Data

Torres Strait Reef Resource Inventory 1995-1996

Australian Ocean Data Network
CSIRO O&A, Information & Data Centre (Point of contact)
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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/9aace4b9-1253-4945-bdad-04859c974041&rft.title=Torres Strait Reef Resource Inventory 1995-1996&rft.identifier=Anzlic Identifier: ANZCW0306007053&rft.publisher=Australian Ocean Data Network&rft.description=A field survey was done on the reefs of Torres Strait in February 1995, November 1995 and February 1996. A total of 1,274 sites were sampled with a 20 m by 2 m transect line by divers on the tops of 43 reefs. A total of 374 sites were also sampled by divers along the edges of 41 reefs. At all sites the percentage cover of sand, rubble, live coral and boulders was recorded as were the percentage cover of the dominant and conspicuous sessile flora and faunal megabenthos. Holothurians, giant clams, pearl shells and other large gastropods and conspicuous solitary megafauna were counted and the holothurians were returned to the dinghy and weighed to provide estimates of abundance and biomass. The habitats on the reefs of Torres Strait were classified by image analysis of Landsat TM satellite data. The habitats were characterised (ground-truthed) in terms of the dominant benthos and labelled based on the data collected during three field surveys. There were seven main habitat types identified from analysis of the field data and classified satellite imagery: exposed sand; shallow bare sand; mixed sand and hard substrate / coral; shallow rubble and algae / seagrass; medium depth sand and algae; and deep reef edge or lagoon / coral. The field data also indicated that the reefs in Torres Strait were grouped into three main regions: the ribbon reefs along the outside edge of the Great Barrier reef; midshelf reefs up to but excluding the Warrior reef complex; and the reefs on the Oriomo shelf in central Torres Strait including the Warrior reefs, Dungeness reefs and reefs further west along the band of continental islands running north from Cape York to Mabuiag Island mid way across Torres Strait. A series of maps were produced to show the distribution and abundance of reef habitats and the megabenthos sampled on the reefs of Torres Strait. The maps were also stored in digital form in the Torres Strait GIS and are available for further research and monitoring and fisheries management. Refer to the published reports.Progress Code: completedMaintenance and Update Frequency: notPlannedStatement: Field data entered directly into database. Metadata updated for the Torres Strait Inventory 2013 Project.&rft.creator=Anonymous&rft.date=2008&rft.coverage=westlimit=142; southlimit=-11; eastlimit=143; northlimit=-9; projection=AGD84&rft.coverage=westlimit=142; southlimit=-11; eastlimit=143; northlimit=-9; projection=AGD84&rft.coverage=uplimit=0; downlimit=-20&rft.coverage=uplimit=0; downlimit=-20&rft_rights=Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. 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.&rft_subject=biota&rft_subject=environment&rft_subject=imageryBaseMapsEarthCover&rft_subject=oceans&rft_subject=Earth Science | Agriculture | Agricultural Aquatic Sciences | Fisheries&rft_subject=Earth Science | Biological Classification | Animals/Invertebrates&rft_subject=Earth Science | Biosphere | Aquatic Ecosystems | Benthic Habitat&rft_subject=Marine Features (Australia) | Torres Strait, QLD&rft_subject=Torres Strait Research Repository 2013&rft_subject=Class Gastropoda - undifferentiated&rft_subject=Holothuriidae - undifferentiated&rft_subject=Pteriidae - undifferentiated&rft_subject=Tridacnidae - undifferentiated&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, please see link. 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.

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Brief description

A field survey was done on the reefs of Torres Strait in February 1995, November 1995 and February 1996. A total of 1,274 sites were sampled with a 20 m by 2 m transect line by divers on the tops of 43 reefs. A total of 374 sites were also sampled by divers along the edges of 41 reefs. At all sites the percentage cover of sand, rubble, live coral and boulders was recorded as were the percentage cover of the dominant and conspicuous sessile flora and faunal megabenthos. Holothurians, giant clams, pearl shells and other large gastropods and conspicuous solitary megafauna were counted and the holothurians were returned to the dinghy and weighed to provide estimates of abundance and biomass. The habitats on the reefs of Torres Strait were classified by image analysis of Landsat TM satellite data. The habitats were characterised (ground-truthed) in terms of the dominant benthos and labelled based on the data collected during three field surveys. There were seven main habitat types identified from analysis of the field data and classified satellite imagery: exposed sand; shallow bare sand; mixed sand and hard substrate / coral; shallow rubble and algae / seagrass; medium depth sand and algae; and deep reef edge or lagoon / coral. The field data also indicated that the reefs in Torres Strait were grouped into three main regions: the ribbon reefs along the outside edge of the Great Barrier reef; midshelf reefs up to but excluding the Warrior reef complex; and the reefs on the Oriomo shelf in central Torres Strait including the Warrior reefs, Dungeness reefs and reefs further west along the band of continental islands running north from Cape York to Mabuiag Island mid way across Torres Strait. A series of maps were produced to show the distribution and abundance of reef habitats and the megabenthos sampled on the reefs of Torres Strait. The maps were also stored in digital form in the Torres Strait GIS and are available for further research and monitoring and fisheries management. Refer to the published reports.

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Progress Code: completed
Maintenance and Update Frequency: notPlanned
Statement: Field data entered directly into database. Metadata updated for the Torres Strait Inventory 2013 Project.

Notes

Credit
AFMA - Funding
Credit
Brian Long
Credit
Tim Skewes
Credit
Darren Dennis
Credit
David Milton
Credit
Tom Taranto
Credit
Douglas Jacobs

Data time period: 1995-02-14 to 1996-02-25

This dataset is part of a larger collection

Click to explore relationships graph

143,-9 143,-11 142,-11 142,-9 143,-9

142.5,-10

text: westlimit=142; southlimit=-11; eastlimit=143; northlimit=-9; projection=AGD84

text: uplimit=0; downlimit=-20

Other Information
This work is licensed under a Creative Commons Attribution 4.0 International License (Documentation Link)

uri : https://creativecommons.org/licenses/by/4.0/

Identifiers
  • Local : Anzlic Identifier: ANZCW0306007053
  • Local : Marlin Record Number: 7053
  • global : 9aace4b9-1253-4945-bdad-04859c974041