Combined effects of oil exposure, temperature and ultraviolet radiation on buoyancy and oxygen consumption of embryonic mahi-mahi, Coryphaena hippurus

Pasparakis, Christina; Sweet, Lauren E.; Stieglitz, John D.; Benetti, Daniel D.; Casente, Conrad T.; Roberts, Aaron P.; Grosell, Martin

doi:10.1016/j.aquatox.2017.07.021

Cited by 28 publications

(15 citation statements)

References 49 publications

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“…Similar effects have been observed in oil-exposed mahi mahi (Coryphaena hippurus) (Pasparakis et al, 2017). The mechanism behind this remains unclear, but one possibility is loss of water due to disruption of the perivetiline membrane or disruption of the osmotic control (Pasparakis et al, 2017). Even though we did observe some slick formation as seen in the H surf group, we argue that this group is also the more ecologically relevant exposure dose.…”

Section: Oil Droplet Foulingsupporting

confidence: 77%

“…In contrast, we have also observed that haddock eggs with oil droplets become negatively buoyant just before hatching and then sink to the bottom of the exposure tanks. Similar effects have been observed in oil-exposed mahi mahi (Coryphaena hippurus) (Pasparakis et al, 2017). The mechanism behind this remains unclear, but one possibility is loss of water due to disruption of the perivetiline membrane or disruption of the osmotic control (Pasparakis et al, 2017).…”

Section: Oil Droplet Foulingsupporting

confidence: 52%

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Untangling mechanisms of crude oil toxicity: linking gene expression, morphology and PAHs at two developmental stages in a cold-water fish

Sørhus¹,

Donald²,

Dasilva

et al. 2020

Preprint

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Early life stages of fish are highly sensitive to crude oil exposure and thus, short term exposures during critical developmental periods could have detrimental consequences for juvenile survival. To obtain a broader understanding of the mechanisms behind crude oil toxicity, we administered crude oil to Atlantic haddock (Melanogrammus aeglefinus) in short term (3-day) exposures at two developmental time-points, before and after onset of heartbeat. A frequent sampling regime enabled us to determine and link immediate PAH uptake, metabolite formation and gene expression changes (cyp1a,b,c,d, bmp10, abcb1 and rhag). In general, the embryotoxic consequences were more severe in the earliest exposure, and oil droplet fouling enhanced the toxicity. This study detected circulation-independent, oil-induced gene expression changes and separated phenotypes linked to proliferation, growth and disruption of formation events at early and late developmental stages. A greater understanding of crude oil toxicity is essential for predicting the consequences of oil spills.Graphic abstractHighlightsOil droplet fouling occurred in the whole water column and increased the oil toxicity.Early exposure resulted in higher PAH uptake due to lower metabolism resulting in more severe abnormalities.A rapid and circulation-indepenent regulation of bmp10 suggested a direct oil-induced effect on calcium homeostasis.Expression of rhag indicated a direct oil-induced effect on osmoregulatory cells and osmoregulation.Severe eye abnormalities especially in the late exposure was linked to inappropriate overexpression of cyp1b in the eyes.

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Section: Oil Droplet Foulingsupporting

confidence: 77%

Section: Oil Droplet Foulingsupporting

confidence: 52%

Untangling mechanisms of crude oil toxicity: linking gene expression, morphology and PAHs at two developmental stages in a cold-water fish

Sørhus¹,

Donald²,

Dasilva

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…This could be explained by the fact that the chorion of the embryos may act as an impermeable, or at least partially selective, barrier to crude oil compounds, as it does for the drug amiloride in medaka fish, for example (Cameron and Hunter, 1984). However, there are documented examples of oil-induced changes in embryonic function prior to rupturing of the chorion (Greer et al, 2019;Pasparakis et al, 2016Pasparakis et al, , 2017. An alternative explanation could be that even if dissolved oil components reach the embryo by passing through the chorion, the effects of oil do not become apparent until larval stages in zebrafish; for example, by increasing metabolic demand (Pasparakis et al, 2017).…”

Section: Parental Responses To Crude Oil Exposurementioning

confidence: 99%

Parental stressor exposure simultaneously conveys both adaptive and maladaptive larval phenotypes through epigenetic inheritance in the zebrafish (Danio rerio)

Bautista

Burggren

2019

Journal of Experimental Biology

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Genomic modifications occur slowly across generations, whereas short-term epigenetic inheritance of adaptive phenotypes may be immediately beneficial to large numbers of individuals, acting as a bridge for survival when adverse environments occur. In the present study, crude oil was used as an example of an environmental stressor. Adult zebrafish (P 0) were dietarily exposed for 3 weeks to no, low, medium or high concentrations of crude oil. The F 1 offspring obtained from the P 0 groups were then assessed for transgenerational epigenetic transfer of oil-induced phenotypes. The exposure did not alter body length, body and organ mass or condition factor in the P 0 groups. However, the P 0 fecundity of both sexes decreased in proportion to the amount of oil fed. The F 1 larvae from each P 0 were then exposed from 3 hpf to 5 dpf to oil in their ambient water. Remarkably, F 1 larvae derived from oil-exposed parents, when reared in oiled water, showed a 30% enhanced survival compared with controls (P<0.001). Unexpectedly, from day 3 to 5 of exposure, F 1 larvae from oil-exposed parents showed poorer survival in clean water (up to 55% decreased survival). Additionally, parental oil exposure induced bradycardia (presumably maladaptive) in F 1 larvae in both clean and oiled water. We conclude that epigenetic transgenerational inheritance can lead to an immediate and simultaneous inheritance of both beneficial and maladaptive traits in a large proportion of the F 1 larvae. The adaptive responses may help fish populations survive when facing transient environmental stressors.

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“…Indeed, during the last few decades, mahi has become an emergent model for examining population genetics, developmental physiology, metabolic responses, nutritional physiology, egg and larval performance over time, and climate change effects . Mahi have also been studied extensively regarding the impact of environmental toxicants . The emergence of this model fish has been accelerated by the need to develop more sophisticated scientific approaches for understanding the impact of environmental stressors, especially the impacts of the Deepwater Horizon Oil spill in 2010.…”

Section: Introductionmentioning

confidence: 99%

“…15,16 Mahi have also been studied extensively regarding the impact of environmental toxicants. [17][18][19][20][21][22][23][24][25][26][27][28][29][30] The emergence of this model fish has been accelerated by the need to develop more sophisticated scientific approaches for understanding the impact of environmental stressors, especially the impacts of the Deepwater Horizon Oil spill in 2010. Immediate mortality or fitness declines have been shown in fin fish populations as a result of pollution exposure (see numerous chapters in Burggren and Dubansky 31 ).…”

mentioning

confidence: 99%

Mahi‐mahi (Coryphaena hippurus) life development: morphological, physiological, behavioral and molecular phenotypes

Perrichon

Stieglitz

et al. 2019

Developmental Dynamics

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Background Mahi‐mahi ( Coryphaena hippurus ) is a commercially and ecologically important fish species that is widely distributed in tropical and subtropical waters. Biological attributes and reproductive capacities of mahi‐mahi make it a tractable model for experimental studies. In this study, life development of cultured mahi‐mahi from the zygote stage to adult has been described. Results A comprehensive developmental table has been created reporting development as primarily detailed observations of morphology. Additionally, physiological, behavioral, and molecular landmarks have been described to significantly contribute in the understanding of mahi life development. Conclusion Remarkably, despite the vast difference in adult size, many developmental landmarks of mahi map quite closely onto the development and growth of Zebrafish and other warm‐water, active Teleost fishes.

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Combined effects of oil exposure, temperature and ultraviolet radiation on buoyancy and oxygen consumption of embryonic mahi-mahi, Coryphaena hippurus

Cited by 28 publications

References 49 publications

Untangling mechanisms of crude oil toxicity: linking gene expression, morphology and PAHs at two developmental stages in a cold-water fish

Untangling mechanisms of crude oil toxicity: linking gene expression, morphology and PAHs at two developmental stages in a cold-water fish

Parental stressor exposure simultaneously conveys both adaptive and maladaptive larval phenotypes through epigenetic inheritance in the zebrafish (Danio rerio)

Mahi‐mahi (Coryphaena hippurus) life development: morphological, physiological, behavioral and molecular phenotypes

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