Meiofauna as a valuable bioindicator of climate change in the polar regions

Establishing robust estimates of polar marine biodiversity is important for interpreting future changes in the Arctic; however, despite a recent increase in scientific expeditions, this region remains relatively underexplored. Particularly overlooked in biodiversity assessments are small species, su...

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Autores principales:	Francesca Leasi, Joseph L. Sevigny, Brandon T. Hassett
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Arctic Benthic meiofauna Metabarcoding Sea ice Sympagic meiofauna Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/8dddbaa26dbd41c09a27ef3c266eaf3d
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id	oai:doaj.org-article:8dddbaa26dbd41c09a27ef3c266eaf3d
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spelling	oai:doaj.org-article:8dddbaa26dbd41c09a27ef3c266eaf3d2021-12-01T04:36:15ZMeiofauna as a valuable bioindicator of climate change in the polar regions1470-160X10.1016/j.ecolind.2020.107133https://doaj.org/article/8dddbaa26dbd41c09a27ef3c266eaf3d2021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20310724https://doaj.org/toc/1470-160XEstablishing robust estimates of polar marine biodiversity is important for interpreting future changes in the Arctic; however, despite a recent increase in scientific expeditions, this region remains relatively underexplored. Particularly overlooked in biodiversity assessments are small species, such as protists, fungi, and many small invertebrates that are collectively known as meiofauna. These species contribute to the foundation of food webs and are crucial for the survival of larger species that are economically and socially important. The application of high-throughput sequencing methodologies has proven effective for biomonitoring small metazoan species but has sparingly been applied in the Arctic. We used a metabarcoding approach to assess the diversity of sea ice and sediment-associated metazoans from Utqiaġvik (Barrow), Alaska. Sea ice and sediment samples were collected six times over eight months (January through August) encompassing three seasons (winter, spring, and summer) from polar night to ice-out in August. Biodiversity was assessed as both richness and community composition by incorporating incidence data and phylogenetic distance. Environmental conditions associated with ice, sediment, water, and snow were measured and tested for possible correlations with biodiversity estimates. We found a high number of taxa distributed locally, suggesting that metabarcoding can be effectively applied to Arctic biomonitoring programs. In addition, these results show that season and habitat are significant predictors of meiofaunal biodiversity, supporting hypotheses that meiofauna can be used as a valuable indicator of climate change.Francesca LeasiJoseph L. SevignyBrandon T. HassettElsevierarticleArcticBenthic meiofaunaMetabarcodingSea iceSympagic meiofaunaEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107133- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Arctic Benthic meiofauna Metabarcoding Sea ice Sympagic meiofauna Ecology QH540-549.5
spellingShingle	Arctic Benthic meiofauna Metabarcoding Sea ice Sympagic meiofauna Ecology QH540-549.5 Francesca Leasi Joseph L. Sevigny Brandon T. Hassett Meiofauna as a valuable bioindicator of climate change in the polar regions
description	Establishing robust estimates of polar marine biodiversity is important for interpreting future changes in the Arctic; however, despite a recent increase in scientific expeditions, this region remains relatively underexplored. Particularly overlooked in biodiversity assessments are small species, such as protists, fungi, and many small invertebrates that are collectively known as meiofauna. These species contribute to the foundation of food webs and are crucial for the survival of larger species that are economically and socially important. The application of high-throughput sequencing methodologies has proven effective for biomonitoring small metazoan species but has sparingly been applied in the Arctic. We used a metabarcoding approach to assess the diversity of sea ice and sediment-associated metazoans from Utqiaġvik (Barrow), Alaska. Sea ice and sediment samples were collected six times over eight months (January through August) encompassing three seasons (winter, spring, and summer) from polar night to ice-out in August. Biodiversity was assessed as both richness and community composition by incorporating incidence data and phylogenetic distance. Environmental conditions associated with ice, sediment, water, and snow were measured and tested for possible correlations with biodiversity estimates. We found a high number of taxa distributed locally, suggesting that metabarcoding can be effectively applied to Arctic biomonitoring programs. In addition, these results show that season and habitat are significant predictors of meiofaunal biodiversity, supporting hypotheses that meiofauna can be used as a valuable indicator of climate change.
format	article
author	Francesca Leasi Joseph L. Sevigny Brandon T. Hassett
author_facet	Francesca Leasi Joseph L. Sevigny Brandon T. Hassett
author_sort	Francesca Leasi
title	Meiofauna as a valuable bioindicator of climate change in the polar regions
title_short	Meiofauna as a valuable bioindicator of climate change in the polar regions
title_full	Meiofauna as a valuable bioindicator of climate change in the polar regions
title_fullStr	Meiofauna as a valuable bioindicator of climate change in the polar regions
title_full_unstemmed	Meiofauna as a valuable bioindicator of climate change in the polar regions
title_sort	meiofauna as a valuable bioindicator of climate change in the polar regions
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/8dddbaa26dbd41c09a27ef3c266eaf3d
work_keys_str_mv	AT francescaleasi meiofaunaasavaluablebioindicatorofclimatechangeinthepolarregions AT josephlsevigny meiofaunaasavaluablebioindicatorofclimatechangeinthepolarregions AT brandonthassett meiofaunaasavaluablebioindicatorofclimatechangeinthepolarregions
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Meiofauna as a valuable bioindicator of climate change in the polar regions

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