Data

WAMSI Node 1.1.3 - Marmion Benthic Survey 2007

Australian Ocean Data Network
CSIRO O&A, Information & Data Centre (Point of contact) Data Officer (DW), Hobart (Processor of)
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://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/810ec955-0f24-4706-bd11-0423e2775eb8&rft.title=WAMSI Node 1.1.3 - Marmion Benthic Survey 2007&rft.identifier=Anzlic Identifier: ANZCW0306008524&rft.publisher=Australian Ocean Data Network&rft.description=In May-June 2007, an autumn bloom cruise was conducted on the National Marine Facility, Southern Surveyor, led by Peter Thompson. The voyage was conducted in three legs, with a the first conducted from May 10th to May 15th focused on benthic habitats. Benthic based operations were performed over two transects near Perth at 31.71ºS and 31.76ºS from 115.63ºE to 115.15ºE with stations at depths of 30, 40, 50, 75, 100 and 150m. Acoustic swath mapping of the sea-bed was conducted during the entire voyage; at each of the 12 study sites, benthic sled dredges, sediment grabs, benthic video and CTD casts were completed.Maintenance and Update Frequency: notPlannedStatement: The dredges were by a large heavy epibenthic sled, 1.2m wide with net catch 15mm stretched mesh. Thirteen dredges comprised 6 over reef or rock sediment (from 30-75m depth) and 7 over soft sediment (from 40-150m depth). Animal and plant samples were photographed, identified, catalogued, counted and weighed. Thirteen videos were captured- 1 at each station of 30, 40 and 150m depth and 2 continuous tows from 50-100m depth. Extra videos were also performed between 35-50m depth to target a range of habitat heterogeneity identified from the swath imagery. The series of towed videos ranged from a distance of 470m to 5.9km, with a total distance of 32.5km of benthic footage. Video was manually described into 15 categories based on sea-bed type and associated plants and animals and their densities. Data Details of operation deployments and results of benthic dredges reside in an Oracle database; extracts have been saved as Excel spreadsheets with further analysis. Videos are stored on original DVCAM tapes and as .wmv files; analysis is in an Excel spreadsheet. Swath data is a series of .xyz, .all and .txt files.&rft.creator=Anonymous&rft.date=2009&rft.coverage=westlimit=115.15; southlimit=-31.76; eastlimit=115.63; northlimit=-31.71&rft.coverage=westlimit=115.15; southlimit=-31.76; eastlimit=115.63; northlimit=-31.71&rft.coverage=uplimit=-30; downlimit=-150&rft.coverage=uplimit=-30; downlimit=-150&rft_rights=Data is made available under a Creative Commons Attribution 4.0 International Licence (<a href=http://creativecommons.org/licenses/by/4.0/>http://creativecommons.org/licenses/by/4.0/</a>). Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was provided by CSIRO. http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</a>).&rft_subject=biota&rft_subject=oceans&rft_subject=BENTHIC HABITAT&rft_subject=EARTH SCIENCE&rft_subject=BIOSPHERE&rft_subject=AQUATIC ECOSYSTEMS&rft_subject=COMMUNITY STRUCTURE&rft_subject=ECOLOGICAL DYNAMICS&rft_subject=COMMUNITY DYNAMICS&rft_subject=SEAFLOOR TOPOGRAPHY&rft_subject=OCEANS&rft_subject=BATHYMETRY/SEAFLOOR TOPOGRAPHY&rft_subject=Coastal Waters (Australia) | West Australia Coast, WA&rft_subject=Global / Oceans | Indian Ocean&rft_subject=Research Voyage: SS 04/2007&rft_subject=WAMSI Node 1 Project 1: Southwest Australian Coastal Biogeochemistry&rft_subject=Western Australian Marine Science Institute&rft_subject=Ship: Southern Surveyor&rft.type=dataset&rft.language=English Access the data
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Data is made available under a Creative Commons Attribution 4.0 International Licence (http://creativecommons.org/licenses/by/4.0/). Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was provided by CSIRO.
http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</a>).

Brief description

In May-June 2007, an "autumn bloom cruise" was conducted on the National Marine Facility, Southern Surveyor, led by Peter Thompson. The voyage was conducted in three legs, with a the first conducted from May 10th to May 15th focused on benthic habitats. Benthic based operations were performed over two transects near Perth at 31.71ºS and 31.76ºS from 115.63ºE to 115.15ºE with stations at depths of 30, 40, 50, 75, 100 and 150m. Acoustic swath mapping of the sea-bed was conducted during the entire voyage; at each of the 12 study sites, benthic sled dredges, sediment grabs, benthic video and CTD casts were completed.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: The dredges were by a large heavy epibenthic sled, 1.2m wide with net catch 15mm stretched mesh. Thirteen dredges comprised 6 over reef or rock sediment (from 30-75m depth) and 7 over soft sediment (from 40-150m depth). Animal and plant samples were photographed, identified, catalogued, counted and weighed. Thirteen videos were captured- 1 at each station of 30, 40 and 150m depth and 2 continuous tows from 50-100m depth. Extra videos were also performed between 35-50m depth to target a range of habitat heterogeneity identified from the swath imagery. The series of towed videos ranged from a distance of 470m to 5.9km, with a total distance of 32.5km of benthic footage. Video was manually described into 15 categories based on sea-bed type and associated plants and animals and their densities. Data Details of operation deployments and results of benthic dredges reside in an Oracle database; extracts have been saved as Excel spreadsheets with further analysis. Videos are stored on original DVCAM tapes and as .wmv files; analysis is in an Excel spreadsheet. Swath data is a series of .xyz, .all and .txt files.

Notes

Credit
Tennille Irvine
Credit
John Keesing

Data time period: 2007-05-10 to 2007-05-15

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115.63,-31.71 115.63,-31.76 115.15,-31.76 115.15,-31.71 115.63,-31.71

115.39,-31.735

text: westlimit=115.15; southlimit=-31.76; eastlimit=115.63; northlimit=-31.71

text: uplimit=-30; downlimit=-150

Subjects
AQUATIC ECOSYSTEMS | BATHYMETRY/SEAFLOOR TOPOGRAPHY | Benthic Habitat | BIOSPHERE | COMMUNITY DYNAMICS | Community Structure | Coastal Waters (Australia) | West Australia Coast, WA | EARTH SCIENCE | ECOLOGICAL DYNAMICS | Global / Oceans | Indian Ocean | OCEANS | Research Voyage: SS 04/2007 | Seafloor Topography | Ship: Southern Surveyor | WAMSI Node 1 Project 1: Southwest Australian Coastal Biogeochemistry | Western Australian Marine Science Institute | biota | oceans |

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Identifiers
  • global : 810ec955-0f24-4706-bd11-0423e2775eb8
  • Local : Marlin Record Number: 8524
  • Local : Anzlic Identifier: ANZCW0306008524
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