Data

Chlorophyll a and Phaeophytin a data for surface seabed sediments in Jervis Bay, NSW (June and August 2008 and February 2009)

Geoscience Australia
Radke, L. ; Trafford, J.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/72031&rft.title=Chlorophyll a and Phaeophytin a data for surface seabed sediments in Jervis Bay, NSW (June and August 2008 and February 2009)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/72031&rft.publisher=Geoscience Australia&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 126 sample dataset comprises chlorophyll a and pheophytin a measurements on surface seabed sediments (~0 to 2 cm) from Jervis Bay.Maintenance and Update Frequency: asNeededStatement: 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, preventing washout of fine sediment during retrieval to the surface. The surface 0.5 cm of sediment within the grab was sampled using a cutoff syringe.The subsample was wrapped in Al foil and immediately frozen.Chl_a concentrations in sediment extracts (90% acetone) were calculated from spectrophotometric readings at wavelengths of 664 nm and 750 nm before and after the addition of 0.1 mol/L HCl using the equation derived by Lorenzen (1967). Pheophytin a concentrations are determined as part of the process. Data are presented in ug/g, both as wet and dry weights.&rft.creator=Radke, L. &rft.creator=Trafford, J. &rft.date=2011&rft.coverage=westlimit=150.67725; southlimit=-35.13; eastlimit=150.78; northlimit=-35.0&rft.coverage=westlimit=150.67725; southlimit=-35.13; eastlimit=150.78; northlimit=-35.0&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=Marine Data&rft_subject=Bathymetry Grid&rft_subject=abiotic surrogates&rft_subject=geochemistry&rft_subject=marine&rft_subject=CERF&rft_subject=AU-NSW&rft_subject=Marine Geoscience&rft_subject=EARTH SCIENCES&rft_subject=GEOLOGY&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Open Licence view details
CC-BY

Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/by/4.0

Creative Commons Attribution 4.0 International Licence

CC-BY

4.0

http://creativecommons.org/licenses/

WWW:LINK-1.0-http--link

Australian Government Security ClassificationSystem

https://www.protectivesecurity.gov.au/Pages/default.aspx

WWW:LINK-1.0-http--link

Access:

Open

Brief 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 126 sample dataset comprises chlorophyll a and pheophytin a measurements on surface seabed sediments (~0 to 2 cm) from Jervis Bay.

Lineage

Maintenance and Update Frequency: asNeeded
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, preventing washout of fine sediment during retrieval to the surface. The surface 0.5 cm of sediment within the grab was sampled using a cutoff syringe.The subsample was wrapped in Al foil and immediately frozen.Chl_a concentrations in sediment extracts (90% acetone) were calculated from spectrophotometric readings at wavelengths of 664 nm and 750 nm before and after the addition of 0.1 mol/L HCl using the equation derived by Lorenzen (1967). Pheophytin a concentrations are determined as part of the process. Data are presented in ug/g, both as wet and dry weights.

Issued: 2011

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related Organisations

Related People

150.78,-35 150.78,-35.13 150.67725,-35.13 150.67725,-35 150.78,-35

150.728625,-35.065

text: westlimit=150.67725; southlimit=-35.13; eastlimit=150.78; northlimit=-35.0

Subjects
AU-NSW | Bathymetry Grid | CERF | Earth Sciences | Geology | Marine Data | Marine Geoscience | Published_External | abiotic surrogates | geochemistry | geoscientificInformation | marine |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Other Information
Download the file (xls) (File download)

uri : https://d28rz98at9flks.cloudfront.net/72031/72031_v2.zip

Identifiers
Similar data you may be interested in: