Conference. 19p.
- Dissanayake K.M.A., Thilakarathna R.M.G.N. and de Croos
M.D.S.T. (2026) Bioerosion of sea urchin Stomopneustes
variolaris (Lamarck,1816) in two intertidal Reefs in a tropical island. 16th International Coral Reef Symposium (ICRS), Auckland, New
Zealand.
- Hewage S.S.T, Pathirana Gayan, Thilakarathne R.M.G.N , Noh
Kyung-Min, and Wang D. (2026) Warming-induced shifts in the mean state of the Arabian Sea Surface
Chlorophyll. Ocean Sciences Meeting. Glasgow-Scotland. (Accepted)
- Thilakarathna, R.M.G.N. (2025). Interannual variation of macroalgal
composition in a tropical intertidal rocky reef. Proceedings of the 25th International
Seaweed Symposium (ISS2025). British Columbia, Canada.
- Kaludewalage Rumesha
Madhuwanthi, R.M.G.N. Thilakarathna, Gayan Pathirana,
Dong-Geon Lee, and Dongxiao Wang (2025) Impact of Tropical Climate Modes
(Indian Ocean Dipole and El Niño/Southern Oscillation) on Winter Surface
Chlorophyll in the Indian Ocean. Proceedings of the 12th Ruhuna
International Science and Technology Conference.6p.
- Thilakarathna, R.M.G.N. (2024) Spatial
distribution and niche partitioning among co-existing sea urchins in a
tropical intertidal rocky reef. Proceedings of the
17th International Echinoderm Conference and 2nd
International Hemichordate Meeting, Tenerife, Spain. 93 pp
- Wickramaratne, I.U., De Croos M.D.S.T. and Thilakarathna R.M.G.N. (2024) Population
dynamic parameter estimations of a
slipper lobster in Pethalai Sri Lanka. Proceedings of the 9th
Wayamba University Research congress-2024. 51p.
- Wickramaratne, I.U., De Croos M.D.S.T. and Thilakarathna R.M.G.N. (2024)
Reproductive biology of slipper lobster Thenus orienta;is in Pethalai Sri
Lanka. Proceedings of the 9th Wayamba University Research
congress-2024. 83p
- Wickramaratne, I.U., De Croos M.D.S.T. and Thilakarathna R.M.G.N. (2024) Population
dynamics of Thenus orienta;is in Pethalai Sri Lanka: Implications for
Management. Proceedings of the 9th Wayamba University Research
congress-2024. 81p.
- Kulasekara
W.G.S.N., Thilakarathna R.M.G.N., De Croos M.D.S.T. (2024) ‘Reproductive
periodicity of the sea urchin Tripneustes gratilla (Linnaeus, 1758) in
Ahangama rocky reef, Sri Lanka’ in abstract of the Symposium on Ocean and
Freshwater Systems (SOFS 2024) on Faculty of Fisheries and Marine Sciences
& Technology, University of Ruhuna, Sri Lanka.
- Kodikara
S.S.M, Thilakarathna R.M.G.N, Yapa Y.M.A.L.W (2024) 'Extraction and
Quantification of edible alginates from selected brown algae species in
Ahangama and Beruwala rocky intertidal reefs, Sri Lanka' in abstract of
the Symposium on Ocean and Feshwater Systems (SOFS 2024) on Faculty of
Fisheries and Marine Sciences & Technology, University of
Ruhuna, Sri Lanka.
- Thilakarathna, R.M.G.N. and Kulasekara W.G.S.N. (2023) Feeding preferences of two
co-existing sea urchins Stomopnestes variolaris (Lamarck, 1816) and
Tripneustes gratilla (Linnaeus, 1758) in a tropical intertidal
reef. Proceedings of
British Ecological Society annual meeting, UK.
- Thilakarathna, R.M.G.N. (2023) Seasonal changes in macroalgae on a tropical rocky
shore. 24th International Seaweed Symposium, Australia.
- Thilakarathna, R.M.G.N. (2021) Feeding Preference of Sea urchin Tripneustes gratilla in
Ahangama Rocky Shore, Southern Coast of Sri Lanka during Southwest Monsoon. Proceedings of the 18th Ruhuna University Academic Sessions,44p
- Rathnamali G.B.M., Thilakarathna,
R.M.G.N., and Premarathne U. (2020) Diversity and spatial distribution of seaweed
and seagrass communities in Ahangama rocky shore in the northeast monsoon.
Proceedings of the 26th Annual Sessions
of the Sri Lanka Association for Fisheries and Aquatic Resources.28p
- Thilakarathna, R.M.G.N., Van Keulen, M. and Keesing, J. (2018) Status of Sea urchin Centrostephanus tenuispinus; Coral dominated reef vs macroalgae dominated reef on the west coast of Australais- International Echinoderm Conference, Nagoya,Japan.
- Thilakarathna, R.M.G.N., Van Keulen, M. and Keesing, J. (2016) Role of Sea urchin Centrostephanus tenuispinus (Clark, 1914) as a bio-eroder- in Hall Bank (32° 2.002´S and 115° 42.957´E) Reef Western Australia”- International Coral Reef Symposium, Hawaii, USA
- De Croos, M.D.ST., Weerasekara, K.A.W.S., Hettige, H.D., Thilakarathna, R.M.G.N., Priyadarshan, R.N., De Silva, L.L.R.B. and Gunasekara, K.A.U.S. (2014) Ballast water: availability of non-indigenous species and degree of management practices compliance by the ships arrived at the Colombo port Sri Lanka. Proceedings of the 20th Annual Sessions of the Sri Lanka Association for Fisheries and Aquatic Resources.11p
- Thilakarathne, E.P.D.N., Terney Pradeep, K.P.B. and Thilakarathna, R.M.G.N., (2013) Diversity and distribution pattern of cetaceans in the southern coast of Sri Lanka. Proceedings of the 19th Annual Sessions of the Sri Lanka Association for Fisheries and Aquatic Resources.32p
- Thilakarathna, R.M.G.N., Jayakody, S. and Amarasinghe M.D. (2012) Annual fluctuations in populations of sea urchin Stomopneustes variolaris (Lamarck, 1816) in two rocky shores of southern Sri Lanka. Proceedings of the 18th Annual Sessions of the Sri Lanka Association for Fisheries and Aquatic Resources.1p
- Thilakarathna, R.M.G.N., Jayakody, S. and Amarasinghe M.D. (2011) A comparison of reproductive biology of the sea urchin Stomopneustes variolaris (Lamarck, 1816) in two rocky shores of Sri Lanka. Proceedings of the 17th Annual Sessions of the Sri Lanka Association for Fisheries and Aquatic Resources.17p.
- Thilakarathna, R.M.G.N., Jayakody, S. and Amarasinghe M.D.(2010) Fluctuations of sea urchins (Class: Echnoidea) in Hikkaduwa (protected but highly disturbed) and Ahangama (unprotected and less disturbed) in Sri Lanka with macro algae cover. 11th Student Conference on Conservation Science, University of Cambridge, UK.47p.
- Thilakarathna, R.M.G.N., Jayakody, S. and Amarasinghe M.D.(2009) Spatio-temporal Variations of Sea Urchin Populations (Phylum: Echinodermata; Class: Echinoidea) in Two Rocky beaches with Varying Levels of Protection.10th International Congress on Ecology, Brisbane, Australia.
- Thilakarathna, R.M.G.N. and Jayakody, S. (2008) A Study on Identification and Distribution of Sea Urchins (Phylum: Echinodermata, Class: Echinoidea) in Coastal Zone of Sri Lanka. 9th Student Conference on Conservation Science, University of Cambridge, UK.57p.
- Thilakarathna, R.M.G.N. and Santiapillai, C. (2007) Diversity, annual and diurnal fluctuations of birds associated with a seasonal reservoir in dry zone lowlands of Sri Lanka. Proceedings of British Ecological society, UK,46p.
|