Seasonal Variation in Particulate Organic Matter and its Constituent Fractions under the Ice covered sea near the Shelf, Antarctica.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF1368510328&userType=user&freeTextValue=Seasonal+Variation+in+Particulate+Organic+Matter+and+its+Constituent+Fractions+under+the+Ice+covered+sea+near+the+Shelf%2C+Antarctica.

Brief Description (Abstract):

Particulate organic matter (POM) collected at a single station in the shelf waters of Princess Astrid coast (70?S : 11?E), Antarctica from May to December 1986 was analyzed for chl a, POC and other constituent fractions at three discrete depths. Chl a concentration at all the 3 depths varied from 0.026 to 0.253 µgl 1 showing minimum values during August September. POC values varied from 280 to 1058 µgl1 while its constituent fractions such as particulate carbohydrates (PCHO), particulate proteins (PP) and particulate lipids (PL) varied from 14 to 193, 6 to 200 and 8 to 174 µgl 1 , respectively. Significant correlation existed between POC and chl a, PP and PL at 10m depth. This was in contrast to PCHO and chl a. The components studied showed seasonal variation suggesting that the sea ice microalgae and planktonic organisms contribute substantially to particulate organic carbon.

Status: Completed

Purpose: Very little information is available on the biology of ice covered sea around the Antarctic continent (Bunt, i960 Littlepage, 1965 Wakatsuchi, 1982). In spite of this the Antarctic Ocean is considered most productive oceans in the world (Nienhuis, 1981) not only from the chlorophyll data but also from the compounds present in the water column (Bolter and Dawson, 1982). These compounds are of primary importance to maintain chemical and biological processes in the oceans (Leventer and Dunbar, 1985).

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Land Surface,

Place/Location(s): Dakshin Gangotri, Antarctic,

Project: Seasonal Variation in Particulate Organic Matter and its Constituent Fractions under the Ice covered sea near the Shelf,

Topic Category(s): GeoScientific Information,

Date(s): 2020-09-07 (Creation),

Resource Contact(s):
1. Name : Dr. VK Dhargalkar
    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 : 1985-01-01
End Date   : 1986-12-31