Synergies between local and climate-driven impacts on coral reefs in the Tropical Pacific: A review of issues and adaptation opportunities

Dutra, Leo X.C.; Haywood, Michael D. E.; Singh, Shubha S.; Ferreira, Marta; Johnson, J. E.; Veitayaki, Joeli; Kininmonth, Stuart; Morris, Cherrie W.; Piovano, Susanna

doi:10.1016/j.marpolbul.2020.111922

Cited by 32 publications

(22 citation statements)

References 222 publications

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“…Climate change is impacting the social‐ecological‐environmental system in the Pacific (Bograd et al., 2019). Oceanic warming is already stressing coral reefs around the tropical Pacific (e.g., Dutra et al., 2021), with associated consequences to fisheries (e.g., Venegas et al., 2019), tourism (e.g., Curnock et al., 2019), and potentially the buffering ability of reefs against coastal inundations from waves (e.g., Hoeke et al., 2013). The warming atmosphere is increasing evapotranspiration over the Pacific Islands (e.g., in Hawaii; Giambelluca et al., 2009), which will enhance the drought risk, especially for places that experience decreased rainfall (e.g., in Fiji; Deo, 2011).…”

Section: Introductionmentioning

confidence: 99%

Assessment of 21st Century Changing Sea Surface Temperature, Rainfall, and Sea Surface Height Patterns in the Tropical Pacific Islands Using CMIP6 Greenhouse Warming Projections

Dhage

Widlansky

2022

Earth's Future

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Tropical Pacific Islands face unknown rates of future warming due to increased greenhouse gas emissions, but almost certain changing climate stresses. Continued global warming is projected to cause further changes to the mean conditions and variability of sea surface temperature (SST), rainfall, and sea surface height (SSH). Previous climate model simulations showed that the equatorial Pacific is likely to have greater increased rainfall, compared to elsewhere in the tropics. There is less certainty about future rainfall changes away from the equator, including around many of the numerous tropical Pacific Islands. Here, we assess the Coupled Model Intercomparison Project‐phase 6 (CMIP6) as it relates to future changes of SST, rainfall, and SSH in the tropical Pacific. Focus is on the island regions of Hawaii, Guam, and American Samoa, as well as the Niño 3.4 region. We consider two development narratives of the 21st century by assessing the SSP2‐4.5 and SSP5‐8.5 experiments, and describe climate changes in the tropical Pacific relative to the recent historical conditions that are likely for either 1.5°C or 3°C of global mean surface temperature (GMST) warming above preindustrial levels. Consistent with prior‐generation climate models, we find that future rainfall increases the most where SST warming is greatest, and also an overall increase of interannual variability associated with the El Niño‐Southern Oscillation (ENSO) affecting rainfall and SSH. We describe changes in SST, rainfall, and SSH for particular warming amounts, and make comparisons with time‐based climate assessments during the 21st century, which are relevant results toward better understanding uncertainty and supporting adaptation efforts in the tropical Pacific Islands.

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Section: Introductionmentioning

confidence: 99%

Assessment of 21st Century Changing Sea Surface Temperature, Rainfall, and Sea Surface Height Patterns in the Tropical Pacific Islands Using CMIP6 Greenhouse Warming Projections

Dhage

Widlansky

2022

Earth's Future

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“…Maintaining a healthy relationship between both coral and endosymbiont is essential in preserving their homeostasis and resilience (Petrou et al, 2018). Photosynthetic endosymbiont species which belong to the highly diverse family Symbiodiniaceae influences the survivability and fitness of the corals, especially under stress conditions (Tan et al, 2020;Dutra et al, 2021).…”

Section: Coral Reefs and Their Endosymbiontsmentioning

confidence: 99%

“…This phenomenon is triggered by stress events caused by climate change, particularly ocean warming comprising, but not limited to, the elevation of sea surface temperature in conjunction with upraised sunlight irradiance (Nand et al, 2021). Rising sea surface temperature is adversely influencing the growth of corals, as well as reef building-corals structures by reducing their skeletal density, augmentation, and calcification rate (Dutra et al, 2021). Therefore, if initiatives to reduce climate change causes are not implemented, coral bleaching events are projected to cause coral reef loss in the future (Buerger et al, 2020;Dutra et al, 2021).…”

Section: Coral Bleaching Influenced By Climate Changementioning

confidence: 99%

“…However, global climate change is detrimentally affecting the mutualistic association of coralendosymbionts, exposing the reefs to bleach and mass mortality, causing negative consequences to marine life and human populations (Ismail & Goeben, 2020;Dutra et al, 2021). The bleaching event that occurred in 1998 not only adversely impacted global coral reefs but also our Malaysia coral reefs with up to 40% of coral mortality due to climate change (Waheed & Hoeksema, 2014;Qin et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Symbiodinium IN CORAL REEFS AND ITS ADAPTATION RESPONSES TOWARD CORAL BLEACHING EVENTS: A REVIEW

SHAFIQA-YUSOF¹,

RADZI

2022

MAB

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Symbiodinium is a category of symbiotic dinoflagellates commonly associated with various reef-building corals. Detrimental impacts of global climate change worsen the mutualistic association of coral-Symbiodinium, endangering the reefs to the bleaching and mass mortality phenomenon. Destruction of coral reef ecosystems has adverse effects not only on marine life but also on the human population. It has been proposed that to protect the coral reefs, an exclusive selection of thermal-tolerance traits in Symbiodinium will increase the survivability of coral reefs. However, there are still limited findings on the coral-endosymbiont resistance under adverse environments. Thus, this review aims to introduce shortly the coral reefs, Symbiodinium, and coral bleaching events, as well as to provide brief reviews of cellular and molecular responses in Symbiodinium to tackle thermal stress. Considering the potential applications of this knowledge to confront the threat of coral bleaching prevalence, more study especially in terms of cellular and molecular responses by omics approaches is needed to enhance the understanding of coral-Symbiodinium tolerance toward climate change, particularly heat stress.

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“…Climate change, through increasing temperature and carbon dioxide, impacts all coral reefs, though the responses are variable across coral reefs, with highest global losses in the Eastern Pacific, South Asia and the Great Barrier Reef. Local and regional pressures are also driving negative impacts, through overfishing and improper fishing practices, coastal development, sedimentation, land-based sources of pollution and marine pollution (Brodie et al, 2010(Brodie et al, , 2012Devlin et al, 2012;Duran et al, 2018;Dutra et al, 2021).…”

mentioning

confidence: 99%

Coral reefs: The good and not so good news with future bright and dark spots for coral reefs through climate change

Devlin

2022

Global Change Biology

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Synergies between local and climate-driven impacts on coral reefs in the Tropical Pacific: A review of issues and adaptation opportunities

Cited by 32 publications

References 222 publications

Assessment of 21st Century Changing Sea Surface Temperature, Rainfall, and Sea Surface Height Patterns in the Tropical Pacific Islands Using CMIP6 Greenhouse Warming Projections

Assessment of 21st Century Changing Sea Surface Temperature, Rainfall, and Sea Surface Height Patterns in the Tropical Pacific Islands Using CMIP6 Greenhouse Warming Projections

Symbiodinium IN CORAL REEFS AND ITS ADAPTATION RESPONSES TOWARD CORAL BLEACHING EVENTS: A REVIEW

Coral reefs: The good and not so good news with future bright and dark spots for coral reefs through climate change

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