Species composition, seasonal abundance and population structure of chaetognaths in Admiralty Bay (Antarctic)
Although chaetognaths inhabiting polar ecosystems are relatively well known, there are few reports on their functioning in the Antarctic coastal plankton community. The presented results provide the first comprehensive description of population structure of chaetognaths in the neritic zone west of t...
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ftdoajarticles:oai:doaj.org/article:5c4d21362ec94e2ba31c7e9e18eb66e8 2023-05-15T13:57:16+02:00 Species composition, seasonal abundance and population structure of chaetognaths in Admiralty Bay (Antarctic) Bielecka Luiza Jerzak Bartłomiej Złoch Ilona 2016-06-01T00:00:00Z https://doi.org/10.1515/popore-2016-0017 https://doaj.org/article/5c4d21362ec94e2ba31c7e9e18eb66e8 EN eng Polish Academy of Sciences http://www.degruyter.com/view/j/popore.2016.37.issue-2/popore-2016-0017/popore-2016-0017.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2016-0017 https://doaj.org/article/5c4d21362ec94e2ba31c7e9e18eb66e8 Polish Polar Research, Vol 37, Iss 2, Pp 303-324 (2016) Antarctic Chaetognatha taxa composition population structure body size Geology QE1-996.5 article 2016 ftdoajarticles https://doi.org/10.1515/popore-2016-0017 2022-12-31T11:25:38Z Although chaetognaths inhabiting polar ecosystems are relatively well known, there are few reports on their functioning in the Antarctic coastal plankton community. The presented results provide the first comprehensive description of population structure of chaetognaths in the neritic zone west of the Antarctic Peninsula. The studies were performed on samples collected in Admiralty Bay, from December 1994 to June 1995. Following six chaetognath species were determined: Eukrohnia hamata, E. bathypelagica, E. fowleri, Pseudosagitta gazellae, P. maxima and Solidosagitta marri. The representatives of Eukrohnia were observed almost throughout the research period, whereas those of Pseudosagitta and Solidosagitta were found only during first four months of our investigation. Eukrohnia hamata showed a strong dominance in respect to abundance (max. 445 ind./1000 m3). The mean abundance of all taxa significantly fluctuated in the study period and across weeks. Generally, all species were represented by the first three maturity stages (I-III), individuals stage IV occurred sporadically, and mature specimens (stage V) were not recorded at all. Morphometric analysis of the most abundant species showed distinct differences in their total length and body proportions. Our findings may suggest that chaetognath populations in Admiralty Bay are migrant, dependent on the inflow of water from the Bransfield Strait, but to prove this statement further, round year study is necessary. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Bransfield Strait Polar Research Directory of Open Access Journals: DOAJ Articles Admiralty Bay Antarctic Antarctic Peninsula Bransfield Strait The Antarctic Polish Polar Research 37 2 303 324 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic Chaetognatha taxa composition population structure body size Geology QE1-996.5 |
spellingShingle |
Antarctic Chaetognatha taxa composition population structure body size Geology QE1-996.5 Bielecka Luiza Jerzak Bartłomiej Złoch Ilona Species composition, seasonal abundance and population structure of chaetognaths in Admiralty Bay (Antarctic) |
topic_facet |
Antarctic Chaetognatha taxa composition population structure body size Geology QE1-996.5 |
description |
Although chaetognaths inhabiting polar ecosystems are relatively well known, there are few reports on their functioning in the Antarctic coastal plankton community. The presented results provide the first comprehensive description of population structure of chaetognaths in the neritic zone west of the Antarctic Peninsula. The studies were performed on samples collected in Admiralty Bay, from December 1994 to June 1995. Following six chaetognath species were determined: Eukrohnia hamata, E. bathypelagica, E. fowleri, Pseudosagitta gazellae, P. maxima and Solidosagitta marri. The representatives of Eukrohnia were observed almost throughout the research period, whereas those of Pseudosagitta and Solidosagitta were found only during first four months of our investigation. Eukrohnia hamata showed a strong dominance in respect to abundance (max. 445 ind./1000 m3). The mean abundance of all taxa significantly fluctuated in the study period and across weeks. Generally, all species were represented by the first three maturity stages (I-III), individuals stage IV occurred sporadically, and mature specimens (stage V) were not recorded at all. Morphometric analysis of the most abundant species showed distinct differences in their total length and body proportions. Our findings may suggest that chaetognath populations in Admiralty Bay are migrant, dependent on the inflow of water from the Bransfield Strait, but to prove this statement further, round year study is necessary. |
format |
Article in Journal/Newspaper |
author |
Bielecka Luiza Jerzak Bartłomiej Złoch Ilona |
author_facet |
Bielecka Luiza Jerzak Bartłomiej Złoch Ilona |
author_sort |
Bielecka Luiza |
title |
Species composition, seasonal abundance and population structure of chaetognaths in Admiralty Bay (Antarctic) |
title_short |
Species composition, seasonal abundance and population structure of chaetognaths in Admiralty Bay (Antarctic) |
title_full |
Species composition, seasonal abundance and population structure of chaetognaths in Admiralty Bay (Antarctic) |
title_fullStr |
Species composition, seasonal abundance and population structure of chaetognaths in Admiralty Bay (Antarctic) |
title_full_unstemmed |
Species composition, seasonal abundance and population structure of chaetognaths in Admiralty Bay (Antarctic) |
title_sort |
species composition, seasonal abundance and population structure of chaetognaths in admiralty bay (antarctic) |
publisher |
Polish Academy of Sciences |
publishDate |
2016 |
url |
https://doi.org/10.1515/popore-2016-0017 https://doaj.org/article/5c4d21362ec94e2ba31c7e9e18eb66e8 |
geographic |
Admiralty Bay Antarctic Antarctic Peninsula Bransfield Strait The Antarctic |
geographic_facet |
Admiralty Bay Antarctic Antarctic Peninsula Bransfield Strait The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Bransfield Strait Polar Research |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Bransfield Strait Polar Research |
op_source |
Polish Polar Research, Vol 37, Iss 2, Pp 303-324 (2016) |
op_relation |
http://www.degruyter.com/view/j/popore.2016.37.issue-2/popore-2016-0017/popore-2016-0017.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2016-0017 https://doaj.org/article/5c4d21362ec94e2ba31c7e9e18eb66e8 |
op_doi |
https://doi.org/10.1515/popore-2016-0017 |
container_title |
Polish Polar Research |
container_volume |
37 |
container_issue |
2 |
container_start_page |
303 |
op_container_end_page |
324 |
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1766264849069768704 |