Future scenarios of fish supply and demand for food and nutrition security in Bangladesh: An analysis with the AsiaFish model

Abstract

Bangladesh has made significant progress in social and economic development in recent years, but micronutrient deficiencies and poor dietary diversity remain a significant challenge. This paper developed eight scenarios to explore fish supply-demand futures in Bangladesh using the AsiaFish model, with special emphasis on the role of fish in micronutrient supply to address the nation’s malnutrition and nutrition security challenges. A business-as-usual (BAU) scenario followed historical trends for exogenous variables used in the model. The seven alternative scenarios explored were: the implications of increase productivity of farmed tilapia, pangasius and rohu carp (AS1); productivity changes in hilsa production (AS2); improvements in the quality of feeds (AS3); reduction in the price of plant-based feeds (AS4); disease outbreak in farmed shrimps and prawns (AS5); and climate change impact (AS6) and stagnant capture fisheries (AS7). The BAU scenario indicates that aquaculture growth will be a prominent contribution to increasing total fish supply and demand and fish exports to 2040. Apart from the scenarios that are favourable to aquaculture sector development, other alternative scenarios highlighted the lower growth rate of capture fisheries and aquaculture compared to BAU, resulting in declining in per capita fish consumption, fish exports and nutrient supply from fish as a consequence. Increased availability of aquaculture fish can slightly compensate for the lower growth of capture fisheries in term of their nutrition quality and dietary diversity, particularly for poor consumers. Policies towards sustaining fisheries and a nutrition-sensitive approach to aquaculture is recommended as both capture fisheries and aquaculture are essential for sustaining healthy and nutritious diets in Bangladesh.

Time Series Analysis of Aquaculture and Capture Fish Production and Projection of Future Trend in Bangladesh

“…The growth of aquaculture and faltering capture fisheries has significantly changed developing countries' fisheries and aquaculture systems over the last four decades (Belton & Thilsted, 2014;Tran et al, 2020). In addition, the growth of global aquaculture has positively contributed to global food and nutrition security, boosting world fish supplies and mitigating fish output reduction from capture fisheries to meet the increasing demand for fish (Tran et al, 2022). The fishery sector in Bangladesh plays an increasingly significant role in the national economy through foreign exchange earnings, animal-sourced protein and food supply, food security, employment opportunities, and supporting overall socio-economic development and sustainable livelihoods (Islam & Shamsuddoha, 2018;Rashid & Zhang, 2019).In 2018, Bangladesh ranked one of the largest fish producers in the world, 3rd after China and India in inland capture fishery production, 5th in terms of world aquaculture production after China, India, Indonesia, and Vietnam (FAO, 2020), and became self-sufficient in fish production (FRSS, 2018).…”

“…It provides a wide range of micronutrients, protein, and fatty acids essential for the human brain, bone, and nervous system development, growth, cognition, and disease prevention (Ezzati & Riboli, 2013;Nestel et al, 2015;Tacon & Metian, 2013). Several species from inland capture, typically consumed whole with head and bones, are rich in essential fatty acids and could contribute more than 25% of the recommended nutrient intakes including iron, zinc, calcium, iodine, vitamin A and vitamin B12, for pregnant and lactating women and infants (Tran et al, 2022).…”