Sentinels for future coral reef conditions: assessment of environmental variability and water quality in semi-enclosed inland bays in the southern Caribbean DOI Creative Commons
Chiara de Jong,

Iris van Os,

Guadalupe Sepúlveda-Rodríguez

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Oct. 6, 2023

Abstract The mangrove-seagrass-coral reef continuum is of immense ecological and socio-economic importance, supporting biodiversity, carbon storage, coastal protection, fisheries, tourism. presence extreme environmental conditions along this could support adaptive refugia for climate-sensitive taxa such as reef-building corals but physicochemical are rarely assessed at sufficient spatiotemporal resolution. Furthermore, development low water quality increasingly threaten these interconnected ecosystems. Yet, time-integrated pollution monitoring absent most locations. Here, we used a multi-disciplinary approach to assess benthic cover, coral diversity, >20 abiotic parameters characterizing two mangrove- seagrass-dominated inland bays nearby reefs in Curaçao (southern Caribbean) during the cool, dry season warm, wet season. This was combined with using bioindicators nutrients trace metal (inland only), passive samplers bioassays organic chemical (all four sites) revealed previously undocumented extent strong diel seasonal variability bays, temperature, pH dissolved oxygen frequently reaching values predicted under moderate-to-severe future climate scenarios. In addition, had greater nutrient concentrations (especially ammonium) ecotoxicological risks than due run-off, industrial- wastewater effluents, ports boating. Overall, our findings show that Curaçao’s have significant potential serve natural laboratories study effects ocean on resident situ . however applies within context fluctuations caveat co-occurring stressors. Our work confirms important role mangrove seagrass habitats resilience hotspots also highlights urgent need improve monitoring, protection valuable continuum.

Language: Английский

Corals at the edge of environmental limits: A new conceptual framework to re-define marginal and extreme coral communities DOI Creative Commons
Verena Schoepf, Justin H. Baumann, Daniel J. Barshis

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 884, P. 163688 - 163688

Published: April 25, 2023

The worldwide decline of coral reefs has renewed interest in communities at the edge environmental limits because they have potential to serve as resilience hotspots and climate change refugia, can provide insights into how might function future ocean conditions. These are often referred marginal or extreme but few definitions exist usage these terms therefore been inconsistent. This creates significant challenges for categorising poorly studied synthesising data across locations. Furthermore, this impedes our understanding persist their lessons reef survival. Here, we propose that related distinct a novel conceptual framework redefine them. Specifically, define extremeness solely based on conditions (i.e., large deviations from optimal mean and/or variance) marginality ecological criteria altered community composition ecosystem functioning). joint independent assessment is critical avoid common pitfalls where existing outside presumed development automatically considered inferior more traditional settings. We further evaluate differential natural laboratories, discuss strategies conservation management well priorities research. Our new classification provides an important tool improve corals leverage knowledge optimise conservation, restoration rapidly changing ocean.

Language: Английский

Citations

37
Including environmental and climatic considerations for sustainable coral reef restoration DOI Creative Commons
Heidi L. Burdett, Rebecca Albright, Gavin L. Foster

et al.

PLoS Biology, Journal Year: 2024, Volume and Issue: 22(3), P. e3002542 - e3002542

Published: March 19, 2024

Coral reefs provide ecosystem benefits to millions of people but are threatened by rapid environmental change and ever-increasing human pressures. Restoration is becoming a priority strategy for coral reef conservation, yet implementation remains challenging it increasingly apparent that indirect conservation restoration approaches will not ensure the long-term sustainability reefs. The important role conditions in practice currently undervalued, carrying substantial implications success. Giving paramount importance conditions, particularly during pre-restoration planning phase, has potential bring about considerable improvements innovation. This Essay argues risk may be reduced adopting an environmentally aware perspective gives historical, contemporary, future context decisions. Such approach open up new opportunities with improved have capacity dynamically respond trajectories.

Language: Английский

Citations

10
High-resolution temporal assessment of physicochemical variability and water quality in tropical semi-enclosed bays and coral reefs DOI Creative Commons
Chiara de Jong,

Iris van Os,

Guadalupe Sepúlveda-Rodríguez

et al.

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 968, P. 178810 - 178810

Published: Feb. 18, 2025

Language: Английский

Citations

1
Nutrition-induced changes in the microbiota can cause dysbiosis and disease development DOI Creative Commons
Tim Lachnit, Laura Ulrich,

Fiete M. Willmer

et al.

mBio, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Eukaryotic organisms are associated with complex microbial communities. Changes within these communities have been implicated in disease development. Nonetheless, it remains unclear whether changes a cause or consequence of disease. Here, we report causal link between environment-induced shifts the microbiota and Using model organism Hydra, observed composition when transferring laboratory-grown Hydra to natural lake environments. These were caused not only by new colonizers, through process community coalescence (merging previously separate communities), but also water nutrients. Moreover, selective manipulation nutrient environment induced compound-specific followed Finally, L-arginine supplementation alone transition Pseudomonas from symbiotic pathogenic, leading an upregulation immune response genes, tissue degradation, host death. findings challenge notion that host-associated is exclusively controlled host, highlighting dynamic interplay epithelial environment, colonizer pool, conditions surrounding water. Furthermore, our results show overfeeding allows for uncontrolled growth versatile interactions host. Environmental may thus render symbionts potential hazard their hosts, blurring divide pathogenic non-pathogenic microbes.IMPORTANCEThis study highlights critical need understand environmental factors obtain holistic view on organismal health. Our demonstrate ecosystem-wide trafficking (community coalescence) reshape profound implications By exploring nutrient-driven composition, research finds experimental support "overfeeding hypothesis," which states alters functionality such overabundance nutrients can facilitate development, transforming microbes into pathogens. emphasize role metabolic driving pathogenicity. provides empirical evidence "pathogenic potential" concept, challenging traditional distinctions supporting idea any microbe become under certain conditions.

Language: Английский

Citations

1
Response of coral bacterial composition and function to water quality variations under anthropogenic influence DOI
Wentao Zhu, Xiangbo Liu, Junling Zhang

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 884, P. 163837 - 163837

Published: May 1, 2023

Language: Английский

Citations

19
Coral Lipids DOI Creative Commons
Andrey B. Imbs, Valery M. Dembitsky

Marine Drugs, Journal Year: 2023, Volume and Issue: 21(10), P. 539 - 539

Published: Oct. 15, 2023

Reef-building corals, recognized as cornerstone species in marine ecosystems, captivate with their unique duality both symbiotic partners and autotrophic entities. Beyond ecological prominence, these corals produce a diverse array of secondary metabolites, many which are poised to revolutionize the domains pharmacology medicine. This exhaustive review delves deeply into multifaceted world coral-derived lipids, highlighting ubiquitous rare forms. Within this spectrum, we navigate through myriad fatty acids acyl derivatives, encompassing waxes, sterol esters, triacylglycerols, mono-akyl-diacylglycerols, an polar lipids such betaine glycolipids, sphingolipids, phospholipids, phosphonolipids. We offer comprehensive exploration intricate biochemical variety related acids, prostaglandins, cyclic acyclic oxilipins. Additionally, provides insights chemotaxonomy compounds, illuminating acid synthesis routes inherent corals. Of particular interest is bond coral nurture dinoflagellates from Symbiodinium group; lipid profiles also detailed discourse. accentuates vast potential intricacy underscores profound relevance scientific endeavors.

Language: Английский

Citations

11
Anthropogenic Impacts on Coral-Algal Interactions of the Subtropical Lagoonal Reef, Norfolk Island DOI Creative Commons
MY Ho,

Chris Page,

Bill Leggat

et al.

Integrative Organismal Biology, Journal Year: 2025, Volume and Issue: 7(1)

Published: Jan. 1, 2025

Synopsis Reef building corals are important in subtropical marine ecoregions, shaping ecosystems and providing habitats for fish benthic species. Algal communities contribute substantially to the population structure across coral reefs, however increasing algal cover on reefs is also linked degraded as has been shown tropical systems. As such, dynamics of coral-algal interactions likely be an indicator ecosystem health ecosystems. The lagoonal reef Norfolk Island within Marine Park impacted by a regime disturbance since 2020 including flooding, sedimentation, heat stress events. Assessing type extent with dominant Pocillopora damiconis sites Emily Bay, Slaughter Cemetery Bay potential provide insight into drivers decline reef. Similarly, photochemical efficiency, measured yield (Fv/Fm) using pulse amplitude modulated fluorometry, can used measure during degradation Here we assess colonies P. damicornis prior onset summertime conditions (April 2023) (December 2023). Seasonal site were evident significant bloom red cyanobacteria (P < 0.0001, April Lyngbya {P 0.01 [Slaughter West (SBW)], P East (SBE)], December 2023}. Within reef, variability was most Lyngbya, damincornis found significantly higher at slaughter bay west (SBW 30.2% interactions) east (SBE 24.6% 2023 than neighboring (11.6% (0.6% interactions). Pulse Amplitude Modulated (PAM) fluorometry highlighted influence efficiency damicornis. Benthic structure, interactions, lagoonal, both highlight anthropogenic ecosystem. Further investigation therefore necessary elucidate specific causes consequences algae poor water quality, such interacting corals.

Language: Английский

Citations

0
Variable photosystem II thermal stress responses of reef-building corals Pocillopora indiania and Heliopora coerulea across latitudes from the Mascarene Plateau, Indian Ocean DOI
Vikash Munbodhe,

Ramah Sundy,

Kaullysing Deepeeka

et al.

Deep Sea Research Part II Topical Studies in Oceanography, Journal Year: 2025, Volume and Issue: unknown, P. 105467 - 105467

Published: Feb. 1, 2025

Language: Английский

Citations

0
Seabird-derived nitrogen supply enhances photosynthetic activity in a reef-building coral DOI Creative Commons
Martin Thibault, Anne Lorrain, Nicolas Duprey

et al.

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 209, P. 107147 - 107147

Published: April 11, 2025

Language: Английский

Citations

0
Physiological acclimation of Porites panamensis (Scleractinia: Poritidae) under high-latitude marginal conditions DOI Creative Commons
Alexis E Trejo-Estrada, Clara E. Galindo‐Sánchez, Alma Paola Rodríguez‐Troncoso

et al.

Ciencias Marinas, Journal Year: 2025, Volume and Issue: 50(1B)

Published: April 11, 2025

Hermatypic corals living at high latitudes face suboptimal environmental conditions associated with seasonal changes. In the central Gulf of California, coral Porites panamensis is acclimated to eutrophication, low light availability, and a wide range fluctuations in sea surface temperature (SST). The physiological adjustments its resistance thresholds are phenotypic plasticity. This study evaluated interannual acclimation responses P. warm cold seasons 2022 2023 using markers endosymbiont density, chlorophyll (Chl a) concentration, total lipid content tissue. addition, abiotic variables SST, Chl a, particulate organic carbon (POC), diffuse attenuation coefficient (Kd490) were compared between seasons. results indicated significant difference density (cold season: ~4 × 106 cell·cm–2; ~2 cell·cm–2), an increase concentration during season 2023. We also observed However, changes did not negatively affect content, likely due concentrations POC throughout year (2022: 4.47 ± 1.75 mg·m–3; 2023: 403.3 132.2 mg·m–3), suggesting existence potential year-round food source for panamensis. Our indicate that acclimates turbidity. suggest regulating mixotrophy could be key nutritional strategy withstand fluctuating conditions. ability alternate different pathways according may allow distribute Eastern Tropical Pacific, even inhabiting regions reef development.

Language: Английский

Citations

0