Mesozooplankton assemblages in two bays in the Beagle Channel (Argentina) during January, 2001
This paper describes the composition and abundance of mesozooplankton of Bahía Ushuaia and Bahía Golondrina. These small bays are located in the northern Beagle Channel. Sampling was carried out from January 20 to 23, 2001 and samples were collected from the upper layer at nine stations. This study...
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Consejo Superior de Investigaciones Científicas
2005
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ftdoajarticles:oai:doaj.org/article:495ac738073e4b368457a7b93a300a78 2023-05-15T14:05:15+02:00 Mesozooplankton assemblages in two bays in the Beagle Channel (Argentina) during January, 2001 Melisa Daiana Fernández-Severini Monica Susana Hoffmeyer 2005-12-01T00:00:00Z https://doi.org/10.3989/scimar.2005.69s227 https://doaj.org/article/495ac738073e4b368457a7b93a300a78 EN eng Consejo Superior de Investigaciones Científicas http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/309 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.2005.69s227 https://doaj.org/article/495ac738073e4b368457a7b93a300a78 Scientia Marina, Vol 69, Iss S2, Pp 27-37 (2005) mesozooplankton copepods beagle channel assemblage oithona oncaea ctenocalanus antarctic Aquaculture. Fisheries. Angling SH1-691 article 2005 ftdoajarticles https://doi.org/10.3989/scimar.2005.69s227 2022-12-31T08:57:51Z This paper describes the composition and abundance of mesozooplankton of Bahía Ushuaia and Bahía Golondrina. These small bays are located in the northern Beagle Channel. Sampling was carried out from January 20 to 23, 2001 and samples were collected from the upper layer at nine stations. This study is the first research on mesozooplankton in this part of the Beagle Channel. Due to their dominance in the mesozooplankton community, we compared our Copepoda data with those reported by other authors from Antarctic coastal environments. By applying cluster analysis, we found two station groups in both bays: one in slightly polluted zones and the other in undisturbed external zones. Four assemblages in Bahía Ushuaia and two in Bahía Golondrina were determined by using non-metric multidimensional scaling (MDS) and cluster analysis. Mesozooplanktonic assemblages showed a certain resemblance in zones with and without anthropogenic influence. Most of the copepod species in our samples are typical of the sub-Antarctic region. Oithona similis (=O. helgolandica sensu Ramírez, 1966), Oncaea curvata, and Ctenocalanus citer show either similar or higher abundances at Antarctic coastal sites, including the upper layer in oceanic areas, in comparison with sub-Antarctic coastal localities. This suggests that, in agreement with other findings, the Polar Front is probably not a major geographic boundary for the distribution of these species. Article in Journal/Newspaper Antarc* Antarctic Mesozooplankton Copepods Directory of Open Access Journals: DOAJ Articles Antarctic Argentina Golondrina ENVELOPE(-60.800,-60.800,-62.467,-62.467) Ushuaia ENVELOPE(-40.000,-40.000,-82.167,-82.167) Scientia Marina 69 S2 27 37 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
mesozooplankton copepods beagle channel assemblage oithona oncaea ctenocalanus antarctic Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
mesozooplankton copepods beagle channel assemblage oithona oncaea ctenocalanus antarctic Aquaculture. Fisheries. Angling SH1-691 Melisa Daiana Fernández-Severini Monica Susana Hoffmeyer Mesozooplankton assemblages in two bays in the Beagle Channel (Argentina) during January, 2001 |
topic_facet |
mesozooplankton copepods beagle channel assemblage oithona oncaea ctenocalanus antarctic Aquaculture. Fisheries. Angling SH1-691 |
description |
This paper describes the composition and abundance of mesozooplankton of Bahía Ushuaia and Bahía Golondrina. These small bays are located in the northern Beagle Channel. Sampling was carried out from January 20 to 23, 2001 and samples were collected from the upper layer at nine stations. This study is the first research on mesozooplankton in this part of the Beagle Channel. Due to their dominance in the mesozooplankton community, we compared our Copepoda data with those reported by other authors from Antarctic coastal environments. By applying cluster analysis, we found two station groups in both bays: one in slightly polluted zones and the other in undisturbed external zones. Four assemblages in Bahía Ushuaia and two in Bahía Golondrina were determined by using non-metric multidimensional scaling (MDS) and cluster analysis. Mesozooplanktonic assemblages showed a certain resemblance in zones with and without anthropogenic influence. Most of the copepod species in our samples are typical of the sub-Antarctic region. Oithona similis (=O. helgolandica sensu Ramírez, 1966), Oncaea curvata, and Ctenocalanus citer show either similar or higher abundances at Antarctic coastal sites, including the upper layer in oceanic areas, in comparison with sub-Antarctic coastal localities. This suggests that, in agreement with other findings, the Polar Front is probably not a major geographic boundary for the distribution of these species. |
format |
Article in Journal/Newspaper |
author |
Melisa Daiana Fernández-Severini Monica Susana Hoffmeyer |
author_facet |
Melisa Daiana Fernández-Severini Monica Susana Hoffmeyer |
author_sort |
Melisa Daiana Fernández-Severini |
title |
Mesozooplankton assemblages in two bays in the Beagle Channel (Argentina) during January, 2001 |
title_short |
Mesozooplankton assemblages in two bays in the Beagle Channel (Argentina) during January, 2001 |
title_full |
Mesozooplankton assemblages in two bays in the Beagle Channel (Argentina) during January, 2001 |
title_fullStr |
Mesozooplankton assemblages in two bays in the Beagle Channel (Argentina) during January, 2001 |
title_full_unstemmed |
Mesozooplankton assemblages in two bays in the Beagle Channel (Argentina) during January, 2001 |
title_sort |
mesozooplankton assemblages in two bays in the beagle channel (argentina) during january, 2001 |
publisher |
Consejo Superior de Investigaciones Científicas |
publishDate |
2005 |
url |
https://doi.org/10.3989/scimar.2005.69s227 https://doaj.org/article/495ac738073e4b368457a7b93a300a78 |
long_lat |
ENVELOPE(-60.800,-60.800,-62.467,-62.467) ENVELOPE(-40.000,-40.000,-82.167,-82.167) |
geographic |
Antarctic Argentina Golondrina Ushuaia |
geographic_facet |
Antarctic Argentina Golondrina Ushuaia |
genre |
Antarc* Antarctic Mesozooplankton Copepods |
genre_facet |
Antarc* Antarctic Mesozooplankton Copepods |
op_source |
Scientia Marina, Vol 69, Iss S2, Pp 27-37 (2005) |
op_relation |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/309 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.2005.69s227 https://doaj.org/article/495ac738073e4b368457a7b93a300a78 |
op_doi |
https://doi.org/10.3989/scimar.2005.69s227 |
container_title |
Scientia Marina |
container_volume |
69 |
container_issue |
S2 |
container_start_page |
27 |
op_container_end_page |
37 |
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1766276993433731072 |