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Earth Science | Oceans | Ocean Chemistry | Biogeochemical Cycles
15 record(s)
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Process Study 2 was undertaken between 20-22 September 2005 in the Huon Estuary offshore from Hideaway Bay. During this Process Study, two sediment traps were deployed at each of two sites (near sites P3 and P4 from the spatial survey) on the bottom for 24 hours.Prior to the deployment of the traps surface sediment samples were collected with a benthic grab from each site. Each sediment trap consisted of three collection tubes, material from each tube was filtered on 47 mm GFF filters, with several filters required to filter all of the particualte matter from each tube. Combined filters from each of two tubes labeled A and B (typically 3 filters for each tube) were extracted for lipid analysis. Tube C was used either for isotopes or Fauna indent.
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Process Study 3 was undertaken between 03-05 October 2006 in North West Bay. Sediment traps were deployed and sediment samples taken at five sites in NWB. The primary aim was to investigate the composition of material being deposited to the sediments from the water column at these times and to compare this organic matter with that found in the sediments at the same sites. Additionally, we wished to see whether any organic matter of obvious fish farm origin could be detected. One sediment trap was deployed at each North West Bay (NWB) site in water varying in depth from 10 m (site 9) to 20 m (site 2). The trap sites were numbered 2, 4, 5, 7, and 9. Traps were deployed at their respective sites and left for at least one hour before the caps were removed in order to eliminate sediment re-suspended during deployment from entering the traps. The traps were left in place for 48 hours and then retrieved, capped and returned to Hobart for recovery of the samples. Each trap had 3 tubes, each of these tubes was split into three. One litre was taken and filtered for lipids using pre-weighed 47 mm GFF filters, one litre for pigments and the rest was split in two and stored in 500ml bottles, one for zooplankton analysis and the other for microalgal samples. Several filters were required to filter the lipid sample depending on the amount of particles in the tube. Selected filters were then analysed for lipid biomarkers. Organic matter from selected filters was also analysed for stable isotope 13C and 15 N values and carbon content. The contents of one tube from each trap was inspected for identification of zooplankton remains and faecal pellets using light microscopy. Sediments were collected at each of the above trap sites using a Wilco box corer.
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Process Study 1 was undertaken between 12-14 April 2005 in the Huon Estuary offshore from Hideaway Bay. During this Process Study, two sediment traps were deployed at each of two sites (near sites P3 and P4 from the spatial survey) on the bottom for 24 hours.Prior to the deployment of the traps surface sediment samples were collected with a benthic grab from each site. Each sediment trap consisted of three collection tubes, material from each tube was filtered on 47 mm GFF filters, with several filters required to filter all of the particualte matter from each tube. Combined filters from each of two tubes labeled A and B (typically 3 filters for each tube) were extracted for lipid analysis. Tube C was used either for isotopes or Fauna indent.
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Hydrochemistry analyses conducted at CMAR Floreat on behalf of WAMSI projects
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This dataset contains the photosynthetic parameters determined experimentally from Productivity vs Light intensity experients (P vs E experiments), and primary production calculated using these parameters, collected on Franklin voyage FR 08/90, a part of the JGOFS study - Inorganic and Organic Carbon Cycles in Equatorial Waters. The voyage took place in the Solomon Sea, the Western Equatorial Pacific Ocean, Bismarck and Coral Seas during 02-17 October 1990. This dataset is archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset is contained in the cruise report for this voyage and/or the references.
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This record describes nitrate concentration data obtained with the Seabird/Satlantic Submersible Ultraviolet Nitrate Analyser (SUNA) owned by ACE CRC (Tom Trull), collected on the Marine National Facility RV Investigator voyage IN2015_V01, departing Hobart on the 21st March and returning to Hobart on the 29th of March, 2015. The SUNA V2 determines nitrate concentrations from ultra-violet spectra. It was deployed on the Triaxus towed body. Calibration onboard IN2015_v01 against Milli-Q purified water blank and Hydrochemistry 7 uM nitrate standard in seawater.
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This record describes sediment trap data obtained with the SAZ16 Sediment Trap, collected on the Marine National Facility RV Investigator voyage IN2015_V01, departing Hobart on the 21st March and returning to Hobart on the 29th of March, 2015. The SAZ sediment trap mooring focuses on quantifying the transfer of carbon and other nutrients to the ocean interior by sinking particles, and collecting samples to investigate their ecological controls. SAZ16 Sediment Traps were recovered and data downloaded from sediment trap controller computers.
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This record is an overview entry for biological data collected on Franklin voyage FR 01/90. The voyage took place in the Tasman Sea and the Southern Ocean during 10-30 January 1990. This dataset is archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset is contained in the cruise report for this voyage and/or the references.
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This dataset contains the photosynthetic paramters determined experimentally from Productivity vs Light intensity experients (P vs E experiments), and primary production calculated using these parameters, collected on Franklin voyage FR 05/92, a part of the JGOFS study - Inorganic and Organic Carbon Cycles in Equatorial Waters. The voyage took place in the Solomon Sea, the Western Equatorial Pacific Ocean, Bismarck and Coral Seas during 15 June - 13 July 1992. This dataset is archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset is contained in the cruise report for this voyage and/or the references.
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This record is an overview entry for biological data collected on Franklin voyage FR 08/93. The voyage took place in the Solomon Sea, the Western Equatorial Pacific Ocean, Bismarck and Coral Seas during 5 November - 1 December 1993. This dataset is archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset is contained in the cruise report for this voyage and/or the references.