Potential water-quality and hydrology stressors on freshwater mussels with development of environmental DNA assays for selected mussels and macroinvertebrates in Big Darby Creek Basin, Ohio, 2020–22

Scientific investigations report, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Biochemical and Behavioral Responses in the Killer Shrimp Dikerogammarus villosus Following Acute Exposure to Thiacloprid and Calypso®

Archives of Environmental Contamination and Toxicology, Год журнала: 2025, Номер unknown

Опубликована: Май 16, 2025

Язык: Английский

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Inhibition and Restoration of Esterase Activity in Freshwater Snails after Exposure to the Pesticides; Profenofos, Carbofuran, and Thiamethoxam

Journal of Agricultural Chemistry and Environment, Год журнала: 2025, Номер 14(02), С. 243 - 253

Опубликована: Янв. 1, 2025

Язык: Английский

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Impact of Mining Activities: Concentration of Heavy Metals (As, Cd, Cu, Ni) in Three Filter Feeder Species in Southeast Sulawesi, Indonesia

IOP Conference Series Earth and Environmental Science, Год журнала: 2025, Номер 1496(1), С. 012035 - 012035

Опубликована: Май 1, 2025

Abstract Mining activities in Southeast Sulawesi, Indonesia, are increasing daily. This inevitably leads to heavy metal pollution coastal areas. study aimed determine the concentration of metals (As, Cd, Cu, Ni) three filter-feeder species: Dendostrea folium, Gafrarium pectinatum, Isognomon ephipium two stations: Waturrambaha (high nickel mining activity) and Tanjung Tiram (no south-east Indonesia. Sampling was carried out January 2023 concentrations were measured by ICP-OES ICP-MS. The results show that D. folium can strongly accumulate copper cadmium, while G. pectinatum I.ephipium nickel. Sediments from Waturambaha station have higher for all than those station. Whatever species stations, BSAF calculation differential accumulation capacities between considered, most accumulated, arsenic, least with showing intermediate accumulations. do not well but regulate it effectively these very high environmental concentrations. While significant differences highlighted still be used as bioindicators despite their different bioconcentration a certain capacity regulation at

Язык: Английский

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Bioaccumulation of estuarine pollutants in leaf oysters (Isognomon ephippium) on the mid-north coast, New South Wales, Australia

Marine Environmental Research, Год журнала: 2023, Номер 189, С. 106065 - 106065

Опубликована: Июнь 16, 2023

Filter feeding bivalves are useful bioindicators for the detection of biologically available pollutants. We investigated trace metals, metalloids, and pesticides in leaf oyster (Isognomon ephippium) soft tissue shells compared them to sediment five estuaries northern New South Wales, Australia. Concentrations Pb, Cr, Mn, Ni, Fe Al were higher sediments, whereas Zn, Cd, Ag, Hg, Se As bioaccumulated tissue. The amount Cu, Hg Ni from Tweed Richmond River exceeded Australian national quality guideline values. Only one pesticide, atrazine, was detected Combinations six elements best predictors condition index shell size, contaminants showed weak relationships. Overall, bioaccumulation metals metalloids increases with size reduces condition, suggesting these large pollution estuarine environments.

Язык: Английский

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Marine heatwaves have minimal influence on the quality of adult Sydney rock oyster flesh

The Science of The Total Environment, Год журнала: 2021, Номер 795, С. 148846 - 148846

Опубликована: Июль 2, 2021

Язык: Английский

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Immunotoxic effects of exposure to the antifouling copper(I) biocide on target and nontarget bivalve species: a comparative in vitro study between Mytilus galloprovincialis and Ruditapes philippinarum

Frontiers in Physiology, Год журнала: 2023, Номер 14

Опубликована: Авг. 15, 2023

Edible bivalves constitute an important bioresource from economic point of view, and studies on their immune responses to environmental pollutants are crucial for both the preservation biodiversity reasons. The worldwide diffusion copper(I)-based antifouling paints has increased copper leaching into coastal environments its potential impact target nontarget organisms. In this study, immunotoxicity assays were carried out with short-term (60 min) cultures hemocytes Mytilus galloprovincialis-a mussel dominant in macrofouling community-and Ruditapes philippinarum-a clam soft-sediment community-exposed CuCl compare toxic effects responses. LC50 values similar, 40 μM (3.94 mg L-1) 44 (4.33 clam. species, apoptosis occurred after exposure 1 µM (98.9 μg CuCl, concentration able significantly increase intracellular Ca2+ content. Biomarkers cell morphology motility revealed microfilament disruption, a significant decrease yeast phagocytosis lysosome hydrolase (β-glucuronidase) inhibition beginning 0.5 (49.5 same affected biomarkers oxidative stress, as reduced glutathione content cytoplasm mitochondrial cytochrome-c oxidase (COX) detected species. Comparison showed that is more sensitive than regarding alterations lysosomal membrane reactive oxygen species (ROS) production, which supports harmful biocides survival pivotal community.

Язык: Английский

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Pesticide occurrence in a subtropical estuary, Australia: Complementary sampling methods

Environmental Pollution, Год журнала: 2023, Номер 342, С. 123084 - 123084

Опубликована: Дек. 7, 2023

Monitoring pesticide run-off in the aquatic environment is ecologically important. Effective methods are required to detect wide range of possible pesticides that enter estuaries from surrounding catchment. Here, we investigate occurrence Richmond River estuary, Australia, and compare effectiveness using oysters Chemcatcher® passive sampling devices against composite water samples. Samples were collected six sites during two periods: January March 2020 (4 weekly samples oyster collections) February 2021 (8 twice deployment). analysed for up 174 pesticides. A total 21 detected across all methods. The number mixture was higher than In 2021, samplers more Herbicides most common Insecticides fungicides only Chemcatcher®. Overall, use three complementary approaches demonstrated a high level input into highlighting usefulness as biomonitors some

Язык: Английский

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Biofiltering capacity of Chambardia rubens (Bivalvia: Unionidae) may modulate expression of stress and growth genes inhibited by the neonicotinoid insecticide acetamiprid in zebrafish

Environmental Pollution, Год журнала: 2024, Номер 356, С. 124312 - 124312

Опубликована: Июнь 7, 2024

Язык: Английский

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In silico assessment of dehalogenase from Bacillus thuringiensis H2 in relation to its salinity-stability and pollutants degradation

Journal of Biomolecular Structure and Dynamics, Год журнала: 2021, Номер 40(19), С. 9332 - 9346

Опубликована: Май 20, 2021

Increased scientific interest has led to the rise in biotechnological uses of halophilic and halotolerant microbes for hypersaline wastewater bioremediation. Hence, this study performed molecular docking, dynamic (MD) simulations, validation by Molecular Mechanic Poisson-Boltzmann Surface Area (MM-PBSA) calculations on DehH2 from Bacillus thuringiensis H2. We aimed identify interactions with substrates haloacids, haloacetates, chlorpyrifos under extreme salinity (35% NaCl). MD simulations revealed that preferentially degraded haloacids haloacetates (-6.3 -4.7 kcal/mol) forming three or four hydrogen bonds catalytic triad, Asp125, Arg201, Lys202. Conversely, was least preferred substrate both MM-PBSA calculations. simulation results ranked DehH2-L-2CP complex (RMSD □0.125-0.23 nm) as most stable while DehH2-chlorpyrifos 0.32 nm; RMSF 0.0 - 0.29). The order stability follows: > DehH2-MCA DehH2-D-2CP DehH2-3CP DehH2-2,2-DCP DehH2-2,3-DCP DehH2-TCA DehH2-chlorpyrifos. further affirmed complex's highest lowest binding energy -45.14 kcal/mol, followed closely (-41.21 kcal/mol), (-31.59 (-30.75 DehH2-2,2- DCP (-29.72 (-22.20 (-18.46 kcal/mol). positive (+180.57 proved enzyme's non-preference substrate. ultimately illustrated unique specificity degrade above-said pollutants a condition.Communicated Ramaswamy H. Sarma.

Язык: Английский

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