Mr. Jayanatha

Name : J.S.Jayanatha
Contact :  jsarathjayanatha@yahoo.com
Acadamic Qualifications :
  • MSc in Fisheries Science,  Graduate School of Global Fisheries, Pukyong National University, South Korea.
  • MSc in Fisheries and Aquatic Resources Management.
  • Bachelor of Science, University of Ruhuna, Matara, Sri Lanka.
Experience :
  • Scinetist at Kapparathota Regional Research Center
  • OIC Rekawa Regional Research Center
  • OIC Kalpitiya Regional Research Centre
  • Acting OIC Kalpitiya Regional Research Centre
  • Research Officer at Kalpitiya Regional Research Centre
Fellowships Awards :
  • Training workshop on ‘Carrying Capacity Assessment of Lagoon’-Norway-Sri Lanka bilateral project.
  • Follow-up Management Program-for KOICA-PKNU Scholarship Program (Countermeasures of Climate Change and Seafood Safety), Pukyong National University, Busan, South Korea.
  • Fellowship to study on Mariculture, Aqua feed production and Disease Control and Prevention for Developing Countries, Xiamen, China.
  • Follow-up Management Program-for KOICA-PKNU Scholarship program, Pukyong National University, Busan, South Korea.
  • KOICA-PKNU International graduate scholarships for fisheries science master program, Busan, South Korea (Pukyong University).
  • FAO-Regional workshop on strengthening assessments of fisheries and aquaculture in the Asia-Pacific Region for policy development and management, Yangon, Myanmar.
  • Fellowships to study Marine fin fish hatchery training program under the TICA funded, at Coastal aquaculture Research institute of Songkhla in Thailand, May 2010.
Publications :
  • Ajith Kumara, P.A.D., J.S. Jayanatha, J. Pushpakumara and D.C.T. Dissanayake (2013). Artificial breeding and larval rearing of three tropical sea cucumber species: Holothuriascabra, Pseudocolochirusviolaceusand Colochirusquadrangularis in Sri Lanka. SPC beche-de-mer Information Bulletin, 33: 30-37
  • Ajith Kumara, P.A.D., J.S. Jayanatha and D.C.T. Dissanayake (2012). Induced breeding and larval rearing of the sea cucumber 18th Annual Scientific Session: Sri Lanka Association for Fisheries and Aquatic Resources (SLAFAR) P.9.
  • Ajith Kumara, P.A.D., J.S. Jayanatha, J. Pushpakumara and D.C.T.Dissanayake (2012). Artificial breeding and larval rearing of Pseudocolochirusviolaceus  (Sea apple cucumber) in Sri Lanka. Scientific Session: National Aquatic Resources Research and Development Agency (NARA), Colombo 15, Sri Lanka P.5.
  • U.S.P.K. Liyanage, J,S.jayanatha some imoratnt feature of te east costa spiy lobster fishery after imlementatin of co-mangmet mechanism proceedings of the national aquatic resources rserch abd developnet agency9NARA), scientific session2016p 12-15
  •  Jayanatha, J.S. Shrimp trawl fishery status in NW Coastal Waters of Sri Lanka. (Scholars’ Press) ISBN: 978-620-2-31295-0, 2018- International Book Market Service Ltd, OmniScriptum Publishing Group, German.
  • Jayanatha, J.S., Suwandahannadi, W.K., Ilanperuma, H.N., (in press).   Plant Diversity and Structural    Dynamics of Mangroves in Rekawa Lagoon, Sri Lanka. International Journal of Integrative Sciences.
  • Jayanatha, J.S., Suwandhahannadi, W.K., Nisreena., J.F., Mangalika, A.H., Ruwan Gamage, K.G.    and Jayasooriya, S.P. (2018) .5thInternational Conference on Multidisciplinary Approaches – 2018 ‘Sustainable Development through Multidisciplinary Research’.(Pp163), Colombo,
  • Jayathilaka, R.A.M., Jayanatha, J.S., Suwandahannadi, W.K., Hettige, N.D., and Jayasiri, H.B., (2018). Diversity of flora and fauna in Rekawa lagoon, Southern coast of Sri Lanka., Proceeding of the National Aquatic Resources Research and Development Agency (NARA)., Scientific sessions 2018., 43 p.
  • Liyanage, U.S.P.K., Jayanatha, J.S., Wickramasinghe, W.A.L., and Jayasooriya, S.P., (2018). Current status of the spiny lobster fishery in Hambanthota District., Proceeding of the National Aquatic Resources Research and Development Agency (NARA)., Scientific sessions 2018., 4 p.
  • Thanthrige, M.R.L., Jayanatha, S., Narasinghe, R.V., Pushpakumara, J., Pahalawattaarachchi, V., (2017). Identification of possible carrier species responsible for horizontal transmission of white spot syndrome virus (WSSV) disease to cultured Penaus monodon., Proceedings of the National Aquatic Resources Research and Development Agency (NARA)., Scientific sessions 2017., 6 p.
  • Jayanatha, J.S., and Liyanage, U.S.P.K., (2017). Growth hormone gene sequencing, expression analysis of mRNA transcripts in embryos development stages and tissues from Acipenser baerii (Acpenserifomes). Proceedings of 1st International Research Symposium (pp. 185). Uva Wellassa, Badulla,  University of Sri Lanka:
  • Jayanatha, J.S., and Liyanage, U., (2016). Critical time course and successful Ovi -position of sea turtles in Midigama beach south coast of Sri Lanka, Proceedings of the WILDLANKA symposium Annual session (pp. 37). Colombo, Sri Lanka. Department of wild life conservation.
  • Jayanatha, J.S., (2015). Status of the shrimp trawl fishery in Northwestern coastal waters of Sri Lanka. Proceedings of the 21st annual scientific session (SLAFAR).( pp 31). Colombo, Sri Lanka.
  • Ajith Kumara, P.A.D., J.S. Jayanatha, J. Pushpa Kumara and Dissanayake, D.C.T.,  (2013). Artificial breeding and larval rearing of three tropical sea cucumber species: Holothuria scabra, Pseudocolochirus violaceus and Colochirus quadrangularis in Sri Lanka. SPC beche-de-mer Information Bulletin, 33: 30-36.
Conferences / Presentations :
  • International Research Symposium Uva Wellassa University of Sri Lanka- (Growth hormone gene sequencing and gene expression from Acipenser baerii).
  • “WILDLANKA”-International Research Symposium Wild Life Department, Sri Lanka- (Critical time course and successful Ovi-position of sea-turtles in Midigama Beach.)
  • Follow-up Program for KOICA-PKNU Scholarship- International Research Conferences on ODA program. Establishment of powerful surveillance on WSSV disease management strategies using PCR based identification for shrimp aquaculture in Sri Lanka.
  Research Projects Undertaken
  • S.Jayanatha-Empherical modelling of benthic species distribution, abundance and   diversity in Rekawa lagoon: scope for the future culture base fish production.
  • J.S.Jayanatha, V.Phalawattaarachchi-Determination of sustainable carrying capacity estimation for culture based fisheries in selected perennial tanks in Southern Province –A    case study in collaboration with NAQDA (carrying capacity estimation and study on potential yield in Bandagiriya, and Ridiyagama reservoirs, especially concise with limnological parameters.
  • J.S.Jayanatha, Upul Liyanage, V.Phalawattaarachchi -Establishment of seaweed farming by increasing culture diversity and ensuring mother stock availability.( Kappaphycus alvarezii). North and Southern provice.
  • J.S.Jayanatha, W.K. Suwanadahannadi -Development of breeding techniques, culture activities for selected economical important freshwater ornamental fish at Rekawa Regional Research Centre, Sri Lanka.
  • J.S.Jayanatha (Team leader/IARAD) -Development of Environmental Profiles two Lagoons in Sri Lanka (Panama Lagoon Eastern Province and Rekawa Lagoon)-Team leader in IARAD section works. Such as, sea grass distribution, mangrove diversity, sand dunes and their vegetation structure, macro benthic diversity.
  • Study on Sea grass distribution, Diversity and Richness Shannon Diversity Indices and Evenness index.
  • Developed research report on Species Evenness, Species Richness in Rekawa Lagoon.
  • Comparative study on Mangrove distribution, species richness and anthropogenic activities related to the distribution of their particular habitats at Panama and Rekawa Lagoon in Sri Lanka.
  • J.S.Jayanatha, Upul Liyanage, V.Phalawattaarachchi-Development of culture techniques in selected seaweed species and quality improved parent stock maintenance of commercially important seaweeds.
  • Upul Liyanage, J.S.Jayanatha-In-situ conservation of spiny lobster berried female south coastal waters in Sri Lanka.
  • J.S.Jayanatha, Rasika Thanthrige-Management and Control horizontal spreading routes of White Spot Syndrome Virus (WSSV) disease in the shrimp farming industry in Sri Lanka.
  • J.S.Jayanatha, Upul Liyanage- Lagoon Enhancement Program-Enhancement of lagoon productivity using possible species (P. monodon restocking program at Panama lagoon in Eastern Province.
  • Upul Liyanage, J.S.Jayanatha Conservation and management of the spiny lobster resources in the South and East costal Fisheries Management Area in Sri Lanka.
  • A.D.Ajith Kumara, J.S.Jayanatha Sea cucumber breeding, larval rearing, enhancement of community base culture activities in Sri Lanka specially emphasized on (Holothuria Scabra ) Species.
Professional Membership
  • Life Member of the Sri Lanka Association for the Advancement of Science-SLAAS. (Life membership-10832/D).
  • Life member of the Sri Lanka Association for Fisheries and Aquatic Resources (SLAFAR).
Professional Skills
  • Familiar with molecular techniques, gene sequencing, phylogenetci analysis, RT-PCR techniques,
  • Experienced with range of laboratory techniques including sterile cell culture, DNA extractions, gel purifications, PCR, Real Time PCR
  • Exeriance with handlingvariou lab equipment such as RT-PCR, and PCR works and gene expression analysis.