Oil-mediated oxidative-stress responses in a keystone zooplanktonic species, Calanus finmarchicus

Soloperto, Sofia; Altin, Dag; Hallmann, Anna; Skottene, Elise; Hansen, Bjørn Henrik; Jenssen, Bjørn Munro; Ciesielski, Tomasz Maciej

doi:10.1016/j.scitotenv.2021.151365

Cited by 9 publications

(3 citation statements)

References 51 publications

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“…As an example, in Tigriopus japonicus , exposure to metals such as Cu, Cd, As and Mn upregulated the expression of GST genes coding for the endogenous glutathione-S-transferase (GST) isozymes, which play a key role in the antioxidant defence and in the phase II detoxification of organic pollutants ( Lee et al, 2007 , Lee et al, 2008 ). Similarly, the exposure of copepods to crude oil water accommodated fraction (WAF) induced the activity of the antioxidant enzymes (GST, glutathione reductase and catalase) and the expression of different genes coding for cytochrome P450 (CYP450) superfamily ( Han et al, 2014 ; Hansen et al, 2009 ; Soloperto et al, 2022 ), resulting in dysfunctional development and reproduction ( Han et al, 2014 ). These data suggest that the increased costs for somatic maintenance (i.e., antioxidant defence) and detoxification (i.e., induction of GST and CYP450), needed to maintain homeostasis, may limit the energy budget available for growth ( Kooijman, 2010 ).…”

Section: Discussionmentioning

confidence: 99%

Impacts of exhaust gas cleaning systems (EGCS) discharge waters on planktonic biological indicators

Picone

Russo

Distefano

et al. 2023

Marine Pollution Bulletin

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Section: Discussionmentioning

confidence: 99%

Impacts of exhaust gas cleaning systems (EGCS) discharge waters on planktonic biological indicators

Picone

Russo

Distefano

et al. 2023

Marine Pollution Bulletin

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“…Lipids degradation by oxidative stress can also be caused by human industrial pollution and the amount of oxidant pollutants, including metallic ions, released by anthropic activities is astonishing (Amoatey & Baawain, 2019). As a first example, oil pollution induces lipid peroxidation in Calanus finmarchicus and a higher activity of their antioxidant enzymes is needed to compensate for such oxidative stress (Soloperto et al, 2022). Astaxanthin accumulation (known to occur in this species) would be a useful additional help against such human pollutants.…”

Section: Perspectives and Implications To Monitor Aquatic Ecosystems ...mentioning

confidence: 99%

Copepods' true colors: astaxanthin pigmentation as an indicator of fitness

et al. 2023

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Pigmentation is often overlooked in zooplankton, since these organisms are mostly colorless to fit the translucid water medium. However, one of the dominant zooplankton taxa in aquatic ecosystems—copepods—often show a bright red‐orange or blue coloration owing to the accumulation of carotenoid pigments in some parts of their bodies. Even though there are many functional traits describing copepod's performance (e.g., size, feeding, and reproductive modes), it is surprising that the role of such a simple and visible trait as coloration has not been studied in a coherent manner yet. Here, by reviewing 95 studies, we demonstrate that carotenoid‐based pigmentation (mainly caused by astaxanthin molecules) is a widespread functional trait in freshwater and marine copepods. We propose a way to disentangle the complex and thus intriguing patterns of pigment expression along latitudinal and altitudinal gradients, addressing its relationship to diet quality and quantity, temperature, ultraviolet radiation stress, predation pressure, lipid metabolism, and reproduction. We show that large‐scale variations in pigmentation are difficult to tackle because of the fundamental plasticity of this trait at short time scales (i.e., hours, days), and the most recent information about carotenoid bioconversion are addressed (genes and enzyme identification, and influence of microbiota). From this literature review, we hypothesize that pigments play a “Swiss‐army knife” role for copepod's fitness, useful in various ecosystem conditions owing to the strong antioxidant power and the finely‐tuned metabolism of astaxanthin. With larger antioxidant capacities (survival), higher metabolisms (growth), and more offspring in better condition (reproduction), red morphs appear more successful than their uncolored siblings. Also, the potential camouflage strategies allowed by red and blue pigmentation are discussed. We finally formulate new directions and future research fields from molecular to ecosystem scales. Routine quantifications of copepod's pigmentation through trait‐based approaches could be useful (1) to obtain an accurate copepod fitness indicator and (2) to better estimate the transfer of antioxidant to higher trophic levels in ecosystems, including humans.

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“…Previous work has demonstrated the diverse effects of oil and oil-associated compounds on copepods of the genus Calanus . On a cellular level, an increase in oxidative stress, as indicated by the increased activity of detoxifying enzymes, has been reported. − Several studies found a reduction in feeding activity, which may be caused by oil-induced narcosis. − At high concentrations, narcosis can also strongly hamper swimming of copepods . Miljeteig et al observed increasing positive phototaxis under oil exposure.…”

Section: Introductionmentioning

confidence: 99%

Cumulative Impacts of Oil Pollution, Ocean Warming, and Coastal Freshening on the Feeding of Arctic Copepods

Rist,

Rask,

Ntinou

et al. 2024

Environ. Sci. Technol.

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The Arctic is undergoing rapid changes, and biota are exposed to multiple stressors, including pollution and climate change. Still, little is known about their joint impact. Here, we investigated the cumulative impact of crude oil, warming, and freshening on the copepod species Calanus glacialis and Calanus finmarchicus. Adult females were exposed to ambient conditions (control; 0 °C + 33 psu) and combined warming and freshening: 5 °C + 27 psu (Scenario 1), 5 °C + 20 psu (Scenario 2) for 6 days. All three conditions were tested with and without dispersed crude oil. In Scenario 1, fecal pellet production (FPP) significantly increased by 40–78% and 42–122% for C. glacialis and C. finmarchicus, respectively. In Scenario 2, FPP decreased by 6–57% for C. glacialis, while it fluctuated for C. finmarchicus. For both species, oil had the strongest effect on FPP, leading to a 68–83% reduction. This overshadowed the differences between climatic scenarios. All variables (temperature, salinity, and oil) had significant single effects and several joint effects on FPP. Our results demonstrate that Arctic copepods are sensitive to environmentally realistic concentrations of crude oil and climate change. Strong reductions in feeding can reduce the copepods’ energy content with potential large-scale impacts on the Arctic marine food web.

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Oil-mediated oxidative-stress responses in a keystone zooplanktonic species, Calanus finmarchicus

Cited by 9 publications

References 51 publications

Impacts of exhaust gas cleaning systems (EGCS) discharge waters on planktonic biological indicators

Impacts of exhaust gas cleaning systems (EGCS) discharge waters on planktonic biological indicators

Copepods' true colors: astaxanthin pigmentation as an indicator of fitness

Cumulative Impacts of Oil Pollution, Ocean Warming, and Coastal Freshening on the Feeding of Arctic Copepods

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