Highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic Foraminifera
Diurnal vertical migration (DVM) is a widespread phenomenon in the upper ocean, but it remains unclear to what degree it also involves passively transported micro- and meso-zooplankton. These organisms are difficult to monitor by in situ sensing and observations from discrete samples are often incon...
Published in: | Journal of Plankton Research |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | https://archive-ouverte.unige.ch/unige:115794 |
id |
ftunivgeneve:oai:unige.ch:unige:115794 |
---|---|
record_format |
openpolar |
spelling |
ftunivgeneve:oai:unige.ch:unige:115794 2023-05-15T17:33:47+02:00 Highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic Foraminifera Meilland, Julie Siccha, Michael Weinkauf, Manuel Jonkers, Lukas Morard, Raphaël Baranowski, Ulrike Baumeister, Adrian Bertlich, Jacqueline Brummer, Geert-Jan Debray, Paul Fritz-Endres, Theresa Groeneveld, Jeroen Magerl, Leonard Munz, Philipp Rillo, Marina C. Schmidt, Christiane Takagi, Haruka Theara, Gurjit Kučera, Michal 2019 https://archive-ouverte.unige.ch/unige:115794 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1093/plankt/fbz002 unige:115794 https://archive-ouverte.unige.ch/unige:115794 info:eu-repo/semantics/restrictedAccess ISSN: 0142-7873 Journal of Plankton Research, Vol. 41, No 2 (2019) pp. 127-141 info:eu-repo/classification/ddc/550 Planktonic Foraminifera Patchiness Vertical migration Ecology Text info:eu-repo/semantics/article Article scientifique info:eu-repo/semantics/publishedVersion 2019 ftunivgeneve https://doi.org/10.1093/plankt/fbz002 2022-02-08T22:29:30Z Diurnal vertical migration (DVM) is a widespread phenomenon in the upper ocean, but it remains unclear to what degree it also involves passively transported micro- and meso-zooplankton. These organisms are difficult to monitor by in situ sensing and observations from discrete samples are often inconclusive. Prime examples of such ambiguity are planktonic foraminifera, where contradictory evidence for DVM continues to cast doubt on the stability of species vertical habitats, which introduces uncertainties in geochemical proxy interpretation. To provide a robust answer, we carried out highly replicated randomized sampling with 41 vertically resolved plankton net hauls taken within 26 hours in a confined area of 400 km2 in the tropical North Atlantic, where DVM in larger plankton occurs. Manual enumeration of planktonic foraminifera cell density consistently reveals the highest total cell concentrations in the surface mixed layer (top 50 m) and analysis of cell density in seven individual species representing different shell sizes, life strategies and presumed depth habitats reveals consistent vertical habitats not changing over the 26 hours sampling period. These observations robustly reject the existence of DVM in planktonic foraminifera in a setting where DVM occurs in other organisms. Article in Journal/Newspaper North Atlantic Planktonic foraminifera Université de Genève: Archive ouverte UNIGE Journal of Plankton Research 41 2 127 141 |
institution |
Open Polar |
collection |
Université de Genève: Archive ouverte UNIGE |
op_collection_id |
ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/550 Planktonic Foraminifera Patchiness Vertical migration Ecology |
spellingShingle |
info:eu-repo/classification/ddc/550 Planktonic Foraminifera Patchiness Vertical migration Ecology Meilland, Julie Siccha, Michael Weinkauf, Manuel Jonkers, Lukas Morard, Raphaël Baranowski, Ulrike Baumeister, Adrian Bertlich, Jacqueline Brummer, Geert-Jan Debray, Paul Fritz-Endres, Theresa Groeneveld, Jeroen Magerl, Leonard Munz, Philipp Rillo, Marina C. Schmidt, Christiane Takagi, Haruka Theara, Gurjit Kučera, Michal Highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic Foraminifera |
topic_facet |
info:eu-repo/classification/ddc/550 Planktonic Foraminifera Patchiness Vertical migration Ecology |
description |
Diurnal vertical migration (DVM) is a widespread phenomenon in the upper ocean, but it remains unclear to what degree it also involves passively transported micro- and meso-zooplankton. These organisms are difficult to monitor by in situ sensing and observations from discrete samples are often inconclusive. Prime examples of such ambiguity are planktonic foraminifera, where contradictory evidence for DVM continues to cast doubt on the stability of species vertical habitats, which introduces uncertainties in geochemical proxy interpretation. To provide a robust answer, we carried out highly replicated randomized sampling with 41 vertically resolved plankton net hauls taken within 26 hours in a confined area of 400 km2 in the tropical North Atlantic, where DVM in larger plankton occurs. Manual enumeration of planktonic foraminifera cell density consistently reveals the highest total cell concentrations in the surface mixed layer (top 50 m) and analysis of cell density in seven individual species representing different shell sizes, life strategies and presumed depth habitats reveals consistent vertical habitats not changing over the 26 hours sampling period. These observations robustly reject the existence of DVM in planktonic foraminifera in a setting where DVM occurs in other organisms. |
format |
Article in Journal/Newspaper |
author |
Meilland, Julie Siccha, Michael Weinkauf, Manuel Jonkers, Lukas Morard, Raphaël Baranowski, Ulrike Baumeister, Adrian Bertlich, Jacqueline Brummer, Geert-Jan Debray, Paul Fritz-Endres, Theresa Groeneveld, Jeroen Magerl, Leonard Munz, Philipp Rillo, Marina C. Schmidt, Christiane Takagi, Haruka Theara, Gurjit Kučera, Michal |
author_facet |
Meilland, Julie Siccha, Michael Weinkauf, Manuel Jonkers, Lukas Morard, Raphaël Baranowski, Ulrike Baumeister, Adrian Bertlich, Jacqueline Brummer, Geert-Jan Debray, Paul Fritz-Endres, Theresa Groeneveld, Jeroen Magerl, Leonard Munz, Philipp Rillo, Marina C. Schmidt, Christiane Takagi, Haruka Theara, Gurjit Kučera, Michal |
author_sort |
Meilland, Julie |
title |
Highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic Foraminifera |
title_short |
Highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic Foraminifera |
title_full |
Highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic Foraminifera |
title_fullStr |
Highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic Foraminifera |
title_full_unstemmed |
Highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic Foraminifera |
title_sort |
highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic foraminifera |
publishDate |
2019 |
url |
https://archive-ouverte.unige.ch/unige:115794 |
genre |
North Atlantic Planktonic foraminifera |
genre_facet |
North Atlantic Planktonic foraminifera |
op_source |
ISSN: 0142-7873 Journal of Plankton Research, Vol. 41, No 2 (2019) pp. 127-141 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/plankt/fbz002 unige:115794 https://archive-ouverte.unige.ch/unige:115794 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1093/plankt/fbz002 |
container_title |
Journal of Plankton Research |
container_volume |
41 |
container_issue |
2 |
container_start_page |
127 |
op_container_end_page |
141 |
_version_ |
1766132402849054720 |