Meroplankton Diversity, Seasonality and Life-History Traits Across the Barents Sea Polar Front Revealed by High-Throughput DNA Barcoding
In many species of marine benthic invertebrates, a planktonic larval phase plays a critical role in dispersal. Very little is known about the larval biology of most species, however, in part because species identification has historically been hindered by the microscopic size and morphological simil...
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Online Access: | http://dx.doi.org/10.3389/fmars.2021.677732 https://www.frontiersin.org/articles/10.3389/fmars.2021.677732/full |
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crfrontiers:10.3389/fmars.2021.677732 2024-04-21T07:58:04+00:00 Meroplankton Diversity, Seasonality and Life-History Traits Across the Barents Sea Polar Front Revealed by High-Throughput DNA Barcoding Descôteaux, Raphaëlle Ershova, Elizaveta Wangensteen, Owen S. Præbel, Kim Renaud, Paul E. Cottier, Finlo Bluhm, Bodil A. Tromsø Forskningsstiftelse Fonds Québécois de la Recherche sur la Nature et les Technologies 2021 http://dx.doi.org/10.3389/fmars.2021.677732 https://www.frontiersin.org/articles/10.3389/fmars.2021.677732/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 8 ISSN 2296-7745 Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography journal-article 2021 crfrontiers https://doi.org/10.3389/fmars.2021.677732 2024-03-26T08:35:42Z In many species of marine benthic invertebrates, a planktonic larval phase plays a critical role in dispersal. Very little is known about the larval biology of most species, however, in part because species identification has historically been hindered by the microscopic size and morphological similarity among related taxa. This study aimed to determine the taxonomic composition and seasonal distribution of meroplankton in the Barents Sea, across the Polar Front. We collected meroplankton during five time points seasonally and used high-throughput DNA barcoding of individual larvae to obtain species-level information on larval seasonality. We found that meroplankton was highly diverse (72 taxa from eight phyla) and present in the Barents Sea year-round with a peak in abundance in August and November, defying the conventional wisdom that peak abundance would coincide with the spring phytoplankton bloom. Ophiuroids, bivalves, and polychaetes dominated larval abundance while gastropods and polychaetes accounted for the bulk of the taxon diversity. Community structure varied seasonally and total abundance was generally higher south of the Polar Front while taxon richness was overall greater to the north. Of the species identified, most were known inhabitants of the Barents Sea. However, the nemertean Cephalothrix iwatai and the brittle star Ophiocten gracilis were abundant in the meroplankton despite never having been previously recorded in the northern Barents Sea. The new knowledge on seasonal patterns of individual meroplanktonic species has implications for understanding environment-biotic interactions in a changing Arctic and provides a framework for early detection of potential newcomers to the system. Article in Journal/Newspaper Barents Sea Phytoplankton Frontiers (Publisher) Frontiers in Marine Science 8 |
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Frontiers (Publisher) |
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language |
unknown |
topic |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
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Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography Descôteaux, Raphaëlle Ershova, Elizaveta Wangensteen, Owen S. Præbel, Kim Renaud, Paul E. Cottier, Finlo Bluhm, Bodil A. Meroplankton Diversity, Seasonality and Life-History Traits Across the Barents Sea Polar Front Revealed by High-Throughput DNA Barcoding |
topic_facet |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
description |
In many species of marine benthic invertebrates, a planktonic larval phase plays a critical role in dispersal. Very little is known about the larval biology of most species, however, in part because species identification has historically been hindered by the microscopic size and morphological similarity among related taxa. This study aimed to determine the taxonomic composition and seasonal distribution of meroplankton in the Barents Sea, across the Polar Front. We collected meroplankton during five time points seasonally and used high-throughput DNA barcoding of individual larvae to obtain species-level information on larval seasonality. We found that meroplankton was highly diverse (72 taxa from eight phyla) and present in the Barents Sea year-round with a peak in abundance in August and November, defying the conventional wisdom that peak abundance would coincide with the spring phytoplankton bloom. Ophiuroids, bivalves, and polychaetes dominated larval abundance while gastropods and polychaetes accounted for the bulk of the taxon diversity. Community structure varied seasonally and total abundance was generally higher south of the Polar Front while taxon richness was overall greater to the north. Of the species identified, most were known inhabitants of the Barents Sea. However, the nemertean Cephalothrix iwatai and the brittle star Ophiocten gracilis were abundant in the meroplankton despite never having been previously recorded in the northern Barents Sea. The new knowledge on seasonal patterns of individual meroplanktonic species has implications for understanding environment-biotic interactions in a changing Arctic and provides a framework for early detection of potential newcomers to the system. |
author2 |
Tromsø Forskningsstiftelse Fonds Québécois de la Recherche sur la Nature et les Technologies |
format |
Article in Journal/Newspaper |
author |
Descôteaux, Raphaëlle Ershova, Elizaveta Wangensteen, Owen S. Præbel, Kim Renaud, Paul E. Cottier, Finlo Bluhm, Bodil A. |
author_facet |
Descôteaux, Raphaëlle Ershova, Elizaveta Wangensteen, Owen S. Præbel, Kim Renaud, Paul E. Cottier, Finlo Bluhm, Bodil A. |
author_sort |
Descôteaux, Raphaëlle |
title |
Meroplankton Diversity, Seasonality and Life-History Traits Across the Barents Sea Polar Front Revealed by High-Throughput DNA Barcoding |
title_short |
Meroplankton Diversity, Seasonality and Life-History Traits Across the Barents Sea Polar Front Revealed by High-Throughput DNA Barcoding |
title_full |
Meroplankton Diversity, Seasonality and Life-History Traits Across the Barents Sea Polar Front Revealed by High-Throughput DNA Barcoding |
title_fullStr |
Meroplankton Diversity, Seasonality and Life-History Traits Across the Barents Sea Polar Front Revealed by High-Throughput DNA Barcoding |
title_full_unstemmed |
Meroplankton Diversity, Seasonality and Life-History Traits Across the Barents Sea Polar Front Revealed by High-Throughput DNA Barcoding |
title_sort |
meroplankton diversity, seasonality and life-history traits across the barents sea polar front revealed by high-throughput dna barcoding |
publisher |
Frontiers Media SA |
publishDate |
2021 |
url |
http://dx.doi.org/10.3389/fmars.2021.677732 https://www.frontiersin.org/articles/10.3389/fmars.2021.677732/full |
genre |
Barents Sea Phytoplankton |
genre_facet |
Barents Sea Phytoplankton |
op_source |
Frontiers in Marine Science volume 8 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2021.677732 |
container_title |
Frontiers in Marine Science |
container_volume |
8 |
_version_ |
1796939413070020608 |