A tropical Australian refuge for photosymbiotic benthic fauna

Richards, Zoe T.; Garcia, Rodrigo; Moore, Glenn I.; Fromont, Jane; Kirkendale, Lisa; Bryce, Monika; Bryce, Clay; Hara, Ana; Ritchie, Jenelle; Gomez, Oliver; Whisson, Corey; Allen, Mark B.; Wilson, Nerida G.

doi:10.1007/s00338-019-01809-5

Cited by 18 publications

(26 citation statements)

References 22 publications

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“…Many other sites throughout the Pacific and Indian Oceans experienced extensive coral mortality during the mass bleaching from 2014 to 2016 (Hughes et al 2017;Burt et al 2019;Head et al 2019;Raymundo et al 2019;Vargas-Angel et al 2019). However, some sites such as the Galapagos (Riegl et al 2019), North Western Australia (Richards et al 2019), and our data from Kāne'ohe Bay, show relatively little coral mortality associated with this extensive thermal stress. Due to the resistance of some genotypes of coral to Fig.…”

Section: Discussionmentioning

confidence: 53%

“…Resilience has been attributed to a few ''refuge'' or ''oases'' reefs in the Pacific (Cacciapaglia and van Woesik 2015;Guest et al 2016Guest et al , 2018Richards et al 2019;Riegl et al 2019), but the response of corals to thermal stress in these refuge habitats is quite variable. Corals in French Polynesia were assessed for bleaching susceptibility during four bleaching episodes from 1991 to 2007 (Pratchett et al 2013).…”

Section: Discussionmentioning

confidence: 99%

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Coral community resilience to successive years of bleaching in Kāne‘ohe Bay, Hawai‘i

Ritson‐Williams

Gates

2020

Coral Reefs

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The Hawaiian Islands are at the northern edge of coral reef distributions, and corals found there are exposed to large seasonal temperature changes. Historically, coral bleaching in the Hawaiian Islands was extremely rare and had only occurred in 1996. However, in the summers of both 2014 and 2015, successive bleaching events occurred in Kāne'ohe Bay, O'ahu. Seawater temperatures were above 28°C for approximately 1 month in 2014 and 3 months in 2015 and peaked above 30°C in both years. Patterns of bleaching did not vary among the three sites within Kāne'ohe Bay. Severe bleaching and paling covered 77 and 55% of reefs in 2014 and 2015, respectively. Different species showed a range of susceptibility with 80-100% of Pocillopora spp. bleaching in both years, but less than 50% bleaching of Porites compressa and Montipora capitata in Kāne'ohe Bay. Less than 1% of the encrusting coral Leptastrea purpurea colonies bleached in both years. Sixty individual colonies of P. compressa and M. capitata and 28 colonies of Pocillopora damicornis were tagged and monitored for rates of bleaching, recovery and mortality throughout the two-year period. Most of the colonies that bleached recovered their symbionts within 3-4 months, though P. compressa visually recovered more rapidly than M. capitata and P. damicornis. Cumulatively, 19% of P. damicornis, 10% of M. capitata and no P. compressa died by May 2016. Partial mortality within a colony did not occur in 2014, but impacted 13% of the colonies in 2015, with P. damicornis and M. capitata having higher rates of partial mortality than P. compressa. Relatively, low susceptibility in the dominant species and low rates of mortality combined with rapid rates of recovery show coral resilience to anomalously high temperatures in Kāne'ohe Bay, O'ahu. Keywords Climate change Á Resistance Á Recovery Á Thermal stress Á Coral bleaching Topic Editor Emma Camp

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Section: Discussionmentioning

confidence: 53%

Section: Discussionmentioning

confidence: 99%

Coral community resilience to successive years of bleaching in Kāne‘ohe Bay, Hawai‘i

Ritson‐Williams

Gates

2020

Coral Reefs

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“…In the austral summer of 2016, a marine heatwave associated with strong El Niño conditions caused unprecedented mass bleaching in NW Australia, including the Kimberley region (Le Nohaïc et al, 2017;Gilmour et al, 2019; but see Richards et al, 2019). To quantify coral recovery and mortality following this bleaching event, reef-wide coral health surveys were conducted at Shell Island 6 months after peak bleaching from 18 to 21 October 2016 using the same methods that were used by Le Nohaïc et al (2017) to assess coral health prior to and during peak bleaching (January 13-17 and April 6-9, 2016, respectively).…”

Section: Reef-wide Coral Health Surveys and Environmental Monitoringmentioning

confidence: 99%

Thermally Variable, Macrotidal Reef Habitats Promote Rapid Recovery From Mass Coral Bleaching

et al. 2020

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“…During a biodiversity study of the Bonaparte Archipelago in September 2016 [32], an encrusting sponge resembling T. hoshinota was observed at two sites, growing on Acropora tenuis, A. hyacinthus ( Figure 2) and Tridacna squamosa. Five samples of the sponge were collected, photographed, and preserved in 96% ethanol for subsequent molecular and morphological analysis.…”

Section: Methodsmentioning

confidence: 99%

First Report of the Coral-Killing Sponge Terpios hoshinota Rützler and Muzik, 1993 in Western Australia: A New Threat to Kimberley Coral Reefs?

2019

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The cyanobacteriosponge Terpios hoshinota has been reported throughout the Indo-Pacific including the Great Barrier Reef, Australia. The species encrusts live coral, giant clams, and other benthos and can be a threat to benthic communities on coral reefs. The Kimberley region of Western Australia has some of the least impacted reefs globally. We report for the first time the presence of T. hoshinota in the eastern Indian Ocean on Kimberley inshore coral reefs. Given its invasive potential, reef health surveys should include this species, and monitoring approaches developed to audit the remote Kimberley for this and other invasive species.

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A tropical Australian refuge for photosymbiotic benthic fauna

Cited by 18 publications

References 22 publications

Coral community resilience to successive years of bleaching in Kāne‘ohe Bay, Hawai‘i

Coral community resilience to successive years of bleaching in Kāne‘ohe Bay, Hawai‘i

Thermally Variable, Macrotidal Reef Habitats Promote Rapid Recovery From Mass Coral Bleaching

First Report of the Coral-Killing Sponge Terpios hoshinota Rützler and Muzik, 1993 in Western Australia: A New Threat to Kimberley Coral Reefs?

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