A taxonomic and distributional survey of marine benthonic Ostracoda off Kerguelen and Heard Islands, South Indian Ocean
From an examination of 34 grab and dredge samples ranging from 110 m to 3584 m water depth, collected during Eltanin cruise 47 across the Kerguelen Plateau, 26 shallow-water and 35 deep-sea benthonic ostracod species have been identified. Systematic notes and illustrations of the common and some of...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/86806 2024-01-14T10:02:04+01:00 A taxonomic and distributional survey of marine benthonic Ostracoda off Kerguelen and Heard Islands, South Indian Ocean Ayress, Michael A De Deckker, Patrick Coles, Graham P http://hdl.handle.net/1885/86806 https://doi.org/10.1144/jm.23.1.15 https://openresearch-repository.anu.edu.au/bitstream/1885/86806/5/01_Ayress_A_taxonomic_and_distributional_2004.pdf.jpg unknown Geological Society Publishing House 0262-821X http://hdl.handle.net/1885/86806 doi:10.1144/jm.23.1.15 https://openresearch-repository.anu.edu.au/bitstream/1885/86806/5/01_Ayress_A_taxonomic_and_distributional_2004.pdf.jpg Journal of Micropalaeontology Keywords: benthic infauna new species ostracode Indian Ocean Ostracoda Journal article ftanucanberra https://doi.org/10.1144/jm.23.1.15 2023-12-15T09:33:36Z From an examination of 34 grab and dredge samples ranging from 110 m to 3584 m water depth, collected during Eltanin cruise 47 across the Kerguelen Plateau, 26 shallow-water and 35 deep-sea benthonic ostracod species have been identified. Systematic notes and illustrations of the common and some of the rare species are presented. Two new species are described: Philoneptunus cassidyi n. sp. and Taracythere abyssora n. sp. Comparisons made with the Atlantic and SW Pacific Oceans and circum-Antarctic regions indicate that the fauna comprises dominantly cosmopolitan deep-sea species while most of the other species have close affinities with the SW Pacific. In the Kerguelen material, seven distinct depth assemblages appear to correspond well with differing watermasses and there is evidence that the relatively shallow position of Antarctic Intermediate Water permits elevation of the upper depth limits of some deep-sea species. Some species have developed ornament of fine reticulation, features not previously seen in those species outside the Kerguelen region. Article in Journal/Newspaper Antarc* Antarctic Australian National University: ANU Digital Collections Antarctic Kerguelen Pacific Indian Journal of Micropalaeontology 23 1 15 38 |
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Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: benthic infauna new species ostracode Indian Ocean Ostracoda |
spellingShingle |
Keywords: benthic infauna new species ostracode Indian Ocean Ostracoda Ayress, Michael A De Deckker, Patrick Coles, Graham P A taxonomic and distributional survey of marine benthonic Ostracoda off Kerguelen and Heard Islands, South Indian Ocean |
topic_facet |
Keywords: benthic infauna new species ostracode Indian Ocean Ostracoda |
description |
From an examination of 34 grab and dredge samples ranging from 110 m to 3584 m water depth, collected during Eltanin cruise 47 across the Kerguelen Plateau, 26 shallow-water and 35 deep-sea benthonic ostracod species have been identified. Systematic notes and illustrations of the common and some of the rare species are presented. Two new species are described: Philoneptunus cassidyi n. sp. and Taracythere abyssora n. sp. Comparisons made with the Atlantic and SW Pacific Oceans and circum-Antarctic regions indicate that the fauna comprises dominantly cosmopolitan deep-sea species while most of the other species have close affinities with the SW Pacific. In the Kerguelen material, seven distinct depth assemblages appear to correspond well with differing watermasses and there is evidence that the relatively shallow position of Antarctic Intermediate Water permits elevation of the upper depth limits of some deep-sea species. Some species have developed ornament of fine reticulation, features not previously seen in those species outside the Kerguelen region. |
format |
Article in Journal/Newspaper |
author |
Ayress, Michael A De Deckker, Patrick Coles, Graham P |
author_facet |
Ayress, Michael A De Deckker, Patrick Coles, Graham P |
author_sort |
Ayress, Michael A |
title |
A taxonomic and distributional survey of marine benthonic Ostracoda off Kerguelen and Heard Islands, South Indian Ocean |
title_short |
A taxonomic and distributional survey of marine benthonic Ostracoda off Kerguelen and Heard Islands, South Indian Ocean |
title_full |
A taxonomic and distributional survey of marine benthonic Ostracoda off Kerguelen and Heard Islands, South Indian Ocean |
title_fullStr |
A taxonomic and distributional survey of marine benthonic Ostracoda off Kerguelen and Heard Islands, South Indian Ocean |
title_full_unstemmed |
A taxonomic and distributional survey of marine benthonic Ostracoda off Kerguelen and Heard Islands, South Indian Ocean |
title_sort |
taxonomic and distributional survey of marine benthonic ostracoda off kerguelen and heard islands, south indian ocean |
publisher |
Geological Society Publishing House |
url |
http://hdl.handle.net/1885/86806 https://doi.org/10.1144/jm.23.1.15 https://openresearch-repository.anu.edu.au/bitstream/1885/86806/5/01_Ayress_A_taxonomic_and_distributional_2004.pdf.jpg |
geographic |
Antarctic Kerguelen Pacific Indian |
geographic_facet |
Antarctic Kerguelen Pacific Indian |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Journal of Micropalaeontology |
op_relation |
0262-821X http://hdl.handle.net/1885/86806 doi:10.1144/jm.23.1.15 https://openresearch-repository.anu.edu.au/bitstream/1885/86806/5/01_Ayress_A_taxonomic_and_distributional_2004.pdf.jpg |
op_doi |
https://doi.org/10.1144/jm.23.1.15 |
container_title |
Journal of Micropalaeontology |
container_volume |
23 |
container_issue |
1 |
container_start_page |
15 |
op_container_end_page |
38 |
_version_ |
1788056915264143360 |