Reply on RC3 DOI Creative Commons
Jiaying Guo

Published: Dec. 11, 2023

Abstract. Ocean alkalinity enhancement (OAE) aims to increase atmospheric CO2 sequestration in the oceans through acceleration of chemical rock weathering. This could be achieved by grinding rocks containing alkaline minerals and adding powder surface ocean where it dissolves chemically locks seawater as bicarbonate. However, during dissolution coincides with release potentially bio-active chemicals may induce side effects. Here, we used 53 L microcosms test how coastal plankton communities from Tasmania respond OAE olivine (mainly Mg2SiO4) or steel slag CaO Ca(OH)2) sources. Three were left unperturbed served a control, three enriched (1.9 g L−1), (0.038 L−1). Phytoplankton zooplankton community responses well some biogeochemical parameters monitored for 21 days. Olivine additions increased total 29 µmol kg−1 361 respectively, which corresponds theoretical 0.9 % 14.8 storage capacity CO2. released silicate nutrients into water column, but considerably more also significant amounts phosphate. Both dissolved aluminium (> 400 nmol The addition manganese concentrations (784 while nickel (38 treatment particulate (22 (5 was consistent these trace metals seawater. There no difference chlorophyll between treatments likely due nitrogen limitation phytoplankton community. flow cytometry results indicated an cellular abundance several smaller (~<20 µm) groups compared control. larger (~>20 decreased much control than mineral after day 10. Furthermore, maximum quantum yields photosystem II (Fv/Fm) higher treatments, suggesting that photosynthetic performance. composition affected most notable changes being observed dinoflagellate Noctiluca scintillans appendicularian Oikopleura sp. Overall, is efficient removal appears less when relating potential level environmental impact here.

Language: Английский

Explainable machine learning for predicting the geographical origin of Chinese Oysters via mineral elements analysis DOI Creative Commons
Xuming Kang, Yanfang Zhao,

Lin Yao

et al.

Current Research in Food Science, Journal Year: 2024, Volume and Issue: 8, P. 100738 - 100738

Published: Jan. 1, 2024

The traceability of geographic origin is essential for guaranteeing the quality, safety, and protection oyster brands. However, current outcomes lack credibility as they do not adequately explain model's predictions. Consequently, we conducted a study to evaluate efficacy utilizing explainable machine learning combined with mineral elements analysis. findings revealed that 18 have ability determine regional orientation. Simultaneously, individuals should pay closer attention potential risks associated consumption due differences in toxic contain. Light gradient boosting (LightGBM) model exhibited indistinguishable performance, achieving flawless accuracy, precision, recall, F1 score AUC, values 96.77%, 96.43%, 98.53%, 97.32% 0.998, respectively. SHapley Additive exPlanations (SHAP) method was used output LightGBM model, revealing feature interactions among oysters from different provinces. Specifically, features Na, Zn, V, Mg, K were found significant impact on predictive process model. Consistent existing research, use techniques can provide insights into complex connections between important product attributes relevant geographical information.

Language: Английский

Citations

6
Bivalves as a Mercury Bioindicator: A National Isotopic Survey along the Coast of South Korea DOI
Lucien Besnard, Kongtae Ra,

Young Gwang Kim

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Mercury (Hg) is a contaminant that poses health risks for human populations relying on seafood consumption. To mitigate its impact, identifying and monitoring Hg sources have become priorities, notably under the Minamata Convention. Bivalves are commonly used as sentinels in biomonitoring but can accumulate from diverse environmental media. investigate their sources, bivalves (blue mussel, Mytilus edulis, Pacific oyster, Crassostrea gigas) associated sediment were sampled along coast of South Korea analyzed concentration isotopic values. Oysters displayed low Δ199Hg (0.19 ± 0.19‰) δ202Hg (−0.35 0.55‰), highlighting sedimentary source, whereas mussels exhibited higher values (0.72 0.87 0.09 0.72‰, respectively) indicating bioaccumulation water column. Sulfur, carbon, nitrogen stable isotopes suggested such difference was not due to feeding niches. However, trajectory analysis showed conditions controlling desorption remobilization Hg, via tidal flows, likely drive observed source(s). While systematically reflected biota, bivalves, which typically display pools accumulated by benthic or pelagic food webs, appear valuable Convention biomonitoring, though fluctuating require careful interpretation.

Language: Английский

Citations

0
Biochemical responses in Pacific oysters Magallana gigas (Thunberg, 1793): Tools to evaluate the environmental quality of aquaculture areas DOI
Miguel Saldaña‐Serrano, Camila Lisarb Velasquez Bastolla, Jacó Joaquim Mattos

et al.

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 201, P. 116244 - 116244

Published: March 14, 2024

Language: Английский

Citations

3
Effects of cadmium and zinc on gene expression of novel molecular biomarkers in the mangrove oyster Crassostrea gasar DOI
Clarissa P. Ferreira, Camila Lisarb Velasquez Bastolla, Miguel Saldaña‐Serrano

et al.

Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology, Journal Year: 2023, Volume and Issue: 270, P. 109641 - 109641

Published: May 1, 2023

Language: Английский

Citations

3
Influence of Ocean Alkalinity Enhancement with Olivine or Steel Slag on a Coastal Plankton Community in Tasmania DOI Creative Commons
Jiaying Guo, Robert F. Strzepek, Kerrie M. Swadling

et al.

Published: Sept. 18, 2023

Abstract. Ocean alkalinity enhancement (OAE) aims to increase atmospheric CO2 sequestration in the oceans through acceleration of chemical rock weathering. This could be achieved by grinding rocks containing alkaline minerals and adding powder surface ocean where it dissolves chemically locks seawater as bicarbonate. However, during dissolution coincides with release potentially bio-active chemicals may induce side effects. Here, we used 53 L microcosms test how coastal plankton communities from Tasmania respond OAE olivine (mainly Mg2SiO4) or steel slag CaO Ca(OH)2) sources. Three were left unperturbed served a control, three enriched (1.9 g L−1), (0.038 L−1). Phytoplankton zooplankton community responses well some biogeochemical parameters monitored for 21 days. Olivine additions increased total 29 µmol kg−1 361 respectively, which corresponds theoretical 0.9 % 14.8 storage capacity CO2. released silicate nutrients into water column, but considerably more also significant amounts phosphate. Both dissolved aluminium (> 400 nmol The addition manganese concentrations (784 while nickel (38 treatment particulate (22 (5 was consistent these trace metals seawater. There no difference chlorophyll between treatments likely due nitrogen limitation phytoplankton community. flow cytometry results indicated an cellular abundance several smaller (~<20 µm) groups compared control. larger (~>20 decreased much control than mineral after day 10. Furthermore, maximum quantum yields photosystem II (Fv/Fm) higher treatments, suggesting that photosynthetic performance. composition affected most notable changes being observed dinoflagellate Noctiluca scintillans appendicularian Oikopleura sp. Overall, is efficient removal appears less when relating potential level environmental impact here.

Language: Английский

Citations

2
Essential, trace and toxic elements content, their distribution and risk assessment in Karaagach river, Bulgarian Black Sea region DOI Creative Commons
Velyana Georgieva, Svetlana Genieva

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: March 18, 2024

Abstract In the southeastern part of Bulgarian Black Sea coast, Veleka River and Burgas Lake Vaya have been studied, but there is still no comprehensive study Karagach River. order to monitor changes in concentrations essential, trace toxic elements their distribution surface waters region, sampling points along Karaagach river length were selected. Monthly water was conducted from June 2021 2022 at selected analyzed for 22 (Al, As, Cu, Cr, Mn, Zn, Ni, Cd, Pb, B, Ba, Co, Na, Se, Ag, Be, Mg, K, Bi, Li, Sr, V). The annual average Al Mn where found five monitoring 27.5 ± 8.0 µg L –1 89.7 40.1 , respectively, categorize these metals as major pollutants. Exceedances above permissible Ni (5.2 1.3 ), Cd (0.30 0.08 ) Pb (3.0 0.5 only recorded urbanized sites, therefore they are classified point contaminants. Based on Pearson's correlation statistical analysis non-identical origin pollutants a presumed anthropogenic source contaminants identified. Heavy contamination with autumn three monitored assessed by calculating different indexes.

Language: Английский

Citations

0
How sustainable are daily medicine consumption practices? The case of a fragile coastal area, Arcachon Bay (SW, France) DOI Creative Commons
Clarisse Cazals, Sandrine Lyser, Vanessa Kuentz-Simonet

et al.

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 416, P. 137866 - 137866

Published: June 24, 2023

The potentially negative environmental effects of pesticides and antibiotics are a source concern for public health. Many studies in recent years have focused on so-called "emerging micropollutants" emanating from domestic activity found primarily cleaning products, cosmetics, medicines. This awareness potential risks to the natural environment has evolved considerably since 1970s. Sustained population growth urban areas forced policy makers pay more attention links between health environment, specifically complexity medicine consumption. Using practice theory approach, this article aims identify how sustainable daily consumption practices are. Our research is based analysis relation four interdependent elements: prescription, treatment, unused medication, representations issues. First, background discussed. approach then applied quantitative data questionnaire survey consumers that we conducted French coastal area subject specific demographic pressure micropollution water. A multivariate statistical exploratory set highlights structure concerned, extent which issues considered when medication disposed of. We conclude by highlighting relevance our understanding complex nature consumption, involves diverse communities practice. also underline need target all stakeholders process, medical professionals end users.

Language: Английский

Citations

0
Comment on egusphere-2023-2120 DOI Creative Commons
D.A. Hutchins

Published: Oct. 20, 2023

Abstract. Ocean alkalinity enhancement (OAE) aims to increase atmospheric CO2 sequestration in the oceans through acceleration of chemical rock weathering. This could be achieved by grinding rocks containing alkaline minerals and adding powder surface ocean where it dissolves chemically locks seawater as bicarbonate. However, during dissolution coincides with release potentially bio-active chemicals may induce side effects. Here, we used 53 L microcosms test how coastal plankton communities from Tasmania respond OAE olivine (mainly Mg2SiO4) or steel slag CaO Ca(OH)2) sources. Three were left unperturbed served a control, three enriched (1.9 g L−1), (0.038 L−1). Phytoplankton zooplankton community responses well some biogeochemical parameters monitored for 21 days. Olivine additions increased total 29 µmol kg−1 361 respectively, which corresponds theoretical 0.9 % 14.8 storage capacity CO2. released silicate nutrients into water column, but considerably more also significant amounts phosphate. Both dissolved aluminium (> 400 nmol The addition manganese concentrations (784 while nickel (38 treatment particulate (22 (5 was consistent these trace metals seawater. There no difference chlorophyll between treatments likely due nitrogen limitation phytoplankton community. flow cytometry results indicated an cellular abundance several smaller (~<20 µm) groups compared control. larger (~>20 decreased much control than mineral after day 10. Furthermore, maximum quantum yields photosystem II (Fv/Fm) higher treatments, suggesting that photosynthetic performance. composition affected most notable changes being observed dinoflagellate Noctiluca scintillans appendicularian Oikopleura sp. Overall, is efficient removal appears less when relating potential level environmental impact here.

Language: Английский

Citations

0
Reply on RC1 DOI Creative Commons
Jiaying Guo

Published: Oct. 24, 2023

Abstract. Ocean alkalinity enhancement (OAE) aims to increase atmospheric CO2 sequestration in the oceans through acceleration of chemical rock weathering. This could be achieved by grinding rocks containing alkaline minerals and adding powder surface ocean where it dissolves chemically locks seawater as bicarbonate. However, during dissolution coincides with release potentially bio-active chemicals may induce side effects. Here, we used 53 L microcosms test how coastal plankton communities from Tasmania respond OAE olivine (mainly Mg2SiO4) or steel slag CaO Ca(OH)2) sources. Three were left unperturbed served a control, three enriched (1.9 g L−1), (0.038 L−1). Phytoplankton zooplankton community responses well some biogeochemical parameters monitored for 21 days. Olivine additions increased total 29 µmol kg−1 361 respectively, which corresponds theoretical 0.9 % 14.8 storage capacity CO2. released silicate nutrients into water column, but considerably more also significant amounts phosphate. Both dissolved aluminium (> 400 nmol The addition manganese concentrations (784 while nickel (38 treatment particulate (22 (5 was consistent these trace metals seawater. There no difference chlorophyll between treatments likely due nitrogen limitation phytoplankton community. flow cytometry results indicated an cellular abundance several smaller (~<20 µm) groups compared control. larger (~>20 decreased much control than mineral after day 10. Furthermore, maximum quantum yields photosystem II (Fv/Fm) higher treatments, suggesting that photosynthetic performance. composition affected most notable changes being observed dinoflagellate Noctiluca scintillans appendicularian Oikopleura sp. Overall, is efficient removal appears less when relating potential level environmental impact here.

Language: Английский

Citations

0
Comment on egusphere-2023-2120 DOI Creative Commons
Jiaying Guo, Robert F. Strzepek, Kerrie M. Swadling

et al.

Published: Oct. 26, 2023

Abstract. Ocean alkalinity enhancement (OAE) aims to increase atmospheric CO2 sequestration in the oceans through acceleration of chemical rock weathering. This could be achieved by grinding rocks containing alkaline minerals and adding powder surface ocean where it dissolves chemically locks seawater as bicarbonate. However, during dissolution coincides with release potentially bio-active chemicals may induce side effects. Here, we used 53 L microcosms test how coastal plankton communities from Tasmania respond OAE olivine (mainly Mg2SiO4) or steel slag CaO Ca(OH)2) sources. Three were left unperturbed served a control, three enriched (1.9 g L−1), (0.038 L−1). Phytoplankton zooplankton community responses well some biogeochemical parameters monitored for 21 days. Olivine additions increased total 29 µmol kg−1 361 respectively, which corresponds theoretical 0.9 % 14.8 storage capacity CO2. released silicate nutrients into water column, but considerably more also significant amounts phosphate. Both dissolved aluminium (> 400 nmol The addition manganese concentrations (784 while nickel (38 treatment particulate (22 (5 was consistent these trace metals seawater. There no difference chlorophyll between treatments likely due nitrogen limitation phytoplankton community. flow cytometry results indicated an cellular abundance several smaller (~<20 µm) groups compared control. larger (~>20 decreased much control than mineral after day 10. Furthermore, maximum quantum yields photosystem II (Fv/Fm) higher treatments, suggesting that photosynthetic performance. composition affected most notable changes being observed dinoflagellate Noctiluca scintillans appendicularian Oikopleura sp. Overall, is efficient removal appears less when relating potential level environmental impact here.

Language: Английский

Citations

0