Data

Enhancing Coral Survival on Deployment Devices With Microrefugia

Name: Enhancing Coral Survival on Deployment Devices With Microrefugia
Published: 2026

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/27a6df82-4ee1-4c1e-a1b9-2e8eb679b84f&rft.title=Enhancing Coral Survival on Deployment Devices With Microrefugia&rft.identifier=https://apps.aims.gov.au/metadata/view/27a6df82-4ee1-4c1e-a1b9-2e8eb679b84f&rft.publisher=Australian Institute of Marine Science (AIMS)&rft.description=This study examined the effects of microhabitat features on the survival of Acropora tenuis spat in a year-long experimental field deployment of two types of artificial settlement devices.Fragments of mature gravid Acropora tenuis (Dana 1846) colonies were collected from Backnumbers Reef on the central mid shelf of the Great Barrier Reef ahead of coral spawning in Nov 2018. The corals were transported back to the Australian Institute of Marine Science National Sea Simmulator (SeaSim) facility and kept in temperature controlled outdoor aquaria. Egg-sperm bundles were collected during spawning from six colonies and cross-fertilized. Larvae were maintained in the culture tank until used in the experiment.Two types of experimental settlement devices—lattice-grids and grooved-tiles—were designed and manufactured to test larval settlement choice and post-settlement survival. Prior to settlement, all experimental devices were conditioned in the SeaSim for approximately 4 weeks to develop a biofilm and recruit crustose coralline algae (CCA) for larval settlement induction.Eight days after fertilization larvae were left to settle on the devices for 4 days. Images of the lattice-grids and grooved-tiles racks were taken 9 and 11 days after larval introduction (approx. 5-7 days after settlement).The settlement devices were then deployed at Backnumbers Reef onto three replicate racks on a shallow, central mid-shelf reef of the Great Barrier Reef. Survival of A. tenuis recruits was tracked by assessment of in situ images, taken on SCUBA, of the upper- and under-sides of each device. Images were taken at 41, 95, 185, 246, and 311 days and then imaged again upon retrieval from the field on 16th December 2019 at the final time point of 376 days post settlement.Maintenance and Update Frequency: asNeededStatement: Settlement and survival data were evaluated through image analysis and the manual identification and counting of individual recruits on all surfaces of each device. All settlement data, including numbers of spat and spat locations, as well as the presence of larval aggregations are included in the data file. Field survival estimates are based on lower quality field images of devices, taken in situ, and are less reliable than the initial and final timepoint census data, collected from high resolution AIMS camera trolley images. All data were quality checked after entry.&rft.creator=Australian Institute of Marine Science (AIMS) &rft.date=2026&rft.coverage=westlimit=147.133333; southlimit=-18.5; eastlimit=147.133333; northlimit=-18.5&rft.coverage=westlimit=147.133333; southlimit=-18.5; eastlimit=147.133333; northlimit=-18.5&rft.coverage=westlimit=147.056138; southlimit=-19.268297; eastlimit=147.056138; northlimit=-19.268297&rft.coverage=westlimit=147.056138; southlimit=-19.268297; eastlimit=147.056138; northlimit=-19.268297&rft.coverage=westlimit=147.158697; southlimit=-18.488386; eastlimit=147.158697; northlimit=-18.488386&rft.coverage=westlimit=147.158697; southlimit=-18.488386; eastlimit=147.158697; northlimit=-18.488386&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). (2021). Enhancing Coral Survival on Deployment Devices With Microrefugia. https://apps.aims.gov.au/metadata/view/27a6df82-4ee1-4c1e-a1b9-2e8eb679b84f, accessed[date-of-access].&rft_subject=oceans&rft.type=dataset&rft.language=English Access the data

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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). (2021). Enhancing Coral Survival on Deployment Devices With Microrefugia. https://apps.aims.gov.au/metadata/view/27a6df82-4ee1-4c1e-a1b9-2e8eb679b84f, accessed[date-of-access]".

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This study examined the effects of microhabitat features on the survival of Acropora tenuis spat in a year-long experimental field deployment of two types of artificial settlement devices.

Fragments of mature gravid Acropora tenuis (Dana 1846) colonies were collected from Backnumbers Reef on the central mid shelf of the Great Barrier Reef ahead of coral spawning in Nov 2018. The corals were transported back to the Australian Institute of Marine Science National Sea Simmulator (SeaSim) facility and kept in temperature controlled outdoor aquaria. Egg-sperm bundles were collected during spawning from six colonies and cross-fertilized. Larvae were maintained in the culture tank until used in the experiment.

Two types of experimental settlement devices—lattice-grids and grooved-tiles—were designed and manufactured to test larval settlement choice and post-settlement survival. Prior to settlement, all experimental devices were conditioned in the SeaSim for approximately 4 weeks to develop a biofilm and recruit crustose coralline algae (CCA) for larval settlement induction.

Eight days after fertilization larvae were left to settle on the devices for 4 days. Images of the lattice-grids and grooved-tiles racks were taken 9 and 11 days after larval introduction (approx. 5-7 days after settlement).

The settlement devices were then deployed at Backnumbers Reef onto three replicate racks on a shallow, central mid-shelf reef of the Great Barrier Reef. Survival of A. tenuis recruits was tracked by assessment of in situ images, taken on SCUBA, of the upper- and under-sides of each device. Images were taken at 41, 95, 185, 246, and 311 days and then imaged again upon retrieval from the field on 16th December 2019 at the final time point of 376 days post settlement.

Lineage

Maintenance and Update Frequency: asNeeded

Statement: Settlement and survival data were evaluated through image analysis and the manual identification and counting of individual recruits on all surfaces of each device. All settlement data, including numbers of spat and spat locations, as well as the presence of larval aggregations are included in the data file. Field survival estimates are based on lower quality field images of devices, taken in situ, and are less reliable than the initial and final timepoint census data, collected from high resolution AIMS camera trolley images. All data were quality checked after entry.

Notes

Credit
Heywood, AJ. (AIMS)

Credit
Guiliano, C. (AIMS)

Credit
Negri, AP. (AIMS)

Credit
Randall, CJ. Australian Institute of Marine Science (AIMS)

Modified: 11 09 2026

This dataset is part of a larger collection

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text: westlimit=147.133333; southlimit=-18.5; eastlimit=147.133333; northlimit=-18.5

text: westlimit=147.056138; southlimit=-19.268297; eastlimit=147.056138; northlimit=-19.268297

text: westlimit=147.158697; southlimit=-18.488386; eastlimit=147.158697; northlimit=-18.488386

Subjects

oceans |

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Other Information

Randall CJ, Giuliano C, Heyward AJ and Negri AP (2021) Enhancing Coral Survival on Deployment Devices With Microrefugia. Front. Mar. Sci. 8:662263. doi: 10.3389/fmars.2021.662263

doi : https://doi.org/10.3389/fmars.2021.662263 DOI Link

Complete settlement and survival data

url : https://api.aims.gov.au/data-v2.0/27a6df82-4ee1-4c1e-a1b9-2e8eb679b84f/files/Data_All_CR_metadata record.xlsx External Link

Identifiers

global : 27a6df82-4ee1-4c1e-a1b9-2e8eb679b84f