Investigating the use of oil platform marine fouling invertebrates as monitors of oil exposure in the Northern Gulf of Mexico

Pie, Hannah V.; Heyes, Andrew; Mitchelmore, Carys L.

doi:10.1016/j.scitotenv.2014.11.050

Cited by 18 publications

(4 citation statements)

References 47 publications

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“…In this study, total (Σ) APAH in bivalves were ca 2 to 10 times greater than ΣPAHs concentration although ΣAPAHs were 1.2 to 4.5 times lower in sediments at each sampling site. A similar trend was reported for vertebrates and invertebrates from the Northern Gulf of Mexico after the Deep Water Horizon (DWH) oil spill and Dubai Star Bunker fuel oil spill in San Francisco Bay . An increase in APAHs relative to parent PAHs was also observed in benthic invertebrates from the North Chukchi Sea …”

Section: Introductionsupporting

confidence: 75%

“…A similar trend was reported for vertebrates and invertebrates from the Northern Gulf of Mexico after the Deep Water Horizon (DWH) oil spill and Dubai Star Bunker fuel oil spill in San Francisco Bay. [15][16][17] An increase in APAHs relative to parent PAHs was also observed in benthic invertebrates from the North Chukchi Sea. 18 Although the unsubstituted PAHs have received more attention, evidence is mounting that the alkylated congeners are more inherently toxic than their parent analogs.…”

Section: Introductionmentioning

confidence: 84%

See 1 more Smart Citation

Validation of a simultaneous method for determining polycyclic aromatic compounds and alkylated isomers in biota

Idowu

Francisco

Thomas

et al. 2018

Rapid Comm Mass Spectrometry

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Section: Introductionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 84%

Validation of a simultaneous method for determining polycyclic aromatic compounds and alkylated isomers in biota

Idowu

Francisco

Thomas

et al. 2018

Rapid Comm Mass Spectrometry

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“…Some PAHs may be preferentially metabolized such as Pyr, Benzo[a]pyrene (BaP), and Benzo[a]anthracene (BaA) (Ertl et al, 2016), which may affect the ratios of PAH isomers such as BaP and BeP (Baumard et al, 2001). Since PAH ratios are often used as diagnostic ratios to track pyrogenic or petrogenic sources (Pie et al, 2015), preferential metabolism could lead to false readings and the calculation should be calibrated accordingly.…”

Section: Physiological Pah-accumulation Affinitymentioning

confidence: 99%

Impact of Polycyclic Aromatic Hydrocarbon Accumulation on Oyster Health

Gan

Martin

2021

Front. Physiol.

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In the past decade, the Deepwater Horizon oil spill triggered a spike in investigatory effort on the effects of crude oil chemicals, most notably polycyclic aromatic hydrocarbons (PAHs), on marine organisms and ecosystems. Oysters, susceptible to both waterborne and sediment-bound contaminants due to their filter-feeding and sessile nature, have become of great interest among scientists as both a bioindicator and model organism for research on environmental stressors. It has been shown in many parts of the world that PAHs readily bioaccumulate in the soft tissues of oysters. Subsequent experiments have highlighted the negative effects associated with exposure to PAHs including the upregulation of antioxidant and detoxifying gene transcripts and enzyme activities such as Superoxide dismutase, Cytochrome P450 enzymes, and Glutathione S-transferase, reduction in DNA integrity, increased infection prevalence, and reduced and abnormal larval growth. Much of these effects could be attributed to either oxidative damage, or a reallocation of energy away from critical biological processes such as reproduction and calcification toward health maintenance. Additional abiotic stressors including increased temperature, reduced salinity, and reduced pH may change how the oyster responds to environmental contaminants and may compound the negative effects of PAH exposure. The negative effects of acidification and longer-term salinity changes appear to add onto that of PAH toxicity, while shorter-term salinity changes may induce mechanisms that reduce PAH exposure. Elevated temperatures, on the other hand, cause such large physiological effects on their own that additional PAH exposure either fails to cause any significant effects or that the effects have little discernable pattern. In this review, the oyster is recognized as a model organism for the study of negative anthropogenic impacts on the environment, and the effects of various environmental stressors on the oyster model are compared, while synergistic effects of these stressors to PAH exposure are considered. Lastly, the understudied effects of PAH photo-toxicity on oysters reveals drastic increases to the toxicity of PAHs via photooxidation and the formation of quinones. The consequences of the interaction between local and global environmental stressors thus provide a glimpse into the differential response to anthropogenic impacts across regions of the world.

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“…Concurrently, anthropogenic activity along coastlines displays a concentration gradient from highest to lowest (nearshore to offshore, respectively) and is routinely driven by seasonal climatic activity ( Dachs et al, 1999 ; Gray et al, 2002 ; Yamashita and Tanoue, 2003 ; Fabry et al, 2008 ; Gavio et al, 2010 ; Linsmayer et al, 2020 ; Zhu et al, 2022 ). As a consequence, coastal marine ecosystems are exposed to a diversity of anthropogenic stressors and these environments are increasingly becoming “sinks” for complex mixtures of anthropogenic chemicals originating from diverse sources ( Peters et al, 1997 ; Atkinson et al, 2003 ; Wurl and Obbard, 2004 ; Fent et al, 2006 ; Schiedek et al, 2007 ; Halpern et al, 2008 ; Jones, 2010 ; Burns and Brinkman, 2011 ; Dafforn et al, 2011 ; Vidal-Dorsch et al, 2012 ; French et al, 2015 ; Pie et al, 2015 ; Wear and Thurber, 2015 ; Downs et al, 2016 ; Archer et al, 2017 ; Law, 2017 ; Worm et al, 2017 ; Lebreton et al, 2018 ; Mitchelmore et al, 2019 ). As a consequence, marine organisms in coastal marine ecosystems face significant threats from diverse anthropogenic chemical pollutants.…”

Section: Introductionmentioning

confidence: 99%

Synergistic and antagonistic interactions of oxybenzone and ocean acidification: new insight into vulnerable cellular processes in non-calcifying anthozoans

Morgan,

Williams,

Breeze

et al. 2024

Front. Physiol.

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Cnidarians face significant threats from ocean acidification (OA) and anthropogenic pollutants such as oxybenzone (BP-3). The convergence of threats from multiple stressors is an important area to investigate because of potential significant synergistic or antagonistic interactions. Real-time quantitative PCR was performed to characterize the expression profiles of twenty-two genes of interest (GOI) in sea anemones (Exaiptasia diaphana) exposed to one of four treatments: 1) 96 h of OA conditions followed by a 4 h exposure to 20 ppb BP-3; 2) Exposure to 4 h 20 ppb BP-3 without 96 h of OA; 3) Exposure to 96 h of OA alone; or 4) laboratory conditions with no exposure to BP-3 and/or OA. These 22 GOIs represent cellular processes associated with proton-dependent transport, sodium-dependent transport, metal cation binding/transport, extracellular matrix, amino acid metabolism/transport, immunity, and/or steroidogenesis. These 22 GOIs provide new insight into vulnerable cellular processes in non-calcifying anthozoans exposed to OA and BP-3. Expression profiles were categorized as synergistic, antagonistic, or additive of BP-3 in the presence of OA. Two GOIs were synergistic. Fifteen GOIs were antagonistic and the remaining five GOIs were additive in response to BP-3 in acidified seawater. A subset of these GOIs appear to be candidate biomarkers for future in situ investigations. In human health, proton-dependent monocarboxylate transporters (MCTs) are promising pharmacological targets and recognized as potential biomarkers. By comparison, these same MCTs appear to be targets of xenobiotic chemical pollutants in cnidarian physiology. In the presence of BP-3, a network of collagen synthesis genes are upregulated and antagonistic in their expression profiles. Cytochrome b561 is a critical protein required for collagen synthesis and in silico modeling demonstrates BP-3 binds in the pocket of cytochrome b561. Understanding the underlying molecular mechanisms of “drug-like” compounds such as BP-3 may lead to a more comprehensive interpretation of transcriptional expression profiles. The collective antagonistic responses of GOIs associated with collagen synthesis strongly suggests these GOIs should be considered candidate biomarkers of effect. GOIs with synergistic and additive responses represent candidate biomarkers of exposure. Results show the effects of OA and BP-3 are interactive with respect to their impact on cnidarians. This investigation offers mechanistic data that supports the expression profiles and underpins higher order physiological responses.

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Investigating the use of oil platform marine fouling invertebrates as monitors of oil exposure in the Northern Gulf of Mexico

Cited by 18 publications

References 47 publications

Validation of a simultaneous method for determining polycyclic aromatic compounds and alkylated isomers in biota

Validation of a simultaneous method for determining polycyclic aromatic compounds and alkylated isomers in biota

Impact of Polycyclic Aromatic Hydrocarbon Accumulation on Oyster Health

Synergistic and antagonistic interactions of oxybenzone and ocean acidification: new insight into vulnerable cellular processes in non-calcifying anthozoans

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