ReCLAIM and SWAMP projects undertaken by CIFOR-ICRAF examine the productivity of fishponds in Serang Minicipality, Banten. The co-exsistence of Nature Reserve dominated by Avicennia marina – habitat of some waterbirds with the ponds has been quite a challenge in finding the win-win solutions. Re-introducing magrove and intesifying aquaculture may improve fish productivity while reducing greenhouse gas emissions by not expanding fishpond, but the appropriate proportion is under scientific scrutiny.