Trace metal accumulation in the commercial mussel M. galloprovincialis under future climate change scenarios

Romero‐Freire, Ana; Lassoued, Jihene; Silva, Elsa; Calvo, Susana; Pérez, Fíz F.; Bejaoui, Nejla; Babarro, José M. F.; Cobelo-Garcı́a, Antonio

doi:10.1016/j.marchem.2020.103840

Cited by 16 publications

(5 citation statements)

References 58 publications

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“…Tissue concentration after 24 h of depuration was lower than tissue concentration at the end of the uptake period for all organ groups except the ROB ( p < 0.05). The ROB included the byssal threads, which are known to accumulate metals in higher concentrations than the soft tissues in marine bivalves. − For example, saltwater Mytilus species from California had 238 U concentrations 10 times higher in their byssus compared to the average soft tissue concentration, and this 238 U was attributed predominately to the aqueous source . It has also been noted that byssus accumulation may potentially serve as a detoxification mechanism.…”

Section: Resultsmentioning

confidence: 99%

Tissue-Specific Toxicokinetics of Aqueous Radium-226 in an Estuarine Mussel, Geukensia demissa

Donaher

Dunn

Gonzales

et al. 2023

Environ. Sci. Technol.

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Radiological contamination of coastal habitats poses potential risk for native fauna, but the bioavailability of aqueous radium (Ra) and other dissolved metals to marine bivalves remains unclear. This study was the first to examine the tissue-specific disposition of aqueous 226 Ra in a coastal mussel, specifically the Atlantic ribbed mussel Geukensia demissa. Most organ groups reached steady-state concentrations within 7 days during experimental exposure, with an average uptake rate constant of 0.0013 mL g −1 d −1 . When moved to Ra-free synthetic seawater, mussels rapidly eliminated aqueous 226 Ra (average elimination rate constant 1.56 d −1 ). The biological half-life for aqueous 226 Ra ranged from 8.9 h for the gills and labial palps to 15.4 h for the muscle. Although previous field studies have demonstrated notable 226 Ra accumulation in the soft tissues of marine mussels and that, for freshwater mussels, tissue-incorporated 226 Ra derives primarily from the aqueous phase, our tissue-specific bioconcentration factors (BCFs) were on the order of (8.3 ± 1.5) × 10 −4 indicating low accumulation potential of aqueous 226 Ra in estuarine mussels. This suggests marine and estuarine mussels obtain 226 Ra from an alternate route, such as particulate-sorbed Ra ingested during filter-feeding or from a contaminated food source.

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Section: Resultsmentioning

confidence: 99%

Tissue-Specific Toxicokinetics of Aqueous Radium-226 in an Estuarine Mussel, Geukensia demissa

Donaher

Dunn

Gonzales

et al. 2023

Environ. Sci. Technol.

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“…The determination of dissolved REEs was attained by the use of a seaFAST (Elemental Scientific) preconcentration module coupled on-line to an ICP-MS (7900, Agilent) (Romero-Freire et al, 2020). In order to produce narrower peaks and lower the analysis time, a 2 cm-long mini-column of 27 mL of volume (Global FIA) was used instead of the original default seaFAST 200 μL column.…”

Section: Analysis Of Dissolved Reesmentioning

confidence: 99%

Rare earth elements distribution in the Gulf of Cádiz (SW Spain): geogenic vs. anthropogenic influence

Cobelo-García,

Bernárdez,

Mendoza-Segura

et al. 2024

Front. Mar. Sci.

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There is a current interest in the study of the geochemical behavior of the rare earth elements (REE) in aquatic systems since their identification as potential microcontaminants in natural waters. In this context, here we report the concentrations and patterns of dissolved REE (dREE) in the waters of the Gulf of Cádiz (GoC) and its major estuaries (Guadiana, Tinto-Odiel and Guadalquivir). Contamination in this area by metals has been extensively reported, linked to acid-mine inputs resulting from the mineralization of the Iberian Pyrite Belt, discharged mainly to the Tinto-Odiel river. However, the impact of these inputs on the concentrations and distribution of the dREE in the coastal waters of the GoC has not been addressed yet. Accordingly, elevated concentrations of dREE were obtained in the Tinto-Odiel estuary compared to the Guadiana and Guadalquivir, reflecting the impact of acid-mine drainage on this system. Only a significant fraction of anthropogenic gadolium (Gd) was observed in the Guadalquivir estuary, as a result of the input from major urban areas, where anthropogenic Gd fractions higher than 70% over the total dissolved pool were obtained for the freshwater end-member. Regarding the surface waters of the GoC, typical NE Atlantic distribution patterns of dREEs were obtained, but modified by two different end-members within this region. Accordingly, and despite the low water discharge of the Tinto-Odiel river, its elevated concentrations lead to an increase in the concentrations of dREEs in the nearshore waters of the GoC and producing a distinctive signature as observed for the MREE anomalies and HREE/LREE ratios. At the easternmost stations, close to the Strait of Gibraltar, these signals are also impacted by the inflow of Mediterranean waters and also by the discharge of the Guadalquivir river.

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“…(Sampaio et al, 2018). However, well-designed studies assessing the combined impacts of a suite of contaminants and multiple CC drivers are rare and the effects of changing pH in the interactions of metals complexed to organic ligands (Avendaño et al, 2016;Zhu et al, 2021) with marine organisms (Leal et al, 2018;Romero-Freire et al, 2020) are still lacking, although extremely important for the ocean productivity.…”

Section: Interactive Effects Of CC Drivers and Contaminantsmentioning

confidence: 99%

Emergent interactive effects of climate change and contaminants in coastal and ocean ecosystems

et al. 2022

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The effects of climate change (CC) on contaminants and their potential consequences to marine ecosystem services and human wellbeing are of paramount importance, as they pose overlapping risks. Here, we discuss how the interaction between CC and contaminants leads to poorly constrained impacts that affects the sensitivity of organisms to contamination leading to impaired ecosystem function, services and risk assessment evaluations. Climate drivers, such as ocean warming, ocean deoxygenation, changes in circulation, ocean acidification, and extreme events interact with trace metals, organic pollutants, excess nutrients, and radionuclides in a complex manner. Overall, the holistic consideration of the pollutants-climate change nexus has significant knowledge gaps, but will be important in understanding the fate, transport, speciation, bioavailability, toxicity, and inventories of contaminants. Greater focus on these uncertainties would facilitate improved predictions of future changes in the global biogeochemical cycling of contaminants and both human health and marine ecosystems.

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Trace metal accumulation in the commercial mussel M. galloprovincialis under future climate change scenarios

Cited by 16 publications

References 58 publications

Tissue-Specific Toxicokinetics of Aqueous Radium-226 in an Estuarine Mussel, Geukensia demissa

Tissue-Specific Toxicokinetics of Aqueous Radium-226 in an Estuarine Mussel, Geukensia demissa

Rare earth elements distribution in the Gulf of Cádiz (SW Spain): geogenic vs. anthropogenic influence

Emergent interactive effects of climate change and contaminants in coastal and ocean ecosystems

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