Ichnodiversity and bathymetric range of microbioerosion traces in polar barnacles of Svalbard
This first comprehensive investigation of microbioerosion traces in polar barnacles addresses two bathymetrical transects from the intertidal down to subtidal water depths in two different carbonate factories in the Svalbard Archipelago: the bay Mosselbukta and the ocean bank Bjørnøy-Banken. Scannin...
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Norwegian Polar Institute
2020
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Online Access: | https://doi.org/10.33265/polar.v39.3766 https://doaj.org/article/301363987ab14e6ab30fcc8442953e54 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:301363987ab14e6ab30fcc8442953e54 2023-05-15T15:11:19+02:00 Ichnodiversity and bathymetric range of microbioerosion traces in polar barnacles of Svalbard Neele Meyer Max Wisshak André Freiwald 2020-09-01 https://doi.org/10.33265/polar.v39.3766 https://doaj.org/article/301363987ab14e6ab30fcc8442953e54 en eng Norwegian Polar Institute 1751-8369 doi:10.33265/polar.v39.3766 https://doaj.org/article/301363987ab14e6ab30fcc8442953e54 undefined Polar Research, Vol 39, Iss 0, Pp 1-18 (2020) bioerosion ichnotaxonomy ichnodisparity arctic mosselbukta bjørnøy-banken geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.33265/polar.v39.3766 2023-01-22T19:29:15Z This first comprehensive investigation of microbioerosion traces in polar barnacles addresses two bathymetrical transects from the intertidal down to subtidal water depths in two different carbonate factories in the Svalbard Archipelago: the bay Mosselbukta and the ocean bank Bjørnøy-Banken. Scanning electron microscopy of epoxy resin casts of barnacle shells yielded 20 different microendolithic bioerosion traces, probably produced by cyanobacteria (three), chlorophytes (two), rhodophytes (one), sponges (one), foraminifera (three), fungi (nine) and bacteria (one). The lowest ichnodiversity in both locations was observed in the shallow euphotic zone and is likely a result of strong temperature fluctuations, extreme seasonality of light levels and episodic sea-ice cover. At 25–150 m water depth, the ichnodiversity remains relatively constant (9–13 ichnospecies), albeit with differing ichnospecies composition, generally dominated by borings from chlorophytes and fungi. Ichnotaxa at Mosselbukta and Bjørnøy-Banken were similar in numbers but differed in abundance and slightly also in ichnospecies composition. Statistical tests indicate that water depth (affecting the availability of light) is the most significant driver for the development of different microbioerosion trace assemblages across the bathymetrical transects. In contrast, no significant differences in ichnodisparity were found, indicating a comparable suite of architectural designs of the micro-borings throughout bathymetry and location. The comparison of our results with literature data confirms a decrease in ichnodiversity from lower to higher latitudes, although targeted bioerosion analyses from other polar environments are needed to gain a more complete picture of the role of bioerosion in polar carbonate factories. Article in Journal/Newspaper Arctic Foraminifera* Polar Research Sea ice Svalbard Unknown Arctic Banken ENVELOPE(25.108,25.108,70.963,70.963) Bjørnøy ENVELOPE(18.167,18.167,69.767,69.767) Mosselbukta ENVELOPE(15.955,15.955,79.891,79.891) Svalbard Svalbard Archipelago Polar Research 39 0 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
bioerosion ichnotaxonomy ichnodisparity arctic mosselbukta bjørnøy-banken geo envir |
spellingShingle |
bioerosion ichnotaxonomy ichnodisparity arctic mosselbukta bjørnøy-banken geo envir Neele Meyer Max Wisshak André Freiwald Ichnodiversity and bathymetric range of microbioerosion traces in polar barnacles of Svalbard |
topic_facet |
bioerosion ichnotaxonomy ichnodisparity arctic mosselbukta bjørnøy-banken geo envir |
description |
This first comprehensive investigation of microbioerosion traces in polar barnacles addresses two bathymetrical transects from the intertidal down to subtidal water depths in two different carbonate factories in the Svalbard Archipelago: the bay Mosselbukta and the ocean bank Bjørnøy-Banken. Scanning electron microscopy of epoxy resin casts of barnacle shells yielded 20 different microendolithic bioerosion traces, probably produced by cyanobacteria (three), chlorophytes (two), rhodophytes (one), sponges (one), foraminifera (three), fungi (nine) and bacteria (one). The lowest ichnodiversity in both locations was observed in the shallow euphotic zone and is likely a result of strong temperature fluctuations, extreme seasonality of light levels and episodic sea-ice cover. At 25–150 m water depth, the ichnodiversity remains relatively constant (9–13 ichnospecies), albeit with differing ichnospecies composition, generally dominated by borings from chlorophytes and fungi. Ichnotaxa at Mosselbukta and Bjørnøy-Banken were similar in numbers but differed in abundance and slightly also in ichnospecies composition. Statistical tests indicate that water depth (affecting the availability of light) is the most significant driver for the development of different microbioerosion trace assemblages across the bathymetrical transects. In contrast, no significant differences in ichnodisparity were found, indicating a comparable suite of architectural designs of the micro-borings throughout bathymetry and location. The comparison of our results with literature data confirms a decrease in ichnodiversity from lower to higher latitudes, although targeted bioerosion analyses from other polar environments are needed to gain a more complete picture of the role of bioerosion in polar carbonate factories. |
format |
Article in Journal/Newspaper |
author |
Neele Meyer Max Wisshak André Freiwald |
author_facet |
Neele Meyer Max Wisshak André Freiwald |
author_sort |
Neele Meyer |
title |
Ichnodiversity and bathymetric range of microbioerosion traces in polar barnacles of Svalbard |
title_short |
Ichnodiversity and bathymetric range of microbioerosion traces in polar barnacles of Svalbard |
title_full |
Ichnodiversity and bathymetric range of microbioerosion traces in polar barnacles of Svalbard |
title_fullStr |
Ichnodiversity and bathymetric range of microbioerosion traces in polar barnacles of Svalbard |
title_full_unstemmed |
Ichnodiversity and bathymetric range of microbioerosion traces in polar barnacles of Svalbard |
title_sort |
ichnodiversity and bathymetric range of microbioerosion traces in polar barnacles of svalbard |
publisher |
Norwegian Polar Institute |
publishDate |
2020 |
url |
https://doi.org/10.33265/polar.v39.3766 https://doaj.org/article/301363987ab14e6ab30fcc8442953e54 |
long_lat |
ENVELOPE(25.108,25.108,70.963,70.963) ENVELOPE(18.167,18.167,69.767,69.767) ENVELOPE(15.955,15.955,79.891,79.891) |
geographic |
Arctic Banken Bjørnøy Mosselbukta Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Banken Bjørnøy Mosselbukta Svalbard Svalbard Archipelago |
genre |
Arctic Foraminifera* Polar Research Sea ice Svalbard |
genre_facet |
Arctic Foraminifera* Polar Research Sea ice Svalbard |
op_source |
Polar Research, Vol 39, Iss 0, Pp 1-18 (2020) |
op_relation |
1751-8369 doi:10.33265/polar.v39.3766 https://doaj.org/article/301363987ab14e6ab30fcc8442953e54 |
op_rights |
undefined |
op_doi |
https://doi.org/10.33265/polar.v39.3766 |
container_title |
Polar Research |
container_volume |
39 |
container_issue |
0 |
_version_ |
1766342188771311616 |