Greenhouse gas emissions from aquaculture: a life cycle assessment of three Asian systems
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In order to estimate the possible scale of greenhouse gas emissions in aquaculture in Asia, a study was carried out on three aquaculture systems: Nile tilapia in Bangladesh, Indian major carps in India and striped catfish in Viet Nam. The analysis was intended to improve the understanding of where and how GHG emissions arise in Asian aquaculture, whilst highlighting weaknesses in the currently available data. This results of this study will guide future studies on where to improve the data and o n how to develop cost-effective ways of improving aquaculture performance and reducing emissions. This report highlights the variation within each farming system at every stage of the three Asian aquaculture systems. The report makes some suggestions for methods which potentially could reduce emission intensities related to the farming systems, but applying best practices uniformly on farms and thus increasing efficiencies appear to be major factors for improvement.