Variability of Salpa thompsoni population structure in the Drake Passage in summer season 2010
Dynamic climate changes have become noticeable in recent decades, especially in the vulnerable region of the West Antarctic. The relatively simple food web of this area relies on krill – Euphausia superba. Presumably, as a result of climatic fluctuations, a decrease in the number of this crustacean...
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ftdoajarticles:oai:doaj.org/article:f98132667b0a4aecaa18fc12bafc6020 2023-05-15T14:01:09+02:00 Variability of Salpa thompsoni population structure in the Drake Passage in summer season 2010 Słomska Angelika W. Panasiuk-Chodnicka Anna A. Żmijewska Maria I. Mańko Maciej K. 2015-12-01T00:00:00Z https://doi.org/10.1515/popore-2015-0020 https://doaj.org/article/f98132667b0a4aecaa18fc12bafc6020 EN eng Polish Academy of Sciences http://www.degruyter.com/view/j/popore.2015.36.issue-4/popore-2015-0020/popore-2015-0020.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2015-0020 https://doaj.org/article/f98132667b0a4aecaa18fc12bafc6020 Polish Polar Research, Vol 36, Iss 4, Pp 391-404 (2015) Antarctic planktonic tunicate horizontal distribution population structure climate change Geology QE1-996.5 article 2015 ftdoajarticles https://doi.org/10.1515/popore-2015-0020 2022-12-31T00:49:56Z Dynamic climate changes have become noticeable in recent decades, especially in the vulnerable region of the West Antarctic. The relatively simple food web of this area relies on krill – Euphausia superba. Presumably, as a result of climatic fluctuations, a decrease in the number of this crustacean has been recorded, followed by an increase in the population of the gelatinous zooplankter Salpa thompsoni. In the research presented herein, population and morphometric analyses of Salpa thompsoni have been conducted. Specimens for this research were collected from the Drake Passage, using a Bongo net in the summer season of 2010. It has been found that the horizontal distribution of this gelatinous zooplankter was significantly irregular (Kruskal-Wallis test, p < 0.001). In the northern part of the investigated area, both blastozooids and oozooids were recorded, which confirms the dynamic development of this species. The central part of the Drake Passage was characterized by the dominance of blastozooids, with embryos found at different stages of the development. Only in the region of the South Shetland Islands, the salpid population was characterized by reduced or even stopped reproduction. The immense reproductive efficiency observed in the Salpa thompsoni population was mostly induced by the favourable thermal conditions. These observations may suggest that the ongoing climat changes in the West Antarctic will promote the population expansion of this species. Article in Journal/Newspaper Antarc* Antarctic Drake Passage Euphausia superba Polar Research South Shetland Islands Directory of Open Access Journals: DOAJ Articles Antarctic Drake Passage South Shetland Islands Polish Polar Research 36 4 391 404 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic planktonic tunicate horizontal distribution population structure climate change Geology QE1-996.5 |
spellingShingle |
Antarctic planktonic tunicate horizontal distribution population structure climate change Geology QE1-996.5 Słomska Angelika W. Panasiuk-Chodnicka Anna A. Żmijewska Maria I. Mańko Maciej K. Variability of Salpa thompsoni population structure in the Drake Passage in summer season 2010 |
topic_facet |
Antarctic planktonic tunicate horizontal distribution population structure climate change Geology QE1-996.5 |
description |
Dynamic climate changes have become noticeable in recent decades, especially in the vulnerable region of the West Antarctic. The relatively simple food web of this area relies on krill – Euphausia superba. Presumably, as a result of climatic fluctuations, a decrease in the number of this crustacean has been recorded, followed by an increase in the population of the gelatinous zooplankter Salpa thompsoni. In the research presented herein, population and morphometric analyses of Salpa thompsoni have been conducted. Specimens for this research were collected from the Drake Passage, using a Bongo net in the summer season of 2010. It has been found that the horizontal distribution of this gelatinous zooplankter was significantly irregular (Kruskal-Wallis test, p < 0.001). In the northern part of the investigated area, both blastozooids and oozooids were recorded, which confirms the dynamic development of this species. The central part of the Drake Passage was characterized by the dominance of blastozooids, with embryos found at different stages of the development. Only in the region of the South Shetland Islands, the salpid population was characterized by reduced or even stopped reproduction. The immense reproductive efficiency observed in the Salpa thompsoni population was mostly induced by the favourable thermal conditions. These observations may suggest that the ongoing climat changes in the West Antarctic will promote the population expansion of this species. |
format |
Article in Journal/Newspaper |
author |
Słomska Angelika W. Panasiuk-Chodnicka Anna A. Żmijewska Maria I. Mańko Maciej K. |
author_facet |
Słomska Angelika W. Panasiuk-Chodnicka Anna A. Żmijewska Maria I. Mańko Maciej K. |
author_sort |
Słomska Angelika W. |
title |
Variability of Salpa thompsoni population structure in the Drake Passage in summer season 2010 |
title_short |
Variability of Salpa thompsoni population structure in the Drake Passage in summer season 2010 |
title_full |
Variability of Salpa thompsoni population structure in the Drake Passage in summer season 2010 |
title_fullStr |
Variability of Salpa thompsoni population structure in the Drake Passage in summer season 2010 |
title_full_unstemmed |
Variability of Salpa thompsoni population structure in the Drake Passage in summer season 2010 |
title_sort |
variability of salpa thompsoni population structure in the drake passage in summer season 2010 |
publisher |
Polish Academy of Sciences |
publishDate |
2015 |
url |
https://doi.org/10.1515/popore-2015-0020 https://doaj.org/article/f98132667b0a4aecaa18fc12bafc6020 |
geographic |
Antarctic Drake Passage South Shetland Islands |
geographic_facet |
Antarctic Drake Passage South Shetland Islands |
genre |
Antarc* Antarctic Drake Passage Euphausia superba Polar Research South Shetland Islands |
genre_facet |
Antarc* Antarctic Drake Passage Euphausia superba Polar Research South Shetland Islands |
op_source |
Polish Polar Research, Vol 36, Iss 4, Pp 391-404 (2015) |
op_relation |
http://www.degruyter.com/view/j/popore.2015.36.issue-4/popore-2015-0020/popore-2015-0020.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2015-0020 https://doaj.org/article/f98132667b0a4aecaa18fc12bafc6020 |
op_doi |
https://doi.org/10.1515/popore-2015-0020 |
container_title |
Polish Polar Research |
container_volume |
36 |
container_issue |
4 |
container_start_page |
391 |
op_container_end_page |
404 |
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1766270758476054528 |