Can domoic acid affect escape response in copepods?
Copepods are important grazers on toxic phytoplankton and serve as vectors for algal toxins up the marine food web. Success of phytoplankton depends among other factors on protection against grazers like copepods, and same way copepod survival and population resilience relies on their ability to esc...
Published in: | Harmful Algae |
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Online Access: | https://epic.awi.de/id/eprint/48407/ https://epic.awi.de/id/eprint/48407/1/Hardardottir_2018.pdf https://hdl.handle.net/10013/epic.f63099e5-bd0a-42a0-b3d9-e45d39fc4b36 https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:48407 2023-05-15T15:05:16+02:00 Can domoic acid affect escape response in copepods? Hardardottir, Sara Krock, Bernd Wohlrab, Sylke John, Uwe Nielsen, Torkel Gissel Lundholm, Nina 2018-10 application/pdf https://epic.awi.de/id/eprint/48407/ https://epic.awi.de/id/eprint/48407/1/Hardardottir_2018.pdf https://hdl.handle.net/10013/epic.f63099e5-bd0a-42a0-b3d9-e45d39fc4b36 https://hdl.handle.net/ unknown ELSEVIER SCIENCE BV https://epic.awi.de/id/eprint/48407/1/Hardardottir_2018.pdf https://hdl.handle.net/ Hardardottir, S. , Krock, B. orcid:0000-0003-4022-9101 , Wohlrab, S. orcid:0000-0003-3190-0880 , John, U. orcid:0000-0002-1297-4086 , Nielsen, T. G. and Lundholm, N. (2018) Can domoic acid affect escape response in copepods? , Harmful Algae, 79 , pp. 50-52 . doi:10.1016/j.hal.2018.08.009 <https://doi.org/10.1016/j.hal.2018.08.009> , hdl:10013/epic.f63099e5-bd0a-42a0-b3d9-e45d39fc4b36 EPIC3Harmful Algae, ELSEVIER SCIENCE BV, 79, pp. 50-52, ISSN: 1568-9883 Article isiRev 2018 ftawi 2021-12-24T15:44:17Z Copepods are important grazers on toxic phytoplankton and serve as vectors for algal toxins up the marine food web. Success of phytoplankton depends among other factors on protection against grazers like copepods, and same way copepod survival and population resilience relies on their ability to escape predators. Little is, however, known about the effect of toxins on the escape response of copepods. In this study we experimentally tested the hypothesis that the neurotoxin domoic acid (DA) produced by the diatom Pseudo-nitzschia affects escape responses of planktonic copepods. We found that the arctic copepods Calanus hyperboreus and C. glacialis reduced their escape response after feeding on a DA-producing diatom. The two species were not affected the same way; C. hyperboreus was affected after shorter exposure and less intake of DA. The negative effect on escape response was not related to the amount of DA accumulated in the copepods. Our results suggest that further research on the effects of DA on copepod behavior and DA toxicity mechanisms is required to evaluate the anti-grazing function of DA. Article in Journal/Newspaper Arctic Calanus hyperboreus Phytoplankton Copepods Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Harmful Algae 79 50 52 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Copepods are important grazers on toxic phytoplankton and serve as vectors for algal toxins up the marine food web. Success of phytoplankton depends among other factors on protection against grazers like copepods, and same way copepod survival and population resilience relies on their ability to escape predators. Little is, however, known about the effect of toxins on the escape response of copepods. In this study we experimentally tested the hypothesis that the neurotoxin domoic acid (DA) produced by the diatom Pseudo-nitzschia affects escape responses of planktonic copepods. We found that the arctic copepods Calanus hyperboreus and C. glacialis reduced their escape response after feeding on a DA-producing diatom. The two species were not affected the same way; C. hyperboreus was affected after shorter exposure and less intake of DA. The negative effect on escape response was not related to the amount of DA accumulated in the copepods. Our results suggest that further research on the effects of DA on copepod behavior and DA toxicity mechanisms is required to evaluate the anti-grazing function of DA. |
format |
Article in Journal/Newspaper |
author |
Hardardottir, Sara Krock, Bernd Wohlrab, Sylke John, Uwe Nielsen, Torkel Gissel Lundholm, Nina |
spellingShingle |
Hardardottir, Sara Krock, Bernd Wohlrab, Sylke John, Uwe Nielsen, Torkel Gissel Lundholm, Nina Can domoic acid affect escape response in copepods? |
author_facet |
Hardardottir, Sara Krock, Bernd Wohlrab, Sylke John, Uwe Nielsen, Torkel Gissel Lundholm, Nina |
author_sort |
Hardardottir, Sara |
title |
Can domoic acid affect escape response in copepods? |
title_short |
Can domoic acid affect escape response in copepods? |
title_full |
Can domoic acid affect escape response in copepods? |
title_fullStr |
Can domoic acid affect escape response in copepods? |
title_full_unstemmed |
Can domoic acid affect escape response in copepods? |
title_sort |
can domoic acid affect escape response in copepods? |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/48407/ https://epic.awi.de/id/eprint/48407/1/Hardardottir_2018.pdf https://hdl.handle.net/10013/epic.f63099e5-bd0a-42a0-b3d9-e45d39fc4b36 https://hdl.handle.net/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Calanus hyperboreus Phytoplankton Copepods |
genre_facet |
Arctic Calanus hyperboreus Phytoplankton Copepods |
op_source |
EPIC3Harmful Algae, ELSEVIER SCIENCE BV, 79, pp. 50-52, ISSN: 1568-9883 |
op_relation |
https://epic.awi.de/id/eprint/48407/1/Hardardottir_2018.pdf https://hdl.handle.net/ Hardardottir, S. , Krock, B. orcid:0000-0003-4022-9101 , Wohlrab, S. orcid:0000-0003-3190-0880 , John, U. orcid:0000-0002-1297-4086 , Nielsen, T. G. and Lundholm, N. (2018) Can domoic acid affect escape response in copepods? , Harmful Algae, 79 , pp. 50-52 . doi:10.1016/j.hal.2018.08.009 <https://doi.org/10.1016/j.hal.2018.08.009> , hdl:10013/epic.f63099e5-bd0a-42a0-b3d9-e45d39fc4b36 |
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Harmful Algae |
container_volume |
79 |
container_start_page |
50 |
op_container_end_page |
52 |
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1766337001041166336 |