Effects of petroleum exposure on birds: A review

King, Mason D.; Elliott, John E.; Williams, Tony

doi:10.1016/j.scitotenv.2020.142834

Cited by 54 publications

(46 citation statements)

References 275 publications

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“…The actual concentration of oil load may have contributed to these differences. Noteworthy is that at the concentration levels of crude oil used in this study, which are lower than concentrations used in other studies (for a review see King et al, 2020), we did not observe changes in appetite or loss of body mass in the exposed groups. However, we did observe diarrheic feces in the High-oil-exposed group beginning on the third week of exposure, suggesting a potential disruption of the hepatic function and the digestive tract integrity (Leighton, 1986).…”

Section: Direct Effects Of Crude Oil Exposure In the P 0 Parental Generationcontrasting

confidence: 58%

“…Total sum of PAH concentrations in the dietary treatments was 0, 800 and 2,400 ng/(g of food) for the Control, Low and the High exposed groups diets, respectively, (Supplementary Figure 1). These doses are below concentrations used in studies with wild marine species (for a review, see King et al, 2020). In contrast, none of the egg samples from the parental groups exhibited any detectable content of PAHs after analysis (Supplementary Table 1).…”

Section: Diet Preparationmentioning

confidence: 90%

“…Crude oil exposure and its components has been shown to induce transgenerational effects in fish (Corrales et al, 2014;. However, the study of transgenerational effects of crude oil exposure in avian species has received little attention (Paiva et al, 2018;King et al, 2020). To address this, we demonstrated some altered phenotypes related to thermoregulation, respiratory physiology, and gas exchange in non-exposed eggs and hatchlings quail obtained from the parental adult exposed groups.…”

Section: Transgenerational Developmental Effects Of Crude Oil In the F 1 Generationmentioning

confidence: 94%

“…However, these factors are likely to be a cause of the increased Wl oss in eggs from Highoil-exposed adults. Furthermore, embryonic survival could be compromised in the face of fluctuating environmental conditions that challenge the maintenance of adequate humidity and embryonic oxygen consumption in the wild (King et al, 2020). Therefore, further investigations to elucidate if dietary exposure to crude oil at the levels used in this study will induce similar effects in fecundity and eggshell characteristics are warrant.…”

Section: Transgenerational Developmental Effects Of Crude Oil In the F 1 Generationmentioning

confidence: 99%

“…Representative samples of each treatment diet were analyzed by ALS Environmental (ALS Environmental, Kelso, United States) to obtain total polycyclic aromatic hydrocarbons (PAH) concentrations ( totPAH). PAHs are petroleum components affecting morphology, cardiac system physiology, flying and swimming performance of vertebrates (Harr et al, 2017b,c;Incardona and Scholz, 2018;Perrichon et al, 2018;King et al, 2020). Thus, determination of [PAH] in dietarily experimental treatments is widely accepted as a valid proxy indication of toxicity level of each treatment in experimental protocols involving animal exposures (Mager et al, 2014;Incardona and Scholz, 2018;Bautista et al, 2020).…”

Section: Diet Preparationmentioning

confidence: 99%

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Dietary Exposure to Low Levels of Crude Oil Affects Physiological and Morphological Phenotype in Adults and Their Eggs and Hatchlings of the King Quail (Coturnix chinensis)

et al. 2021

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Despite the current knowledge of the devastating effects of external exposure to crude oil on animal mortality, the study of developmental, transgenerational effects of such exposure has received little attention. We used the king quail as an animal model to determine if chronic dietary exposure to crude oil in a parental population would affect morpho-physiological phenotypic variables in their immediate offspring generation. Adult quail were separated into three groups: (1) Control, and two experimental groups dietarily exposed for at least 3 weeks to (2) Low (800 PAH ng/g food), or (3) High (2,400 PAH ng/g food) levels of crude oil. To determine the parental influence on their offspring, we measured metabolic and respiratory physiology in exposed parents and in their non-exposed eggs and hatchlings. Body mass and numerous metabolic (e.g., O2 consumption, CO2 production) and respiratory (e.g., ventilation frequency and volume) variables did not vary between control and oil exposed parental groups. In contrast, blood PO2, PCO2, and SO2 varied among parental groups. Notably, water loss though the eggshell was increased in eggs from High oil level exposed parents. Respiratory variables of hatchlings did not vary between populations, but hatchlings obtained from High oil-exposed parents exhibited lower capacities to maintain body temperature while exposed to a cooling protocol in comparison to hatchlings from Low- and Control-derived parents. The present study demonstrates that parental exposure to crude oil via diet impacts some aspects of physiological performance of the subsequent first (F1) generation.

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Section: Direct Effects Of Crude Oil Exposure In the P 0 Parental Generationcontrasting

confidence: 58%

Section: Diet Preparationmentioning

confidence: 90%

Section: Transgenerational Developmental Effects Of Crude Oil In the F 1 Generationmentioning

confidence: 94%

Section: Transgenerational Developmental Effects Of Crude Oil In the F 1 Generationmentioning

confidence: 99%

Section: Diet Preparationmentioning

confidence: 99%

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Dietary Exposure to Low Levels of Crude Oil Affects Physiological and Morphological Phenotype in Adults and Their Eggs and Hatchlings of the King Quail (Coturnix chinensis)

et al. 2021

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Effects of Avian Eggshell Oiling With Diluted Bitumen Show Sublethal Embryonic Polycyclic Aromatic Compound Exposure

King

Elliott

Marlatt

et al. 2021

Enviro Toxic and Chemistry

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Breeding birds that become oiled may contaminate the shells of their eggs, and studies of conventional crude oil suggest that even small quantities can be absorbed through the eggshell and cause embryotoxicity. Unconventional crude oils remain untested, so we evaluated whether a major Canadian oil sands product, diluted bitumen (dilbit), would be absorbed and cause toxicity when applied to eggshells of two species, domestic chicken (Gallus gallus domesticus) and double-crested cormorant (Nannopterum auritum). We artificially incubated eggs and applied lightly weathered dilbit (Cold Lake blend) to the eggshells (0.015-0.15 mg g −1 egg in chicken; 0.1-0.4 mg g −1 egg in cormorant) at various points during incubation before sampling prehatch embryos. Polycyclic aromatic compound (PAC) residue in cormorant embryos was elevated only at the highest dilbit application (0.4 mg g −1 egg) closest (day 16) to sampling on day 22. In contrast, cormorant liver cytochrome P450 1a4 (Cyp1a4) mRNA expression (quantitative polymerase chain reaction assay) was elevated only in embryos treated with the earliest and lowest dilbit application (0.1 mg g −1 egg on day 4). These results confirm that dilbit can cross through the eggshell and be absorbed by embryos, and they imply rapid biotransformation of PACs and a nonmonotonic Cyp1a4 response. Despite evidence of exposure in cormorant, we found no detectable effects on the frequency of survival, deformity, and gross lesions, nor did we find effects on physiological endpoints indicative of growth and cardiovascular function in either chicken or cormorant. In ovo dilbit exposure may be less toxic than well-studied conventional crude oils. The effects of an oil spill scenario involving dilbit to bird embryos might be subtle, and PACs may be rapidly metabolized.

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