Impact of sediment resuspension on near-bottom mercury dynamics: Insights from a Baltic Sea experiment

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137259 - 137259

Published: Jan. 16, 2025

Language: Английский

---

Total mercury accumulation in Antarctic krill (Euphausia superba) in the northern Antarctic Peninsula during late autumn to early winter

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121651 - 121651

Published: April 1, 2025

Language: Английский

---

Mercury dynamics at the base of the pelagic food web of the Gulf of Gdańsk, southern Baltic Sea

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 202, P. 116363 - 116363

Published: April 14, 2024

Language: Английский

---

Mercury, Methylmercury, and Its Fractions at the Base of the Trophic Pyramid of the Maritime Antarctic Ecosystem of Admiralty Bay

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 492, P. 138268 - 138268

Published: April 12, 2025

Language: Английский

---

The non-selective Antarctic filter feeder Salpa thompsoni as a bioindicator of mercury origin

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Jan. 26, 2024

Hg is considered as the most toxic metal in environment. Sources of environment include burning fossil fuels, waste, and forest fires. The long residence time gaseous form atmosphere allows mercury to be transported over distances. pelagic tunicate Salpa thompsoni an important component Antarctic Over past few decades expansion this species higher latitudes has been noted, mainly due ongoing climate change. study material consisted samples S. individuals, collected waters surrounding Elephant Island (Western Antarctic). Total five its fractions were determined. Whole organisms analyzed well internal organs: stomachs, muscle strips, tunics. Obtained results showed that highest concentrations salps observed stomachs. With fraction results, it can concluded main route exposure presumably absorption from food-filtered organic non-organic particles. Moreover, process transformation simple soluble forms into stomachs intestines distribution other tissues was observed.

Language: Английский

---

Interspecific Variations in the Internal Mercury Isotope Dynamics of Antarctic Penguins: Implications for Biomonitoring

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(14), P. 6349 - 6358

Published: March 26, 2024

Mercury (Hg) biomonitoring requires a precise understanding of the internal processes contributing to disparities between Hg sources in environment and measured biota. In this study, we investigated use stable isotopes trace accumulation Adélie emperor penguin chicks from four breeding colonies Antarctica. Interspecific variation Δ199Hg reflects distinct foraging habitats exposures adults. Chicks at sites where adult penguins predominantly consumed mesopelagic prey showed relatively lower values than that were primarily fed epipelagic krill. Substantial δ202Hg variations chick tissues observed both species (Adélie: −0.11 1.13‰, emperor: −0.27 1.15‰), whereas only exhibited lowest liver highest feathers. Our results indicate tissue-specific their positive correlations with % MeHg resulted demethylation kidneys chicks, different responses depending on exposure dietary MeHg. This study highlights importance considering intra- interspecific ecology when selecting for biomonitoring.

Language: Английский

---

Evaluation of the Adriatic Sea Pollution using Mesozooplankton as an Environmental Indicator

Chemosphere, Journal Year: 2024, Volume and Issue: unknown, P. 143553 - 143553

Published: Oct. 1, 2024

Language: Английский

---