Modern benthic ostracodes from Lützow-Holm Bay, East Antarctica: Paleoceanographic, paleobiogeographic, and evolutionary significance
Seventy-three ostracode species from 38 genera were recovered from the 55 surface sediment samples in Lützow-Holm Bay, northeastern Antarctica. We investigated bathymetric and geographic distributions of modern benthic ostracode species in the bay and compared this fauna with published modern and fo...
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American Museum of Natural History
2007
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ftunivhongkonghu:oai:hub.hku.hk:10722/132793 2023-05-15T13:52:18+02:00 Modern benthic ostracodes from Lützow-Holm Bay, East Antarctica: Paleoceanographic, paleobiogeographic, and evolutionary significance Seto, K Yasuhara, M Ikeya, N Kato, M 2007 http://hdl.handle.net/10722/132793 eng eng American Museum of Natural History United States Micropaleontology http://www.scopus.com/mlt/select.url?eid=2-s2.0-42649101705&selection=ref&src=s&origin=recordpage Micropaleontology, 2007, v. 53 n. 6, p. 469-496 496 0026-2803 6 eid_2-s2.0-42649101705 469 http://hdl.handle.net/10722/132793 53 Article 2007 ftunivhongkonghu 2023-01-14T15:36:33Z Seventy-three ostracode species from 38 genera were recovered from the 55 surface sediment samples in Lützow-Holm Bay, northeastern Antarctica. We investigated bathymetric and geographic distributions of modern benthic ostracode species in the bay and compared this fauna with published modern and fossil ostracode data of Antarctic and southern South American regions. The results show: (1) Four biotopes and three sub-biotopes are recognized based on Q-mode cluster analysis, which suggest distributions of modern ostracodes are mainly controlled by water-mass structure, ice scouring, and light availability. (2) Comparison between the Lützow-Holm Bay fauna and other ostracode faunas from Antarctica and southern South America shows high endemism and homogeneity of Antarctic ostracode fauna, suggesting in situ evolution of most extant Antarctic species. (3) Most species are endemic to the Antarctica, a few species also inhabit South American waters. link_to_subscribed_fulltext Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica University of Hong Kong: HKU Scholars Hub Antarctic East Antarctica Lützow-Holm Bay ENVELOPE(38.000,38.000,-69.500,-69.500) |
institution |
Open Polar |
collection |
University of Hong Kong: HKU Scholars Hub |
op_collection_id |
ftunivhongkonghu |
language |
English |
description |
Seventy-three ostracode species from 38 genera were recovered from the 55 surface sediment samples in Lützow-Holm Bay, northeastern Antarctica. We investigated bathymetric and geographic distributions of modern benthic ostracode species in the bay and compared this fauna with published modern and fossil ostracode data of Antarctic and southern South American regions. The results show: (1) Four biotopes and three sub-biotopes are recognized based on Q-mode cluster analysis, which suggest distributions of modern ostracodes are mainly controlled by water-mass structure, ice scouring, and light availability. (2) Comparison between the Lützow-Holm Bay fauna and other ostracode faunas from Antarctica and southern South America shows high endemism and homogeneity of Antarctic ostracode fauna, suggesting in situ evolution of most extant Antarctic species. (3) Most species are endemic to the Antarctica, a few species also inhabit South American waters. link_to_subscribed_fulltext |
format |
Article in Journal/Newspaper |
author |
Seto, K Yasuhara, M Ikeya, N Kato, M |
spellingShingle |
Seto, K Yasuhara, M Ikeya, N Kato, M Modern benthic ostracodes from Lützow-Holm Bay, East Antarctica: Paleoceanographic, paleobiogeographic, and evolutionary significance |
author_facet |
Seto, K Yasuhara, M Ikeya, N Kato, M |
author_sort |
Seto, K |
title |
Modern benthic ostracodes from Lützow-Holm Bay, East Antarctica: Paleoceanographic, paleobiogeographic, and evolutionary significance |
title_short |
Modern benthic ostracodes from Lützow-Holm Bay, East Antarctica: Paleoceanographic, paleobiogeographic, and evolutionary significance |
title_full |
Modern benthic ostracodes from Lützow-Holm Bay, East Antarctica: Paleoceanographic, paleobiogeographic, and evolutionary significance |
title_fullStr |
Modern benthic ostracodes from Lützow-Holm Bay, East Antarctica: Paleoceanographic, paleobiogeographic, and evolutionary significance |
title_full_unstemmed |
Modern benthic ostracodes from Lützow-Holm Bay, East Antarctica: Paleoceanographic, paleobiogeographic, and evolutionary significance |
title_sort |
modern benthic ostracodes from lützow-holm bay, east antarctica: paleoceanographic, paleobiogeographic, and evolutionary significance |
publisher |
American Museum of Natural History |
publishDate |
2007 |
url |
http://hdl.handle.net/10722/132793 |
long_lat |
ENVELOPE(38.000,38.000,-69.500,-69.500) |
geographic |
Antarctic East Antarctica Lützow-Holm Bay |
geographic_facet |
Antarctic East Antarctica Lützow-Holm Bay |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_relation |
Micropaleontology http://www.scopus.com/mlt/select.url?eid=2-s2.0-42649101705&selection=ref&src=s&origin=recordpage Micropaleontology, 2007, v. 53 n. 6, p. 469-496 496 0026-2803 6 eid_2-s2.0-42649101705 469 http://hdl.handle.net/10722/132793 53 |
_version_ |
1766256583019331584 |