Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns
Copepods of the genera Calanus and Pseudocalanus are important components of Arctic marine ecosystems. Despite the key roles of these zooplankters, little is known about the organisms they interact with most intimately, their parasites and symbionts. We applied metabarcode sequencing to uncover euka...
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Online Access: | https://hdl.handle.net/11250/3027939 https://doi.org/10.1007/s00300-022-03060-1 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3027939 2023-05-15T14:28:51+02:00 Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns Cleary, Alison Clare Callesen, Trine A. Berge, Jørgen Gabrielsen, Tove M. 2022 application/pdf https://hdl.handle.net/11250/3027939 https://doi.org/10.1007/s00300-022-03060-1 eng eng Springer Nature Polar Biology. 2022, 45, 1105-1118. urn:issn:0722-4060 https://hdl.handle.net/11250/3027939 https://doi.org/10.1007/s00300-022-03060-1 cristin:2046972 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 1105-1118 45 Polar Biology Peer reviewed Journal article 2022 ftntnutrondheimi https://doi.org/10.1007/s00300-022-03060-1 2022-10-26T22:41:49Z Copepods of the genera Calanus and Pseudocalanus are important components of Arctic marine ecosystems. Despite the key roles of these zooplankters, little is known about the organisms they interact with most intimately, their parasites and symbionts. We applied metabarcode sequencing to uncover eukaryotic parasites present within these two copepod genera from three areas around the high Arctic archipelago of Svalbard. Ten distinct parasite groups were observed: four different Apostome ciliates, four different dinoflagellates (Chytriodinium sp., Ellobiopsis sp., Thalassomyces sp., and Hematodinium sp.), a Paradinium sp., and a trematode. Apostome ciliates closely related to Pseudocollinia spp. were the most commonly observed parasite, with overall infection rates of 21.5% in Calanus and 12.5% in Pseudocalanus. Infection by these ciliates varied seasonally, with no infections observed in early winter, but infection rates exceeding 75% in spring. Host specificity varied between parasites, with significant differences in infection rate between the two host copepod genera for four parasites (two ciliates, Chytriodinium, and a trematode). The diverse assemblage of parasites observed in these copepods, and the frequency of infection, with over one in five copepod individuals infected, suggest parasites may be playing a greater role in Arctic plankton communities than generally acknowledged. publishedVersion Article in Journal/Newspaper Arctic Archipelago Arctic Polar Biology Svalbard Copepods NTNU Open Archive (Norwegian University of Science and Technology) Arctic Svalbard Polar Biology 45 6 1105 1118 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
Copepods of the genera Calanus and Pseudocalanus are important components of Arctic marine ecosystems. Despite the key roles of these zooplankters, little is known about the organisms they interact with most intimately, their parasites and symbionts. We applied metabarcode sequencing to uncover eukaryotic parasites present within these two copepod genera from three areas around the high Arctic archipelago of Svalbard. Ten distinct parasite groups were observed: four different Apostome ciliates, four different dinoflagellates (Chytriodinium sp., Ellobiopsis sp., Thalassomyces sp., and Hematodinium sp.), a Paradinium sp., and a trematode. Apostome ciliates closely related to Pseudocollinia spp. were the most commonly observed parasite, with overall infection rates of 21.5% in Calanus and 12.5% in Pseudocalanus. Infection by these ciliates varied seasonally, with no infections observed in early winter, but infection rates exceeding 75% in spring. Host specificity varied between parasites, with significant differences in infection rate between the two host copepod genera for four parasites (two ciliates, Chytriodinium, and a trematode). The diverse assemblage of parasites observed in these copepods, and the frequency of infection, with over one in five copepod individuals infected, suggest parasites may be playing a greater role in Arctic plankton communities than generally acknowledged. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Cleary, Alison Clare Callesen, Trine A. Berge, Jørgen Gabrielsen, Tove M. |
spellingShingle |
Cleary, Alison Clare Callesen, Trine A. Berge, Jørgen Gabrielsen, Tove M. Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns |
author_facet |
Cleary, Alison Clare Callesen, Trine A. Berge, Jørgen Gabrielsen, Tove M. |
author_sort |
Cleary, Alison Clare |
title |
Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns |
title_short |
Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns |
title_full |
Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns |
title_fullStr |
Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns |
title_full_unstemmed |
Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns |
title_sort |
parasite–copepod interactions in svalbard: diversity, host specificity, and seasonal patterns |
publisher |
Springer Nature |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3027939 https://doi.org/10.1007/s00300-022-03060-1 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Archipelago Arctic Polar Biology Svalbard Copepods |
genre_facet |
Arctic Archipelago Arctic Polar Biology Svalbard Copepods |
op_source |
1105-1118 45 Polar Biology |
op_relation |
Polar Biology. 2022, 45, 1105-1118. urn:issn:0722-4060 https://hdl.handle.net/11250/3027939 https://doi.org/10.1007/s00300-022-03060-1 cristin:2046972 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00300-022-03060-1 |
container_title |
Polar Biology |
container_volume |
45 |
container_issue |
6 |
container_start_page |
1105 |
op_container_end_page |
1118 |
_version_ |
1766302998736142336 |