By B Meenakumari
Deputy Director General Fisheries, ICAR
Alterations in fishery distribution and productivity is pointing towards ecosystems changes that is an outcome of global warming. The threat to sustainability of fisheries and aquaculture, consequently can interrupt livelihood practices of local communities.
Global warming is not only confined to the atmosphere; the oceans would get warmer too (expected to rise by 1 to 30 Celsius over next 50 years); acidify, turn saline, and sea levels and currents would change. These are likely to affect fish migrations and habitat, augmenting fish stocks in some places and decreasing them in others. The mean sea level has increased at the rate of 0.705 mm, 1.086 mm and 3.772 mm per year in the Arabian Sea,...