Variable toxicity of inorganic mercury compounds to Artemia elicited by coexposure with dissolved organic matter DOI Creative Commons
Christoph Gade, Rebecca von Hellfeld, Lenka Mbadugha

et al.

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

Abstract The chemical behavior of mercury (Hg) and its interactions with naturally occurring ligands shape environmental fate impact. neurotoxic properties Hg are widely known studied both in vitro vivo . However, there continues to be limited information on the influence chelation large organic toxicity marine macro-organisms. This work examined effect complexed various types dissolved matter (DOM) mortality hatching success Artemia sp. nauplii under varying media conditions. results confirmed both, an alleviating as well additive, DOM-specific, mortality. DOM coexposure resulted a compound specific decreased or increased comparison single exposure artificial seawater, LC 50 values ranging from 2.11 62.89 µM. Hatching conditions was almost two orders magnitude more sensitive than hatched individuals. Elevated concentrations had no statistically significant impact computed EC 196 324 nM. Graphical abstract

Language: Английский

Toxicity of rare earth elements (REEs) to marine organisms: Using species sensitivity distributions to establish water quality guidelines for protecting marine life DOI
Scott J. Markich,

Jeremy P. Hall,

Jude M. Dorsman

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 261, P. 119708 - 119708

Published: July 30, 2024

Language: Английский

Citations

5
Advancing the understanding of coastal disturbances with a network‐of‐networks approach DOI Creative Commons
Allison Myers‐Pigg, Diana Moanga, Ben Bond‐Lamberty

et al.

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

Published: Jan. 1, 2025

Abstract Coastal ecosystems are at the nexus of many high priority challenges in environmental sciences, including predicting influences compounding disturbances exacerbated by climate change on biogeochemical cycling. While research coastal science is fundamentally transdisciplinary—as drivers and ecological processes often span scientific domains—traditional place–based approaches still employed to understand ecosystems. We argue that a macrosystems perspective, integration across distributed sites, crucial how affect suggest grand challenge questions, such as advancing continental‐scale process understanding extreme events global change, will only be addressed using network‐of‐networks approach. identify specific ways existing efforts can maximize benefit multiple interested parties, where additional infrastructure investments might increase return‐on‐investment along coast, continental United States case study.

Language: Английский

Citations

0
Dissolved Organic Carbon in Coastal Waters: Global Patterns, Stocks and Environmental Physical Controls DOI Creative Commons
Christian Lønborg, Isabel Fuentes‐Santos, Cátia Carreira

et al.

Global Biogeochemical Cycles, Journal Year: 2025, Volume and Issue: 39(5)

Published: May 1, 2025

Abstract Dissolved organic carbon (DOC) in coastal waters is integral to biogeochemical cycling, but global and regional drivers of DOC are still uncertain. In this study we explored spatial temporal differences concentrations stocks across the ocean, how these relate temperature salinity. We estimated a median stock 3.15 Pg C (interquartile range (IQR) = 0.85 C), with being 2.2 times higher than open ocean surface waters. Globally seasonally, salinity was main driver correlated negatively salinity, without clear relationship temperature. varied region season pattern likely driven by riverine inputs nutrients that stimulate phytoplankton production. Temporally, high occurred mainly months freshwater input, some exceptions such as Eastern Boundary Current margins where peaks related primary production stimulated upwelled from adjacent ocean. No trend between apparent, many regions (19 out 25) had aligned seasonal DOC, increased vertical stratification at temperatures. Links highlight potential for anthropogenic impacts alter concentration composition, thereby ecosystem status.

Language: Английский

Citations

0
Dual-Functional Metal Organic Frameworks for Adsorptive Removal and Ultra-Trace Quantitation of 50 Per- and Polyfluoroalkyl Substances in Water DOI Creative Commons
Lisa Hua, Marcello B. Solomon,

M. D'Alessandro Deanna

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 138679 - 138679

Published: May 1, 2025

Language: Английский

Citations

0
Changes in DIC/TA ratio by tidal asymmetry control <i>p</i>CO<sub>2</sub> over a spring-neap tidal cycle in a subtropical mangrove forest in Japan DOI Open Access
Wataru Nakamura,

Phyo Thet Naing,

Kenta Watanabe

et al.

GEOCHEMICAL JOURNAL, Journal Year: 2024, Volume and Issue: 58(1), P. 28 - 45

Published: Jan. 1, 2024

Mangrove creeks have extremely large carbonate chemistry parameters (partial pressure of carbon dioxide (pCO2), dissolved inorganic (DIC), and total alkalinity (TA)) owing to the porewater export by tidal pumping. In this study, relationship between oscillations was clarified, CO2 emissions from mangrove swamps were evaluated in a forest Japan, where duration swamp inundation longer during neap tides asymmetry. The pCO2 values creek ranged 307 6036 µatm, with maximum recorded at 4583 µatm spring tide (symmetric tide) (asymmetric tide). Spatiotemporal water sampling over spring-neap cycle revealed that increase mangrove-derived DIC TA varied inundated exposed periods swamps, being produced more than period. This suggests DIC/TA ratio as increases controls variations region. Although high creeks, water-air (integrating flux area) limited approximately 3.3% fate sequestered carbon, suggesting 94.6% outwelled ocean stored therein.

Language: Английский

Citations

2
Deciphering the composition and degradation of dissolved organic matter in a large subtropical river using optical indices and high-resolution FT-ICR-MS DOI
Yufan Wang,

Wenyi Zhang,

Fu-Tao Fang

et al.

Journal of Environmental Sciences, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

Citations

1
Surface Plasmon Resonance based PCF sensor for DOM Detection DOI

M. F. Mohd Fadhir,

Marinah Othman,

M. Nashahar

et al.

Published: July 27, 2024

Language: Английский

Citations

0
Variable toxicity of inorganic mercury compounds to Artemia elicited by coexposure with dissolved organic matter DOI Creative Commons
Christoph Gade, Rebecca von Hellfeld, Lenka Mbadugha

et al.

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

Abstract The chemical behavior of mercury (Hg) and its interactions with naturally occurring ligands shape environmental fate impact. neurotoxic properties Hg are widely known studied both in vitro vivo . However, there continues to be limited information on the influence chelation large organic toxicity marine macro-organisms. This work examined effect complexed various types dissolved matter (DOM) mortality hatching success Artemia sp. nauplii under varying media conditions. results confirmed both, an alleviating as well additive, DOM-specific, mortality. DOM coexposure resulted a compound specific decreased or increased comparison single exposure artificial seawater, LC 50 values ranging from 2.11 62.89 µM. Hatching conditions was almost two orders magnitude more sensitive than hatched individuals. Elevated concentrations had no statistically significant impact computed EC 196 324 nM. Graphical abstract

Language: Английский

Citations

0