Biotic Features of Selective Surface Water Bodies around Indian Station Maitri in Schirmacher Oasis, Antarctica.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF325054173&userType=user&freeTextValue=Biotic+Features+of+Selective+Surface+Water+Bodies+around+Indian+Station+Maitri+in+Schirmacher+Oasis%2C+Antarctica.

Brief Description (Abstract):

Commensurate to environmental protocol to Antarctic Treaty, monitoring of biota at different water bodies around Indian Station Maitri was carried out in January-February 1994. Studies covered enumeration of individual phytoplankton, zooplankton & meiobenthic organisms; application of Shannon weaver diversity index & similarity index, and evaluation of food web trophic levels & ecological pyramid. Sixteen, 7 and 1 varieties of phytoplankton, zooplankton and meiofauna respectively were recorded in Zub lake. The lake which receives water from nearby glaciers and measures 0.35 sq.km. is the source of water for Maitri. Besides plankton, the lake represented detritus and moss at different trophic levels. Considering producer and first consumers as the two-step trophic structure, ecological pyramid on the basis of biomass has been formulated for Zub lake. Details towards variations of flora and fauna among different water bodies, probable reasons for such variations and ecological efficiency

Status: Completed

Purpose: The continuously increasing interest in, and exploitation of, the natural resources of the Antarctic continent and its surrounding waters by a number of nations, requires a comprehensive knowledge of the Antarctic ecosystem if that ecosystem is to be effectively managed and conserved. Few attempts were made to investigate biota at shallow freshwater lakes in Schirmacher Oasis of Antarctica (Komarek and Ruzicka 1966, Kaup 1988, Ingolc and Parulekar 1993). Although species composition and, to a limited extent, ecology of the biota have been determined in a few studies, quantitative data are still inadequate. In general, Antarctic lakes possess relatively short and simple food chain. Kok and Grobbelaar (1978) stated that the zooplankton occupy the top of the food chain due to the absence of fish in Marion islands lakes. They found a significant correlation between average primary production rates measured by Grobbelaar (1974) and zooplankton biomass in various water bodies.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Sun-Earth Interactions,

Place/Location(s): Schirmacher Oasis, Antarctic,

Project: Biotic Features of Selective Surface Water Bodies around Indian Station Maitri in Schirmacher Oasis,

Topic Category(s): ClimatologyMeteorologyAtmosphere,

Date(s): 2020-09-15 (Creation),

Resource Contact(s):
1. Name : Dr. T K Ghosh
    Role : PrincipalInvestigator
    Phone : 8322525515
    E-Mail : ictd [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Distributor Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : Distributor
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Metadata Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : PointOfContact
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Extent:
Start Date : 1993-01-01
End Date   : 1994-12-31