Developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets
During accidental crude oil spills and permitted discharges of produced water into the marine environment, a large fraction of naturally occurring oil components will be contained in micron-sized oil droplets. Toxicity is assumed to be associated with the dissolved fraction of oil components, howeve...
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2639380 2023-05-15T15:27:45+02:00 Developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets Hansen, Bjørn Henrik Salaberria, Iurgi Read, Kari Wold, Per-Arvid Hammer, Karen Marie Olsen, Anders Johny Altin, Dag Øverjordet, Ida Beathe Nordtug, Trond Bardal, Tora Kjørsvik, Elin 2019 http://hdl.handle.net/11250/2639380 https://doi.org/10.1016/j.marenvres.2019.104753 eng eng Elsevier Andre: BP EXPLORATION & PRODUCTION INC., ANDTHE BP GULF COAST RESTO Marine Environmental Research. 2019, 150 . urn:issn:0141-1136 http://hdl.handle.net/11250/2639380 https://doi.org/10.1016/j.marenvres.2019.104753 cristin:1709887 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 12 150 Marine Environmental Research Journal article Peer reviewed 2019 ftntnutrondheimi https://doi.org/10.1016/j.marenvres.2019.104753 2020-02-05T23:32:30Z During accidental crude oil spills and permitted discharges of produced water into the marine environment, a large fraction of naturally occurring oil components will be contained in micron-sized oil droplets. Toxicity is assumed to be associated with the dissolved fraction of oil components, however the potential contribution of oil droplets to toxicity is currently not well known. In the present work we wanted to evaluate the contribution of oil droplets to effects on normal development of Atlantic cod (Gadus morhua) through exposing embryos for 96 h to un-filtered (dispersions containing droplets) and filtered (water soluble fractions) dispersions in a flow-through system at dispersion concentrations ranging from 0.14 to 4.34 mg oil/L. After exposure, the embryos were kept in clean seawater until hatch when survival, development and morphology were assessed. The experiment was performed at two different stages of embryonic development to cover two potentially sensitive stages (gastrulation and organogenesis). Exposure of cod embryos to crude oil dispersions caused acute and delayed toxicity, including manifestation of morphological deformations in hatched larvae. Oil droplets appear to contribute to some of the observed effects including mortality, larvae condition (standard length, body surface, and yolk sac size), spinal deformations as well as alterations in craniofacial and jaw development. The timing of exposure may be essential for the development of effects as higher acute mortality was observed when embryos were exposed from the start of gastrulation (Experiment 1) than when exposed during organogenesis (Experiment 2). Even though low mortality was observed when exposed during organogenesis, concentration-dependent mortality was observed during recovery. publishedVersion © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/). Article in Journal/Newspaper atlantic cod Gadus morhua NTNU Open Archive (Norwegian University of Science and Technology) Marine Environmental Research 150 104753 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
During accidental crude oil spills and permitted discharges of produced water into the marine environment, a large fraction of naturally occurring oil components will be contained in micron-sized oil droplets. Toxicity is assumed to be associated with the dissolved fraction of oil components, however the potential contribution of oil droplets to toxicity is currently not well known. In the present work we wanted to evaluate the contribution of oil droplets to effects on normal development of Atlantic cod (Gadus morhua) through exposing embryos for 96 h to un-filtered (dispersions containing droplets) and filtered (water soluble fractions) dispersions in a flow-through system at dispersion concentrations ranging from 0.14 to 4.34 mg oil/L. After exposure, the embryos were kept in clean seawater until hatch when survival, development and morphology were assessed. The experiment was performed at two different stages of embryonic development to cover two potentially sensitive stages (gastrulation and organogenesis). Exposure of cod embryos to crude oil dispersions caused acute and delayed toxicity, including manifestation of morphological deformations in hatched larvae. Oil droplets appear to contribute to some of the observed effects including mortality, larvae condition (standard length, body surface, and yolk sac size), spinal deformations as well as alterations in craniofacial and jaw development. The timing of exposure may be essential for the development of effects as higher acute mortality was observed when embryos were exposed from the start of gastrulation (Experiment 1) than when exposed during organogenesis (Experiment 2). Even though low mortality was observed when exposed during organogenesis, concentration-dependent mortality was observed during recovery. publishedVersion © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/). |
format |
Article in Journal/Newspaper |
author |
Hansen, Bjørn Henrik Salaberria, Iurgi Read, Kari Wold, Per-Arvid Hammer, Karen Marie Olsen, Anders Johny Altin, Dag Øverjordet, Ida Beathe Nordtug, Trond Bardal, Tora Kjørsvik, Elin |
spellingShingle |
Hansen, Bjørn Henrik Salaberria, Iurgi Read, Kari Wold, Per-Arvid Hammer, Karen Marie Olsen, Anders Johny Altin, Dag Øverjordet, Ida Beathe Nordtug, Trond Bardal, Tora Kjørsvik, Elin Developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets |
author_facet |
Hansen, Bjørn Henrik Salaberria, Iurgi Read, Kari Wold, Per-Arvid Hammer, Karen Marie Olsen, Anders Johny Altin, Dag Øverjordet, Ida Beathe Nordtug, Trond Bardal, Tora Kjørsvik, Elin |
author_sort |
Hansen, Bjørn Henrik |
title |
Developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets |
title_short |
Developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets |
title_full |
Developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets |
title_fullStr |
Developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets |
title_full_unstemmed |
Developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets |
title_sort |
developmental effects in fish embryos exposed to oil dispersions – the impact of crude oil micro-droplets |
publisher |
Elsevier |
publishDate |
2019 |
url |
http://hdl.handle.net/11250/2639380 https://doi.org/10.1016/j.marenvres.2019.104753 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
12 150 Marine Environmental Research |
op_relation |
Andre: BP EXPLORATION & PRODUCTION INC., ANDTHE BP GULF COAST RESTO Marine Environmental Research. 2019, 150 . urn:issn:0141-1136 http://hdl.handle.net/11250/2639380 https://doi.org/10.1016/j.marenvres.2019.104753 cristin:1709887 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.marenvres.2019.104753 |
container_title |
Marine Environmental Research |
container_volume |
150 |
container_start_page |
104753 |
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1766358160644243456 |