Marine Heatwaves Transform Coral Symbioses With Enduring Effects.

Fuente: PubMed
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Auteurs principaux: Van Nynatten, Alexander, Cunning, Ross, Tietjen, Kristina L, Baum, Julia K
Format: Artículo científico
Langue:en
Publié: Ecology letters 2025
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author Van Nynatten, Alexander
Cunning, Ross
Tietjen, Kristina L
Baum, Julia K
author_facet Van Nynatten, Alexander
Cunning, Ross
Tietjen, Kristina L
Baum, Julia K
Van Nynatten, Alexander
Cunning, Ross
Tietjen, Kristina L
Baum, Julia K
collection PubMed - marine biology
contents Marine Heatwaves Transform Coral Symbioses With Enduring Effects. Van Nynatten, Alexander Cunning, Ross Tietjen, Kristina L Baum, Julia K Animals Symbiosis Anthozoa Coral Reefs Climate Change Hot Temperature Extreme Heat Climate change-amplified extreme weather events are reshaping ecological communities globally. On coral reefs, heatwaves typically disrupt the obligate coral-algal symbiosis, with symbiont identity a prime determinant of coral resilience to these thermal extremes. Yet, whether heatwaves have long-term effects on coral symbioses remains unclear due to a lack of longitudinal symbiont data. Here, we report on a decadal coral symbiont survey (2013-2023), spanning the most prolonged tropical marine heatwave on record (2015-2016) and its aftermath. Concomitant with mass coral mortality, we document wholesale transformation of the symbiont assemblages in two coral species, the legacy of which was persistent for 7 years post heatwave. We also found evidence suggestive of a symbiont's local extinction, of local human disturbance impeding symbiont recovery, and of new coral recruits hosting symbiont assemblages distinct from survivors. Our study demonstrates heatwaves can have long-lasting impacts on symbioses raising concern for coral resilience to future heatwaves.
format Artículo científico
id pubmed_41241951
institution PubMed
language en
publishDate 2025
publisher Ecology letters
record_format pubmed
spellingShingle Marine Heatwaves Transform Coral Symbioses With Enduring Effects.
Van Nynatten, Alexander
Cunning, Ross
Tietjen, Kristina L
Baum, Julia K
Animals
Symbiosis
Anthozoa
Coral Reefs
Climate Change
Hot Temperature
Extreme Heat
Marine Heatwaves Transform Coral Symbioses With Enduring Effects. Van Nynatten, Alexander Cunning, Ross Tietjen, Kristina L Baum, Julia K Animals Symbiosis Anthozoa Coral Reefs Climate Change Hot Temperature Extreme Heat Climate change-amplified extreme weather events are reshaping ecological communities globally. On coral reefs, heatwaves typically disrupt the obligate coral-algal symbiosis, with symbiont identity a prime determinant of coral resilience to these thermal extremes. Yet, whether heatwaves have long-term effects on coral symbioses remains unclear due to a lack of longitudinal symbiont data. Here, we report on a decadal coral symbiont survey (2013-2023), spanning the most prolonged tropical marine heatwave on record (2015-2016) and its aftermath. Concomitant with mass coral mortality, we document wholesale transformation of the symbiont assemblages in two coral species, the legacy of which was persistent for 7 years post heatwave. We also found evidence suggestive of a symbiont's local extinction, of local human disturbance impeding symbiont recovery, and of new coral recruits hosting symbiont assemblages distinct from survivors. Our study demonstrates heatwaves can have long-lasting impacts on symbioses raising concern for coral resilience to future heatwaves.
title Marine Heatwaves Transform Coral Symbioses With Enduring Effects.
topic Animals
Symbiosis
Anthozoa
Coral Reefs
Climate Change
Hot Temperature
Extreme Heat
url https://pubmed.ncbi.nlm.nih.gov/41241951/