WA8 Global Perspectives: Pesticide Risk Assessment in Developing Countries
A105 & A106
8:00 AM - 12:00 PM, Wednesday
() An approach to assess, the effects of pesticides on multiuse aquatic systems in Sri Lanka.
Perera, M.W.P1, 2, 3, Soares, A.M.V.M. 2, Little, D.C.7, Kodithuwakku, S.S.1, Sureshkumar, N.3, Van den Brink, P.J.4, Yakupitiyage, A.5, Satapornvanit, K.5, 6, 7, Wickramarachchi, W.D.N1, 3, Kumara, M.M.S.P.1, 3, 1 University of Peradeniya, Peradeniya, Kandy, Sri Lanka2 University of Aveiro, Aveiro, Aveiro, Portugal3 National Aquatic Resources Research and Development Agency, Colombo, Western, Sri Lanka7 University of Stirling, Stirling, Stirling, United Kingdom4 Alterra Green World Research, Wageningen, Wageningen, The Netherlands5 Asian Institute of Technology, Bangkok, Bangkok, Thailand6 Kasetsart University, Bangkok, Bangkok, Thailand
ABSTRACT- Agro-pesticides play a vital role in crop production systems in Sri Lanka. Frequent pesticide application can be seen most of the agro-ecosystems in order to prevent and control of pests and diseases. Intensive pesticide application can create risks to multiuse aquatic systems hence communities in the neighboring environments. This study was aimed to develop bioassays to investigate prevailing risk to the aquatic eco-systems. Locally available Oreochromis niloticus (Tilapia) and Cladocera (Moina) were used to develop Standard Operating Protocols (SOPs) for the deployment of bioassays. Yolk utilization rate of Tilapia yolk sac fries and post exposure feeding rate (using heat killed yeast as feeding material) of Moina were used as end points. Developed approach i.e. deployment of bioassays can be used to assess effects of pesticides and environmental risks of multiuse aquatic systems associated with agricultural areas. Ultimate objective of the study is to narrow down, proposed approach, to be used at the grassroots level.
Key words: Bioassays, Agro-pesticides, Tilapia, Moina