Effects of mine tailings exposure on early life stages of Atlantic cod
In Norway, mine tailings waste can be deposited by coastal submarine dispersal. Mine tailings slurry includes fine particles <10 µm with elevated levels of metals (e.g., copper, iron) from residual mineral ore. Prolonged suspension of small particles in the water column may bring them into contac...
Published in: | Environmental Toxicology and Chemistry |
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Online Access: | https://hdl.handle.net/10037/17287 https://doi.org/10.1002/etc.4415 |
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ftunivtroemsoe:oai:munin.uit.no:10037/17287 2023-05-15T15:27:17+02:00 Effects of mine tailings exposure on early life stages of Atlantic cod Reinardy, Helena Pedersen, Kristine Bondo Nahrgang, Jasmine Frantzen, Marianne 2019-03-22 https://hdl.handle.net/10037/17287 https://doi.org/10.1002/etc.4415 eng eng Wiley Environmental Toxicology and Chemistry info:eu-repo/grantAgreement/RCN/NORDSATS/195160/Norway/Northern Environmental Waste Management/EWMA/ Reinardy H, Pedersen KB, Nahrgang J, Frantzen m. Effects of mine tailings exposure on early life stages of Atlantic cod. Environmental Toxicology and Chemistry. 2019;38(7):1446-1454 FRIDAID 1698472 doi:10.1002/etc.4415 0730-7268 1552-8618 https://hdl.handle.net/10037/17287 openAccess Copyright 2019 The Author(s) VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecotoxicology: 489 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økotoksikologi: 489 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2019 ftunivtroemsoe https://doi.org/10.1002/etc.4415 2021-06-25T17:57:01Z In Norway, mine tailings waste can be deposited by coastal submarine dispersal. Mine tailings slurry includes fine particles <10 µm with elevated levels of metals (e.g., copper, iron) from residual mineral ore. Prolonged suspension of small particles in the water column may bring them into contact with locally spawned pelagic fish eggs, including Atlantic cod, Gadus morhua . Newly fertilized cod embryos were exposed to suspended mine tailings particles up to 3.2 mg/L in flow‐through aquaria for a total of 21 d. Significantly more particles adhered to the surface of the chorion from the high treatment after 11‐d exposure, and dissolved Cu concentrations increased in the water (up to 0.36 ± 0.06 µg/L). There was no adverse effect on embryo mortality but an 8% elevation in larval mortality. There were no differences with treatment on timing of hatching, embryo and larva morphometrics, abnormalities, or cardiac activity. There was a treatment‐dependent up‐regulation of stress marker genes ( hspa8, cyp1c1 ) but no indication of metal‐induced activation of metallothionien ( mt gene transcription). Transcription markers for DNA and histone methyltransferases did show treatment‐related up‐regulation, indicative of altered methylation in larvae when developmental methylation patterns are determined, indicating some level of chronic toxicity that may have longer‐term effects. Article in Journal/Newspaper atlantic cod Gadus morhua University of Tromsø: Munin Open Research Archive Norway Environmental Toxicology and Chemistry 38 7 1446 1454 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecotoxicology: 489 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økotoksikologi: 489 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecotoxicology: 489 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økotoksikologi: 489 Reinardy, Helena Pedersen, Kristine Bondo Nahrgang, Jasmine Frantzen, Marianne Effects of mine tailings exposure on early life stages of Atlantic cod |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecotoxicology: 489 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økotoksikologi: 489 |
description |
In Norway, mine tailings waste can be deposited by coastal submarine dispersal. Mine tailings slurry includes fine particles <10 µm with elevated levels of metals (e.g., copper, iron) from residual mineral ore. Prolonged suspension of small particles in the water column may bring them into contact with locally spawned pelagic fish eggs, including Atlantic cod, Gadus morhua . Newly fertilized cod embryos were exposed to suspended mine tailings particles up to 3.2 mg/L in flow‐through aquaria for a total of 21 d. Significantly more particles adhered to the surface of the chorion from the high treatment after 11‐d exposure, and dissolved Cu concentrations increased in the water (up to 0.36 ± 0.06 µg/L). There was no adverse effect on embryo mortality but an 8% elevation in larval mortality. There were no differences with treatment on timing of hatching, embryo and larva morphometrics, abnormalities, or cardiac activity. There was a treatment‐dependent up‐regulation of stress marker genes ( hspa8, cyp1c1 ) but no indication of metal‐induced activation of metallothionien ( mt gene transcription). Transcription markers for DNA and histone methyltransferases did show treatment‐related up‐regulation, indicative of altered methylation in larvae when developmental methylation patterns are determined, indicating some level of chronic toxicity that may have longer‐term effects. |
format |
Article in Journal/Newspaper |
author |
Reinardy, Helena Pedersen, Kristine Bondo Nahrgang, Jasmine Frantzen, Marianne |
author_facet |
Reinardy, Helena Pedersen, Kristine Bondo Nahrgang, Jasmine Frantzen, Marianne |
author_sort |
Reinardy, Helena |
title |
Effects of mine tailings exposure on early life stages of Atlantic cod |
title_short |
Effects of mine tailings exposure on early life stages of Atlantic cod |
title_full |
Effects of mine tailings exposure on early life stages of Atlantic cod |
title_fullStr |
Effects of mine tailings exposure on early life stages of Atlantic cod |
title_full_unstemmed |
Effects of mine tailings exposure on early life stages of Atlantic cod |
title_sort |
effects of mine tailings exposure on early life stages of atlantic cod |
publisher |
Wiley |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/17287 https://doi.org/10.1002/etc.4415 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
Environmental Toxicology and Chemistry info:eu-repo/grantAgreement/RCN/NORDSATS/195160/Norway/Northern Environmental Waste Management/EWMA/ Reinardy H, Pedersen KB, Nahrgang J, Frantzen m. Effects of mine tailings exposure on early life stages of Atlantic cod. Environmental Toxicology and Chemistry. 2019;38(7):1446-1454 FRIDAID 1698472 doi:10.1002/etc.4415 0730-7268 1552-8618 https://hdl.handle.net/10037/17287 |
op_rights |
openAccess Copyright 2019 The Author(s) |
op_doi |
https://doi.org/10.1002/etc.4415 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
38 |
container_issue |
7 |
container_start_page |
1446 |
op_container_end_page |
1454 |
_version_ |
1766357724663119872 |