Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean
To describe the horizontal and vertical distribution of recent planktic foraminifera in Fram Strait (Arctic), plankton samples were collected in the early summer of 2011 using a MultiNet sampler (>63 µm) at 10 stations along a west–east transect at 78°50′N. Five depth intervals were sampled from...
Published in: | Polar Research |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Norwegian Polar Institute
2014
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/24692/ https://oceanrep.geomar.de/id/eprint/24692/1/22483-125461-1-PB.pdf https://oceanrep.geomar.de/id/eprint/24692/2/22483-122446-1-SP.pdf https://doi.org/10.3402/polar.v33.22483 |
id |
ftoceanrep:oai:oceanrep.geomar.de:24692 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:24692 2023-05-15T14:26:20+02:00 Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean Pados, Theodora Spielhagen, Robert F. 2014-05-27 text https://oceanrep.geomar.de/id/eprint/24692/ https://oceanrep.geomar.de/id/eprint/24692/1/22483-125461-1-PB.pdf https://oceanrep.geomar.de/id/eprint/24692/2/22483-122446-1-SP.pdf https://doi.org/10.3402/polar.v33.22483 en eng Norwegian Polar Institute https://oceanrep.geomar.de/id/eprint/24692/1/22483-125461-1-PB.pdf https://oceanrep.geomar.de/id/eprint/24692/2/22483-122446-1-SP.pdf Pados, T. and Spielhagen, R. F. (2014) Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean. Open Access Polar Research, 33 (22483). DOI 10.3402/polar.v33.22483 <https://doi.org/10.3402/polar.v33.22483>. doi:10.3402/polar.v33.22483 cc_by info:eu-repo/semantics/openAccess Article PeerReviewed 2014 ftoceanrep https://doi.org/10.3402/polar.v33.22483 2023-04-07T15:13:27Z To describe the horizontal and vertical distribution of recent planktic foraminifera in Fram Strait (Arctic), plankton samples were collected in the early summer of 2011 using a MultiNet sampler (>63 µm) at 10 stations along a west–east transect at 78°50′N. Five depth intervals were sampled from the sea surface down to 500 m. Additionally, sediment surface samples from the same locations were analysed. The ratio between absolute abundances of planktic foraminifera in the open ocean, at the ice margin and in the ice-covered ocean was found to be approximately 2:4:1. The assemblage was dominated by the polar Neogloboquadrina pachyderma (sin.) and the subpolar Turborotalita quinqueloba, which accounted for 76 and 15% of all tests in the warm, saline Atlantic waters and 90 and 5% in the cold and fresh Polar waters, respectively. Both species had maximum absolute abundances between 0 and 100 m water depth, however, they apparently lived shallower under the ice cover than under ice-free conditions. This indicates that the depth habitat of planktic foraminifera in the study area is predominantly controlled by food availability and not by temperature. The distribution pattern obtained by plankton tows was clearly reflected on the sediment surface and we conclude that the assemblage on the sediment surface can be used as an indicator for modern planktic foraminiferal fauna. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Foraminifera* Fram Strait Neogloboquadrina pachyderma Polar Research OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Arctic Ocean Polar Research 33 1 22483 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
To describe the horizontal and vertical distribution of recent planktic foraminifera in Fram Strait (Arctic), plankton samples were collected in the early summer of 2011 using a MultiNet sampler (>63 µm) at 10 stations along a west–east transect at 78°50′N. Five depth intervals were sampled from the sea surface down to 500 m. Additionally, sediment surface samples from the same locations were analysed. The ratio between absolute abundances of planktic foraminifera in the open ocean, at the ice margin and in the ice-covered ocean was found to be approximately 2:4:1. The assemblage was dominated by the polar Neogloboquadrina pachyderma (sin.) and the subpolar Turborotalita quinqueloba, which accounted for 76 and 15% of all tests in the warm, saline Atlantic waters and 90 and 5% in the cold and fresh Polar waters, respectively. Both species had maximum absolute abundances between 0 and 100 m water depth, however, they apparently lived shallower under the ice cover than under ice-free conditions. This indicates that the depth habitat of planktic foraminifera in the study area is predominantly controlled by food availability and not by temperature. The distribution pattern obtained by plankton tows was clearly reflected on the sediment surface and we conclude that the assemblage on the sediment surface can be used as an indicator for modern planktic foraminiferal fauna. |
format |
Article in Journal/Newspaper |
author |
Pados, Theodora Spielhagen, Robert F. |
spellingShingle |
Pados, Theodora Spielhagen, Robert F. Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean |
author_facet |
Pados, Theodora Spielhagen, Robert F. |
author_sort |
Pados, Theodora |
title |
Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean |
title_short |
Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean |
title_full |
Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean |
title_fullStr |
Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean |
title_full_unstemmed |
Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean |
title_sort |
species distribution and depth habitat of recent planktic foraminifera in fram strait, arctic ocean |
publisher |
Norwegian Polar Institute |
publishDate |
2014 |
url |
https://oceanrep.geomar.de/id/eprint/24692/ https://oceanrep.geomar.de/id/eprint/24692/1/22483-125461-1-PB.pdf https://oceanrep.geomar.de/id/eprint/24692/2/22483-122446-1-SP.pdf https://doi.org/10.3402/polar.v33.22483 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Foraminifera* Fram Strait Neogloboquadrina pachyderma Polar Research |
genre_facet |
Arctic Arctic Arctic Ocean Foraminifera* Fram Strait Neogloboquadrina pachyderma Polar Research |
op_relation |
https://oceanrep.geomar.de/id/eprint/24692/1/22483-125461-1-PB.pdf https://oceanrep.geomar.de/id/eprint/24692/2/22483-122446-1-SP.pdf Pados, T. and Spielhagen, R. F. (2014) Species distribution and depth habitat of recent planktic foraminifera in Fram Strait, Arctic Ocean. Open Access Polar Research, 33 (22483). DOI 10.3402/polar.v33.22483 <https://doi.org/10.3402/polar.v33.22483>. doi:10.3402/polar.v33.22483 |
op_rights |
cc_by info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3402/polar.v33.22483 |
container_title |
Polar Research |
container_volume |
33 |
container_issue |
1 |
container_start_page |
22483 |
_version_ |
1766298841468895232 |