Sustainable Marine Resources and Climate change

Suharsono

Research center for oceanography- LIPI.

Jl pasir putih no 1. Ancol timur Jakarta utara. Indonesia.

Director-rco@indo.net.id

Indonesian seas are not only the centre of the mega biodiversity hotspots but also very significant for the livelihoods and cultural systems, where one third of Indonesian people lives in the coastal area and 10 % of them depend on the sustainable use of marine resources. Marine resources and ecosystem in Indonesia has been experienced widespread changed in population and communities structure, due to a combination of pressures, including destructive fishing activities, over exploitation, pollution from sea and land based activities. Climate changes caused coral bleaching due increasing water temperature followed by other outbreaks of diseases and other biota such as HAB and crown of thorns. The destruction of ecosystem and reduction of marine resources will be a real threat to the people whose depend on coastal resources for food and incomes. It is very important to study on the ecosystem health in order to guaranty the sustainable of marine resources. Climate change can be detected with the help of paleo-proxies in long life biota that deposit thin layer of hard skeleton. Skelton in corals have long been considered a valuable tool for reconstructing past environmental and climate variability. Skelton record are also reflect growth response to sea surface temperature variability and change in concentration of the carbonate ion or pH. Massive corals will be drill and cut into slice for analysis of banding patterns in order to reconstruct climate variability in the last decade. Stable oxygen isotope and Sr/Ca analyses on the samples will provide time series on the temperatures and precipitation changes, sea water acidification change and can also be used as a reference for changes in biota composition and richness. Working together with experts from different countries on climate change, biodiversity and sustainable marine resources fosters the data base, improving capacity building and producing scientifically credible data on diversity, population dynamic, distribution and stock assessment that will be important for local and national government. The data will contribute to sustainable management of living marine resources in globally important areas of the world in general and especially for Indonesia.