Summary of Abstract Submission

Abstract Submission No. IO50-04-0026PresentationPoster


V. Ranga Rao*1, V. Damodara Rao1, D. Kumaresan1

1 ICMAM-PD, NOT Campus, Pallikaranai, Chennai 600100, India


Inter-disciplinary research on Indian Coastal Ecosystems - some case studies in view of natural and anthropogenic influences V. Ranga Rao, V. Damodara Rao and D. Kumaresan ICMAM-PD, NIOT Campus, Pallikaranai, Chennai 600 100 Corresponding author email: The coastal ecosystem including the shelf waters, estuarine region and extending upto river head is usually dynamic where complicated interactions of land-ocean-atmospheric processes takes place. It is the region where most of the disasters commonly occur due to natural and anthropogenic influences and ultimately affecting the coastal dwellers. Most of the land based domestic and industrial sewage influence the ecosystem character in this zone. Various environmental problems such as the decline of fish yields, fish mortality, harmful algal blooms, etc are more common in these areas due to variation in water quality associated with natural (global/ seasonal climate change) and anthropogenic influences (domestic & industrial sewage derived from land). In order to address these problems and to safe guard the ecosystem character of these coastal systems of India, an integrated study involving physical oceanographers, biologists, chemists, geologists, together with remote sensing scientists and mathematical modelers is essential. ICMAM-PD has been doing this kind of ecosystem modeling studies in 10th and 11th five year plans especially for semi enclosed coastal bodies such as 1) Chilika and Coringa, on the east coast and 2) Cochin backwaters on the west coast of India. Extensive data on upland river discharge, tidal currents, water quality parameters such as temperature, salinity, pH etc, nutrient loads such as nitrite, nitrate, oxygen, phosphate, silicate etc, biological parameters such as phyto and zoo plankton, chlorophyll and primary production etc have been studied. Based on the field data and model simulations, the ecosystem status of these semi enclosed coastal systems have been identified in view of management of biological resources of these coastal water bodies. Based on the experience gained and as an expansion of the previous works, ICMAM-PD, Ministry of Earth Sciences, Chennai is implementing a new challenging project ┐Ecosystem modeling for SW coast┐ in the 12th five year plan for the coast from Goa to Kanyakumari which includes number of estuaries/ inlets/ lagoons/ backwaters etc. Some of the results obtained from these studies are presented in this paper. A critical review on status of ecosystem modeling, challenges encountered and future research needed is discussed and presented.