Molluscan assemblages associated with Gigartina beds in the Strait of Magellan and the South Shetland Islands (Antarctica): a comparison of composition and abundance
In this paper we evaluated the composition and abundance of molluscs associated with beds of the red algae Gigartina, located in the South Shetland Islands (Antarctic Peninsula) and the Strait of Magellan (southern Chile). During the summer season of 2013, samples were obtained by scuba diving using...
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Norwegian Polar Institute
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ftjpolarres:oai:journals.openacademia.net:article/2640 2023-05-15T14:01:21+02:00 Molluscan assemblages associated with Gigartina beds in the Strait of Magellan and the South Shetland Islands (Antarctica): a comparison of composition and abundance Rosenfeld, Sebastián Aldea, Cristian Ojeda, Jaime Marambio, Johanna Hüne, Mathias Troncoso, Jesús S. Mansilla, Andrés 2017-07-17 application/pdf application/xml https://polarresearch.net/index.php/polar/article/view/2640 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2640/6036 https://polarresearch.net/index.php/polar/article/view/2640/6037 https://polarresearch.net/index.php/polar/article/view/2640 Polar Research; Vol 36 (2017) 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftjpolarres 2021-11-11T19:13:09Z In this paper we evaluated the composition and abundance of molluscs associated with beds of the red algae Gigartina, located in the South Shetland Islands (Antarctic Peninsula) and the Strait of Magellan (southern Chile). During the summer season of 2013, samples were obtained by scuba diving using a 0.25 m2 quadrat, arranged randomly within the bed. We extracted a total of 15 quadrats per sampling site. For Antarctic Peninsula beds the most abundant species were the bivalve Lissarca miliaris (233 individuals) and the gastropod Laevilacunaria antarctica (94 individuals), while for Strait of Magellan beds the most abundant species was the polyplacophoran Callochiton puniceus (36 individuals). Comparative analysis between the two molluscan assemblages showed significant differences in the faunal composition between the Antarctic Peninsula and Strait of Magellan (f = 64.474; p = 0.0001). Therefore, molluscs reported in both areas are characteristic of their respective biogeographic area. Finally, Gigartina species play an important role in the formation of patterns of abundance and diversity of the communities associated with them. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Polar Research South Shetland Islands Polar Research (E-Journal) Antarctic The Antarctic Antarctic Peninsula South Shetland Islands |
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Open Polar |
collection |
Polar Research (E-Journal) |
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ftjpolarres |
language |
English |
description |
In this paper we evaluated the composition and abundance of molluscs associated with beds of the red algae Gigartina, located in the South Shetland Islands (Antarctic Peninsula) and the Strait of Magellan (southern Chile). During the summer season of 2013, samples were obtained by scuba diving using a 0.25 m2 quadrat, arranged randomly within the bed. We extracted a total of 15 quadrats per sampling site. For Antarctic Peninsula beds the most abundant species were the bivalve Lissarca miliaris (233 individuals) and the gastropod Laevilacunaria antarctica (94 individuals), while for Strait of Magellan beds the most abundant species was the polyplacophoran Callochiton puniceus (36 individuals). Comparative analysis between the two molluscan assemblages showed significant differences in the faunal composition between the Antarctic Peninsula and Strait of Magellan (f = 64.474; p = 0.0001). Therefore, molluscs reported in both areas are characteristic of their respective biogeographic area. Finally, Gigartina species play an important role in the formation of patterns of abundance and diversity of the communities associated with them. |
format |
Article in Journal/Newspaper |
author |
Rosenfeld, Sebastián Aldea, Cristian Ojeda, Jaime Marambio, Johanna Hüne, Mathias Troncoso, Jesús S. Mansilla, Andrés |
spellingShingle |
Rosenfeld, Sebastián Aldea, Cristian Ojeda, Jaime Marambio, Johanna Hüne, Mathias Troncoso, Jesús S. Mansilla, Andrés Molluscan assemblages associated with Gigartina beds in the Strait of Magellan and the South Shetland Islands (Antarctica): a comparison of composition and abundance |
author_facet |
Rosenfeld, Sebastián Aldea, Cristian Ojeda, Jaime Marambio, Johanna Hüne, Mathias Troncoso, Jesús S. Mansilla, Andrés |
author_sort |
Rosenfeld, Sebastián |
title |
Molluscan assemblages associated with Gigartina beds in the Strait of Magellan and the South Shetland Islands (Antarctica): a comparison of composition and abundance |
title_short |
Molluscan assemblages associated with Gigartina beds in the Strait of Magellan and the South Shetland Islands (Antarctica): a comparison of composition and abundance |
title_full |
Molluscan assemblages associated with Gigartina beds in the Strait of Magellan and the South Shetland Islands (Antarctica): a comparison of composition and abundance |
title_fullStr |
Molluscan assemblages associated with Gigartina beds in the Strait of Magellan and the South Shetland Islands (Antarctica): a comparison of composition and abundance |
title_full_unstemmed |
Molluscan assemblages associated with Gigartina beds in the Strait of Magellan and the South Shetland Islands (Antarctica): a comparison of composition and abundance |
title_sort |
molluscan assemblages associated with gigartina beds in the strait of magellan and the south shetland islands (antarctica): a comparison of composition and abundance |
publisher |
Norwegian Polar Institute |
publishDate |
2017 |
url |
https://polarresearch.net/index.php/polar/article/view/2640 |
geographic |
Antarctic The Antarctic Antarctic Peninsula South Shetland Islands |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula South Shetland Islands |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Polar Research South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Polar Research South Shetland Islands |
op_source |
Polar Research; Vol 36 (2017) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2640/6036 https://polarresearch.net/index.php/polar/article/view/2640/6037 https://polarresearch.net/index.php/polar/article/view/2640 |
_version_ |
1766271086877474816 |