Systematic survey and abundance investigations of the microfauna (tardigrades, nematodes and rotifers) in the meltpools of the McMurdo Ice Shelf
Entry ID: K053_1987_1988_NZ_2

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Summary
Abstract: Quantitative examinations of the microfauna associated with the algal felts in small melt pools on the McMurdo Ice Shelf in the vicinity of Bratina Island off the northen tip of Brown Peninsula was conducted. The animal groups studied were Tardigrades, Nematodes and Rotifers. Eight ponds were selected to encompass a wide range of physical and chemical conditions which not represent the variability of ponds on the ice shelf. Therefore, a range of envrionmental conditions that each species could tolerate was determined and the abundance of each animal in pools of vastly different chemistry was compared. Samples for analyses were cores driven through the algal mat and 3-4cm into the underlying sediment. Five replicate samples and water samples were collected from each pond per day between January 17-24, 1988 at the same time each day (2300-2330h). Animals were extracted from the core and abundances counted. The optimal time of extraction, extraction efficiency and the vertical distribution of fauna in ponds was also investigated.

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Link: GET DATA
Description: Please contact the investigator for any information or access to existing data


Geographic Coverage
 N: -78.0167 S: -78.0167  E: 165.5333  W: 165.5333

Temporal Coverage
Start Date: 1988-01-17
Stop Date: 1988-01-24


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > MCMURDO ICE SHELF
CONTINENT > ANTARCTICA > BRATINA ISLAND
GEOGRAPHIC REGION > POLAR


Science Keywords
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES >WATER BEARS (TARDIGRADES)
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES >ROTIFERS
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >BIOMASS DYNAMICS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >COMMUNITY STRUCTURE    [Definition]


ISO Topic Category
BIOTA


Platform
FIELD SURVEYS    [Information]
GROUND-BASED OBSERVATIONS    [Information]
FIELD INVESTIGATION    [Information]


Instrument
SEDIMENT CORERS    [Information]
MICROSCOPES    [Information]
VISUAL OBSERVATIONS    [Information]


Keywords
microfauna
tolerance limits
algae mats
abundance


Data Set Progress
COMPLETE


Originating Center


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
PAUL BROADY
Role: INVESTIGATOR
Phone: +64 3 364 2525
Fax: +64 3 364 2590
Email: paul.broady at canterbury.ac.nz
Contact Address:
School of Biological Sciences
University of Canterbury
Private Bag 4800
City: Christchurch
Country: New Zealand


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Publications/References
Suren, A. Microflora associated with algal mats in melt ponds of the Ross Ice Shelf. Polar biology 10(5): 329-335, 1990.

Creation and Review Dates
DIF Creation Date: 2009-01-16
Last DIF Revision Date: 2009-01-16

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