Data

Extractable element data for surface seabed sediments in Jervis Bay, NSW (August 2008 and February 2009)

Australian Ocean Data Network
CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with) Geoscience Australia (Associated with) Geoscience Australia Marine Data Manager, (Point of contact)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/bc1b3741-e769-5039-e044-00144f7bc0f4&rft.title=Extractable element data for surface seabed sediments in Jervis Bay, NSW (August 2008 and February 2009)&rft.identifier=Marlin Record Number: 8916&rft.publisher=Australian Ocean Data Network&rft.description=Geoscience Australia carried out marine surveys in Jervis Bay (NSW) in 2007, 2008 and 2009 (GA303, GA305, GA309, GA312) to map seabed bathymetry and characterise benthic environments through colocated sampling of surface sediments (for textural and biogeochemical analysis) and infauna, observation of benthic habitats using underwater towed video and stills photography, and measurement of ocean tides and wavegenerated currents. Data and samples were acquired using the Defence Science and Technology Organisation (DSTO) Research Vessel Kimbla. Bathymetric mapping, sampling and tide/wave measurement were concentrated in a 3x5 km survey grid (named Darling Road Grid, DRG) within the southern part of the Jervis Bay, incorporating the bay entrance. Additional sampling and stills photography plus bathymetric mapping along transits was undertaken at representative habitat types outside the DRG. This 81 sample dataset comprises acidextractable concentrations of trace elements (Fe, Mn, Co, Ni, Cu, Zn, Ge, As, Cd and Pb) in surface seabed sediments (~0 to 2 cm) from Jervis Bay. This dataset is a contribution to the CERF Marine Biodiversity Hub.Progress Code: completedMaintenance and Update Frequency: notPlannedStatement: Bottom sediments were collected using a small Shipek type grab sampler.This device can collect an intact sample of sediment up to 5 cm by 12 cm in area and 5 cm thick. Upon triggering, the grab immediately covers the sample, which prevents washout of fine sediment during retrieval to the surface. The surface sediments (~0 to 2 cm) within the grab were spooned into acidwashed falcon vials and the porewaters were removed by centrifugation (9000 rpm; 5 minutes). The samples were then frozen for transport to the laboratories at Geoscience Australia where they were freezedried and ground in a PSZ mill. Hydrochloric acid (HCl) metal digests of sediments were also undertaken following the protocol of Snape et al. (2004). Briefly, 20 ml of a 1M HCl solution and 1 g freezedried sediment were mixed for 4 hours at room temperature, prior to centrifugation and then filtration into acidcleaned containers. The HCl extracts were analysed by quadrupole ICP_MS at the University of Canberra. All major interfering elements/compounds (i.e., Cl on V, Cr, As and Se) were checked and corrected for. The analyses are provided as mg/kg dry weight.&rft.creator=Anonymous&rft.date=2008&rft.coverage=westlimit=150.71260000000001; southlimit=-35.119999999999997; eastlimit=150.75999999999999; northlimit=-35.090000000000003&rft.coverage=westlimit=150.71260000000001; southlimit=-35.119999999999997; eastlimit=150.75999999999999; northlimit=-35.090000000000003&rft_rights=&rft_rights=This material is released under the Creative Commons Attribution 3.0 Australia Licence.&rft_subject=oceans&rft_subject=Commonwealth Environment Research Facilities&rft.type=dataset&rft.language=English Access the data
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Geoscience Australia carried out marine surveys in Jervis Bay (NSW) in 2007, 2008 and 2009 (GA303, GA305, GA309, GA312) to map seabed bathymetry and characterise benthic environments through colocated sampling of surface sediments (for textural and biogeochemical analysis) and infauna, observation of benthic habitats using underwater towed video and stills photography, and measurement of ocean tides and wavegenerated currents. Data and samples were acquired using the Defence Science and Technology Organisation (DSTO) Research Vessel Kimbla. Bathymetric mapping, sampling and tide/wave measurement were concentrated in a 3x5 km survey grid (named Darling Road Grid, DRG) within the southern part of the Jervis Bay, incorporating the bay entrance. Additional sampling and stills photography plus bathymetric mapping along transits was undertaken at representative habitat types outside the DRG. This 81 sample dataset comprises acidextractable concentrations of trace elements (Fe, Mn, Co, Ni, Cu, Zn, Ge, As, Cd and Pb) in surface seabed sediments (~0 to 2 cm) from Jervis Bay. This dataset is a contribution to the CERF Marine Biodiversity Hub.

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Progress Code: completed
Maintenance and Update Frequency: notPlanned
Statement: Bottom sediments were collected using a small Shipek type grab sampler.This device can collect an intact sample of sediment up to 5 cm by 12 cm in area and 5 cm thick. Upon triggering, the grab immediately covers the sample, which prevents washout of fine sediment during retrieval to the surface. The surface sediments (~0 to 2 cm) within the grab were spooned into acidwashed falcon vials and the porewaters were removed by centrifugation (9000 rpm; 5 minutes). The samples were then frozen for transport to the laboratories at Geoscience Australia where they were freezedried and ground in a PSZ mill. Hydrochloric acid (HCl) metal digests of sediments were also undertaken following the protocol of Snape et al. (2004). Briefly, 20 ml of a 1M HCl solution and 1 g freezedried sediment were mixed for 4 hours at room temperature, prior to centrifugation and then filtration into acidcleaned containers. The HCl extracts were analysed by quadrupole ICP_MS at the University of Canberra. All major interfering elements/compounds (i.e., Cl on V, Cr, As and Se) were checked and corrected for. The analyses are provided as mg/kg dry weight.

Notes

Credit
Geoscience Australia unertook a series of field campaigns in Jervis Bay (Dec 2007 to present) as part of the Surrogates Program in the Commonwealth (Australia) Environmental Research Facilities (CERF) Marine Biodiversity Hub. Thanks are owning to a range of people for there generous contributions to this study. Scott Corson (the master of the M.V. Kimbla)
Credit
Matthew Carey
Credit
Peter Harris
Credit
Mike Hughes
Credit
Jodie Smith and Anna Potter provided field support. Billie Poignand and Kylia Wall (Geoscience Australia) dried and ground these samples. Janice Trafford (Geoscience Australia) undertook the extractions
Credit
and Frank Krykowa (University of Canberra) analysed the metal extracts by ICP_MS..

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150.76,-35.09 150.76,-35.12 150.7126,-35.12 150.7126,-35.09 150.76,-35.09

150.7363,-35.105

text: westlimit=150.71260000000001; southlimit=-35.119999999999997; eastlimit=150.75999999999999; northlimit=-35.090000000000003

Subjects
Commonwealth Environment Research Facilities | oceans |

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Download dataset (.zip 842 KB) (Data Link)

url : https://www.marine.csiro.au/datacentre/projects/cerf/Surrogates_Data_Delivered/geochemistry/geochemistry_jervis_bay.zip

Identifiers
  • Local : Marlin Record Number: 8916
  • global : bc1b3741-e769-5039-e044-00144f7bc0f4