Gene content of seawater microbes is a strong predictor of water chemistry across the Great Barrier Reef

Microbiome, Journal Year: 2025, Volume and Issue: 13(1)

Published: Jan. 16, 2025

Language: Английский

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Seasonal recurrence and modular assembly of an Arctic pelagic marine microbiome

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

Published: Feb. 3, 2025

Abstract Deciphering how microbial communities are shaped by environmental variability is fundamental for understanding the structure and function of ocean ecosystems. While seasonal gradients have been shown to taxonomic dynamics microbiomes over time, little known about their impact on functional coupling between taxonomy function. Here, we demonstrate annually recurrent, structuring in a pelagic Arctic Ocean microbiome combining autonomous samplers situ sensors with long-read metagenomics SSU ribosomal metabarcoding. Specifically, identified five temporal modules whose succession within each annual cycle represents transition across different ecological states. For instance, Cand . Nitrosopumilus, Syndiniales, machinery oxidise ammonia reduce nitrite signatures early polar night, while late summer characterised Amylibacter sulfur compound metabolism. Leveraging metatranscriptomes from Tara Oceans , also consistency wider during similar periods. Furthermore, genetic diversity functions time indicates that selection pressure acts heterogeneously seasons. By integrating taxonomic, information, our study provides insights into structured under pronounced changes understudied, yet rapidly changing marine

Language: Английский

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Navigating the current landscape of ocean observations: an overview from platform infrastructures to networks related to ocean time series

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 11

Published: Jan. 23, 2025

Increasing global temperatures, biodiversity loss, and pollution are among the major transformative changes affecting terrestrial marine ecosystems. The biome can be observed monitored using ocean observations with satellite-based platforms, tagging of animals, autonomous platforms vehicles, ship-based measurements. Sustaining at a given location over time known as series. For example, stationary like moorings record data autonomously one time, while series stations sampled discrete measurements varying sampling frequencies throughout year. Ocean feed into networks that either focus on obtaining data, e.g., similar instruments, or social aims to connect participants, early career science-policy interface. These associated Framework for Observing (FOO) set Essential Variables (EOVs) Best Practices System (OBPS) developed by observing community. range activities around world creates complex landscape, which particularly difficult navigate professionals (ECOPs). ECOPs face higher barriers entering United Nations Decade Science Sustainable Development (“UN Decade”) than others despite actively contributing playing most significant role in success sustainability transformations. review provide an overview organizations observations, motivate get involved ongoing UN (2021-2030), join create new initiatives within existing landscape. harbor extraordinary benefit large diversity end-users far beyond scientific community, there is need engage next generation leaders we transition live manage this blue planet sustainably.

Language: Английский

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Exploring the microorganisms biodiversity associated with sponge species in the red sea through 18S ribosomal RNA gene sequencing

AMB Express, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 2, 2025

Language: Английский

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Diversity and community structure of abundant microbial eukaryotic communities across nutrient regimes in the West Philippine Sea

Regional Studies in Marine Science, Journal Year: 2025, Volume and Issue: unknown, P. 104175 - 104175

Published: April 1, 2025

Language: Английский

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Monthly Variation, Environmental Drivers, and Ecological Functions of Marine Bacterial Community in a Eutrophic Coastal Area of China

Microorganisms, Journal Year: 2025, Volume and Issue: 13(4), P. 837 - 837

Published: April 7, 2025

This study investigated the monthly variations of bacterial communities in surface seawater Wenzhou coastal area and their influencing factors, while exploring ecological functions microbial communities. The results indicated that this region exhibited high diversity, with significantly higher diversity observed winter half-year compared to summer half-year. community structures showed distinct variations, similarity between adjacent months, particularly from June September. dominant taxa primarily included Proteobacteria represented by SAR86 clade, OM43 Rhodobacteraceae; Bacteroidota Flavobacteriaceae; Cyanobacteria mainly composed Cyanobium PCC-6307 Synechococcus CC9902. Temperature nitrate ions were identified as environmental factors most strongly correlated dissolved oxygen, nitrite ions, total organic carbon also significant correlations relative abundances certain taxa. Predictions community’s revealed chemoheterotrophic abundant throughout year, whereas photoautotrophic enriched summer. Denitrification other nitrogen cycling-related displayed obvious variations. Collectively, provides valuable insights into temporal changes interactions different environments.

Language: Английский

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Distinct bacterial and protist plankton diversity dynamics uncovered through DNA-based monitoring in the Baltic Sea area

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

Abstract Planktonic microorganisms in coastal waters form the foundation of food webs and biogeochemical cycles while exposed to pronounced environmental gradients, especially brackish salinities. Yet, commonplace ecological assessment overlooks most their diversity. Here, we analyzed protist bacterial diversity from new publicly available DNA metabarcoding data collected alongside Swedish marine monitoring program. We show that salinity, unlike other factors, had a stronger effect on than community composition. The seasonality but not families showed high geographic variation. Bacterial alpha increased with dissolved inorganic nitrogen, was highest near-marine Microbial composition patterns displayed interannual stability despite technical differences affecting detection rare taxa. Co-occurrence analysis identified clusters potentially interdependent microorganisms. Bayesian modeling same lineages were less likely protists occur both lower (<9 PSU) higher (>15 propose are ecologically sensitive salinity due disconnection basic metabolic processes cell membrane through compartmentalization. Ultimately, incorporating into an program allowed us connect biogeographic understudied taxa biodiversity dynamics.

Language: Английский

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Gene Content of Seawater Microbes is a Strong Predictor of Water Chemistry Across the Great Barrier Reef

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 5, 2024

Background Seawater microbes (bacteria and archaea) play essential roles in coral reefs by facilitating nutrient cycling, energy transfer, overall reef ecosystem functioning. However, environmental disturbances such as degraded water quality marine heatwaves, can impact these vital functions seawater microbial communities experience notable shifts composition function when exposed to stressors. This sensitivity highlights the potential of be used indicators health. Microbial indicator analysis has centred around measuring taxonomic communities, but this obscure heterogeneity gene content between taxonomically similar microbes, thus functional genes have been hypothesised more scope for predictive potential, though empirical validation hypothesis is still pending. Here, we establish a baseline microbiomes across outer Great Barrier Reef (GBR) sites compare diagnostic value information inferring continuous physico-chemical metrics surrounding reef. Results Integrating gene-centric analyses with 17 variables (temperature, salinity, particulate dissolved nutrients) 48 revealed that associations parameters were twice stable compared taxonomy-environment associations. Distinct seasonal variations surface chemistry observed, concentrations up 3-fold higher during austral summer explained enhanced production organic matter (POM) primarily Synechococcus, whereas winter, levels lower POM was also attributed Prochlorococcus. Additionally, heterotrophic (e.g., Rhodospirillaceae, Burkholderiaceae, Flavobacteriaceae, Rhodobacteraceae) enriched elevated carbon (DOC) phytoplankton-derived POM, encoding related membrane transport, sugar utilisation, metabolism. These likely contribute loop capturing recycling nutrients derived from Synechococcus Prochlorococcus, ultimately transferring picocyanobacterial primary producers trophic levels. Conclusion study reveals reef-associated robustly associates than data, highlighting importance incorporating monitoring initiatives. Our integrative approach mine biomarkers expanded include additional health benthic cover corals macroalgae, fish counts/biomass) may applicable other large-scale metagenomics datasets beyond GBR.

Language: Английский

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Advancing phenology in limnology and oceanography

Limnology and Oceanography Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 12, 2024

Language: Английский

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