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Offshore Islands (Australia) | Norfolk Island
3 record(s)
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draft
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This record describes the seabed image data (digitised 35 mm slide still camera images) collected during the NORFANZ voyage on the Norfolk Ridge and Lord Howe Rise in the Tasman Sea between Australia and New Zealand, in May-June 2003. Fourteen seamount and slope sites were sampled, 10 on the Norfolk Ridge and 4 on the Lord Howe Rise. The camera was deployed using two systems: (1) a headline camera unit deployed with the orange roughy net, and (2) a vertical-drop camera system. The headline camera system yielded usable photographs from 14 operations at 6 sites on the Norfolk Ridge and 1 operation at 1 site on the Lord Howe Rise where the camera frame got heavily damaged. The drop camera system was used on 7 occasions: 5 operations at 4 sites on the Norfolk Ridge and 2 operations at 2 sites on the Lord Howe Rise. The dataset contains 2141 images of the seabed.
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This dataset contains oceanographic data collected at a 50m coastal station off Norfolk Island (lat. 28 deg. 56 min. S, long. 168 deg. 05 min. E) between December 1977 and February 1989. The station was set up under the CSIRO coastal monitoring programme in the 1970s and was sampled approximately monthly for temperature, salinity, dissolved oxygen and nitrate. The data are stored on-line as part of the CMR hydrology archive in Hobart. Additional copies of the data are deposited with the NODC data archive (World Data Centre-A) in the U.S.A., and details of relevant data files can be viewed via their website by requesting the file inventory for this coastal station which is NODC platform code "09AB".
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The project aims to integrate and synthesise data on deepsea octocoral identifications and distribution from CSIRO surveys and museum holdings in Australian waters to support research such as identification of ecological and biological significant areas (EBSA) and vulnerable marine ecosystems (VME), climatology, monitoring of benthic habitats (impacts and recovery) and biogeography. The confirmed octocoral identifications are added to or updated in CAAB as necessary, with 99-codes being established for alpha-species Operational Taxonomic Units (OTUs) based on the combined collection. In addition, project staff Dr Phil Alderslade is contributing to training workshops and guides for coral identification in collaboration with NIWA. The geographic extent of the project is primarily Australia's EEZ but reaching into neighbouring Oceania regions (e.g. NZ, NC). Physical specimens are lodged with Australian museums based on region of collection: (1) North Tasman Region: Northern Territory Museum & Art Gallery (NTM), with some duplicate specimens lodged with the Australian Museum (AM); (2) south-eastern Australia region: Tasmanian Museum and Art Gallery (TMAG); (3) south-western and north-western Australia: Western Australian Museum (WAM). RELATED ACRONYMS: RAD -Rank Abundance Distributions EBSA -Ecological and Biological Significant Areas VME -Vulnerable Marine Ecosystems OTU -Operational Taxonomic Units CAAB -Codes for Australian Aquatic Biota (CSIRO)