Stream invertebrate communities of Macquarie Island
Entry ID: AAS_3261

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Summary
Abstract: Metadata record for data from AAS (ASAC) Project 3261.

The objectives of this project are to:

1. Assess temporal variability in stream invertebrates on the sub-Antarctic island, Macquarie Island. This objective is to support their use as indicators of stream health due to climate change, other anthropogenic impacts and natural changes (see below).

2. Measure for the first time ecosystem functions of breakdown of organic matter and ecosystem respiration in streams of Macquarie Island.

3. Collect for the first time samples from the algae and protozoan stream communities from Macquarie Island.

The stream invertebrate communities of Macquarie Island were assumed to be temporally stable. However, sampling of these communities in the summers of 1992/93 and 2007/08 has shown an unexpected change over this period. The cause of this change is unknown. Likewise it is unknown whether this change (a) was a gradual change between the sampling points, (b) the change was abrupt or (c) if there were many changes over this period. Without information on temporal variability on the scales less than a few years it is impossible to assess potential cause of the past observed change in the stream invertebrate communities. We thus propose sampling the stream invertebrate communities in the 2009/10 summer and (if possible) over the 2010 winter. In conjunction with the 1992/93 and 2007/08 data, this new data will allow assessment of the temporal variability of the invertebrate communities at a number of scales.

Objectives 2 and 3 are to provide information of food-webs and the ecology of Macquarie Island streams so as to better understand the natural processes occurring in the stream and to assess the potential for them to be affected by climate change, other anthropogenic impacts and natural changes on the island.

Progress against objectives:
Stream samples (invertebrate and protozoan) were collected from sites 2,3,4,5,6 and 16, and invertebrate only samples from 11 and 18. These samples have been preserved and are returning to Australia on V5 where they will undergo laboratory processing, identification and statistical analysis of the data.

Dissolved oxygen and temperature loggers were installed at three sites and will be left in place until May 2010 (and returned on Voyage E1). From the data collected by these loggers it will be possible to estimate the productivity of the streams (total stream photosynthesis and respiration).

Data from this project have been archived in the Australian Antarctic Data Centre.

The download file contains a readme file, which provides details on the column headings in the spreadsheets. A map detailing site locations is also provided. The sites used in 1992, 2008 and 2010 were the same (eg site 2 in 1992 is also site 2 in 2010). All data contained in the "Environ_Full.xls" file were collected by Ben Kefford.

Regarding the data in the 92-08-10 file, data were collected by Richard Marchant and Peter Lilywhite in 1992, Ben Kefford in 2008, and James Doube in 2010. All invertebrates were identified by Richard Marchant.

Regarding the "Marchant 2011 macca bugs accessory pub" file, the data were collected by Ben Kefford, Richard Marchant and Jane Wasley.

Also see the metadata record "Have stream invertebrate communities of Macquarie Island changed over 15 years and are they likely to respond to climate changes or other environmental factors?" (ASAC_2918) for more information.

Related URL
Link: GET DATA
Description: Download point for the data


Link: GET RELATED DATA SET METADATA (DIF)
Description: See the related metadata record for project 2918.


Link: VIEW PROJECT HOME PAGE
Description: Public information for ASAC project 3261


Link: VIEW RELATED INFORMATION > PUBLICATIONS
Description: Download point for the paper - AAD only


Link: VIEW RELATED INFORMATION
Description: Citation reference for this metadata record and dataset


Geographic Coverage
 N: -54.45 S: -54.55  E: 158.99  W: 158.9

Data Set Citation
Dataset Originator/Creator: Kefford, B.
Dataset Title: Stream invertebrate communities of Macquarie Island
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2012-12-19
Dataset Publisher: Australian Antarctic Data Centre
Online Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...


Temporal Coverage
Start Date: 2009-09-30
Stop Date: 2010-05-31


Location Keywords
OCEAN > SOUTHERN OCEAN
OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND
GEOGRAPHIC REGION > POLAR


Science Keywords
BIOSPHERE >TERRESTRIAL ECOSYSTEMS >ISLANDS    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >OXYGEN    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >WATER TEMPERATURE    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES    [Definition]
BIOLOGICAL CLASSIFICATION >PLANTS >MICROALGAE    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >RIVERS/STREAM HABITAT    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >SPECIES/POPULATION INTERACTIONS >POPULATION DYNAMICS    [Definition]


ISO Topic Category
BIOTA
INLAND WATERS


Platform
FIELD SURVEYS    [Information]
FIELD INVESTIGATION    [Information]


Quality
The values provided in temporal and spatial coverage are approximate only.

Data from this project have been provided by Ben Kefford. However, the data have not been adequately described, and should therefore be used with caution.


Access Constraints
These data are publicly available for download from the provided URL.

A copy of the referenced paper is only available for download by AAD staff.


Use Constraints
This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_3261 when using these data.


Keywords
invertebrates
streams
ecosystems
climate change
algae
dissolved oxygen
temperature


Data Set Progress
COMPLETE


Originating Center
Australian Antarctic Division


Data Center
Australian Antarctic Data Centre, Australia    [Information]
Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia



Distribution
Distribution_Media: HTTP
Distribution_Size: 39 kb
Distribution_Format: Excel, PDF
Fees: Free


Personnel
BEN KEFFORD
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Phone: +61 3 9925 7126
Email: ben.kefford at rmit.edu.au
Contact Address:
Rmit School Of Applied Sciences
City: Bundoora
Province or State: VIC
Postal Code: 3083
Country: Australia


DATA OFFICER AADC
Role: DIF AUTHOR
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia


Publications/References
Marchant, R., Kefford, B.J., Wasley, J., King, C.K., Doube, J. and Nugegoda, D. (2011), Response of stream invertebrate communities to vegetation damage from overgrazing by exotic rabbits on subantarctic Macquarie Island, Marine and Freshwater Research, 62, 404-413, doi:doi:10.1071/MF10317

Creation and Review Dates
DIF Creation Date: 2010-04-20
Last DIF Revision Date: 2014-08-27

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