Data

Organic and inorganic geochemistry data for plants and algae in Jervis Bay, NSW (June and 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-e807-5039-e044-00144f7bc0f4&rft.title=Organic and inorganic geochemistry data for plants and algae in Jervis Bay, NSW (June and August 2008 and February 2009)&rft.identifier=Marlin Record Number: 8918&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 18 sample data set comprises %TOC, %TN, TOC/TN ratios, carbon and nitrogen isotopic ratios and major and trace element concnetrations of plant and algae tissues from Jervis Bay. The red algae likely belong to the genera Gracilaria edulis and Acrosorium venulosum which are abundant in the Bay, and are often observed to washup on the beaches. 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 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, ground in a PSZ mill and split into two fractions. One fraction was then decarbonated. The decarbonated powders were sent to Environmental Isotopes Pty Ltd (Sydney) for isotopic analysis by mass spectrometry. Major and trace elements were determined on the carbonatecontaining fraction by Xray fluorescence at Geoscience Australia using a Phillips PW204 4kW sequential spectrometer. Negative values in the trace element data indicate that the particular element was below the indicated level of analytical detection.&rft.creator=Anonymous&rft.date=2008&rft.coverage=westlimit=150.66999999999999; southlimit=-35.130000000000003; eastlimit=150.761; northlimit=-35&rft.coverage=westlimit=150.66999999999999; southlimit=-35.130000000000003; eastlimit=150.761; northlimit=-35&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 18 sample data set comprises %TOC, %TN, TOC/TN ratios, carbon and nitrogen isotopic ratios and major and trace element concnetrations of plant and algae tissues from Jervis Bay. The red algae likely belong to the genera Gracilaria edulis and Acrosorium venulosum which are abundant in the Bay, and are often observed to washup on the beaches. This dataset is a contribution to the CERF Marine Biodiversity Hub.

Lineage

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 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, ground in a PSZ mill and split into two fractions. One fraction was then decarbonated. The decarbonated powders were sent to Environmental Isotopes Pty Ltd (Sydney) for isotopic analysis by mass spectrometry. Major and trace elements were determined on the carbonatecontaining fraction by Xray fluorescence at Geoscience Australia using a Phillips PW204 4kW sequential spectrometer. Negative values in the trace element data indicate that the particular element was below the indicated level of analytical detection.

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 prepared the samples for isotopic/inorganic analysis. The isotopic analyses were undertaken at Environmental Isotopes Pty Ltd (Sydney) by Dr Anita Andrew. The XRF analyses were undertaken at Geoscience Australia by Liz Webber.

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150.761,-35 150.761,-35.13 150.67,-35.13 150.67,-35 150.761,-35

150.7155,-35.065

text: westlimit=150.66999999999999; southlimit=-35.130000000000003; eastlimit=150.761; northlimit=-35

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: 8918
  • global : bc1b3741-e807-5039-e044-00144f7bc0f4