Phenology of Oithona similis demonstrates that ecological flexibility may be a winning trait in the warming Arctic
Abstract Rapidly warming Arctic is facing significant shifts in the zooplankton size-spectra manifested as increasing numbers of the small-sized copepod Oithona similis. Here we present a unique continuous data set covering 22 months, on its copepodite structure along with environmental drivers in t...
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ftdoajarticles:oai:doaj.org/article:02afd6a8386a496782e91264a480929f 2023-05-15T14:52:32+02:00 Phenology of Oithona similis demonstrates that ecological flexibility may be a winning trait in the warming Arctic Kaja Balazy Rafał Boehnke Emilia Trudnowska Janne E. Søreide Katarzyna Błachowiak-Samołyk 2021-09-01T00:00:00Z https://doi.org/10.1038/s41598-021-98068-8 https://doaj.org/article/02afd6a8386a496782e91264a480929f EN eng Nature Portfolio https://doi.org/10.1038/s41598-021-98068-8 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-98068-8 2045-2322 https://doaj.org/article/02afd6a8386a496782e91264a480929f Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021) Medicine R Science Q article 2021 ftdoajarticles https://doi.org/10.1038/s41598-021-98068-8 2022-12-31T09:20:37Z Abstract Rapidly warming Arctic is facing significant shifts in the zooplankton size-spectra manifested as increasing numbers of the small-sized copepod Oithona similis. Here we present a unique continuous data set covering 22 months, on its copepodite structure along with environmental drivers in the Atlantic-influenced high Arctic fjord Isfjorden (Spitsbergen). Abundance maxima of O. similis were observed in September when the highest seawater temperature was recorded. A high concentration of the indicator species of Atlantification Oithona atlantica was also observed at that time. The clear dominance of O. similis in the zooplankton community during the dark, theoretically unproductive season emphasizes its substantial role in sustaining a continuous carbon flow, when most of the large herbivorous copepods fall into sleeping state. The high sex ratio observed twice in both years during periods of high primary production suggests two main reproductive events per year. O. similis reproduced even in very low temperatures (< 0 °C) previously thought to limit their fecundity, which proves its unique thermal tolerance. Our study provides a new insight on ecology of this key copepod of marine ecosystems across the globe, and thus confirm the Climatic Variability Hypothesis assuming that natural selection favour species with such flexible adaptive traits as O. similis. Article in Journal/Newspaper Arctic Isfjord* Isfjorden Zooplankton Copepods Spitsbergen Directory of Open Access Journals: DOAJ Articles Arctic Scientific Reports 11 1 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Medicine R Science Q |
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Medicine R Science Q Kaja Balazy Rafał Boehnke Emilia Trudnowska Janne E. Søreide Katarzyna Błachowiak-Samołyk Phenology of Oithona similis demonstrates that ecological flexibility may be a winning trait in the warming Arctic |
topic_facet |
Medicine R Science Q |
description |
Abstract Rapidly warming Arctic is facing significant shifts in the zooplankton size-spectra manifested as increasing numbers of the small-sized copepod Oithona similis. Here we present a unique continuous data set covering 22 months, on its copepodite structure along with environmental drivers in the Atlantic-influenced high Arctic fjord Isfjorden (Spitsbergen). Abundance maxima of O. similis were observed in September when the highest seawater temperature was recorded. A high concentration of the indicator species of Atlantification Oithona atlantica was also observed at that time. The clear dominance of O. similis in the zooplankton community during the dark, theoretically unproductive season emphasizes its substantial role in sustaining a continuous carbon flow, when most of the large herbivorous copepods fall into sleeping state. The high sex ratio observed twice in both years during periods of high primary production suggests two main reproductive events per year. O. similis reproduced even in very low temperatures (< 0 °C) previously thought to limit their fecundity, which proves its unique thermal tolerance. Our study provides a new insight on ecology of this key copepod of marine ecosystems across the globe, and thus confirm the Climatic Variability Hypothesis assuming that natural selection favour species with such flexible adaptive traits as O. similis. |
format |
Article in Journal/Newspaper |
author |
Kaja Balazy Rafał Boehnke Emilia Trudnowska Janne E. Søreide Katarzyna Błachowiak-Samołyk |
author_facet |
Kaja Balazy Rafał Boehnke Emilia Trudnowska Janne E. Søreide Katarzyna Błachowiak-Samołyk |
author_sort |
Kaja Balazy |
title |
Phenology of Oithona similis demonstrates that ecological flexibility may be a winning trait in the warming Arctic |
title_short |
Phenology of Oithona similis demonstrates that ecological flexibility may be a winning trait in the warming Arctic |
title_full |
Phenology of Oithona similis demonstrates that ecological flexibility may be a winning trait in the warming Arctic |
title_fullStr |
Phenology of Oithona similis demonstrates that ecological flexibility may be a winning trait in the warming Arctic |
title_full_unstemmed |
Phenology of Oithona similis demonstrates that ecological flexibility may be a winning trait in the warming Arctic |
title_sort |
phenology of oithona similis demonstrates that ecological flexibility may be a winning trait in the warming arctic |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doi.org/10.1038/s41598-021-98068-8 https://doaj.org/article/02afd6a8386a496782e91264a480929f |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Isfjord* Isfjorden Zooplankton Copepods Spitsbergen |
genre_facet |
Arctic Isfjord* Isfjorden Zooplankton Copepods Spitsbergen |
op_source |
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021) |
op_relation |
https://doi.org/10.1038/s41598-021-98068-8 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-98068-8 2045-2322 https://doaj.org/article/02afd6a8386a496782e91264a480929f |
op_doi |
https://doi.org/10.1038/s41598-021-98068-8 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766323764573765632 |