Developmental effects in fish embryos exposed to oil dispersions – The impact of crude oil micro-droplets

Hansen, Bjørn Henrik; Salaberria, Iurgi; Read, Kari Ella; Wold, Per-Arvid; Hammer, Karen Marie; Olsen, Anders J.; Altin, Dag; Øverjordet, Ida Beathe; Nordtug, Trond; Bardal, Tora; Kjørsvik, Elin

doi:10.1016/j.marenvres.2019.104753

Cited by 36 publications

(23 citation statements)

References 51 publications

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“…In cod, retinol dehydrogenase and retinoid binding proteins were modulated by crude oil exposure [ 57 ], which has been mechanistically linked to the disruption of eye developmental processes causing a reduced eye size and a protruding eye lens [ 58 ]. Also, the distance between eye and forehead, previously used as an indication of craniofacial deformations in oil-exposed cod larvae [ 39 , 59 ], was shorter in larvae for the two highest exposure concentrations compared to controls ( Table 1 ).…”

Section: Resultsmentioning

confidence: 93%

Atlantic cod (Gadus morhua) embryos are highly sensitive to short-term 3,4-dichloroaniline exposure

et al. 2021

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Section: Resultsmentioning

confidence: 93%

Atlantic cod (Gadus morhua) embryos are highly sensitive to short-term 3,4-dichloroaniline exposure

et al. 2021

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“…As evidenced by the two-dimensional gas chromatography analysis, we see that using standard PAH quantification techniques in a whole crude oil exposure scenario risks underestimating the contribution and the mechanistic understanding of the effects of semi-polar, polar, and monoaromatic compounds, which have been demonstrated to be of toxicological significance 68 and worthy of additional investigation 69 . The presence of oil droplets in the system alone may not be linked to increased toxicity as ELS studies have shown embryos to be mainly affected by the WSF of crude oil 70,71 ; however, oil droplets have been observed to contribute to acute and sub-lethal effects in Atlantic cod ELS 72 . Crude oil droplets, when present, adhere to the chorion of polar cod embryos 37 and may increase the internal concentrations of PAHs, especially larger and alkylated homologues 70 .…”

Section: Discussionmentioning

confidence: 99%

Combined effects of crude oil exposure and warming on eggs and larvae of an arctic forage fish

Bender

Giebichenstein

Teisrud

et al. 2021

Sci Rep

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Climate change, along with environmental pollution, can act synergistically on an organism to amplify adverse effects of exposure. The Arctic is undergoing profound climatic change and an increase in human activity, resulting in a heightened risk of accidental oil spills. Embryos and larvae of polar cod (Boreogadus saida), a key Arctic forage fish species, were exposed to low levels of crude oil concurrently with a 2.3 °C increase in water temperature. Here we show synergistic adverse effects of increased temperature and crude oil exposure on early life stages documented by an increased prevalence of malformations and mortality in exposed larvae. The combined effects of these stressors were most prevalent in the first feeding larval stages despite embryonic exposure, highlighting potential long-term consequences of exposure for survival, growth, and reproduction. Our findings suggest that a warmer Arctic with greater human activity will adversely impact early life stages of this circumpolar forage fish.

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“…Others have contributed oil toxicity to yolk-sac larvae to their sensitivity to low total polyaromatic hydrocarbons (TPAH) [79,80]. [81] Have concluded that exposure of embryonic stages of Atlantic cod (Gadus morhua) fish to oil can lead to larval mortality and morphological deformities. Exposure during the embryonic period (pre-hatch) of haddock larvae (Melanogrammus aeglefinus) resulted in reduced eye size and increased incidence of abnormal eye morphology, also oil-exposed fish had reduced mean blood flow speed, flow rate, and flow pulsatility [82,83].…”

Section: Chemical Analysis and Toxicity Of Cewafmentioning

confidence: 99%

The Response of Sobaity Sea Bream <i>Sparidentex hasta</i> Larvae to the Toxicity of Dispersed and Undispersed Oil

Karam¹,

Annabi-Trabelsi²,

Al-Nuaimi³

et al. 2021

Pol. J. Environ. Stud.

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Accidental oil spillages can release millions of barrels of oil into the marine environment threatening aquatic wildlife like fisheries. As a part of the oil spill response strategy, several chemical dispersants have been recommended that have been successfully used elsewhere. However, the adverse effects of dispersed oil are unknown to fish species in Kuwait. Therefore, this study investigated the toxicity of water-accommodated fraction (WAF) and chemically enhanced water-accommodated fraction (CEWAF) of Kuwait crude oil (KCO) with three dispersants (Corexit® 9500, Corexit® 9527, and Slickgone® NS) against the larvae of the sobaity sea bream Sparidentex hasta which is of an international economic significance. Total petroleum hydrocarbons (TPH) were used for comparison of chemical compounds partitioned in WAF of dispersed and non-dispersed oil. Toxicity test results with fish larvae showed that WAF of non-dispersed oil and Corexit® 9527 treated CEWAF had similar LC 50 values (0.12 g oil. l -1 ) whereas CEWAF's of Corexit® 9500 and Slickgone® NS CEWAF showed lower toxicity.

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Developmental effects in fish embryos exposed to oil dispersions – The impact of crude oil micro-droplets

Cited by 36 publications

References 51 publications

Atlantic cod (Gadus morhua) embryos are highly sensitive to short-term 3,4-dichloroaniline exposure

Atlantic cod (Gadus morhua) embryos are highly sensitive to short-term 3,4-dichloroaniline exposure

Combined effects of crude oil exposure and warming on eggs and larvae of an arctic forage fish

The Response of Sobaity Sea Bream <i>Sparidentex hasta</i> Larvae to the Toxicity of Dispersed and Undispersed Oil

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