Data

Effects of a bleaching event in 1998 on soft corals (octocorallia) of the Great Barrier Reef

Name: Effects of a bleaching event in 1998 on soft corals (octocorallia) of the Great Barrier Reef
Published: 2025

Australian Institute of Marine Science

Australian Institute of Marine Science (AIMS)

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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://apps.aims.gov.au/metadata/view/a1b261dc-bc26-4f28-9163-a722fe825979&rft.title=Effects of a bleaching event in 1998 on soft corals (octocorallia) of the Great Barrier Reef&rft.identifier=https://apps.aims.gov.au/metadata/view/a1b261dc-bc26-4f28-9163-a722fe825979&rft.publisher=Australian Institute of Marine Science (AIMS)&rft.description=During the the bleaching event on 1998 on April 6-13, video transects and collection of tissue samples from bleached and unbleached alcyonacean colonies (17 genera) were conducted on 9 reefs in the central section of the GBR. Inshore (Phillips, Pandora, Fantome, and Great Palm Island) and offshore (Lodestone, John Brewer, Bramble, Faraday, Myrmidon) reefs were represented.On each reef, 3-4 transects (0.6 x 50 m) were video-recorded at 2 m and 5-6 m depth. Under 5 fixed points on 40 stops of the video (200 points per transect), alcyonacean and scleractinian corals were identified to genus level where possible. Morphologically similar genera that were indistinguishable on video (e.g. Efflatounaria and Cespitularia) were pooled. Categories of bleaching extent for colonies were: not bleached, partially bleached (either parts of the colony bleached, or the whole colony clearly paler than typical for that genus), and totally bleached.Video surveys were complemented by visual surveys of the extent of bleaching in each genus along each of the transects.Genetic identities of intracellular dinoflagellates (Symbiodinium, spp.) in samples were analyzed using PCR denaturing gradient gel electrophoresis (DGGE) fingerprinting analysis of the internal transcribed spacer regions 1 and 2 which yielded 12 genetically distinctive Symbiodinium types consisting of 2clade B types (B1n, B36), 9 clade C (C1:1, C1c, C1:1a, C1:3a, C1:2, C1q, C15, C64, C84a), and one clade D (D3). To assess the relative sensitivities of zooxanthellate octocorals to thermal stress during a bleaching event.To determine whether differences in bleaching susceptibility between species, among individuals of a species, and within colonies could be attributed to different endosymbiotic dinoflagellates. Soft coral species: Anthelia sp.; Asterospicularia laurae; Briareum sp.1; Briareum sp.2; Cespitularia sp.; Clavularia koellikeri; Efflatounaria sp.; Heteroxenia sp.; Lemnalia sp.; Lobophytum compactum; Nephthea sp.; Paralemnalia digitiformis; Paralemnalia thyrsoides; Pinnigorgia flava; Rhytisma sp.; Sarcophyton sp.; Sinularia cf polydactyla; Sinularia flexibilis; Stereonephthya sp.; Xenia sp.Maintenance and Update Frequency: notPlanned&rft.creator=Australian Institute of Marine Science (AIMS) &rft.date=2025&rft.coverage=westlimit=146.44; southlimit=-19.0; eastlimit=147.4; northlimit=-18.24&rft.coverage=westlimit=146.44; southlimit=-19.0; eastlimit=147.4; northlimit=-18.24&rft_rights=Creative Commons Attribution-NonCommercial 3.0 Australia License http://creativecommons.org/licenses/by-nc/3.0/au/&rft_rights=Use Limitation: All AIMS data, products and services are provided as is and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.&rft_rights=Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: Australian Institute of Marine Science (AIMS). (2009). Effects of a bleaching event in 1998 on soft corals (octocorallia) of the Great Barrier Reef. https://apps.aims.gov.au/metadata/view/a1b261dc-bc26-4f28-9163-a722fe825979, accessed[date-of-access].&rft_rights=Resource Usage:Use of the AIMS data is for not-for-profit applications only. All other users shall seek permission for use by contacting AIMS. Acknowledgements as prescribed must be clearly set out in the user's formal communications or publications.Access Constraint: intellectualPropertyRightsUse Constraint: intellectualPropertyRightsSecurity classification code: unclassifiedMetadata Usage:Access Constraint: intellectualPropertyRightsUse Constraint: intellectualPropertyRightsSecurity classification code: unclassified&rft_subject=oceans&rft.type=dataset&rft.language=English Access the data

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Creative Commons Attribution-NonCommercial 3.0 Australia License
http://creativecommons.org/licenses/by-nc/3.0/au/

Use Limitation: All AIMS data, products and services are provided "as is" and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.

Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: "Australian Institute of Marine Science (AIMS). (2009). Effects of a bleaching event in 1998 on soft corals (octocorallia) of the Great Barrier Reef. https://apps.aims.gov.au/metadata/view/a1b261dc-bc26-4f28-9163-a722fe825979, accessed[date-of-access]".

Resource Usage:Use of the AIMS data is for not-for-profit applications only. All other users shall seek permission for use by contacting AIMS. Acknowledgements as prescribed must be clearly set out in the user's formal communications or publications.Access Constraint: intellectualPropertyRightsUse Constraint: intellectualPropertyRightsSecurity classification code: unclassifiedMetadata Usage:Access Constraint: intellectualPropertyRightsUse Constraint: intellectualPropertyRightsSecurity classification code: unclassified

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During the the bleaching event on 1998 on April 6-13, video transects and collection of tissue samples from bleached and unbleached alcyonacean colonies (17 genera) were conducted on 9 reefs in the central section of the GBR. Inshore (Phillips, Pandora, Fantome, and Great Palm Island) and offshore (Lodestone, John Brewer, Bramble, Faraday, Myrmidon) reefs were represented.On each reef, 3-4 transects (0.6 x 50 m) were video-recorded at 2 m and 5-6 m depth. Under 5 fixed points on 40 stops of the video (200 points per transect), alcyonacean and scleractinian corals were identified to genus level where possible. Morphologically similar genera that were indistinguishable on video (e.g. Efflatounaria and Cespitularia) were pooled. Categories of bleaching extent for colonies were: not bleached, partially bleached (either parts of the colony bleached, or the whole colony clearly paler than typical for that genus), and totally bleached.Video surveys were complemented by visual surveys of the extent of bleaching in each genus along each of the transects.Genetic identities of intracellular dinoflagellates (Symbiodinium, spp.) in samples were analyzed using PCR denaturing gradient gel electrophoresis (DGGE) fingerprinting analysis of the internal transcribed spacer regions 1 and 2 which yielded 12 genetically distinctive Symbiodinium types consisting of 2clade B types (B1n, B36), 9 clade C (C1:1, C1c, C1:1a, C1:3a, C1:2, C1q, C15, C64, C84a), and one clade D (D3).
To assess the relative sensitivities of zooxanthellate octocorals to thermal stress during a bleaching event.To determine whether differences in bleaching susceptibility between species, among individuals of a species, and within colonies could be attributed to different endosymbiotic dinoflagellates.
Soft coral species: Anthelia sp.; Asterospicularia laurae; Briareum sp.1; Briareum sp.2; Cespitularia sp.; Clavularia koellikeri; Efflatounaria sp.; Heteroxenia sp.; Lemnalia sp.; Lobophytum compactum; Nephthea sp.; Paralemnalia digitiformis; Paralemnalia thyrsoides; Pinnigorgia flava; Rhytisma sp.; Sarcophyton sp.; Sinularia cf polydactyla; Sinularia flexibilis; Stereonephthya sp.; Xenia sp.

Lineage

Maintenance and Update Frequency: notPlanned

Notes

Credit
Fabricius, Katharina E, Dr (Principal Investigator)

Modified: 19 09 2025

This dataset is part of a larger collection

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text: westlimit=146.44; southlimit=-19.0; eastlimit=147.4; northlimit=-18.24

Subjects

oceans |

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Other Information

Symbiont specificity and bleaching susceptibility among soft corals in the 1998 Great Barrier Reef mass coral bleaching event: Goulet T, Lajeunesse TC and Fabricius KE (2008) Symbiont specificity and bleaching susceptibility among soft corals in the 1998 Great Barrier Reef mass coral bleaching event. Marine Biology 154:795-804.

local : articleId=7751

Tissue loss and mortality in soft corals following mass-bleaching: Fabricius KE (1999) Tissue loss and mortality in soft corals following mass-bleaching. Coral Reefs 17: 54.

local : articleId=1333

Widespread bleaching of coral reefs in Summer 1998: Fabricius KE (1998) Widespread bleaching of coral reefs in Summer 1998. Australian Coral Reef Society Newsletter 28: 25-26.

local : articleId=1559

Coral reef bleaching in the land down-under - Australia's GBR: Fabricius KE (1998) Coral reef bleaching in the land down-under - Australia's GBR. Oceanic Resource Foundation 2: 4-8.

local : articleId=1558

Identifiers

global : a1b261dc-bc26-4f28-9163-a722fe825979