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Implications, adaptations & policies for food security and livelihoods. Presented by Johann Bell. Authors.
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Implications, adaptations & policies for food security and livelihoods Presented by Johann Bell
Authors This presentation is based on Chapters 12 and 13 in the book Vulnerability of Tropical Pacific Fisheries and Aquaculture to Climate Change, edited by JD Bell, JE Johnson and AJ Hobday and published by SPC in 2011.
Outline • Factors affecting availability of fish for food • Reef area, population growth, climate change • Implications for food security • Relative importance of population growth and climate change • Win-win adaptations • Supporting policies
Provide 35 kg of fish per person per year • Maintain traditional fish consumption where it is >35 kg • Fiji • 42 kg of fish per person per year Plans to use fish for food security
Coastal fisheries / coral reefs, mangroves and sea grasses Where does most fish come from? Photos: Eric Clua, Gary Bell, Christophe Launay
The problem! • Sustainable catches from most reefs are unknown Solution: use median estimate of 3 tonnes per km2per year
Annual coastal fish production (mt) • Population in 2010 was 848,000 • ~ 40 kg of fish per person per year
Factors affecting availability of fish • Population growth Source: SPC Statistics for Development Programme
Availability of reef fish per person (kg) Fiji 50 Effects of population growth on availability of fish per person 40 35 kg 3 9 30 20 35 32 26 10 0 2035 2050 2100 Year
Effects of climate change Today 2035(-2 to -5%) 2050 (-20%) 2100 (-20 to -50%)
Fiji Availability of reef fish per capita (kg) 50 Additional effects of climate change 40 35 kg 3 7 9 30 15 20 35 34 32 28 26 10 20 0 2035 2050 2100 Year Additional effects of climate change Effects of population growth
How best to fill the gap? Fish needed for food security tonnes (x1000) Coastal fisheries Freshwater fisheries Pond aquaculture Tuna
Adaptations and policies • Minimise the gap to be filled!
Adaptation decision framework Addresses climate change Long-term Loss Long-term Gain Near-term Loss Addresses present drivers Win-Lose Near-term Gain After Grafton (2010)
Win-win adaptations Manage and restore vegetation cover in catchments L-L L-W W-L W-W Improves resilience of coral reef, mangrove and seagrass habitats
Win-win adaptations Sustain production of fish stocks L-L L-W Maintaining spawning adults will help ensure replenishment and build resilience of key species W-L W-W
Win-win adaptations Increase access to tuna with anchored inshore Fish Aggregating Devices (FADs) L-L L-W W-L W-W
Win-win adaptations Improve post-harvest methods L-L L-W W-L W-W Photo: Jocelyn Carlin
Win-win adaptations Develop pond aquaculture in rural and peri-urban areas L-L L-W W-L W-W Photo: Ben Ponia
Win-win adaptations Develop coastal fisheries for small pelagic species ? L-L L-W W-L W-W Photo: Nathalie Behring
Other adaptations Provide for landward migration of coastal fish habitats L-L L-W W-L W-W
Other adaptations Reduce and diversify catches of demersal fish L-L L-W W-L W-W Greater focus on herbivorous fish
Other adaptations Allow for expansion of freshwater fish habitats L-L L-W W-L W-W
Other adaptations Modify locations and infrastructure for aquaculture L-L L-W W-L W-W
Suggested supporting policies • Strengthen governance of agriculture, forestry and mining practices to prevent soil loss and pollution, to safeguard fish habitats and water quality • Minimise barriers to migration of coastal and freshwater habitats • Promote mangrove replanting programmes • Apply ‘primary fisheries management’ to coastal and freshwater stocks to maintain their potential for replenishment
Suggested supporting policies • Restrict export of demersal fish to retain them for national food security • Increase access to tuna for the food security by reducing national allocations to industrial fleets • Capitalise on opportunities for freshwater pond aquaculture • Limit farming of Nile tilapia to catchments where tilapia species are already established, or there is a shortage of fish
Key investments • Surveys of best sites for installing inshore FADs • Programmes to install and maintain FADs • Identify prime locations for peri-urban and rural pond aquaculture • Hatcheries and networks to deliver juveniles • Evaluate merits of micro-credit schemes to develop fisheries around FADs; expand pond aquaculture; and scale-up post-harvest processing
Conclusions • Win-win adaptations are available to reduce risks and capitalise on opportunities • Supporting policies and investments are needed • Integrate adaptations and policies and investments into national strategies and action plans for climate change, including community-based actions supported by partners