Primary Productivity, Phytoplankton Standing Crop and Physico-Chemical Characteristics of the Antarctic and Adjacent Central Indian Ocean Waters.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF57376294&userType=user&freeTextValue=Primary+Productivity%2C+Phytoplankton+Standing+Crop+and+Physico-Chemical+Characteristics+of+the+Antarctic+and+Adjacent+Central+Indian+Ocean+Waters.

Alternate Title: Primary Productivity, Phytoplankton Standing Crop and Physico-Chemical Characteristics of the Antarctic and Adjacent Central Indian Ocean Waters.

Brief Description (Abstract):

Primary productivity, phytoplankton pigments and physico-chemical properties were studied in Antarctic waters and adjoining Indian Ocean between 11? and 67?E longitudes from polynya region (60?S) to equator during the austral summer season viz. 4th January to 23rd March, 1990. The higher concentration of dissolved oxygen (11.33 mg L-1) due to photosynthesis was observed. The temperature was low (-2.0?C to 2.1 ?C) in the coastal ice-edge zone. Often, temperature recorded above zero, lowered the salinity from 34.9 to 33.16 x 10-3. Gradual increase of temperature (-0.8 - 29.0?C) and salinity (33.19 - 36.27 x 10-3) and decreasing trend of DO (av. 9.78 - 4.12 mg L-1) from Polynya towards equator showed an ascending and descending order of these properties from high latitude towards low latitude.

Status: Completed

Purpose: The Southern or the Antarctic ocean, with its unusual combination of the environmental condition is reported (E1-Sayed and Taguchi, 1981, Matondkar et al., 1983, Pant, 1986, Naqvi, 1986, Verlencar and Parulekar, 1987, Goes et al., 1988 and Verlencar et al., 1990) to support a fairly enhanced level of phytoplankton biomass and primary productivity. However, the factors responsible for limiting the primary productivity are not well understood. It necessitates to take up the studies on phytoplankton pigments, primary productivity and physico-chemical parameters in different regions of Antarctica and adjoining areas so as to get a better understanding of the food web dynamics and controlling factors in primary productivity.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Oceans,

Place/Location(s): Maitri, Antarctic,

Project: Primary Productivity,

Topic Category(s): Oceans,

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

Resource Contact(s):
1. Name : Dr. M Jiyalal Ram
    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 : 1989-01-01
End Date   : 1990-12-31