Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean
It has long been assumed that the population dynamics of planktonic foraminifera is characterised by synchronous reproduction associated with ontogenetic vertical migration. However, due to contradictory observations, this concept became controversial, and subsequent studies provided evidence both i...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2021
|
Subjects: | |
Online Access: | https://doi.org/10.5194/bg-18-5789-2021 https://noa.gwlb.de/receive/cop_mods_00058565 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058196/bg-18-5789-2021.pdf https://bg.copernicus.org/articles/18/5789/2021/bg-18-5789-2021.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00058565 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00058565 2024-09-15T18:30:50+00:00 Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean Meilland, Julie Siccha, Michael Kaffenberger, Maike Bijma, Jelle Kucera, Michal 2021-10 electronic https://doi.org/10.5194/bg-18-5789-2021 https://noa.gwlb.de/receive/cop_mods_00058565 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058196/bg-18-5789-2021.pdf https://bg.copernicus.org/articles/18/5789/2021/bg-18-5789-2021.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-18-5789-2021 https://noa.gwlb.de/receive/cop_mods_00058565 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058196/bg-18-5789-2021.pdf https://bg.copernicus.org/articles/18/5789/2021/bg-18-5789-2021.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2021 ftnonlinearchiv https://doi.org/10.5194/bg-18-5789-2021 2024-06-26T04:36:34Z It has long been assumed that the population dynamics of planktonic foraminifera is characterised by synchronous reproduction associated with ontogenetic vertical migration. However, due to contradictory observations, this concept became controversial, and subsequent studies provided evidence both in favour and against these phenomena. Here we present new observations from replicated vertically resolved profiles of abundance and shell size variation in four species of planktonic foraminifera from the tropical Atlantic to test for the presence, pattern, and extent of synchronised reproduction and ontogenetic vertical migration in this oceanic region. Specimens of Globigerinita glutinata, Globigerinoides ruber ruber, Globorotalia menardii and Orbulina universa were collected over the first 700 m resolved at nine depth intervals at nine stations over a period of 14 d. Dead specimens were systematically observed irrespective of the depth interval, sampling day and size. Conversely, specimens in the smaller size fractions dominated the sampled populations at all times and were recorded at all depths, indicating that reproduction might have occurred continuously and throughout the occupied part of the water column. However, a closer look at the vertical and temporal size distribution of specimens within each species revealed an overrepresentation of large specimens in depths at the beginning of the sampling (shortly after the full moon) and an overrepresentation of small individuals at the surface and subsurface by the end of the sampling (around new moon). These observations imply that a disproportionately large portion of the population followed for each species a canonical reproductive trajectory, which involved synchronised reproduction and ontogenetic vertical migration with the descent of progressively maturing individuals. This concept is consistent with the initial observations from the Red Sea, on which the reproductive dynamics of planktonic foraminifera has been modelled. Our data extend this model to ... Article in Journal/Newspaper Planktonic foraminifera Niedersächsisches Online-Archiv NOA Biogeosciences 18 20 5789 5809 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Meilland, Julie Siccha, Michael Kaffenberger, Maike Bijma, Jelle Kucera, Michal Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean |
topic_facet |
article Verlagsveröffentlichung |
description |
It has long been assumed that the population dynamics of planktonic foraminifera is characterised by synchronous reproduction associated with ontogenetic vertical migration. However, due to contradictory observations, this concept became controversial, and subsequent studies provided evidence both in favour and against these phenomena. Here we present new observations from replicated vertically resolved profiles of abundance and shell size variation in four species of planktonic foraminifera from the tropical Atlantic to test for the presence, pattern, and extent of synchronised reproduction and ontogenetic vertical migration in this oceanic region. Specimens of Globigerinita glutinata, Globigerinoides ruber ruber, Globorotalia menardii and Orbulina universa were collected over the first 700 m resolved at nine depth intervals at nine stations over a period of 14 d. Dead specimens were systematically observed irrespective of the depth interval, sampling day and size. Conversely, specimens in the smaller size fractions dominated the sampled populations at all times and were recorded at all depths, indicating that reproduction might have occurred continuously and throughout the occupied part of the water column. However, a closer look at the vertical and temporal size distribution of specimens within each species revealed an overrepresentation of large specimens in depths at the beginning of the sampling (shortly after the full moon) and an overrepresentation of small individuals at the surface and subsurface by the end of the sampling (around new moon). These observations imply that a disproportionately large portion of the population followed for each species a canonical reproductive trajectory, which involved synchronised reproduction and ontogenetic vertical migration with the descent of progressively maturing individuals. This concept is consistent with the initial observations from the Red Sea, on which the reproductive dynamics of planktonic foraminifera has been modelled. Our data extend this model to ... |
format |
Article in Journal/Newspaper |
author |
Meilland, Julie Siccha, Michael Kaffenberger, Maike Bijma, Jelle Kucera, Michal |
author_facet |
Meilland, Julie Siccha, Michael Kaffenberger, Maike Bijma, Jelle Kucera, Michal |
author_sort |
Meilland, Julie |
title |
Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean |
title_short |
Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean |
title_full |
Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean |
title_fullStr |
Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean |
title_full_unstemmed |
Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean |
title_sort |
population dynamics and reproduction strategies of planktonic foraminifera in the open ocean |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/bg-18-5789-2021 https://noa.gwlb.de/receive/cop_mods_00058565 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058196/bg-18-5789-2021.pdf https://bg.copernicus.org/articles/18/5789/2021/bg-18-5789-2021.pdf |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-18-5789-2021 https://noa.gwlb.de/receive/cop_mods_00058565 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058196/bg-18-5789-2021.pdf https://bg.copernicus.org/articles/18/5789/2021/bg-18-5789-2021.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-18-5789-2021 |
container_title |
Biogeosciences |
container_volume |
18 |
container_issue |
20 |
container_start_page |
5789 |
op_container_end_page |
5809 |
_version_ |
1810472361366913024 |