Skip to main content
open Open - This dataset is available for use by everyone
open_login Open - Login - This dataset is available for use by everyone - login required
fees_apply Fees Apply - This dataset is available for use subject to payment
restricted Restricted - This dataset is available for use subject to approval
govt_only Government Use Only - This dataset is available for government use only
mixed Mixed - A variety of access levels apply to this dataset's resources
open Open - This resource is available for use by everyone
open_login Open - Login - This resource is available for use by everyone - login required
fees_apply Fees Apply - This resource is available for use subject to payment
restricted Restricted - This resource is available for use subject to approval
govt_only Government Use Only - This resource is available for government use only
mixed Mixed - A variety of access levels apply to this resource
Data WA Logo
Contact Us Help Centre
      • Home
      • Data
      • Organisations
      • Applications
      • Groups
      • SLIP
      • Community 
        Forum Blog
      • Public Sector 
        wa.gov.au Walis Capture WA Land Monitor Urban Eye
      1. Home
      2. Organizations
      3. Western Australian Marine Science Institution
      4. WAMSI 2 - Dredging Node - Project 6.3 Defining Thresholds and Indicators of Filter-feeder Response to Dredging Related Pressures - FIELD SURVEYS, Western Australia

      WAMSI 2 - Dredging Node - Project 6.3 Defining Thresholds and Indicators of Filter-feeder Response to Dredging Related Pressures - FIELD SURVEYS, Western Australia

      Project 6.3 - Field surveys: The objective of this work is to provide in situ community level data (major taxa and species, diversity, dominant growth forms, abundance, density etc.) for local filter feeders at two scales of survey (large scale: underwater video and scoring, small scale: SCUBA, sampling and analyses) and reveal which taxa or growth forms are habitat-forming and should be used for the experimental work (Project 6.4). The main focus will be on sponges, but other filter feeders will also be included at Class level (sponges vs. tunicates vs. cnidarians vs. bryozoans). In addition, this work will identify changes before vs. after the dredging work and therefore validate parts of the tank work. Subject to the consistency of responses across all filter feeders or immediately obvious patterns, we aim to identify of the most vulnerable organisms that may be used as biomonitors, and responses that may act as bioindicators for dredging-related stress. Samples will be collected to determine community attributes such as proportion of heterotrophy vs. phototrophy etc.

      Fieldwork was conducted during two trips (2013 and 2015) aligned with dredging activities at Chevron's Wheatstone Project to allow a 'before dredging' assessment in comparison to 'after'.. Field surveys were conducted at two scales using different methods and answering different questions. Large-scale surveys: Sampling was conducted using underwater towed video. Some general principles are that (1) sample before any dredging activities have started and afterwards, (2) subject to access and benthic communities found by video work we will sample in nearshore, mid and offshore zones, and (3) where possible sample areas where there are existing baseline data or areas that will be monitored throughout the program in the compliance with the monitoring program (monitoring is thought to be based on quarterly sampling), (4) emphasize sampling in the ZHI where dredging impacts are likely and where sampling is often not conducted during dredging programs (as these areas are effectively sacrificial). Small-scale surveys: Replicated IS x 1m belt transects will be investigated and sampled on SCUBA depending on preliminary findings from the video work and conducted according to WAM protocol.

      Show full description
      Access & Use Information
      Open
      This dataset is available for use by everyone
      Licence
      Creative Commons Attribution Share-Alike 4.0

      Data and Resources
      Expand all / Collapse all

      Web Services & APIs
      This dataset doesn’t have any APIs available at the moment.
      Data Downloads
      • open WAMSI2_Theme6.3_2015_Scored_Benthic_Stills ZIP

        Download
      • open WAMSI2_Theme6.3_2015_TowedVideo_RealTime_Benthos ZIP

        Download
      • open WAMSI2_Theme6.3_2013_Scored_Benthic_Stills ZIP

        Download
      • open WAMSI2_Theme6.3_2013_TowedVideo_RealTime_Benthos ZIP

        Download
      Resources
      • open WAMSI2_Theme6.3_2013_and_2015_Dive_Survey_Data .xlsx

        Open
      • open WAMSI2_Theme6.3_2013_and_2015_cholophyll data .xlsx

        Open
      • open Final report PDF

        Open
      Curated collections of datasets. Need help adding this dataset to a group? Get in touch.

      There are no groups associated with this dataset

      The best examples of datasets in use. Want to showcase your use of data? Let us know!

      There are no applications that feature this dataset yet — get in touch with us at info@data.wa.gov.au to submit one!

      Activity Stream RDF JSON
      western-australian-marine-science-institution
      Key Information
      Published by
      Western Australian Marine Science Institution
      Information classification
      -
      Data theme
      Science
      Data last updated
      02-05-2018
      Update frequency
      infrequently
      Data custodian
      Author Not Specified
      Dataset contact
      Maintainer Not Specified
      Website
      -
      First published
      15-08-2017
      Metadata last updated
      25-05-2022
      Data source
      http://catalogue.aodn.org.au/geonetwork/srv/eng/metadata.show?uuid=9f577024-8ca0-45af-a02e-a010daf4cb84
      Temporal coverage
      01-01-2013 — 01-11-2016
      Geospatial theme
      Marine and Estuaries
      Geospatial source projection
      -
      Spatial coverage

      Dataset extent

      Digital object identifier
      -
      Citation
      -
      Data usability rating How reusable and linked the data is. Learn more.

      Acknowledgement

      The Government of Western Australia respectfully acknowledges the traditional owners of country throughout Western Australia and pays its respects to Elders past, present and emerging.

      Useful links

      • Publisher Login
      • About
      • Policy
      • Progress
      • Status Page

      Legal

      • Accessibility
      • Copyright
      • Disclaimer
      • Privacy

      Contact

      1 Midland Sq, Midland 6056

      info@data.wa.gov.au

      +61 (0)8 9273 7373

      +61 (0)8 9250 3187

      © 2021 Government of Western Australia