Climate change impacts: Reflections and upshots on Indian marine ecosystem

Shyam, S Salim and Remya, R (2017) Climate change impacts: Reflections and upshots on Indian marine ecosystem. In: Winter School on Structure and Function of the Marine Ecosystem : Fisheries, 1-21 December 2017, Kochi.

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Abstract

Intergovernmental Panel on Climate Change (IPCC) defines Climate change as “A change in the state of the climate that can be identified by changes in the mean and/or the variability of its properties and that persists for an extended period, typically decades or longer. Climate change may be due to natural internal processes or external forcings, or to persistent anthropogenic changes in the composition of the atmosphere or in land use”. In its Fourth Assessment Report, IPCC projects that, without further action to reduce greenhouse gas emissions, the global average surface temperature is likely to rise by a further 1.8 - 4.0°C this century, and by up to 6.4°C in the worst case scenario. Even the lower end of this range would take the temperature increase since pre-industrial times above 2°C – the threshold beyond which irreversible and possibly catastrophic changes become far more likely. The present paper elucidates the impact of climate change on marine ecosystems, fish and fisheries and suggests various vulnerability assessment methods and adaptation options to cope up with climate change. The paper also deal with the research efforts and linkages attempted in developing a climate informed fisher society.

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