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...
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2018
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Online Access: | https://orbit.dtu.dk/en/publications/8572447d-4f7c-49ff-944b-aa50919e81a2 https://doi.org/10.1016/j.hal.2018.08.009 |
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ftdtupubl:oai:pure.atira.dk:publications/8572447d-4f7c-49ff-944b-aa50919e81a2 2024-06-09T07:44:11+00:00 Can domoic acid affect escape response in copepods? Harðardóttir, Sara Krock, Bernd Wohlrab, Sylke John, Uwe Nielsen, Torkel Gissel Lundholm, Nina 2018 https://orbit.dtu.dk/en/publications/8572447d-4f7c-49ff-944b-aa50919e81a2 https://doi.org/10.1016/j.hal.2018.08.009 eng eng https://orbit.dtu.dk/en/publications/8572447d-4f7c-49ff-944b-aa50919e81a2 info:eu-repo/semantics/closedAccess Harðardóttir , S , Krock , B , Wohlrab , S , John , U , Nielsen , T G & Lundholm , N 2018 , ' Can domoic acid affect escape response in copepods? ' , Harmful Algae , vol. 79 , pp. 50-52 . https://doi.org/10.1016/j.hal.2018.08.009 Pseudo-nitzschia Domoic acid Calanus Escape jumps /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2018 ftdtupubl https://doi.org/10.1016/j.hal.2018.08.009 2024-05-15T00:07:08Z 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 Technical University of Denmark: DTU Orbit Arctic Harmful Algae 79 50 52 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Pseudo-nitzschia Domoic acid Calanus Escape jumps /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Pseudo-nitzschia Domoic acid Calanus Escape jumps /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Harðardóttir, Sara Krock, Bernd Wohlrab, Sylke John, Uwe Nielsen, Torkel Gissel Lundholm, Nina Can domoic acid affect escape response in copepods? |
topic_facet |
Pseudo-nitzschia Domoic acid Calanus Escape jumps /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
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 |
Harðardóttir, Sara Krock, Bernd Wohlrab, Sylke John, Uwe Nielsen, Torkel Gissel Lundholm, Nina |
author_facet |
Harðardóttir, Sara Krock, Bernd Wohlrab, Sylke John, Uwe Nielsen, Torkel Gissel Lundholm, Nina |
author_sort |
Harðardóttir, 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? |
publishDate |
2018 |
url |
https://orbit.dtu.dk/en/publications/8572447d-4f7c-49ff-944b-aa50919e81a2 https://doi.org/10.1016/j.hal.2018.08.009 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Calanus hyperboreus Phytoplankton Copepods |
genre_facet |
Arctic Calanus hyperboreus Phytoplankton Copepods |
op_source |
Harðardóttir , S , Krock , B , Wohlrab , S , John , U , Nielsen , T G & Lundholm , N 2018 , ' Can domoic acid affect escape response in copepods? ' , Harmful Algae , vol. 79 , pp. 50-52 . https://doi.org/10.1016/j.hal.2018.08.009 |
op_relation |
https://orbit.dtu.dk/en/publications/8572447d-4f7c-49ff-944b-aa50919e81a2 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.hal.2018.08.009 |
container_title |
Harmful Algae |
container_volume |
79 |
container_start_page |
50 |
op_container_end_page |
52 |
_version_ |
1801372978593660928 |