We examined the patterns of uptake and partitioning of metal(loid)s in Suaeda australis from three highly urbanised estuaries (Sydney Olympic Park, Hunter Wetlands and Lake Macquarie) in NSW, Australia. Of these, Sydney Olympic Park was found to be the most contaminated estuary in terms of combined sediment metal(loid) load, followed by Hunter Wetlands and lowest in Lake Macquarie (via PERMANOVA). Uptake in roots was greater for the essential metals Cu and Zn along with the non-essential metal Cd and the metalloid Se (root BCFs >1) and lower for Pb and As (root BCFs <1). Substantial barriers for translocation from roots to stems were identified for all metal(loid)s (stem TFs; 0.07-0.68). Conversely, unrestricted flow from stems to leaves was observed for all metal(loid)s at unity or higher (leaf TFs ≥ 1). Strong linear relationships between sediment and root for Zn and Pb were observed, indicating roots as a useful bioindicator.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.marpolbul.2021.112475 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Vertical distribution and influencing factors of soil PAHs under different ecosystem habitats in the Liaohe River Estuary Wetlands, Northeastern China.
Mar Pollut Bull
January 2025
Jiangsu Key Laboratory of Ocean-Land Environmental Change and Ecological Construction, School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China. Electronic address:
The vertical distribution, sources and influencing factors of polycyclic aromatic hydrocarbons (PAHs) in soil across ecosystem habitats were investigated around the Liaohe River Estuary (LRE) Wetland. The concentration of ƩPAHs ranged from 41.0 to 435.
View Article and Find Full Text PDFDiversity Patterns and Drivers of Soil Bacterial and Fungal Communities in a Muddy Coastal Wetland of China.
J Fungi (Basel)
November 2024
Co-Innovation Center for Sustainable Forestry in Southern China, Laboratory of Biodiversity and Conservation, College of Ecology and Environment, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China.
Article Synopsis
- Understanding the dynamics of soil microbial diversity in coastal wetlands is crucial for assessing ecological functions and the impact of climate change and management practices.
- The study analyzed soil bacterial and fungal communities in different wetland plots using advanced sequencing techniques, revealing significant variations in microbial diversity based on vegetation type and distance from the coastline.
- Key factors like soil phosphorus content, organic carbon, pH, and salinity were identified as major influences on the structure of microbial communities, with specific indices showing how different wetlands support varying levels of bacterial and fungal diversity.
Spatial distribution of soil organic carbon across diverse vegetation types in a tidal wetland.
Mar Pollut Bull
December 2024
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, China; Yellow River Delta Field Observation and Research Station of Coastal Marsh Ecosystem, Chinese Academy of Sciences, Dongying 257000, Shandong, China. Electronic address:
Article Synopsis
- * The study examined four regions in the intertidal zone, finding that the low-tide saltmarsh Suaeda salsa (LS) had the highest SOC levels, while mid-high-tide Phragmites australis (P) had the lowest.
- * Analysis indicated that soil water content (SWC) affects SOC levels by altering vegetation types, highlighting the importance of vegetation succession in understanding soil carbon pool changes.
Quantitatively unveiling the role of coastal wetlands in regulating eutrophication and enhancing water environmental capacity.
Mar Environ Res
November 2024
Ocean Monitoring and Forecasting Center of Hainan Province, Haikou, 570226, China.
Human activities have intensified the global challenge of coastal eutrophication. Recently, water resource managers have encountered difficulties in formulating precise pollutant reduction strategies to mitigate coastal eutrophication. Despite the recognized importance of coastal wetlands and pollution sources in influencing coastal nutrient levels, accurately quantifying their impact remains difficult.
View Article and Find Full Text PDFEffects of exotic Spartina alterniflora invasion on benthic environments in the Yellow Sea.
Mar Pollut Bull
November 2024
School of Earth and Environmental Sciences, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:
For four decades, cordgrass (Spartina alterniflora) has invaded salt marshes in the Yellow Sea, altering physical, biogeochemical, and biological processes. Here, we investigated the ecological effects of S. alterniflora invasion on benthic environments compared to native halophytes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!