Understanding among-lake variability of mercury concentrations in Northern Pike (Esox lucius): A whole-ecosystem study in subarctic lakes

Moslemi-Aqdam, Mehdi; Baker, Leanne F.; Baltzer, Jennifer L.; Branfireun, Brian A.; Evans, Marlene S.; Laird, Brian; Low, George C.; Low, Mike; Swanson, Heidi K.

doi:10.1016/j.scitotenv.2022.153430

Cited by 13 publications

(10 citation statements)

References 70 publications

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“…HM levels can vary signi cantly in different organs or tissues of sh [5]. Differences in HM concentrations among sh tissues are in uenced by various factors, such as the levels of HMs in water and food, water chemistry, and the species, size, age, gender, feeding habits, habitat, and physiological status of sh [1,29,[31][32][33][34]. Relationships may exist between these factors.…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Heavy metal concentrations in various tissues of two fish species from Damsa Dam Lake (Turkey) and associated health risk assessment

Kaçar

2023

Preprint

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In current study, the distribution of 10 heavy metals in muscle, gills and liver of two fish species (Squalius pursakensis and Cyprinus carpio) living in the Damsa Dam Lake (Turkey) was examined in relation to fish gender and size. The highest quantities of all heavy metals were determined in the gills and liver of the fish species. The levels of most heavy metals in tissues did not differ significantly between both fish species. Only a few heavy metals in the tissues of both fish species demonstrated significant associations with fish length or weight. In terms of the levels of most of the heavy metals in the tissues, there weren’t any significant differences between the male and the female fish. The estimated daily intakes of all of the heavy metals were lower than the reference doses. The values of the target hazard quotient and the hazard index were found to be below 1 and the values regarding carcinogenic risk were assessed to be within or lower than the permissible levels. These results proved that the examined fish species can be consumed safely.

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Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Heavy metal concentrations in various tissues of two fish species from Damsa Dam Lake (Turkey) and associated health risk assessment

Kaçar

2023

Preprint

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“…Trudel and Rasmussen (2006) showed that Hg concentration may be either positively or negatively correlated to changes in growth and growth efficiency, depending on how fish allocate energy between activity costs and growth rates. Mercury concentrations of northern pike were negatively correlated with growth rate though also influenced by water chemistry and characteristics of the subarctic catchments (Moslemi-Aqdam et al, 2022). Tissue Hg concentrations were negatively correlated with body condition in sea-run char (Evans et al, 2015), caribou (Rangifer tarandus groenlandicus; Gamberg et al, 2016) and little auks (Amélineau et al, 2019), while positive correlations were observed for eider (Provencher et al, 2016).…”

Section: Processes Affecting Mercury Bioaccumulation At Higher Trophi...mentioning

confidence: 96%

Arctic methylmercury cycling

Jonsson

Mastromonaco

Wang

et al. 2022

Science of The Total Environment

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“…Northern Pike (Esox Lucius) is one of the most important socio-economic freshwater fish species, providing various nutrients that are essential for human health. Meanwhile, due to its low-fat characteristics, Esox Lucius is highly attractive to consumers [2,3]. The fatty acids in the raw fish fillets are mainly palmitic acid (42.6%), oleic acid (12.1%) and stearic acid (11.1%) [4].…”

Section: Introductionmentioning

confidence: 99%

Oxidative Stress Contributes to Cytoskeletal Protein Degradation of Esox lucius through Activation of Mitochondrial Apoptosis during Postmortem Storage

Zhao

et al. 2022

Foods

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This study investigated the role of oxidative stress in the mitochondrial apoptotic pathways and structural protein degradation of fish during postmortem storage by measuring oxidative stress levels, mitochondrial antioxidant enzyme activity, mitochondrial dysfunction, apoptotic factors, and structural protein degradation (n = 3). The results revealed that reactive oxygen species (ROS) increased gradually within the first 12 h and then decreased (p < 0.05) in mitochondria. Lipid peroxidation was increased, and superoxide dismutase, catalase, and glutathione peroxidase activities were decreased in mitochondria (p < 0.05). Furthermore, oxidative stress induced mitochondrial membrane opening, mitochondrial swelling, as well as the depolarization of mitochondrial potential. This led to an increase in the release of cytochrome c from mitochondria and caspase-3 activation. Ultimately, oxidative stress promoted small protein degradation (troponin-T and desmin) and induced myofibril susceptibility to proteolysis. These observations confirmed that oxidative stress mediated the activation of mitochondrial apoptotic factors-promoted protein degradation, initiating the deterioration of fish muscle through the mitochondrial apoptotic pathway.

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Understanding among-lake variability of mercury concentrations in Northern Pike (Esox lucius): A whole-ecosystem study in subarctic lakes

Cited by 13 publications

References 70 publications

WITHDRAWN: Heavy metal concentrations in various tissues of two fish species from Damsa Dam Lake (Turkey) and associated health risk assessment

WITHDRAWN: Heavy metal concentrations in various tissues of two fish species from Damsa Dam Lake (Turkey) and associated health risk assessment

Arctic methylmercury cycling

Oxidative Stress Contributes to Cytoskeletal Protein Degradation of Esox lucius through Activation of Mitochondrial Apoptosis during Postmortem Storage

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