Impact of Microplastic Exposure on Sand Crab Scopimera globosa Behavior: Implications for Microplastic Transport and Sulfur Cycling through Bioturbation DOI

Chaofan Sun,

Hui Liu,

Jia Teng

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

The accumulation of microplastics (MPs) in estuarine regions and their ecological consequences have become global environmental concerns. Estuarine sediments function as major sinks for MPs hotspots critical biogeochemical processes, which are significantly influenced by benthic bioturbation. However, the impacts on behavior highly mobile organisms effects bioturbation activities remain poorly understood. This study utilized laboratory simulation experiments, AI-based behavioral tracking, metagenomic sequencing to systematically examine sand crab migration, sediment physicochemical properties sulfur cycling processes. Results demonstrated that substantially enhanced vertical migration MPs, with fluxes surface layers overlying water increasing 27-fold compared undisturbed conditions. Exposure PE-MPs reduced crabs' foraging intensity induced abnormalities. crabs actively avoided exhibiting a preference burrowing residing deeper layers. shift altered microbial community distributions, an increase Pseudomonadota abundance decline sulfate-reducing bacteria Thermodesulfobacteriota abundance. Furthermore, accelerated sulfate oxidation while inhibited dissimilatory reduction. is first identify role promoting upward sediments. Altered will impact biogeochemistry, function, coastal resilience.

Language: Английский

Microplastics and benthic animals reshape the geochemical characteristics of dissolved organic matter by inducing changes in keystone microbes in riparian sediments DOI

Yuanyuan Feng,

Jinjiang Duan,

Cheng Yang

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 262, P. 119806 - 119806

Published: Aug. 14, 2024

Language: Английский

Citations

4
Impact of Microplastic Exposure on Sand Crab Scopimera globosa Behavior: Implications for Microplastic Transport and Sulfur Cycling through Bioturbation DOI

Chaofan Sun,

Hui Liu,

Jia Teng

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

The accumulation of microplastics (MPs) in estuarine regions and their ecological consequences have become global environmental concerns. Estuarine sediments function as major sinks for MPs hotspots critical biogeochemical processes, which are significantly influenced by benthic bioturbation. However, the impacts on behavior highly mobile organisms effects bioturbation activities remain poorly understood. This study utilized laboratory simulation experiments, AI-based behavioral tracking, metagenomic sequencing to systematically examine sand crab migration, sediment physicochemical properties sulfur cycling processes. Results demonstrated that substantially enhanced vertical migration MPs, with fluxes surface layers overlying water increasing 27-fold compared undisturbed conditions. Exposure PE-MPs reduced crabs' foraging intensity induced abnormalities. crabs actively avoided exhibiting a preference burrowing residing deeper layers. shift altered microbial community distributions, an increase Pseudomonadota abundance decline sulfate-reducing bacteria Thermodesulfobacteriota abundance. Furthermore, accelerated sulfate oxidation while inhibited dissimilatory reduction. is first identify role promoting upward sediments. Altered will impact biogeochemistry, function, coastal resilience.

Language: Английский

Citations

0