Contrasting Effects of Predation Risk and Copper on Copepod Respiration Rates
Abstract Natural biotic and anthropogenic stressors can interact to alter contaminant toxicity. Energetic restrictions are potential mechanisms causing this pattern. To identify processes underlying observed effects of predation risk and copper (Cu) on delayed copepod age at maturity, we examined ho...
Published in: | Environmental Toxicology and Chemistry |
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crwiley:10.1002/etc.4804 2024-06-02T08:04:43+00:00 Contrasting Effects of Predation Risk and Copper on Copepod Respiration Rates Lode, Torben Heuschele, Jan Andersen, Tom Titelman, Josefin Hylland, Ketil Borgå, Katrine Universitetet i Oslo 2020 http://dx.doi.org/10.1002/etc.4804 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.4804 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4804 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.4804 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4804 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Environmental Toxicology and Chemistry volume 39, issue 9, page 1765-1773 ISSN 0730-7268 1552-8618 journal-article 2020 crwiley https://doi.org/10.1002/etc.4804 2024-05-03T10:35:52Z Abstract Natural biotic and anthropogenic stressors can interact to alter contaminant toxicity. Energetic restrictions are potential mechanisms causing this pattern. To identify processes underlying observed effects of predation risk and copper (Cu) on delayed copepod age at maturity, we examined how these 2 stressors affect respiration rates. We tested 2 very different copepod species: the large, pelagic calanoid Calanus finmarchicus and the small, semibenthic harpacticoid Tigriopus brevicornis . Adult individuals were exposed for 12 h to the treatments: predation risk, Cu (23 µg L −1 ), combined predation risk and Cu (23 µg L −1 ), or control. Oxygen concentrations were monitored continuously. The 2 species differed in their responses. We found no clear effects of either stressor in C. finmarchicus . In T. brevicornis , predation risk increased respiration rates, whereas Cu alone had little impact. In contrast, combined exposure to predation risk and Cu interacted to reduce respiration rates to less than expected. We further observed an effect of sex because female‐biased T. brevicornis replicates were more sensitive to both predation risk (increased respiration rates) and Cu exposure (reduced respiration rates). The present study provides further evidence that predation risk can interact with copepod responses toward Cu exposure. Interactive effects of biotic stressors ought to be considered to improve future marine environmental monitoring. Environ Toxicol Chem 2020;39:1765–1773. © 2020 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC. Article in Journal/Newspaper Calanus finmarchicus Wiley Online Library Environmental Toxicology and Chemistry 39 9 1765 1773 |
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Wiley Online Library |
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English |
description |
Abstract Natural biotic and anthropogenic stressors can interact to alter contaminant toxicity. Energetic restrictions are potential mechanisms causing this pattern. To identify processes underlying observed effects of predation risk and copper (Cu) on delayed copepod age at maturity, we examined how these 2 stressors affect respiration rates. We tested 2 very different copepod species: the large, pelagic calanoid Calanus finmarchicus and the small, semibenthic harpacticoid Tigriopus brevicornis . Adult individuals were exposed for 12 h to the treatments: predation risk, Cu (23 µg L −1 ), combined predation risk and Cu (23 µg L −1 ), or control. Oxygen concentrations were monitored continuously. The 2 species differed in their responses. We found no clear effects of either stressor in C. finmarchicus . In T. brevicornis , predation risk increased respiration rates, whereas Cu alone had little impact. In contrast, combined exposure to predation risk and Cu interacted to reduce respiration rates to less than expected. We further observed an effect of sex because female‐biased T. brevicornis replicates were more sensitive to both predation risk (increased respiration rates) and Cu exposure (reduced respiration rates). The present study provides further evidence that predation risk can interact with copepod responses toward Cu exposure. Interactive effects of biotic stressors ought to be considered to improve future marine environmental monitoring. Environ Toxicol Chem 2020;39:1765–1773. © 2020 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC. |
author2 |
Universitetet i Oslo |
format |
Article in Journal/Newspaper |
author |
Lode, Torben Heuschele, Jan Andersen, Tom Titelman, Josefin Hylland, Ketil Borgå, Katrine |
spellingShingle |
Lode, Torben Heuschele, Jan Andersen, Tom Titelman, Josefin Hylland, Ketil Borgå, Katrine Contrasting Effects of Predation Risk and Copper on Copepod Respiration Rates |
author_facet |
Lode, Torben Heuschele, Jan Andersen, Tom Titelman, Josefin Hylland, Ketil Borgå, Katrine |
author_sort |
Lode, Torben |
title |
Contrasting Effects of Predation Risk and Copper on Copepod Respiration Rates |
title_short |
Contrasting Effects of Predation Risk and Copper on Copepod Respiration Rates |
title_full |
Contrasting Effects of Predation Risk and Copper on Copepod Respiration Rates |
title_fullStr |
Contrasting Effects of Predation Risk and Copper on Copepod Respiration Rates |
title_full_unstemmed |
Contrasting Effects of Predation Risk and Copper on Copepod Respiration Rates |
title_sort |
contrasting effects of predation risk and copper on copepod respiration rates |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/etc.4804 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.4804 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4804 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.4804 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.4804 |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_source |
Environmental Toxicology and Chemistry volume 39, issue 9, page 1765-1773 ISSN 0730-7268 1552-8618 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/etc.4804 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
39 |
container_issue |
9 |
container_start_page |
1765 |
op_container_end_page |
1773 |
_version_ |
1800749362324701184 |