The effect of Scott Base waste water discharge on the marine benthic community
Entry ID: K054_1991_1992_NZ_3

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Summary
Abstract: To determine if the Scott Base waste water discharge has any effect on the marine benthic community, the benthic community was surveyed, tissue samples were collected from bivalves and water samples were analysed for faecal coliform bacteria from two sites, Pram Point (where the outfall is located) and Cape Armitage (some distance away). The benthic community survey was conducted to determine community assemblage. This data set is reported in another data set, see related data link. Bivalves are known to accumulate toxins in tissues and hence represent a useful indicator of long term environmental conditions. Ten Limatula hodgsoni were collected from each of the two sites at Cape Armitage and Pram Point and immediately frozen for analysis of tissue concentrations of heavy metals and hydrocarbons. Water samples were taken from shallow (5m) and deep (25m) regions in the water column at both sites on three occasions. Each of the five 500ml replicate samples from each station was filtered through 0.2µm minisart filters and incubated at 37°C for 24 hours. Colonies were counted and coliform densities estimated. No coliforms were recorded from any of the samples and no evidence was found to suggest that the Scott Base waste water discharge was having a detrimental effect on the benthos. One possible impact of Scott Base was observed. The steep incline of the reef meant that loose rubble tumbled down very easily. Some areas looked as if rocks had fallen from above as scour marks appeared on the reef slope. This is most likely from bulldozing activity around the base, moving sediments and rocks to the edge of the land ice transition. It is suggested that bulldozed material should be kept away from the cliff edge.

Parent DIF
This data set description is a member of a collection. The collection is described in
K054_1991_1992_NZ_1


Geographic Coverage
 N: -77.85 S: -77.85  E: 166.6667  W: 166.6667
 Min Depth: 0  Max Depth: 25
 N: -77.85 S: -77.85  E: 166.75  W: 166.75
 Min Depth: 0  Max Depth: 25

Temporal Coverage
Start Date: 1991-10-16
Stop Date: 1991-11-09


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > ROSS ISLAND
CONTINENT > ANTARCTICA > CAPE ARMITAGE
CONTINENT > ANTARCTICA > PRAM POINT
GEOGRAPHIC REGION > POLAR


Science Keywords
HUMAN DIMENSIONS >ENVIRONMENTAL IMPACTS >CONTAMINANT LEVELS/SPILLS    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL IMPACTS >SEWAGE DISPOSAL    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL GOVERNANCE/MANAGEMENT >ENVIRONMENTAL ASSESSMENTS    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >BENTHIC HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >REEF HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >MARINE HABITAT    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >COMMUNITY STRUCTURE    [Definition]


ISO Topic Category
BIOTA


Platform
FIELD INVESTIGATION    [Information]


Data Set Progress
COMPLETE


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
CHRIS BATTERSHILL
Role: INVESTIGATOR
Phone: +61 (07) 4753 4431
Fax: +61 (07) 4772 5852
Email: c.battershill at aims.gov.au
Contact Address:
Australian Institute of Marine Science
PMB 3, Townsville MC
City: Townsville
Province or State: Queensland
Postal Code: 4819
Country: Australia


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



Creation and Review Dates
DIF Creation Date: 2009-05-21
Last DIF Revision Date: 2009-06-06

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