Sensitivity to Copper and Development of Culturing and Toxicity Test Procedures for the Antarctic Terrestrial Nematode Plectus murrayi
Abstract Environmental quality guideline values and remediation targets, specific to Antarctic ecosystems, are required for the risk assessment and remediation of contaminated sites in Antarctica. Ecotoxicological testing with Antarctic soil organisms is fundamental in determining reliable contamina...
Published in: | Environmental Toxicology and Chemistry |
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Online Access: | http://dx.doi.org/10.1002/etc.4630 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.4630 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4630 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.4630 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4630 |
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crwiley:10.1002/etc.4630 2024-06-23T07:47:32+00:00 Sensitivity to Copper and Development of Culturing and Toxicity Test Procedures for the Antarctic Terrestrial Nematode Plectus murrayi Brown, Kathryn E. Wasley, Jane King, Catherine K. Australian Antarctic Division 2020 http://dx.doi.org/10.1002/etc.4630 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.4630 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4630 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.4630 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4630 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 39, issue 2, page 482-491 ISSN 0730-7268 1552-8618 journal-article 2020 crwiley https://doi.org/10.1002/etc.4630 2024-05-31T08:12:01Z Abstract Environmental quality guideline values and remediation targets, specific to Antarctic ecosystems, are required for the risk assessment and remediation of contaminated sites in Antarctica. Ecotoxicological testing with Antarctic soil organisms is fundamental in determining reliable contaminant effect threshold concentrations. The present study describes the development of optimal culturing techniques and aqueous toxicity test procedures for an endemic Antarctic soil nematode, Plectus murrayi , which lives within interstitial waters between soil particles. Toxicity tests were of extended duration to account for the species’ physiology and life‐history characteristics. Plectus murrayi was sensitive to aqueous copper with a 50% effective concentration for egg‐hatching success of 139 µg/L. Hatched juveniles that were first exposed to copper as eggs appeared to be less sensitive than those first exposed at the hatched J2 stage, indicating a potential protective effect of the egg. Sensitivity of juveniles to copper increased with exposure duration, with 50% lethal concentrations of 478 and 117 µg/L at 21 and 28 d, respectively. The present study describes new methods for the application of an environmentally relevant test species to the risk assessment of contaminants in Antarctic soil and provides the first estimates of sensitivity to a toxicant for an Antarctic terrestrial microinvertebrate. Environ Toxicol Chem 2020;39:482–491. © 2019 SETAC Article in Journal/Newspaper Antarc* Antarctic Antarctica Wiley Online Library Antarctic The Antarctic Environmental Toxicology and Chemistry 39 2 482 491 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Environmental quality guideline values and remediation targets, specific to Antarctic ecosystems, are required for the risk assessment and remediation of contaminated sites in Antarctica. Ecotoxicological testing with Antarctic soil organisms is fundamental in determining reliable contaminant effect threshold concentrations. The present study describes the development of optimal culturing techniques and aqueous toxicity test procedures for an endemic Antarctic soil nematode, Plectus murrayi , which lives within interstitial waters between soil particles. Toxicity tests were of extended duration to account for the species’ physiology and life‐history characteristics. Plectus murrayi was sensitive to aqueous copper with a 50% effective concentration for egg‐hatching success of 139 µg/L. Hatched juveniles that were first exposed to copper as eggs appeared to be less sensitive than those first exposed at the hatched J2 stage, indicating a potential protective effect of the egg. Sensitivity of juveniles to copper increased with exposure duration, with 50% lethal concentrations of 478 and 117 µg/L at 21 and 28 d, respectively. The present study describes new methods for the application of an environmentally relevant test species to the risk assessment of contaminants in Antarctic soil and provides the first estimates of sensitivity to a toxicant for an Antarctic terrestrial microinvertebrate. Environ Toxicol Chem 2020;39:482–491. © 2019 SETAC |
author2 |
Australian Antarctic Division |
format |
Article in Journal/Newspaper |
author |
Brown, Kathryn E. Wasley, Jane King, Catherine K. |
spellingShingle |
Brown, Kathryn E. Wasley, Jane King, Catherine K. Sensitivity to Copper and Development of Culturing and Toxicity Test Procedures for the Antarctic Terrestrial Nematode Plectus murrayi |
author_facet |
Brown, Kathryn E. Wasley, Jane King, Catherine K. |
author_sort |
Brown, Kathryn E. |
title |
Sensitivity to Copper and Development of Culturing and Toxicity Test Procedures for the Antarctic Terrestrial Nematode Plectus murrayi |
title_short |
Sensitivity to Copper and Development of Culturing and Toxicity Test Procedures for the Antarctic Terrestrial Nematode Plectus murrayi |
title_full |
Sensitivity to Copper and Development of Culturing and Toxicity Test Procedures for the Antarctic Terrestrial Nematode Plectus murrayi |
title_fullStr |
Sensitivity to Copper and Development of Culturing and Toxicity Test Procedures for the Antarctic Terrestrial Nematode Plectus murrayi |
title_full_unstemmed |
Sensitivity to Copper and Development of Culturing and Toxicity Test Procedures for the Antarctic Terrestrial Nematode Plectus murrayi |
title_sort |
sensitivity to copper and development of culturing and toxicity test procedures for the antarctic terrestrial nematode plectus murrayi |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/etc.4630 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.4630 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4630 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.4630 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4630 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Environmental Toxicology and Chemistry volume 39, issue 2, page 482-491 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/etc.4630 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
39 |
container_issue |
2 |
container_start_page |
482 |
op_container_end_page |
491 |
_version_ |
1802651644888875008 |