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Science forum Day 2 - Manjurul - Adapting to climate change
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Science forum Day 2 - Manjurul - Adapting to climate change

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  • 1. Policy Brief on Adapting Aquaculture to Climate Change for PoorFarming Households in Coastal Bangladesh
    Manjurul Karim, William J Collis, Michael Phillips, Neil Andrew, Arif Azad and Golam Hossain
  • 2. National policies linked with climate change
    Existing policies that address the issue of climate change: 
    • National Water Policy (NWP), 1999
    • 3. National Agriculture Policy, 1999
    • 4. National Water Management Plan (NWMP), 2001
    • 5. Coastal Zone Policy, 2005
    • 6. Coastal Development Strategy, 2006
    • 7. Draft National Disaster Management Policy, 2008
    National policies do not explicitly address climate change issues-
    • Bangladesh Environmental Policy, 1992
    • 8. National Forest Policy, 1994
    • 9. National Environmental Management Action Plan, 1995
    • 10. National Energy Policy, 1996
    • 11. Fisheries Policy, 1998
    • 12. National Health Policy, 2000
    • 13. National Land Use Policy, 2001 and
    • 14. National Food Policy, 2006
  • Projected climate change impacts
    Sea level rise (30-80 cm increase by 2050) and increased flooding
    Increased vulnerability to cyclone and storm surges (5-10%) increase by 2050
    Increased salinity (soil and water)
    • Increased moisture stress > leading to increased draught
    • 15. Greater temperature extremes (1.4 oC by 2050)
    • 16. Greater monsoon precipitation (20-30% increase by 2050)
  • Projected climate change impacts
    Impacts (eg. water temperature increase by 2oC)
    ++:
    10% increase of precipitation river runoff increase by 15%
    - increaseflood plain area, feeding ground and productivity
    _ _:
    a) destroy aquaculture infrastructure > reduce closed water production
    b) may stimulate 300-500% incretion of growth of microphytes -
    - decrease water productivity
    - reduces fish habitat and dissolved oxygen supply
  • 17. Lessons fromWorldFish projects (CAARP, 2010)
    Preparedness and adaptation measures:
    • Rising pond dikes and setting nylon net
    • 18. Fish nurseries, stocking of large size fingerlings, fast
    growing species
    • 1 million carp fingerlings (by weight 7.4 MT), value
    US$ 24,074 produced by 126 households within ~ 3.5
    months
    • Well planned harvesting and selling of fish and vegetables
  • Lessons from WorldFish projects
    • 77% of households reinvested in aquaculture after
    the disaster
    • Stocking larger size fingerling brought 30% higher
    production and 36% higher profit margins within 6-
    8 months (CAARP, 2010)
    • Fish consumption: 8 -19 kg/person/yr (~80% increase)
    • 19. Other promising adaptive aquaculture
    technologies: nutrient dense small
    fish, rice-fish and cage aquaculture
    (Adivashi, 2009)
  • 20. Policy recommendations
    Inclusion of aquaculture in national development planning
    Capacity building, information accessibility and awareness raising on climate change impact prediction and adaptation
    Promotion and adaptation of aquaculture technologies to the realities of climate change
    Increasing focus on technological innovation towards development of sustainable Aquatic-Agricultural Systems (AAS)
    More priority on small scale aquaculture (>10 million ponds)
    Develop measures to mitigate the effects of climate change on livelihoods and aquaculture
    Flexible water storage options and adaptation to climate change
    Mobilize, develop and empowering community based organizations
  • 21. Conclusion
    • Adapting aquaculture to climate change ?
    Institutionalization and mainstreaming climate change adaptation interventions is needed to :
    • ensure medium and long-term sustainability
    • 22. save millions of vulnerable coastal livelihoods
    • 23. make millions of other Bangladeshi people food secure
  • 9
    THANK YOU

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