Simulation-based inference advances water quality mapping in shallow coral reef environments DOI Creative Commons
Pirta Palola, Theenathayalan Varunan, Cornelius Schröder

et al.

Royal Society Open Science, Journal Year: 2025, Volume and Issue: 12(5)

Published: May 1, 2025

Human activities are altering coral reef ecosystems worldwide. Optical remote sensing via satellites and drones can offer novel insights into where how reefs changing. However, interpretation of the observed optical signal (remote-sensing reflectance) is an ill-posed inverse problem, as there may be multiple different combinations water constituents, depth benthic reflectance that result in a similar signal. Here, we apply new approach, simulation-based inference, for addressing problem marine sensing. The inference algorithm combines physics-based analytical modelling with approximate Bayesian machine learning. input to remote-sensing reflectance, output likely range (posterior probability density) phytoplankton suspended minerals concentrations, coloured dissolved organic matter absorption, wind speed depth. We compare models trained simulated hyperspectral or multispectral spectra characterized by signal-to-noise ratios. model situ radiometric data ( n = 4) drone imagery collected on Tetiaroa atoll (South Pacific). show constituent concentrations estimated from optically shallow environments, assuming single cover. Future developments should consider spectral mixing cover types.

Language: Английский

Coral reefs in peril in a record-breaking year DOI
Ove Hoegh‐Guldberg, William Skirving, Sophie Dove

et al.

Science, Journal Year: 2023, Volume and Issue: 382(6676), P. 1238 - 1240

Published: Dec. 7, 2023

Climate change and its impacts on coral reefs have reached unchartered territory.

Language: Английский

Citations

45
Probiotics reshape the coral microbiome in situ without detectable off-target effects in the surrounding environment DOI Creative Commons
Nathalia Delgadillo-Ordoñez, Neus Garcias‐Bonet, Inês Raimundo

et al.

Communications Biology, Journal Year: 2024, Volume and Issue: 7(1)

Published: April 9, 2024

Beneficial microorganisms for corals (BMCs), or probiotics, can enhance coral resilience against stressors in laboratory trials. However, the ability of probiotics to restructure microbiome situ is yet be determined. As a first step elucidate this, we inoculated putative probiotic bacteria (pBMCs) on healthy colonies Pocillopora verrucosa Red Sea, three times per week, during 3 months. pBMCs significantly influenced microbiome, while surrounding seawater and sediment remained unchanged. The genera Halomonas, Pseudoalteromonas, Bacillus were enriched probiotic-treated corals. Furthermore, treatment also correlated with an increase other beneficial groups (e.g., Ruegeria Limosilactobacillus), decrease potential pathogens, such as Vibrio. all (treated non-treated) throughout experiment, could not track health improvements protection stress. Our data indicate that healthy, therefore stable, microbiomes restructured situ, although repeated continuous inoculations may required these cases. Further, our study provides supporting evidence that, at studied scale, have no detectable off-target effects near

Language: Английский

Citations

19
No coral recovery three years after a major bleaching event in reefs in the Southwestern Atlantic refugium DOI

Beatriz M. Corazza,

Carlos H. F. Lacerda,

Arthur Z. Güth

et al.

Marine Biology, Journal Year: 2024, Volume and Issue: 171(5)

Published: April 18, 2024

Language: Английский

Citations

16
The effect of reef morphology on coral recruitment at multiple spatial scales DOI Creative Commons
Rachel R. Carlson, Larry B. Crowder, Roberta E. Martin

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(4)

Published: Jan. 8, 2024

Coral reefs are in decline worldwide, making it increasingly important to promote coral recruitment new or degraded habitat. reef morphology—the structural form of substrate—affects many aspects function, yet the effect morphology on is not well understood. We used structure-from-motion photogrammetry and airborne remote sensing measure (rugosity, curvature, slope, fractal dimension) across a broad continuum spatial scales evaluated three broadcast-spawning genera. also measured other environmental biotic factors such as fish density, adult cover, hydrodynamic larval import, depth recruitment. All variables combined explained 72% study region. Coarse rugosity curvature mapped at ≥2 m resolution—such large colonies, knolls, boulders—were positively correlated with recruitment, explaining 22% variation Morphology finer (≤32 cm resolution) was significant. Hydrodynamic import related Porites Montipora spp., grazer density linked significantly lower all In addition, morphology, had differential effects genera, reflecting genus-specific life history traits, model performance gonochoric species. Overall, key indicator potential that can be detected by sensing, allowing sinks identified factored into restoration actions.

Language: Английский

Citations

13
A unique time-dependent deformation behavior of coral reef limestone DOI Creative Commons
Kai Wu, Qingshan Meng, Le Luo

et al.

Journal of Rock Mechanics and Geotechnical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: May 1, 2024

Catastrophic failure in engineering structures of island reefs would occur when the tertiary creep initiates coral reef limestone with a transition from short- to long-term load. Due complexity biological structures, underlying micro-behaviors involving time-dependent deformation are poorly understood. For this, an abnormal phenomenon was observed where axial and lateral deformations were mutually independent by series triaxial tests under constant stress strain rate conditions. The significantly large implies that process cannot be described continuum mechanics regime. Herein, it is hypothesized sliding mechanism crystal cleavages dominates limestone. Then, approaches polarizing microscope (PM) scanning electronic (SEM) utilized validate hypothesis. It shows behavior combats conventional micro-mechanisms at certain condition. former sensitive time rate, merely activated

Language: Английский

Citations

9
Restoration cannot be scaled up globally to save reefs from loss and degradation DOI
Clelia Mulà, Corey J. A. Bradshaw, Mar Cabeza

et al.

Nature Ecology & Evolution, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Language: Английский

Citations

1
Drivers of coastal benthic communities in a complex environmental setting DOI
Yu-Ting Lin, Pierre-Alexandre Château, Yoko Nozawa

et al.

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 203, P. 116462 - 116462

Published: May 14, 2024

Language: Английский

Citations

7
Palaeontological signatures of the Anthropocene are distinct from those of previous epochs DOI Creative Commons
Mark Williams, Jan Zalasiewicz,

Anthony D. Barnosky

et al.

Earth-Science Reviews, Journal Year: 2024, Volume and Issue: 255, P. 104844 - 104844

Published: June 21, 2024

The "Great Acceleration" of the mid-20th century provides causal mechanism Anthropocene, which has been proposed as a new epoch geological time beginning in 1952 CE. Here we identify key parameters and their diagnostic palaeontological signals including rapid breakdown discrete biogeographical ranges for marine terrestrial species, changes to ecologies resulting from climate change ecological degradation, spread exotic foodstuffs beyond range, accumulation reconfigured forest materials such medium density fibreboard (MDF) all being symptoms Great Acceleration. We show: 1) how Anthropocene successions North America, South Africa, Oceania, Europe, Asia can be correlated using signatures highly invasive species that demonstrate growing interconnectivity human systems; 2) unique depositional settings landfills may concentrate remains organisms far geographical range environmental tolerance; 3) preserve long-lived, record within post-mid-20th deposits. Collectively these provide global signature is distinct past records deep-time biotic change, those Holocene.

Language: Английский

Citations

5
Paleo reefs provide clues for contemporary climate-change refugia DOI Creative Commons
Robert van Woesik

Cell Reports Sustainability, Journal Year: 2025, Volume and Issue: unknown, P. 100289 - 100289

Published: Jan. 1, 2025

SummaryMarine heatwaves are increasing in intensity and frequency, causing worldwide coral bleaching, reductions cover, shifts species composition. Recent studies have found, however, that inshore turbid reefs more resistant to heat stress than offshore clear-water reefs. Inshore reefs, therefore, may play a critical role as climate-change refuges for contemporary subjected marine heatwaves. This perspective explores the importance of past, present, future. Paleo records show were also crucial during historically warm periods. Yet, especially vulnerable pollution land-use-change runoff, which absent paleo times. Therefore, need strategic management protection maintain their refugia oceans continue warm.

Language: Английский

Citations

0
Emergent patterns of reef fish diversity correlate with coral assemblage shifts along the Great Barrier Reef DOI Creative Commons
F. Javier González‐Barrios, Sally A. Keith,

Michael J. Emslie

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 13, 2025

Abstract Escalating climate and anthropogenic disturbances draw into question how stable large-scale patterns in biological diversity are the Anthropocene. Here, we analyse of reef fish have changed from 1995 to 2022 by examining local species dissimilarity along a large latitudinal gradient Great Barrier Reef what extent this correlates with changes coral cover composition. We find that richness followed expected pattern (i.e., greater toward lower latitudes), yet has undergone significant change across space time. declines at latitudes recent periods but high variability higher latitudes. turnover continuously increased over time all did not show evidence return. Altered characterised heterogeneous trophic groups gradient. Shifts composition correlate more strongly than fluctuations cover. Our findings provide insight which classic macroecological maintained Anthropocene, ultimately questioning whether these decoupling their original underlying drivers.

Language: Английский

Citations

0