Zooplankton seasonality at high latitudes: From community to behaviour
This thesis describes the seasonality of the mesozooplankton community in Ramfjord, a shallow high-latitude fjord, in terms of diversity and behavior, using a combination of new and traditional methods. The approach aimed to gain insight into how environmental drivers such as photoperiod and food av...
Published in: | Marine Ecology Progress Series |
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Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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UiT The Arctic University of Norway
2023
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Online Access: | https://hdl.handle.net/10037/29083 |
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ftunivtroemsoe:oai:munin.uit.no:10037/29083 2023-06-11T04:07:29+02:00 Zooplankton seasonality at high latitudes: From community to behaviour Coguiec, Estelle 2023-05-16 https://hdl.handle.net/10037/29083 eng eng UiT The Arctic University of Norway UiT Norges arktiske universitet Paper I: Coguiec, E., Daase, M., Ershova, E.A., Vonnahme, T.R., Wangensteen, O.S., Gradinger, R., … Jørgen, B. (2021). Seasonal variability in the zooplankton community structure in a sub-Arctic fjord as revealed by morphological and molecular approaches. Frontiers in Marine Science, 8 , 705042. Also available in Munin at https://hdl.handle.net/10037/22098 . Paper II: Coguiec, E., Last, S.K., Cohen, H.J., Hobbs, L., Choquet, M., Ershova, E., . Daase, M. Photoperiodism and overwintering in boreal and sub-Arctic Calanus finmarchicus populations. (Manuscript in revision). To be published in <Marine Ecology Progress Series , available at https://doi.org/10.3354/meps14307 . Paper III: Coguiec, E., Last, K.S., Vogedes, D., Berge, J., Daase, M., & Hobbs, L. Calanus spp. swimming behaviour under laboratory conditions as a proxy for diel vertical migration in the wild. (Manuscript). Occurrence dataset: Coguiec, E., Daase, M. & Ershova, E. (2021). Mesozooplankton Ramfjord. UiT The Arctic University of Norway. Sampling event dataset https://doi.org/10.15468/hk7fy9 accessed via GBIF.org on 2023-04-26. Sequence dataset: UiT The Arctic University of Norway (2021). Seasonal variability in the zooplankton community structure in a sub-Arctic fjord revealed by morphological and molecular approaches. Bioproject ID: PRJNA742507. 883, available at NCBI National Library of Medicine, https://www.ncbi.nlm.nih.gov/bioproject/742507 . 978-82-8266-243-7 https://hdl.handle.net/10037/29083 openAccess Copyright 2023 The Author(s) marine biology ecology DOKTOR-002 Doctoral thesis Doktorgradsavhandling 2023 ftunivtroemsoe https://doi.org/10.3354/meps14307 2023-05-03T23:05:53Z This thesis describes the seasonality of the mesozooplankton community in Ramfjord, a shallow high-latitude fjord, in terms of diversity and behavior, using a combination of new and traditional methods. The approach aimed to gain insight into how environmental drivers such as photoperiod and food availability shape seasonal changes in mesozooplankton community structure and Calanus spp. behavior. Seasonal changes in diel vertical migration (DVM) were closely linked to the seasonal changes in day length. Monthly sampling over an entire annual cycle revealed that Ramfjord has particular characteristics such as the dominance of small copepods year-round in terms of abundance and biomass and a population of Calanus finmarchicus that enters a winter resting state rather than a diapause stage. This investigation also used metabarcoding as a quantitative tool for the first time, demonstrating the usefulness of this method in establishing the mesozooplankton community structure. Monthly monitoring of Calanus spp. swimming activity with the locomotor activity method confirmed the efficiency of this method in detecting overwintering in the Calanus population and determined that swimming activity can be used as a proxy for DVM behavior. This thesis demonstrates that the combination of newly developed methods (locomotor activity monitor and metabarcoding as a quantitative tool) with more traditional methods, such as visual identification and active acoustics, can provide new understanding of seasonal changes in the mesozooplankton community structure and behavior. Doctoral or Postdoctoral Thesis Arctic Calanus finmarchicus Copepods University of Tromsø: Munin Open Research Archive Ramfjord ENVELOPE(11.589,11.589,64.910,64.910) Marine Ecology Progress Series |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
marine biology ecology DOKTOR-002 |
spellingShingle |
marine biology ecology DOKTOR-002 Coguiec, Estelle Zooplankton seasonality at high latitudes: From community to behaviour |
topic_facet |
marine biology ecology DOKTOR-002 |
description |
This thesis describes the seasonality of the mesozooplankton community in Ramfjord, a shallow high-latitude fjord, in terms of diversity and behavior, using a combination of new and traditional methods. The approach aimed to gain insight into how environmental drivers such as photoperiod and food availability shape seasonal changes in mesozooplankton community structure and Calanus spp. behavior. Seasonal changes in diel vertical migration (DVM) were closely linked to the seasonal changes in day length. Monthly sampling over an entire annual cycle revealed that Ramfjord has particular characteristics such as the dominance of small copepods year-round in terms of abundance and biomass and a population of Calanus finmarchicus that enters a winter resting state rather than a diapause stage. This investigation also used metabarcoding as a quantitative tool for the first time, demonstrating the usefulness of this method in establishing the mesozooplankton community structure. Monthly monitoring of Calanus spp. swimming activity with the locomotor activity method confirmed the efficiency of this method in detecting overwintering in the Calanus population and determined that swimming activity can be used as a proxy for DVM behavior. This thesis demonstrates that the combination of newly developed methods (locomotor activity monitor and metabarcoding as a quantitative tool) with more traditional methods, such as visual identification and active acoustics, can provide new understanding of seasonal changes in the mesozooplankton community structure and behavior. |
format |
Doctoral or Postdoctoral Thesis |
author |
Coguiec, Estelle |
author_facet |
Coguiec, Estelle |
author_sort |
Coguiec, Estelle |
title |
Zooplankton seasonality at high latitudes: From community to behaviour |
title_short |
Zooplankton seasonality at high latitudes: From community to behaviour |
title_full |
Zooplankton seasonality at high latitudes: From community to behaviour |
title_fullStr |
Zooplankton seasonality at high latitudes: From community to behaviour |
title_full_unstemmed |
Zooplankton seasonality at high latitudes: From community to behaviour |
title_sort |
zooplankton seasonality at high latitudes: from community to behaviour |
publisher |
UiT The Arctic University of Norway |
publishDate |
2023 |
url |
https://hdl.handle.net/10037/29083 |
long_lat |
ENVELOPE(11.589,11.589,64.910,64.910) |
geographic |
Ramfjord |
geographic_facet |
Ramfjord |
genre |
Arctic Calanus finmarchicus Copepods |
genre_facet |
Arctic Calanus finmarchicus Copepods |
op_relation |
Paper I: Coguiec, E., Daase, M., Ershova, E.A., Vonnahme, T.R., Wangensteen, O.S., Gradinger, R., … Jørgen, B. (2021). Seasonal variability in the zooplankton community structure in a sub-Arctic fjord as revealed by morphological and molecular approaches. Frontiers in Marine Science, 8 , 705042. Also available in Munin at https://hdl.handle.net/10037/22098 . Paper II: Coguiec, E., Last, S.K., Cohen, H.J., Hobbs, L., Choquet, M., Ershova, E., . Daase, M. Photoperiodism and overwintering in boreal and sub-Arctic Calanus finmarchicus populations. (Manuscript in revision). To be published in <Marine Ecology Progress Series , available at https://doi.org/10.3354/meps14307 . Paper III: Coguiec, E., Last, K.S., Vogedes, D., Berge, J., Daase, M., & Hobbs, L. Calanus spp. swimming behaviour under laboratory conditions as a proxy for diel vertical migration in the wild. (Manuscript). Occurrence dataset: Coguiec, E., Daase, M. & Ershova, E. (2021). Mesozooplankton Ramfjord. UiT The Arctic University of Norway. Sampling event dataset https://doi.org/10.15468/hk7fy9 accessed via GBIF.org on 2023-04-26. Sequence dataset: UiT The Arctic University of Norway (2021). Seasonal variability in the zooplankton community structure in a sub-Arctic fjord revealed by morphological and molecular approaches. Bioproject ID: PRJNA742507. 883, available at NCBI National Library of Medicine, https://www.ncbi.nlm.nih.gov/bioproject/742507 . 978-82-8266-243-7 https://hdl.handle.net/10037/29083 |
op_rights |
openAccess Copyright 2023 The Author(s) |
op_doi |
https://doi.org/10.3354/meps14307 |
container_title |
Marine Ecology Progress Series |
_version_ |
1768380646689865728 |