e1c6f733-33f0-4318-995c-9f6e34fb90ed English UTF-8 Dataset Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Point of contact 2020-12-10 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Benthic Fauna of the Antarctic Ocean - Quantitative Aspects 2020-08-21 Creation Document digital Quantitative studies on the macro and meiobenthos of the less explored (between 11 and 41?E longitude) part of the IndianOcean Sector of Antarctic Ocean, revealed the existence of.rich fauna and high standing crop in the depth range of 200 to 3600 m.Population density contributed by 12 meiofaunal and 3 macrofaunal taxa, was of a high magnitude and it varied from 1110 to 29774 ( = 6780 m-2) and from. 118 to 354 ( = 221 m-2) for meio and macrofauna respectively. Nematodes {64.20%) andpolychaetes (53.33%) were dominant components of meio and macrofauna, respectively. Meiofauna was more abundant in sandysediments than in clayey bottom deposits and the richness of fauna showed positive correlation with increasing depth. In contrast,the macrofauna showed decreasing abundance with increasing depth. Ratio of macro to meiofauna in the total population was 1 to 53. In recent years some information on the quantitative distribution of fauna and benthic production indifferent sectors or regions of Antarctic Seas is available (Broch 1961, Belyaev 1964, Holmes 1964,Tressler 1964, Vinogradova 1964, Gallardo and Castillo 1970, Lowry 1977, Richardson and Hedgepeth1977, Oliver 1978 and Everitt, Poore and Pickard 1981). Most of the published reports, relate to regionsbeyond 40? E longitude and mostly covers the Atlantic and Pacific Ocean Sectors, whereas the benthic investigations during the First Indian Antarctic Expedition of 1981-82, are essentially for the region between 10 and 41?E longitude ? rather an unexplored part of the Indian Ocean Sector in Antarctic,(Ushakov 1964) and hence the observations presented here are meant to fill the existing gaps in the available information on the Antarctic benthos. Completed Dr. A H Parulekar National Centre for Polar and Ocean Research (NCPOR) 08322525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND ictd@ncpor.res.in Principal investigator Earth Science-Biosphere Theme Dakshin Gangotri Antarctic Place Benthic Fauna of the Antarctic Ocean - Quantitative Aspects Project English biota 20.0 140.0 -90.0 30.0 1981-01-01 1982-12-31 TableDigital Biosphere unknown Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Distributor http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF-55877995&userType=user&freeTextValue=Benthic+Fauna+of+the+Antarctic+Ocean+-+Quantitative+Aspects