Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice
Ciliophora is a phylum of unicellular eukaryotes that are common and have pivotal roles in aquatic environments. Sea ice is a marine habitat, which is composed of a matrix of solid ice and pockets of saline water in which Ciliophora thrive. Here, we used phylogenetic placement to identify Ciliophora...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/352764 2024-01-07T09:38:45+01:00 Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice Majaneva, Markus Rintala, Janne-Markus Blomster, Jaanika Department of Forest Sciences Environmental Sciences Tvärminne Zoological Station Institute for Atmospheric and Earth System Research (INAR) Ecosystems and Environment Research Programme Teachers' Academy Helsinki Institute of Sustainability Science (HELSUS) Life Science Education Marine Ecosystems Research Group Jaanika Blomster / Principal Investigator 2023-01-10T12:41:01Z 11 application/pdf http://hdl.handle.net/10138/352764 eng eng Springer 10.1007/s00248-021-01915-4 Majaneva , M , Rintala , J-M & Blomster , J 2022 , ' Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice ' , Microbial Ecology , vol. 84 , pp. 974–984 . https://doi.org/10.1007/s00248-021-01915-4 ORCID: /0000-0003-1347-7919/work/126489253 266f426b-d057-4633-8329-7b2600aaf7be http://hdl.handle.net/10138/352764 000715669900002 cc_by openAccess info:eu-repo/semantics/openAccess 1181 Ecology evolutionary biology DNA metabarcoding Phylogenetic placement Mixotrophy Predator-prey interactions Winter ecology WATER ANTARCTICA DIVERSITY COMMUNITY PROTISTS BIOMASS AUTUMN Article publishedVersion 2023 ftunivhelsihelda 2023-12-14T00:09:50Z Ciliophora is a phylum of unicellular eukaryotes that are common and have pivotal roles in aquatic environments. Sea ice is a marine habitat, which is composed of a matrix of solid ice and pockets of saline water in which Ciliophora thrive. Here, we used phylogenetic placement to identify Ciliophora 18S ribosomal RNA reads obtained from wintertime water and sea ice, and assigned functions to the reads based on this taxonomic information. Based on our results, sea-ice Ciliophora assemblages are poorer in taxonomic and functional richness than under-ice water and water-column assemblages. Ciliophora diversity stayed stable throughout the ice-covered season both in sea ice and in water, although the assemblages changed during the course of our sampling. Under-ice water and the water column were distinctly predominated by planktonic orders Choreotrichida and Oligotrichida, which led to significantly lower taxonomic and functional evenness in water than in sea ice. In addition to planktonic Ciliophora, assemblages in sea ice included a set of moderately abundant surface-oriented species. Omnivory (feeding on bacteria and unicellular eukaryotes) was the most common feeding type but was not as predominant in sea ice as in water. Sea ice included cytotrophic (feeding on unicellular eukaryotes), bacterivorous and parasitic Ciliophora in addition to the predominant omnivorous Ciliophora. Potentially mixotrophic Ciliophora predominated the water column and heterotrophic Ciliophora sea ice. Our results highlight sea ice as an environment that creates a set of variable habitats, which may be threatened by the diminishing extent of sea ice due to changing climate. Peer reviewed Article in Journal/Newspaper Antarc* Antarctica Sea ice HELDA – University of Helsinki Open Repository Microbial Ecology 84 4 974 984 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
1181 Ecology evolutionary biology DNA metabarcoding Phylogenetic placement Mixotrophy Predator-prey interactions Winter ecology WATER ANTARCTICA DIVERSITY COMMUNITY PROTISTS BIOMASS AUTUMN |
spellingShingle |
1181 Ecology evolutionary biology DNA metabarcoding Phylogenetic placement Mixotrophy Predator-prey interactions Winter ecology WATER ANTARCTICA DIVERSITY COMMUNITY PROTISTS BIOMASS AUTUMN Majaneva, Markus Rintala, Janne-Markus Blomster, Jaanika Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice |
topic_facet |
1181 Ecology evolutionary biology DNA metabarcoding Phylogenetic placement Mixotrophy Predator-prey interactions Winter ecology WATER ANTARCTICA DIVERSITY COMMUNITY PROTISTS BIOMASS AUTUMN |
description |
Ciliophora is a phylum of unicellular eukaryotes that are common and have pivotal roles in aquatic environments. Sea ice is a marine habitat, which is composed of a matrix of solid ice and pockets of saline water in which Ciliophora thrive. Here, we used phylogenetic placement to identify Ciliophora 18S ribosomal RNA reads obtained from wintertime water and sea ice, and assigned functions to the reads based on this taxonomic information. Based on our results, sea-ice Ciliophora assemblages are poorer in taxonomic and functional richness than under-ice water and water-column assemblages. Ciliophora diversity stayed stable throughout the ice-covered season both in sea ice and in water, although the assemblages changed during the course of our sampling. Under-ice water and the water column were distinctly predominated by planktonic orders Choreotrichida and Oligotrichida, which led to significantly lower taxonomic and functional evenness in water than in sea ice. In addition to planktonic Ciliophora, assemblages in sea ice included a set of moderately abundant surface-oriented species. Omnivory (feeding on bacteria and unicellular eukaryotes) was the most common feeding type but was not as predominant in sea ice as in water. Sea ice included cytotrophic (feeding on unicellular eukaryotes), bacterivorous and parasitic Ciliophora in addition to the predominant omnivorous Ciliophora. Potentially mixotrophic Ciliophora predominated the water column and heterotrophic Ciliophora sea ice. Our results highlight sea ice as an environment that creates a set of variable habitats, which may be threatened by the diminishing extent of sea ice due to changing climate. Peer reviewed |
author2 |
Department of Forest Sciences Environmental Sciences Tvärminne Zoological Station Institute for Atmospheric and Earth System Research (INAR) Ecosystems and Environment Research Programme Teachers' Academy Helsinki Institute of Sustainability Science (HELSUS) Life Science Education Marine Ecosystems Research Group Jaanika Blomster / Principal Investigator |
format |
Article in Journal/Newspaper |
author |
Majaneva, Markus Rintala, Janne-Markus Blomster, Jaanika |
author_facet |
Majaneva, Markus Rintala, Janne-Markus Blomster, Jaanika |
author_sort |
Majaneva, Markus |
title |
Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice |
title_short |
Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice |
title_full |
Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice |
title_fullStr |
Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice |
title_full_unstemmed |
Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice |
title_sort |
taxonomically and functionally distinct ciliophora assemblages inhabiting baltic sea ice |
publisher |
Springer |
publishDate |
2023 |
url |
http://hdl.handle.net/10138/352764 |
genre |
Antarc* Antarctica Sea ice |
genre_facet |
Antarc* Antarctica Sea ice |
op_relation |
10.1007/s00248-021-01915-4 Majaneva , M , Rintala , J-M & Blomster , J 2022 , ' Taxonomically and Functionally Distinct Ciliophora Assemblages Inhabiting Baltic Sea Ice ' , Microbial Ecology , vol. 84 , pp. 974–984 . https://doi.org/10.1007/s00248-021-01915-4 ORCID: /0000-0003-1347-7919/work/126489253 266f426b-d057-4633-8329-7b2600aaf7be http://hdl.handle.net/10138/352764 000715669900002 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Microbial Ecology |
container_volume |
84 |
container_issue |
4 |
container_start_page |
974 |
op_container_end_page |
984 |
_version_ |
1787425591584096256 |