Observations of seabirds in Macquarie Island waters (1999)
Citation
Eades D (2023): Observations of seabirds in Macquarie Island waters (1999). v1.12. CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC). Dataset/Occurrence. ISBN 0 643 06240 8. https://doi.org/10.15468/usppqw accessed via GBIF.org on 2024-12-11.Description
This survey is a first attempt at determining the distribution and relative abundance of all seabird species occurring in Macquarie Island waters, especially in relation to the main bathymetric and oceanographic features of the study area, namely the Macquarie Ridge and Subantarctic Front, respectively. To this end, observations of seabirds were made from aboard the CSIRO Research Vessel Southern Surveyor while it conducted acoustic, trawling and benthic surveys in the waters immediately round Macquarie Island and northwards along the Macquarie Ridge during 14-31 January 1999.
The nine main sites within the study area and the distribution of seabird counts at each site are shown in Figure 1 (see Appendix 4 of https://www.frdc.com.au/project?id=1942). Most observations were made over the relatively shallow waters of the main part of the Macquarie Ridge i.e. close inshore off the east and west coasts of the island and northward along the ridge to the southern edge of the Subantartic Front Gap (sites 2-5). Additional observations were made in shallow waters well south of the island at the southernmost part of the ridge (site 7), and at two other ridge sites north of the Subantarctic Front Gap (sites 8 and 9). Observations were also carried out at two deep-water (pelagic) sites: at site 6 in waters c.25 miles west of Aurora Trough, and at the Subantarctic Front Gap (site 1) immediately north of the main north-south ridge through the island.
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David Eadesoriginator
position: Observer
Birds Australia
415 Riversdale Rd
Hawthorn east
3123
Victoria
AU
David Eades
metadata author
position: Observer
Birds Australia
415 Riversdale Rd
Hawthorn east
3123
Victoria
AU
OBIS Australia Node manager
publisher
position: OBIS Australia Node Manager
CSIRO Oceans & Atmosphere
PO Box 1538
Hobart
7001
Tasmania
AU
email: obisau@csiro.au
homepage: http://www.obis.org.au
David Eades
administrative point of contact
position: Observer
Birds Australia
415 Riversdale Rd
Hawthorn east
3123
Victoria
AU