Name: Sujeewa Ariyawansa 

Contact: sujeewa@nara.ac.lk
sariyawansa@hotmail.com  

Education : 

• PhD (Food Science)
• MSc (Food Science and Technology)
• BSc (Agric) Honours, second class (upper division)

Research interest 

• Fish Post-Harvest Technology, Quality Assurance , Food Microbiology

Research Experience

• 23 year research experience at NARA
• 3 year research experience at the National University of Malaysia

Appointments

• Head/ Regional Research Centre Kadolkelle - National Aquatic Resources Research & Development Agency (NARA) (from 4^th January 2019~ Present)
• Principal Scientist/ Post Harvest Technology Division of National Aquatic Resources Research & Development Agency (NARA) (from 08 Dec 2011 ~ Present)
• Head/ Post Harvest Technology Division of National Aquatic Resources Research & Development Agency (NARA) (from 17 August 2009 ~ 31 December 2013)
• Senior Scientist / Post Harvest Technology Division of NARA (from 01 July 2008 ~ 07 Dec 2011)
• Technical manager and quality manager for microbiology and chemical laboratories (from 1999 ~ present)
• Research Officer / Post Harvest Technology Division of NARA (from 02 Dec 1996 ~30 June 2008)
• Quality Assurance Executive at Ceylon Biscuits Limited, Sri Lanka (from June 1994 to Dec 1996)
• Assistant lecturer/Demonstrator in Food Science & Technology at the Department of Food Science & Technology, Faculty of Agriculture, University of Peradeniya (from 1993 to 1994)

Publications and Presentations

Journal articles

• P.H. Ginigaddarage, I.H.W. Surendra, W.K.S.R. Weththewa, K.W.S. Ariyawansa, G.J. Ganegama Arachchi, B.K.K.K. Jinadasa, K.S. Hettiarachchi1and E.M.R.K.B. Edirisinghe (2018). Microbial and chemical quality of selected dried fish varieties available in Sri Lankan market. Sri Lanka Journal of Aquatic Sciences. 23(1), pp.119–126.
• Sivakaran, M., Ginigaddarage, P.H., Ariyawansa, K.W.S., and Jayasinghe, C.V.L. Identification of histamine producing enterobacteriaceae in Indian Mackeral (Rastrelliger kanagurta) using polymerase chain reaction. The Sri Lanka Journal of South Asian Studies Vol 02, No 01, June 2016.
• Ariyawansa, P. Ginigaddarage, K. Jianadasa, J.M.Chandrika, G. Ganegama Arachchi and S. Ariyarathne. (2016). Assessment of microbiological and bio-chemical quality of fish in a supply chain in Negombo, Sri Lanka. Procedia Food Science 6(2016) 246-252.3_3-Cop.
• P.H. Ginigaddarage, K.W.S. Ariyawansa, K.S. Hettiarachchi, J.M. Chandrika, S. Abhayarathne and G.P. Roshan (2014). Quality assessment of seafood sold in selected retail outlets of the Western Province, Sri Lanka. Journal of National Aquatic Resources Research and Development Agency of Sri Lanka. 43: 68-83.
• B.K.K.K. Jianadasa, P.H. Ginigaddarage, S. Ariyawansa. (2014). A Comparative Quality Assessment of Five Types of Selected Fishes Collected from Retail Market in Sri Lanka. American Journal of Food Science and Technology 2:21-27.
• Norrakiah Abdullah Sani, Sujeewa Ariyawansa, Jamal Khair Hashim and Abdul Salam Babji (2013). The Risk Assessment of Vibrio parahaemolyticus in Black Tiger Shrimps (Penaeus monodon) in Malaysia. Food Control 31:546-552.
• Sujeewa Ariyawansa and Geevika GanegamaArachchi. (2013). Utilization of fish waste in Sri Lanka: An Overview. Journal of Fisheries Science and Technology - Special issue 116-120.
• Ariyawansa K.W. Sujeewa., Norrakiah Abdullah Sani and Laina Munid. (2009). Prevalence of Toxic Genes of Vibrio parahaemolyticus in Shrimps (Penaeus monodon) and Culture environment. International Food Research Journal 16: 89-95.
• Abdullah Sani, K.W.S. Ariyawansa and A.S. Babji (2008). Prevalence and Risks of Vibrio parahaemolyticus in Black Tiger Shrimp (Penaeus monodon). International Journal of Infectious Diseases. 12: supplement 1, 230.
• K.W.S. Ariyawansa, N. Abdullah Sani and A.S. Babji, (2008). Comparison of the efficiency of methods and selective agars for enumerating Vibrio parahaemolyticus in shrimps. Journal of Science and Technology in the Tropics 4:19-25.
• K.W.S. Ariyawansa, K.S. Hettiarachchi and S.P Jayasooriya (2005). Microbiological quality of fresh and frozen black tiger shrimps cultured in Sri Lanka. Sri Lanka Journal of Aquatic Science.10:73-83.
• K.W.S. Ariyawansa, D.N. Wijendra and S.P.S.D. Senadeera (2003). Quality Index Method developed for Frigate tuna (Auxis thazard). Sri Lanka Journal of Aquatic Science. 8:95-109.
• W.Thushani, K.W.S. Ariyawansa and P.C. Arampath (2003). Recovering ability of freeze-stressed Salmonella typhimurium and Staphylococcus aureus cells in frozen shrimp. Ceylon Journal of Biological Sciences. 31:63-69.
• K.W.S. Ariyawansa, J.M.P.K. Jayasinghe and K.S. Hettiarachchi (1998). Bacterial profiles in shrimp culture systems affected by white spot epizootic. Sri Lanka Journal of Animal Production. 1(1):61-68.

Abstracts and Extended Abstracts                                

• R.Lashanthini, S. Gallage, K.W.S. Ariyawansa, G.J. Ganegama Arachchi and N.P.G. Pushpitha. (2018). Determination of biotoxins in Crassostrea madrasensis: a case study of Puttalam Lagoon in Sri Lanka. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 58.
• A.P.A. Madushani, S. Ariyawansa and C.V. L. Jayasinghe. (2018). Validating Torrymeter as a sensor tool for freshness assessment of Katsuwonus pelamis, Decapterus russelli and Lethrinus nebulosus. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 59.
• W.W. Rukshan, M.R. Perera, K.W.S. Ariyawansa and N.P.G. Pushpith. (2018). Production of natural oyster sauce by utilizing Indian oyster (Crassostrea madrasensis). Proceedings of the National Aquatic Resources Research and Development Agency, pp. 64.
• W.W. Rukshan, M.R. Perera, K.W.S. Ariyawansa and N.P.G. Pushpith. (2018). Production of natural oyster sauce by utilizing Indian oyster (Crassostrea madrasensis). Proceedings of the National Aquatic Resources Research and Development Agency, pp. 64.
• A.P.A. Madushani, S. Ariyawansa and C.V.L. Jayasinghe (2017). Validating Torry meter by chemical, microbiological and organoleptic methods using Katsuwonus pelamis, Decapterus russelli and Lethrines nebulosus. Undergraduate Research Symposium. Wayamba University of Sri Lanka. pp. 70.
• K.W. S. Ariyawansa, S. Gallage, P. Ginigaddarage, K. Hettiarachchi, G. P.Roshan, C. Madagedara and H. M. P. Kithsiri. (2017). Assessment of microbiological quality of oysters (Crassostrea madrasensis) harvested in different location of Puttalam Lagoon in Sri Lanka. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 55.
• H.G.P. Sameera, K.W.S. Ariyawansa and B.E.P. Mendis. (2017). Production of silage from fish waste using whey as the inoculum. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 53.
• Mekhala Ratnayake, P. H. Ginigaddarage, G. J. GanegamaArachchi, K. W. S. Ariyawansa, Indira Wickramasinghe, K. S. Hettiarachchi, S. Abhayarathne, G. P. Roshan, G. Gunasekare and S. Gallage. (2017). Investigation of pathogenic bacterial contamination of fish handled in Mannar, Sri Lanka. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 56.
• T.H. T. Madhushani Thushi, G. J. Ganegama Arachchi, P. H. Ginigaddarage, K. W. S. Ariyawansa, Indira Wickramasinghe, K. S. Hettiarachchi, S. Abhayarathne, G. P. Roshan, G. Gunasekare and Fathima Nizreena. (2017). Quality assessment of Decapterus russelli (Indian scad) fish harvested by multi – day boats in Kudawella and Puranawella in Sri Lanka. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 59.
• K.W. S. Ariyawansa, D. S. Ariyarathne, M. J. Paththuwe Arachchi, G. S. Chathurika, Mudhitha SenerathYapa and Chathuri Yatawara. (2017). Isolation and characterization of collagen from yellow fin tuna (Thunnus albacares) waste. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 60.
• P.G. Madusha Dilrukshi, G. J. Ganegama Arachchi, P. H. Ginigaddarage, K. W. S. Ariyawansa, Indira Wickramasinghe, K. S. Hettiarachchi, S. Abhayarathne and Ruchitha Perera. (2017). Quality assessment of imported fish retailed in Sri Lanka. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 61.
• G.L.A. Subhashini, K.W.S. Ariyawansa, P.H.Ginigaddarage, K.S. Hettiarachchi and C.N. Walpita. (2016). Microbial Safety of Oysters (Crassostrea madrasensis) Harvested from Kalpitiya Lagoon in Sri Lanka. Proceedings of 3rd International Conference of Agricultural Sciences-Ag Insight 2016. Sabaragamuwa University of Sri Lanka. pp. 154-155.
• S. Ariyawansa, P. Ginigaddarage, K. Jinadasa, J.M.Chandrika, G. Ganegama Arachchi and S. Ariyarathne. (2015). Assessment of microbiological and bio-chemical quality of fish in a supply chain in Negombo, Sri Lanka. Proceedings of the 5th international conference of Sabaragamuwa university of Sri Lanka. pp.16.
• K.W.S Ariyawansa, P.H Ginigaddarage, K.S. Hettiarachchi, M. Seneviratne and G.P Roshan. (2015). Assessment of microbiological quality of exported seafood from Sri Lanka. World Seafood Congress. 5th-10th September 2015.Grimsby United Kingdom.
• Sujeewa Ariyawansa, Pavithra Ginigaddarage, Kolitha Jinadasa, Kumudu Hettiarachchi and Palitha Kithsiri. (2015). Assessment of safety of oysters (Crassostrea madrasensis) harvested from Gangewadiya and Kandakuliya in Puttalam District. 2nd International conference on fisheries and aquaculture, ICFA – 2015. pp. 18.
• I.H.W. Surendra, P. Ginigaddarage, B.K.K.K. Jinadasa, K.W.S. Ariyawansa and E.M.R.K.B. Edirisinghe. (2015). A comparative study on quality of imported dried fish varieties in Sri Lanka. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 119-122.
• W.K.S.R. Weththewa, P. Ginigaddarage, B.K.K.K.Jinadasa, K.W.S. Ariyawansa and V.P.N.Prasadi. (2014). Evaluation of microbiological and chemical characteristics of selected dried species available at Sri Lankan market.Undergraduate Research Symposium 2013, University of Wayamba. pp. 39.
• E.G.T.P. Wijesinghe , K.W.S. Ariyawansa, P.H. Ginigaddarage and S.P.S.D. Senadheera (2014). Dynamics of total bacterial flora in selected food fish along the distribution chain from Negombo fishery harbor. Proceedings of the 34th annual sessions of the institute of biology. pp. 56.
• K.W.S. Ariyawansa, P.H. Ginigaddarage and S. Senadheera (2014). Preliminary assessment of microbiological safety in fish retailed in Gampaha district. Proceedings of the 34th annual sessions of the institute of biology. pp. 76.
• I.Ranasinghe, P.Ginigaddarage, S. Ariyawansa, and S. Senadheera (2014). A comparative study on microbiological and chemical quality of dried fish retailed in Sri Lanka. Proceedings of the symposium of Sri Lanka council for Agricultural Research Policy. pp.122.
• S.Ariyawansa, P. Ginigaddarage and K. Hettiarachchi. (2013). An assessment of the effectiveness of cleaning and sanitation practices adopted by five fish processing establishments in Sri Lanka. 4th International symposium Sabaragamuwa University of Sri Lanka. 2013. pp. 3.
• H.P.E. De Zoysa, P.H. Ginigaddarage, K.W.S. Ariyawansa and I. Wickramasinghe. (2013). Sources of faecal contamination of fresh fish harvested by multi-day boats. 4th International symposium Sabaragamuwa University of Sri Lanka. pp. 8.
• P.H. Ginigaddarage, K.W.S. Ariyawansa, M. Senavirathne, J.M.Chandrika, K.S. Hettiarachchi, S. Abhayarathne and G.P. Roshan. (2013). Quality assessment of fish sold in retail markets of Western province, Sri Lanka. Proceedings of the National Aquatic Resources Research and Development Agency, Scientific Sessions 2013. pp.53.
• S.S.G. Silva, S. Ariyawansa, S.B.N. Ahamed, K.A.P. Manamperi and C.V.L. Jayasinghe. (2013). Effect of legume flour extenders on keeping quality of Tilapia fish nuggets. Proceedings of the National Aquatic Resources Research and Development Agency, pp.51.
• A.M.Gammanpila, S.P.S.D. Senadeera, M.P. Kumara and K.W.S. Ariyawansa. (2013). Preliminary quality evaluation of Maldive fish: Comparison between Southern Sri Lanka and imported products. Proceedings of the National Aquatic Resources Research and Development Agency, pp.57.
• Sujeewa Ariyawansa (2013). Utilization of fish waste in Sri Lanka: An overview. An International conference on utilization of waste/rest materials and by-products in the fish processing industry: opportunities and challenges. 9^th-10^th December 2013, NhaTrang Vietnam.
• H.M.L.G.M.P. Herath, P.H. Ginigaddarage, K.W.S. Ariyawansa and R.G.S. Wijesekara. (2013). Microbiological quality fish in retail outlets of Ceylon Fisheries Corporation in the Colombo District. Undergraduate Research Symposium 12th December 2013. pp.3.
• P.H. Ginigaddarage, K.W.S. Ariyawansa and K.S. Hettiarachchi. (2012) Sources of bacterial contamination of fresh fish harvested by multi-day boats. Proceedings of the National Aquatic Resources Research and Development Agency, pp.38.
• D.S. Ariyarathna, A.M.S.C. Athauda, S. Ariyawansa and N. Rajapaksha (2012). Evaluation of shelf life of hot smoked herrings (Amblygaster sirm) under different packaging and storage conditions. Proceedings of the National Aquatic Resources Research and Development Agency, pp. 43
• .J.Menaka, P.H. Ginigaddarage, K.W.S. Ariyawansa and C.V.L Jayasinge (2011). Detection of histamine forming Enterobacteriaceae bacteria in fish using polymerase chain reaction. Proceedings of the 7th annual sessions of the Sri Lanka Association for Fisheries and Aquatic Resources. pp. 29.
• M.Jayakumar, K.W.S. Ariyawansa, P.H. Ginigaddarage and M.S.W. de Silva (2010). Identification of Vibrio parahaemolyticus in Shrimps (Penaeus monodon) using polymerase chain reaction. 3rd International symposium of Sabaragamuwa University, Sri Lanka. pp. 55.
• E.S.S.J Fernando, P.H. Ginigaddarage, K.W.S. Ariyawansa and I. Wickramasinghe (2010). Some effects of gutting and evisceration on quality and shelf-life of Skipjack tuna (Katsuwonas pelamis).  3^rd International symposium of Sabaragamuwa University, Sri Lanka.
• K.K.M.M Wimalakeerthi, P.H. Ginigaddarage, K.W.S. Ariyawansa, G.J. Ganegama Arachchi and S.C. Jayamanne (2010). Investigation on the effect of addition of sugar into ice on TVB-N content, microbial growth, pH and histamine formation during ice storage of Skipjack Tuna in boats. Symposium of Uva Wellassa University, Sri Lanka. pp. 31.
• Norrakiah Abdullah Sani, K.W. Sujeewa Ariyawansa and Laina Munid (2007). Prevalence of Toxic Genes of Vibrio parahaemolyticus in Shrimps (Penaeus monodon) and Culture Environment. Proceedings of the 29th Symposium of the Malaysian Society for Microbiology, Kuala Terengganu, 24th -26thNovember 2007.
• Ariyawansa, K.W.S., Abdullah Sani, N. and Babji, A.S. (2007). Most recoverable methods for quantitative detection of Vibrio parahaemolyticus in shrimps (penaeus monodon). Proceedings of the 10th ASEAN Food Conference, Kuala Lumpur, Malaysia, 21st -23rd August 2007. pp.1-4.
• Laina Munid, Norrakiah Abdullah Sani, Sujeewa Ariyawansa and Rahimah Mohd Ariffin (2006). Detection of Vibrio parahaemolyticus virulent strains from black tiger prawn and its environment. 8th National (Malaysian) Symposium on Biology. 5th-6th December 2006. pp.1-7.
• Kottiya Wattege Sujeewa Ariyawansa, Norrakiah Abdullah Sani and Abdul Salam Babji. (2006).  Detection and survival of freeze stressed Vibrio parahaemolyticusin shrimps (Penaeus monodon).  Proceedings of the 5^th Food Science and Technology seminar Malaysia. 2^nd -3^rd September 2006.
• K.W. Sujeewa Ariyawansa, Laina Munid, Norrakiah Abdullah Sani and Abdul Salam Babji. (2006). Occurrence of toxic genes in Vibrio parahaemolyticusisolates from shrimp (Penaeus monodon) culture environment in Malaysia.  Proceedings of the 4th seminar UKM-UNRI. 1st-2nd August 2006. pp. 576-580.
• K.W.S. Ariyawansa, Norrakiah Abdullah Sani and Abdul Salam Babji.   (2006). Detection, growth and survival of Vibrio parahaemolyticus in shrimps (Penaeus monodon). Proceedings of the 6th postgraduate Colloquium. UKM Malaysia 12th-13th July 2006. pp. 232-234.
• K.W. Sujeewa Ariyawansa, Norrakiah Abdullah Sani and Abdul Salam   Babji. (2005).  Comparison of the efficiency of methods for enumerating Vibrio parahaemolyticus in shrimps.  4^th Food Science and Technology seminar Malaysia. 23^rd July 2005.
• Norrakiah Abdullah Sani, K.W. Sujeewa Ariyawansa and Abdul Salam Babji. (2005). Comparison of the efficiency of methods for enumerating Vibrio parahaemolyticus in black tiger shrimps. Expo Research and Innovation UKM, Malaysia. 14th -16th July 2005. pp. 167-168.
• K.W.S. Ariyawansa, U. Samarajeewa and S.P Jayasooriya (2004).   Microbiological quality of shrimp (Penaeus monodon) in relation to physico-chemical factors in water sources.  7th Asian Fisheries Forum, Malaysia.  pp. 162.
• B.M.K.Waduressa, N. De Silva and K.W.S. Ariyawansa (2004).  Application of Quality Index Method in determining the shelf life of skipjack tuna (Katsuwonus pelamis). 7^th Asian Fisheries Forum, Malaysia.
• W.Thushani, K.W.S. Ariyawansa and P.C. Arampath (2002). Recovering ability of freeze-stressed Salmonella typhimurium and Staphylococcus aureus cells in frozen shrimp. Proceedings of 58th annual session of Sri Lanka Association for the Advancement of Science. pp. 207.
• K.I. Nilmini, K.W.S. Ariyawansa and T.S.G. Fonseka (2002).  Evaluation of microbiological quality of selected marine fish species from fish stalls in seven districts.  Proceedings of second Agricultural Research Symposium.  pp.33-41.
• K.W.S. Ariyawansa, D.N. Wijendra and S.P.S.D. Senadeera (2002). Application of Quality Index Method to determine the shelf life of Frigate tuna (Auxis thazard).  Proceedings of the First Scientific Sessions on Post Harvest Technology: National Aquatic Resources Research & Development Agency. pp. 4.
• K.W.S. Ariyawansa and S. Arason (2001).  The evaluation of functional properties of fish meal.  Proceedings of 7th annual session of Sri Lanka Association for Fisheries and Aquatic Resources. pp. 2.
• K.W.S. Ariyawansa, J.M.P.K. Jayasinghe, N.D. Wijendra and K.S. Hettiarachchi (1999).  Antibiotic sensitivity of bacterial isolates from Penaeus monodon cultured in semi-intensive systems.  Proceedings of 5th annual session of Sri Lanka Association for Fisheries and Aquatic Resources. pp.22.
• K.W.S. Ariyawansa and J.M.P.K. Jayasinghe (1999). Application of a HACCP plan for the evaluation of microbiological quality of cultured shrimps (Penaeus monodon) at processing.  Proceedings of 55th annual session of Sri Lanka Association for the Advancement of Science. pp.37.
• R.S.V. Kumari, D.G.N.G. Wijesinghe, K.W.S. Ariyawansa and J.M.P.K. Jayasinghe (1999).  Identification of some critical control points in the shrimp industry for the application of HACCP.  Proceedings of 5^th annual session of Sri Lanka Association for Fisheries and Aquatic Resources.
• K.W.S. Ariyawansa, J.M.P.K. Jayasinghe and K. Hettiarachchi (1998).  Bacterial profiles in shrimp culture systems affected by white spot epizootic.  Proceedings of 4th annual session of Sri Lanka Association of Fisheries and Aquatic Resources. pp.1.
• K.W.S. Ariyawansa, J.M.P.K. Jayasinghe and K.S. Hettiarachchi (1998).  Bacterial profiles associated with semi-intensive shrimp farming: A case study of farms bordering Dutch canal.  Proceedings of 1st annual convention and scientific sessions of the Sri Lanka Association of Animal production. pp. 2.
• K.W.S. Ariyawansa and V. Jayaweera (1993).  The survival of Vibrio parahaemolyticus at freezing temperature and its enumeration using non selective media.  Proceedings of 49^th annual session of Sri Lanka Association for the Advancement of Science. pp.96

Other Memberships, Associations, Conferences

• Member, National Advisory Committee on combating antimicrobial resistance, ministry of health, Sri Lanka.
• Member of Fisheries sector of Codex Committee, Sri Lanka.
• Member of the Advisory Committee on Seafood sector, Export Development Board, Sri Lanka.
• External faculty board member of the faculty of industrial and vocational technology,University of Vocational Technology.
• Member, subcommittee on research allowance of Sri Lanka Council for Agricultural Research Policy (SLCARP).