Summary of Abstract Submission

Abstract Submission No. IO50-08-0007PresentationOral


Sanitha K Sivadas*1

1 CSIR-National Institute of Oceanography, India


India¿s geological history is of great interest to biogeographers and paleontologists as its biological connectivity with the other Indian Ocean landmasses has been often confounding. Although considerable biogeographic studies have been done on terrestrial system, marine research has lagged behind. Moreover, such studies are becoming important tools in ecosystem conservation. Therefore, published literature on the marine biogeography of India was reviewed. Fifty years of International Indian Ocean Expedition and modern-day programme have given considerable insight into the marine biodiversity patterns of India. However, there is little work done to understand large-scale pattern. A total of 50 papers have been published related to marine biogeography of India. These were grouped into three categories based on their approach i.e descriptive (64%) genetic (32%) and larval dispersal (4%). Most studies concluded an east-west difference in the marine community. Since these studies have selected few locations on either coast and are descriptive, they provide little understanding of biogeography patterns. Further, biogeography studies of offshore region are rare. Potential barriers include coastal current, upwelling, Oxygen Minimum Zone (OMZ), temperature, salinity and sediment differences, Pamban Pass and Ramsethu, macrto-tidal Gulf of Kachchh region and river discharge. The study highlights the need for cross-taxon comparison using integrated approach to understand biogeography patterns. Defining biodiversity pattern at regional scale help to effectively focus and improve conservation plans.