Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight
Modern planktonic foraminifera collected with a sediment trap, and subfossil assemblages from surface sediments from the Galway Mound in the Porcupine Seabight off southwestern Ireland, (northeastern Atlantic), were studied in order to investigate recent assemblage variations. The sediment trap oper...
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The Micropaleontology Project., Inc.
2010
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ftoceanrep:oai:oceanrep.geomar.de:10645 2023-05-15T18:00:53+02:00 Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight Harbers, Almuth Schönfeld, Joachim Rüggeberg, Andres Pfannkuche, Olaf 2010 text https://oceanrep.geomar.de/id/eprint/10645/ https://oceanrep.geomar.de/id/eprint/10645/1/Harbers_al_2010.pdf en eng The Micropaleontology Project., Inc. https://oceanrep.geomar.de/id/eprint/10645/1/Harbers_al_2010.pdf Harbers, A., Schönfeld, J., Rüggeberg, A. and Pfannkuche, O. (2010) Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight. Micropaleontology, 56 (3-4). pp. 259-274. info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2010 ftoceanrep 2023-04-07T14:58:48Z Modern planktonic foraminifera collected with a sediment trap, and subfossil assemblages from surface sediments from the Galway Mound in the Porcupine Seabight off southwestern Ireland, (northeastern Atlantic), were studied in order to investigate recent assemblage variations. The sediment trap operated from April to August 2004 with a sampling interval of eight days and covered the spring bloom and early summer. Ten different species were recorded. Globorotalia hirsuta, Turborotalita quinqueloba and Globigerinita glutinata appeared predominately in spring. Neogloboquadrina incompta, Globigerina bulloides and Globorotalia inflata were abundant in spring and summer. Highest foraminiferal tests flux occurred in June. The faunal composition was similar to subfossil assemblages from surface sediments, but the species proportions were different. This contrast was mainly driven by the subtropical species G. hirsuta, which was frequent in 2004 but rare in surface sediment samples and in earlier plankton collections obtained from the southern Porcupine Seabight during the 1990s. The individual weight of deposited foraminifera is mainly influenced by the spring bloom, as indicated by sea-surface chlorophyll-a data. The top three-ranked species, G. hirsuta, N. incompta and G. bulloides, contributed 87 % to the foraminiferal carbonate flux at Galway Mound. Article in Journal/Newspaper Planktonic foraminifera OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Porcupine Seabight ENVELOPE(-13.000,-13.000,50.500,50.500) |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Modern planktonic foraminifera collected with a sediment trap, and subfossil assemblages from surface sediments from the Galway Mound in the Porcupine Seabight off southwestern Ireland, (northeastern Atlantic), were studied in order to investigate recent assemblage variations. The sediment trap operated from April to August 2004 with a sampling interval of eight days and covered the spring bloom and early summer. Ten different species were recorded. Globorotalia hirsuta, Turborotalita quinqueloba and Globigerinita glutinata appeared predominately in spring. Neogloboquadrina incompta, Globigerina bulloides and Globorotalia inflata were abundant in spring and summer. Highest foraminiferal tests flux occurred in June. The faunal composition was similar to subfossil assemblages from surface sediments, but the species proportions were different. This contrast was mainly driven by the subtropical species G. hirsuta, which was frequent in 2004 but rare in surface sediment samples and in earlier plankton collections obtained from the southern Porcupine Seabight during the 1990s. The individual weight of deposited foraminifera is mainly influenced by the spring bloom, as indicated by sea-surface chlorophyll-a data. The top three-ranked species, G. hirsuta, N. incompta and G. bulloides, contributed 87 % to the foraminiferal carbonate flux at Galway Mound. |
format |
Article in Journal/Newspaper |
author |
Harbers, Almuth Schönfeld, Joachim Rüggeberg, Andres Pfannkuche, Olaf |
spellingShingle |
Harbers, Almuth Schönfeld, Joachim Rüggeberg, Andres Pfannkuche, Olaf Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight |
author_facet |
Harbers, Almuth Schönfeld, Joachim Rüggeberg, Andres Pfannkuche, Olaf |
author_sort |
Harbers, Almuth |
title |
Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight |
title_short |
Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight |
title_full |
Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight |
title_fullStr |
Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight |
title_full_unstemmed |
Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight |
title_sort |
short term dynamics of planktonic foraminiferal sedimentation in the porcupine seabight |
publisher |
The Micropaleontology Project., Inc. |
publishDate |
2010 |
url |
https://oceanrep.geomar.de/id/eprint/10645/ https://oceanrep.geomar.de/id/eprint/10645/1/Harbers_al_2010.pdf |
long_lat |
ENVELOPE(-13.000,-13.000,50.500,50.500) |
geographic |
Porcupine Seabight |
geographic_facet |
Porcupine Seabight |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
https://oceanrep.geomar.de/id/eprint/10645/1/Harbers_al_2010.pdf Harbers, A., Schönfeld, J., Rüggeberg, A. and Pfannkuche, O. (2010) Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight. Micropaleontology, 56 (3-4). pp. 259-274. |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766170167771922432 |