Impact of beach wrack on microorganisms associated with faecal pollution at the Baltic Sea Sandy beaches

The Science of The Total Environment, Год журнала: 2024, Номер 918, С. 170442 - 170442

Опубликована: Янв. 25, 2024

Язык: Английский

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Diverse sources of fecal contamination in macroalgae wrack-affected environment adjacent to river outflow along the Baltic Sea coast

Environmental Pollution, Год журнала: 2024, Номер 357, С. 124429 - 124429

Опубликована: Июнь 24, 2024

Язык: Английский

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Macroalgae host pathogenic Vibrio spp. in a temperate estuary

Frontiers in Marine Science, Год журнала: 2025, Номер 12

Опубликована: Апрель 2, 2025

Anthropogenic climate change is altering coastal systems globally, affecting macroalgae abundance and composition. These host diverse microbiomes, including pathogenic bacteria. Of particular concern are Vibrio species, such as parahaemolyticus vulnificus , which linked to human disease impact public health, the economy, recreation in areas. This study examined presence of spp. across seven genera a temperate estuary (Narragansett Bay, RI, USA). Using colony-forming unit (CFU) counts multiplex qPCR, we quantified V. assess if varied by genus morphology. We also potential environmental factors influencing prevalence. demonstrate that both were present on all genera, with showing higher average abundance. Environmental like temperature, salinity, nutrient concentrations did not strongly correlate or abundance, suggesting might offer protective microhabitat for these pathogens. Macroalgae opportunistic life strategies had highest highlighting their role reservoirs Future research should explore broader contexts macroalgae– interactions better understand forecast pathogen dynamics.

Язык: Английский

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A suite of ddPCR assays targeting microbial pathogens for improved management of shellfish aquaculture

Applied and Environmental Microbiology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

The shellfish aquaculture industry is one of the fastest-growing sectors global food production, but it currently facing major challenges stemming from microbial pathogens. This study presents an optimized and validated suite droplet digital PCR (ddPCR) assays using water samples proximal to oyster farms in North Carolina quantify pathogens relevant industry. Two molecular enable quantification pathogens, Vibrio parahaemolyticus Perkinsus marinus, that threaten human health performance, respectively. work also introduces two ddPCR simultaneous at least nine ecologically spp. only sets primers probes targeting glycosyl hydrolase family 18 (GH18) domain chiA gene bacteria. entire was applied single assessments 12 sites, revealing heterogeneity pathogen concentrations across coastal landscape variability abundances within individual estuarine river systems. Additionally, a longitudinal conducted demonstration lease elucidated unique temporal trends for all targets. Notably, when quantified reached their maximum, daily probability mortality increased, suggesting role other pertinent progression would otherwise be missed. highlights utility advancement management by offering insights into spaciotemporal dynamics Climate change drastically altering environment changing abundance geographical distribution marine These species put additional pressure on acting as sources disease animals important well humans upon consumption contaminated food. To address growing concerns, high-resolution monitoring can offer effective critical Validated field, presented here improves current methods, enabling several technology makes possible track they move through reveals changes may inform adjustments farming practices aimed mitigating negative outcomes. this approach assay design unveils potential drivers ecological shifts emerging etiologies more efficiently.

Язык: Английский

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Enhanced wound healing and antimicrobial efficacy of PHMB-loaded injectable chitosan/quaternary chitosan/NaHCO3/β-glycerophosphate hydrogels for seawater-infected wounds

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 143418 - 143418

Опубликована: Апрель 1, 2025

Язык: Английский

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Tools to Enumerate and Predict Distribution Patterns of Environmental Vibrio vulnificus and Vibrio parahaemolyticus

Microorganisms, Год журнала: 2023, Номер 11(10), С. 2502 - 2502

Опубликована: Окт. 5, 2023

Vibrio vulnificus (Vv) and parahaemolyticus (Vp) are water- foodborne bacteria that can cause several distinct human diseases, collectively called vibriosis. The success of oyster aquaculture is negatively impacted by high abundances. Myriad environmental factors affect the distribution pathogenic Vibrio, including temperature, salinity, eutrophication, extreme weather events, plankton loads, harmful algal blooms. In this paper, we synthesize current understanding ecological drivers Vv Vp provide a summary various tools used to enumerate in variety environments samples. We also highlight limitations benefits each measurement propose example alternative for more specific enumeration Vp. Improvement molecular methods tighten better predictive models potentially important mitigation controlled such as aquaculture.

Язык: Английский

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U-Net Performance for Beach Wrack Segmentation: Effects of UAV Camera Bands, Height Measurements, and Spectral Indices

Drones, Год журнала: 2023, Номер 7(11), С. 670 - 670

Опубликована: Ноя. 9, 2023

This study delves into the application of U-Net convolutional neural network (CNN) model for beach wrack (BW) segmentation and monitoring in coastal environments using multispectral imagery. Through utilization different input configurations, namely, “RGB”, “RGB height”, “5 bands”, bands “Band ratio indices”, this research provides insights optimal dataset combination model. The results indicate promising performance with “RGB” combination, achieving a moderate Intersection over Union (IoU) 0.42 BW an overall accuracy IoU = 0.59. However, challenges arise potential BW, primarily attributed to dynamics light aquatic environments. Factors such as sun glint, wave patterns, turbidity also influenced accuracy. Contrary hypothesis, integrating all spectral did not enhance model’s efficacy, adding height data acquired from UAVs decreased precision both RGB scenarios. reaffirms CNNs detection, emphasizing suitability suggested method deployment diverse geomorphology, requiring no high-end computing resources, thereby facilitating more accessible applications management.

Язык: Английский

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Beach-cast seagrass wrack: A natural marine resource improving the establishment of dune plant communities under a changing climate

Marine Pollution Bulletin, Год журнала: 2024, Номер 201, С. 116270 - 116270

Опубликована: Март 22, 2024

Язык: Английский

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Potentially Pathogenic Vibrio spp. in Algal Wrack Accumulations on Baltic Sea Sandy Beaches

Microorganisms, Год журнала: 2024, Номер 12(10), С. 2101 - 2101

Опубликована: Окт. 21, 2024

The

Язык: Английский

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Microbiome and Resistome Studies of the Lithuanian Baltic Sea Coast and the Curonian Lagoon Waters and Sediments

Antibiotics, Год журнала: 2024, Номер 13(11), С. 1013 - 1013

Опубликована: Окт. 28, 2024

the widespread use of antibiotics in human and veterinary medicine has contributed to global challenge antimicrobial resistance, posing significant environmental public health risks.

Язык: Английский

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