Distribution and biodiversity of living benthic foraminifera, including monothalamous taxa, from Tempelfjord, Svalbard
Live foraminiferal assemblages, including soft-walled monothalamous taxa (organic-walled allogromiids, agglutinated saccamminids and psammosphaerids) in addition to hard-shelled polythalamous forms, were analyzed at nine sites (26-104 m water depth) in Tempelfjord on the west coast of Svalbard. Smal...
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ftunivpisairis:oai:arpi.unipi.it:11568/110094 2024-04-21T08:02:38+00:00 Distribution and biodiversity of living benthic foraminifera, including monothalamous taxa, from Tempelfjord, Svalbard SABBATINI A GOODAY AJ NEGRI A. MORIGI, CATERINA Sabbatini, A Gooday, Aj Morigi, Caterina Negri, A. 2007 STAMPA http://hdl.handle.net/11568/110094 https://doi.org/10.2113/gsjfr.37.2.93 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000245700200001 volume:37 issue:2 firstpage:93 lastpage:106 numberofpages:14 journal:JOURNAL OF FORAMINIFERAL RESEARCH http://hdl.handle.net/11568/110094 doi:10.2113/gsjfr.37.2.93 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-34249024531 info:eu-repo/semantics/article 2007 ftunivpisairis https://doi.org/10.2113/gsjfr.37.2.93 2024-03-28T01:24:35Z Live foraminiferal assemblages, including soft-walled monothalamous taxa (organic-walled allogromiids, agglutinated saccamminids and psammosphaerids) in addition to hard-shelled polythalamous forms, were analyzed at nine sites (26-104 m water depth) in Tempelfjord on the west coast of Svalbard. Small volumes of sediments (1 ml) were split into 63-125, 125-300 and >300 pm size fractions and each fraction was sorted for all stained foraminifera. There was a marked contrast in foraminiferal assemblages between the inner and outer parts of the fjord. Monothalamous foraminifera (88-97% of the live assemblage >63 mu m) overwhelmingly dominated samples from the inner stations, located close to the glacier edge and, therefore, influenced by freshwater inputs. Multi-chambered agglutinated and calcareous taxa, on the other hand, were most common (77-82%) at the two outer stations. Many of the monothalamous foraminifera were organic-walled allogromiids. The dominant allogromiid was a tiny (30-60 mu m) undescribed species, often with a distinctive cover of sediment particles, which ensured its retention on the 63-mu m sieve. This species made up 31% of live foraminifera in all samples and 66% at one station near the glacier. Saccamminids and psammosphaerids were also common at some stations. A. total of 63 monothalamous morphospecies was recognized with numbers at each station ranging from 7 (station 0763) to 19 (station 0758). Saccamminids at station 0759 were particularly diverse (12 morphospecies). Forms assigned to the genus Gloiogullmia represented 5-10% of the assemblage along the fjord, while the percentage of the genera Psammosphaga, Tinogullmia, and Micrometula was fairly consistent at all stations. These results provide further evidence of the importance of soft-walled, monothalamous foraminifera in sublittoral, high-latitude and brackish-water settings. Article in Journal/Newspaper glacier Svalbard Tempelfjord* ARPI - Archivio della Ricerca dell'Università di Pisa The Journal of Foraminiferal Research 37 2 93 106 |
institution |
Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
description |
Live foraminiferal assemblages, including soft-walled monothalamous taxa (organic-walled allogromiids, agglutinated saccamminids and psammosphaerids) in addition to hard-shelled polythalamous forms, were analyzed at nine sites (26-104 m water depth) in Tempelfjord on the west coast of Svalbard. Small volumes of sediments (1 ml) were split into 63-125, 125-300 and >300 pm size fractions and each fraction was sorted for all stained foraminifera. There was a marked contrast in foraminiferal assemblages between the inner and outer parts of the fjord. Monothalamous foraminifera (88-97% of the live assemblage >63 mu m) overwhelmingly dominated samples from the inner stations, located close to the glacier edge and, therefore, influenced by freshwater inputs. Multi-chambered agglutinated and calcareous taxa, on the other hand, were most common (77-82%) at the two outer stations. Many of the monothalamous foraminifera were organic-walled allogromiids. The dominant allogromiid was a tiny (30-60 mu m) undescribed species, often with a distinctive cover of sediment particles, which ensured its retention on the 63-mu m sieve. This species made up 31% of live foraminifera in all samples and 66% at one station near the glacier. Saccamminids and psammosphaerids were also common at some stations. A. total of 63 monothalamous morphospecies was recognized with numbers at each station ranging from 7 (station 0763) to 19 (station 0758). Saccamminids at station 0759 were particularly diverse (12 morphospecies). Forms assigned to the genus Gloiogullmia represented 5-10% of the assemblage along the fjord, while the percentage of the genera Psammosphaga, Tinogullmia, and Micrometula was fairly consistent at all stations. These results provide further evidence of the importance of soft-walled, monothalamous foraminifera in sublittoral, high-latitude and brackish-water settings. |
author2 |
Sabbatini, A Gooday, Aj Morigi, Caterina Negri, A. |
format |
Article in Journal/Newspaper |
author |
SABBATINI A GOODAY AJ NEGRI A. MORIGI, CATERINA |
spellingShingle |
SABBATINI A GOODAY AJ NEGRI A. MORIGI, CATERINA Distribution and biodiversity of living benthic foraminifera, including monothalamous taxa, from Tempelfjord, Svalbard |
author_facet |
SABBATINI A GOODAY AJ NEGRI A. MORIGI, CATERINA |
author_sort |
SABBATINI A |
title |
Distribution and biodiversity of living benthic foraminifera, including monothalamous taxa, from Tempelfjord, Svalbard |
title_short |
Distribution and biodiversity of living benthic foraminifera, including monothalamous taxa, from Tempelfjord, Svalbard |
title_full |
Distribution and biodiversity of living benthic foraminifera, including monothalamous taxa, from Tempelfjord, Svalbard |
title_fullStr |
Distribution and biodiversity of living benthic foraminifera, including monothalamous taxa, from Tempelfjord, Svalbard |
title_full_unstemmed |
Distribution and biodiversity of living benthic foraminifera, including monothalamous taxa, from Tempelfjord, Svalbard |
title_sort |
distribution and biodiversity of living benthic foraminifera, including monothalamous taxa, from tempelfjord, svalbard |
publishDate |
2007 |
url |
http://hdl.handle.net/11568/110094 https://doi.org/10.2113/gsjfr.37.2.93 |
genre |
glacier Svalbard Tempelfjord* |
genre_facet |
glacier Svalbard Tempelfjord* |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000245700200001 volume:37 issue:2 firstpage:93 lastpage:106 numberofpages:14 journal:JOURNAL OF FORAMINIFERAL RESEARCH http://hdl.handle.net/11568/110094 doi:10.2113/gsjfr.37.2.93 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-34249024531 |
op_doi |
https://doi.org/10.2113/gsjfr.37.2.93 |
container_title |
The Journal of Foraminiferal Research |
container_volume |
37 |
container_issue |
2 |
container_start_page |
93 |
op_container_end_page |
106 |
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