Modeling the effects of climate change on the habitat suitability of Mediterranean gorgonians DOI Creative Commons
Nicolò Bellin, Valeria Rossi

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: May 4, 2023

Abstract Multiple stressors including global warming increasingly threaten the distribution and abundance of gorgonian forests. We built species models (SDM) combined with machine learning algorithms, to compare ecological niche three Mediterranean (Paramuricea clavata,Eunicella cavoliniiandEunicella singularis)and response climate change under worst IPCC scenario RCP8.5. Three Machine Learning models, XGBoost, Random Forest K-nearest neighbour, 23 physico-chemical 4 geophysical environmental variables were used obtain potential habitat suitability future projections (2040–2050) their in Sea. The sensitivity uncertainty analysis was identify most important shaping disentangle interaction terms among different variables. For all species, bathymetry main variable influencing suitability, higher interactions silicate, salinity concavity. In climatic conditions,P. clavatawas expected shift its from lower latitudes, mainly Adriatic bothE. cavoliniiandE. singularis, a general reduction predicted. particular,E. cavoliniiwas reduce occupancy area 49% suggesting that symbiotic algae (zooxanthellae) may not be responsible corresponding susceptibility holobiont thermal stresses change.

Language: Английский

The Evolution of Coral Reef under Changing Climate: A Scientometric Review DOI Creative Commons
Thirukanthan Chandra Segaran, Mohamad Nor Azra, Fathurrahman Lananan

et al.

Animals, Journal Year: 2023, Volume and Issue: 13(5), P. 949 - 949

Published: March 6, 2023

In this scientometric review, we employ the Web of Science Core Collection to assess current publications and research trends regarding coral reefs in relation climate change. Thirty-seven keywords for change seven were used analysis 7743 articles on The field entered an accelerated uptrend phase 2016, it is anticipated that will last next 5 10 years publication citation. United States Australia have produced greatest number field. A cluster (i.e., focused issue) showed bleaching dominated literature from 2000 2010, ocean acidification 2010 2020, sea-level rise, as well central Red Sea (Africa/Asia), 2021. Three different types appear based which are (i) most recent (2021), (ii) influential (highly cited), (iii) mostly (frequently article) Great Barrier Reef, found waters Australia, thought be subject reef research. Interestingly, climate-induced temperature changes “ocean warming” “sea surface temperature” significant dominant area.

Language: Английский

Citations

22
Heterotrophic feeding modulates the effects of microplastic on corals, but not when combined with heat stress DOI Creative Commons
María López-Hernández, Vanessa Tirpitz,

Marie-Sa Do

et al.

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 972, P. 179026 - 179026

Published: March 13, 2025

Language: Английский

Citations

1
Consistent responses of coral microbiome to acute and chronic heat stress exposures DOI
Wentao Zhu, Hao Wang, Xinke Li

et al.

Marine Environmental Research, Journal Year: 2023, Volume and Issue: 185, P. 105900 - 105900

Published: Jan. 31, 2023

Language: Английский

Citations

16
Effects of Ocean Warming on the Underexplored Members of the Coral Microbiome DOI Creative Commons
Justin Maire, Patrick Buerger, Wing Yan Chan

et al.

Integrative and Comparative Biology, Journal Year: 2022, Volume and Issue: 62(6), P. 1700 - 1709

Published: March 6, 2022

Abstract The climate crisis is one of the most significant threats to marine ecosystems. It leading severe increases in sea surface temperatures and frequency magnitude heatwaves. These changing conditions are directly impacting coral reef ecosystems, which among biodiverse ecosystems on Earth. Coral-associated symbionts particularly affected because summer heatwaves cause bleaching—the loss endosymbiotic microalgae (Symbiodiniaceae) from tissues, starvation death. Symbiodiniaceae bacteria have been extensively studied context change, especially terms community diversity dynamics. However, data other microorganisms their response change scarce. Here, we review current knowledge how increasing affect understudied coral-associated such as archaea, fungi, viruses, protists than Symbiodiniaceae, well microbe-microbe interactions. We show that coral-microbe symbiosis equilibrium at risk under predicted future argue conservation initiatives should include microbe-focused approaches.

Language: Английский

Citations

18
Unveiling microbiome changes in Mediterranean octocorals during the 2022 marine heatwaves: quantifying key bacterial symbionts and potential pathogens DOI Creative Commons
Camille Prioux, Romie Tignat-Perrier, Ophélie Gervais

et al.

Microbiome, Journal Year: 2023, Volume and Issue: 11(1)

Published: Dec. 5, 2023

Climate change has accelerated the occurrence and severity of heatwaves in Mediterranean Sea poses a significant threat to octocoral species that form foundation marine animal forests (MAFs). As coral health intricately relies on symbiotic relationships established between corals microbial communities, our goal was gain deeper understanding role bacteria observed tissue loss key following unprecedented 2022.Using amplicon sequencing taxon-specific qPCR analyses, we unexpectedly found absolute abundance major bacterial symbionts, Spirochaetaceae (C. rubrum) Endozoicomonas (P. clavata), remained, most cases, unchanged colonies with 0% 90% loss. These results suggest impairment not due main symbionts. However, increase total opportunists, including putative pathogens such as Vibrio, which evident when only their relative considered. In addition, there no clear relation symbiont intensity thermal stress, suggesting factors other than temperature may have influenced differential response microbiomes at different sampling sites.Our indicate octocorals is directly caused by decline symbionts but proliferation opportunistic pathogenic bacteria. Our findings thus underscore significance considering both quantification approaches evaluating impact stressors microbiome does accurately depict actual changes microbiome. Consequently, this research enhances comprehension intricate interplay host organisms, microbiomes, environmental stressors, while offering valuable insights into ecological implications forests. Video Abstract.

Language: Английский

Citations

10
Exploring the response of a key Mediterranean gorgonian to heat stress across biological and spatial scales DOI Creative Commons
Daniel Gómez‐Gras, Nathaniel Bensoussan, Jean‐Baptiste Ledoux

et al.

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Dec. 6, 2022

Abstract Understanding the factors and processes that shape intra-specific sensitivity to heat stress is fundamental better predicting vulnerability of benthic species climate change. Here, we investigate response a habitat-forming Mediterranean octocoral, red gorgonian Paramuricea clavata (Risso, 1826) thermal at multiple biological geographical scales. Samples from eleven P. populations inhabiting four localities separated by hundreds more than 1500 km coast with contrasting histories were exposed critical temperature threshold (25 °C) in common garden experiment aquaria. Ten 11 lacked thermotolerance experimental conditions provided days 25 °C), 100% or almost colony mortality end experiment. Furthermore, found no significant association between local average regimes nor recent history (i.e., water temperatures 3 months prior experiment) population thermotolerance. Overall, our results suggest adaptation and/or acclimation warmer have limited role stress. The study also confirms this warm across its distributional range questions adaptive capacity under ocean warming conditions. However, important inter-individual variation was within populations, particularly those most severe marine heatwaves. These observations could harbor potential future acting on standing genetic divergent selection) environmentally-induced phenotypic intra- intergenerational plasticity).

Language: Английский

Citations

15
Microbe, climate change and marine environment: Linking trends and research hotspots DOI
Thirukanthan Chandra Segaran, Mohamad Nor Azra, Fathurrahman Lananan

et al.

Marine Environmental Research, Journal Year: 2023, Volume and Issue: 189, P. 106015 - 106015

Published: May 24, 2023

Language: Английский

Citations

9
Inter- and intraspecific diversity in bacterial communities associated with two crustose coralline algae from the NW Mediterranean Sea DOI
Elisabetta Manea, Lorenzo Bramanti, Laura Pezzolesi

et al.

Coral Reefs, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 3, 2025

Language: Английский

Citations

0
Unraveling the Impact of Marine Heatwaves on the Eukaryome of the Emblematic Mediterranean Red Coral Corallium rubrum DOI Creative Commons
Camille Prioux, Christine Ferrier‐Pagès, Javier del Campo

et al.

ISME Communications, Journal Year: 2025, Volume and Issue: 5(1)

Published: Jan. 1, 2025

Global warming is intensifying heatwaves worldwide, leading to more frequent and severe temperature extremes. This study investigates the impact of unprecedented 2022 Mediterranean on coral eukaryome, which has received little attention despite its known importance holobiont functioning. Fifty-six colonies iconic red Corallium rubrum from Sea were collected at different sites, depths, health states. The microeukaryotic communities analyzed using an 18S rRNA gene metabarcoding approach. Primers designed reduce amplification sequences while being universal for microeukaryotes. Our results showed that eukaryome was dominated by Dino-Group I, Licnophoridae, Labyrinthulomycetes in control sites not affected heat waves. In heat-affected colonies, composition changed, with relative abundances Ephelotidae, Exobasidiomycetes, Corallicolidae, Labyrinthulomycetes, and/or epibionts Phaeophyceae increasing depending intensity stress experienced colonies. It thus possible link colony changes eukaryome. Finally, we illustrated putative interactions (competition, predator-prey relationship, parasitism) occurring within C. could explain compositional observed under stress. findings improve our understanding ecological effects marine ecosystems.

Language: Английский

Citations

0
Differential apicomplexan presence predicts thermal stress mortality in the Mediterranean coral Paramuricea clavata DOI Creative Commons
Anthony M. Bonacolta,

Jordi Miravall,

Daniel Gómez‐Gras

et al.

Environmental Microbiology, Journal Year: 2023, Volume and Issue: 26(1)

Published: Dec. 10, 2023

Abstract Paramuricea clavata is an ecosystem architect of the Mediterranean temperate reefs that currently threatened by episodic mass mortality events related to global warming. The microbiome may play active role in thermal stress susceptibility corals, potentially holding answer as why corals show differential sensitivity heat stress. To investigate this, prokaryotic and eukaryotic P. collected from around was characterised before experimental determine if its microbial composition influences response holobiont. We found members clavata's microeukaryotic community were significantly correlated with sensitivity. Syndiniales Dino‐Group I Clade 1 enriched thermally resistant while apicomplexan corallicolids susceptible corals. hypothesise following be caused a shift apparent commensalism parasitism corallicolid‐coral host relationship driven added Our results potential importance rest understanding provide useful tool guide conservation efforts future research into coral‐associated microeukaryotes.

Language: Английский

Citations

7