WAMSI Node 1.1.3 - Marmion Benthic Survey 2007

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About this Collection

WAMSI Node 1.1.3 - Marmion Benthic Survey 2007

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 ... more

Biological Oceanography

CSIRO Enquiries
1300 363 400

Biosphere Ecological Dynamics Community Structure Oceans Bathymetry/Seafloor Topography Seafloor Topography Australia > Western Australia Coast Indian Ocean

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.

Tennille Irvine

Creative Commons Attribution 3.0 Unported Licence

CSIRO (Australia), Western Australian Marine Science Institution (WAMSI) (Australia)

Keesing, John; Irvine, Tennille (2012): WAMSI Node 1.1.3 - Marmion Benthic Survey 2007. v1. CSIRO. Data Collection.

All Rights Reserved (including copyright) CSIRO Australia 2012.

The metadata and files (if any) are available to the public.

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Location Details

31°42′36″ S

31°45′36″ S

115°37′48″ E

115°9′0″ E


More about this Collection

Hiski Kippo, CSIRO Division of Marine and Atmospheric Research - Floreat

Scitentific Programmer - Data Manager

-150 m

-30 m




About this Project

CLSD WAMSI 1.1: SW Aus Shelf Biogeochem

WAMSI Node 1 Project 1: Southwest Australian Coastal Biogeochemistry To characterise the South West Australian marine coastal and shelf ecosystem.

John Keesing

Oceanic survey- dredge

Observed Data - field Acoustic swath mapping, benthic sled dredges, sediment grabs, benthic video and CTD casts.


John Keesing

Tennille Irvine

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