Microbial plankton occurrence database in the North American Arctic region: synthesis of recent diversity of potentially toxic and harmful algae
The Arctic Ocean is currently undergoing significant transformations due to climate change, leading to profound changes in its microbial planktonic communities. These communities consist of a wide range of organisms, including photoautotrophic prokaryotes and eukaryotes, as well as heterotrophic, ph...
Main Authors: | , , , , , , |
---|---|
Format: | Text |
Language: | English |
Published: |
2024
|
Subjects: | |
Online Access: | https://doi.org/10.5194/essd-2024-19 https://essd.copernicus.org/preprints/essd-2024-19/ |
id |
ftcopernicus:oai:publications.copernicus.org:essdd117682 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:essdd117682 2024-09-15T17:54:10+00:00 Microbial plankton occurrence database in the North American Arctic region: synthesis of recent diversity of potentially toxic and harmful algae Schiffrine, Nicolas Dhifallah, Fatma Dionne, Kaven Poulin, Michel Lessard, Sylvie Rochon, André Gosselin, Michel 2024-03-04 application/pdf https://doi.org/10.5194/essd-2024-19 https://essd.copernicus.org/preprints/essd-2024-19/ eng eng doi:10.5194/essd-2024-19 https://essd.copernicus.org/preprints/essd-2024-19/ eISSN: 1866-3516 Text 2024 ftcopernicus https://doi.org/10.5194/essd-2024-19 2024-08-28T05:24:15Z The Arctic Ocean is currently undergoing significant transformations due to climate change, leading to profound changes in its microbial planktonic communities. These communities consist of a wide range of organisms, including photoautotrophic prokaryotes and eukaryotes, as well as heterotrophic, phagotrophic, and mixotrophic protistan species. Here, for simplicity, we refer to these single-celled species as phytoplankton. Within this diversity, potentially toxic and/or harmful algal species (hereafter abbreviated as “HA”) are of particular concern. These organisms have the potential to spread into Arctic waters, posing threats to both human and ecosystem health. Despite their importance, the spatial and temporal distribution of phytoplankton communities, including HA species, in the North American Arctic, remains poorly understood. To address this gap, we compiled and synthesized the largest possible body of data from different databases, individual published and unpublished datasets, and partitioned it into nine regions based on the Large Marine Ecosystem classification. Our dataset contains 385 800 individual georeferenced data points and 18 268 unique sampling events, revealing greater diversity than previously thought, with 1445 unique taxa. Heterokontophyta (which notably included diatoms) and Dinoflagellata were the most dominant phyla. Our results indicate distinct spatial patterns of diversity, with the highest diversity observed in Atlantic-influenced regions of the North American Arctic. For most of the HA species recorded in our database, no evidence was found for an increase in the northernmost latitude where HA species are observed over the years, meaning that there is no substantial spread of HA species into the North American part of the Arctic. Our study challenges the traditional view of the Arctic as being unsuitable for toxin-producing and harmful algae and highlights the importance of extensive and long-term sampling efforts to understand the ... Text Arctic Ocean Climate change Phytoplankton Copernicus Publications: E-Journals |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
The Arctic Ocean is currently undergoing significant transformations due to climate change, leading to profound changes in its microbial planktonic communities. These communities consist of a wide range of organisms, including photoautotrophic prokaryotes and eukaryotes, as well as heterotrophic, phagotrophic, and mixotrophic protistan species. Here, for simplicity, we refer to these single-celled species as phytoplankton. Within this diversity, potentially toxic and/or harmful algal species (hereafter abbreviated as “HA”) are of particular concern. These organisms have the potential to spread into Arctic waters, posing threats to both human and ecosystem health. Despite their importance, the spatial and temporal distribution of phytoplankton communities, including HA species, in the North American Arctic, remains poorly understood. To address this gap, we compiled and synthesized the largest possible body of data from different databases, individual published and unpublished datasets, and partitioned it into nine regions based on the Large Marine Ecosystem classification. Our dataset contains 385 800 individual georeferenced data points and 18 268 unique sampling events, revealing greater diversity than previously thought, with 1445 unique taxa. Heterokontophyta (which notably included diatoms) and Dinoflagellata were the most dominant phyla. Our results indicate distinct spatial patterns of diversity, with the highest diversity observed in Atlantic-influenced regions of the North American Arctic. For most of the HA species recorded in our database, no evidence was found for an increase in the northernmost latitude where HA species are observed over the years, meaning that there is no substantial spread of HA species into the North American part of the Arctic. Our study challenges the traditional view of the Arctic as being unsuitable for toxin-producing and harmful algae and highlights the importance of extensive and long-term sampling efforts to understand the ... |
format |
Text |
author |
Schiffrine, Nicolas Dhifallah, Fatma Dionne, Kaven Poulin, Michel Lessard, Sylvie Rochon, André Gosselin, Michel |
spellingShingle |
Schiffrine, Nicolas Dhifallah, Fatma Dionne, Kaven Poulin, Michel Lessard, Sylvie Rochon, André Gosselin, Michel Microbial plankton occurrence database in the North American Arctic region: synthesis of recent diversity of potentially toxic and harmful algae |
author_facet |
Schiffrine, Nicolas Dhifallah, Fatma Dionne, Kaven Poulin, Michel Lessard, Sylvie Rochon, André Gosselin, Michel |
author_sort |
Schiffrine, Nicolas |
title |
Microbial plankton occurrence database in the North American Arctic region: synthesis of recent diversity of potentially toxic and harmful algae |
title_short |
Microbial plankton occurrence database in the North American Arctic region: synthesis of recent diversity of potentially toxic and harmful algae |
title_full |
Microbial plankton occurrence database in the North American Arctic region: synthesis of recent diversity of potentially toxic and harmful algae |
title_fullStr |
Microbial plankton occurrence database in the North American Arctic region: synthesis of recent diversity of potentially toxic and harmful algae |
title_full_unstemmed |
Microbial plankton occurrence database in the North American Arctic region: synthesis of recent diversity of potentially toxic and harmful algae |
title_sort |
microbial plankton occurrence database in the north american arctic region: synthesis of recent diversity of potentially toxic and harmful algae |
publishDate |
2024 |
url |
https://doi.org/10.5194/essd-2024-19 https://essd.copernicus.org/preprints/essd-2024-19/ |
genre |
Arctic Ocean Climate change Phytoplankton |
genre_facet |
Arctic Ocean Climate change Phytoplankton |
op_source |
eISSN: 1866-3516 |
op_relation |
doi:10.5194/essd-2024-19 https://essd.copernicus.org/preprints/essd-2024-19/ |
op_doi |
https://doi.org/10.5194/essd-2024-19 |
_version_ |
1810430387591053312 |