Habitat types and megabenthos composition from three sponge-dominated high-Arctic seamounts
Abstract Seamounts are isolated underwater mountains stretching > 1000 m above the seafloor. They are identified as biodiversity hotspots of marine life, and host benthic assemblages that may vary on regional (among seamounts) and local (within seamounts) scales. Here, we collected seafloor image...
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ftdoajarticles:oai:doaj.org/article:872004b5c405495d9123feabee4cb592 2023-05-15T14:52:37+02:00 Habitat types and megabenthos composition from three sponge-dominated high-Arctic seamounts Tanja Stratmann Erik Simon-Lledó Teresa Maria Morganti Anna de Kluijver Andrey Vedenin Autun Purser 2022-11-01T00:00:00Z https://doi.org/10.1038/s41598-022-25240-z https://doaj.org/article/872004b5c405495d9123feabee4cb592 EN eng Nature Portfolio https://doi.org/10.1038/s41598-022-25240-z https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-25240-z 2045-2322 https://doaj.org/article/872004b5c405495d9123feabee4cb592 Scientific Reports, Vol 12, Iss 1, Pp 1-15 (2022) Medicine R Science Q article 2022 ftdoajarticles https://doi.org/10.1038/s41598-022-25240-z 2022-12-30T19:40:26Z Abstract Seamounts are isolated underwater mountains stretching > 1000 m above the seafloor. They are identified as biodiversity hotspots of marine life, and host benthic assemblages that may vary on regional (among seamounts) and local (within seamounts) scales. Here, we collected seafloor imagery of three seamounts at the Langseth Ridge in the central Arctic Ocean to assess habitats and megabenthos community composition at the Central Mount (CM), the Karasik Seamount (KS), and the Northern Mount (NM). The majority of seafloor across these seamounts comprised bare rock, covered with a mixed layer of sponge spicule mats intermixed with detrital debris composed of polychaete tubes, and sand, gravel, and/or rocks. The megabenthos assemblages consisted of in total 15 invertebrate epibenthos taxa and 4 fish taxa, contributing to mean megabenthos densities of 55,745 ind. ha−1 at CM, 110,442 ind. ha−1 at KS, and 65,849 ind. ha−1 at NM. The faunal assemblages at all three seamounts were dominated by habitat-forming Tetractinellida sponges that contributed between 66% (KS) and 85% (CM) to all megabenthos. Interestingly, taxa richness did not differ at regional and local scale, whereas the megabenthos community composition did. Abiotic and biogenic factors shaping distinct habitat types played a major role in structuring of benthic communities in high-Arctic seamounts. Article in Journal/Newspaper Arctic Arctic Ocean Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Bare Rock ENVELOPE(-45.589,-45.589,-60.704,-60.704) Langseth ENVELOPE(15.668,15.668,68.338,68.338) Scientific Reports 12 1 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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Medicine R Science Q Tanja Stratmann Erik Simon-Lledó Teresa Maria Morganti Anna de Kluijver Andrey Vedenin Autun Purser Habitat types and megabenthos composition from three sponge-dominated high-Arctic seamounts |
topic_facet |
Medicine R Science Q |
description |
Abstract Seamounts are isolated underwater mountains stretching > 1000 m above the seafloor. They are identified as biodiversity hotspots of marine life, and host benthic assemblages that may vary on regional (among seamounts) and local (within seamounts) scales. Here, we collected seafloor imagery of three seamounts at the Langseth Ridge in the central Arctic Ocean to assess habitats and megabenthos community composition at the Central Mount (CM), the Karasik Seamount (KS), and the Northern Mount (NM). The majority of seafloor across these seamounts comprised bare rock, covered with a mixed layer of sponge spicule mats intermixed with detrital debris composed of polychaete tubes, and sand, gravel, and/or rocks. The megabenthos assemblages consisted of in total 15 invertebrate epibenthos taxa and 4 fish taxa, contributing to mean megabenthos densities of 55,745 ind. ha−1 at CM, 110,442 ind. ha−1 at KS, and 65,849 ind. ha−1 at NM. The faunal assemblages at all three seamounts were dominated by habitat-forming Tetractinellida sponges that contributed between 66% (KS) and 85% (CM) to all megabenthos. Interestingly, taxa richness did not differ at regional and local scale, whereas the megabenthos community composition did. Abiotic and biogenic factors shaping distinct habitat types played a major role in structuring of benthic communities in high-Arctic seamounts. |
format |
Article in Journal/Newspaper |
author |
Tanja Stratmann Erik Simon-Lledó Teresa Maria Morganti Anna de Kluijver Andrey Vedenin Autun Purser |
author_facet |
Tanja Stratmann Erik Simon-Lledó Teresa Maria Morganti Anna de Kluijver Andrey Vedenin Autun Purser |
author_sort |
Tanja Stratmann |
title |
Habitat types and megabenthos composition from three sponge-dominated high-Arctic seamounts |
title_short |
Habitat types and megabenthos composition from three sponge-dominated high-Arctic seamounts |
title_full |
Habitat types and megabenthos composition from three sponge-dominated high-Arctic seamounts |
title_fullStr |
Habitat types and megabenthos composition from three sponge-dominated high-Arctic seamounts |
title_full_unstemmed |
Habitat types and megabenthos composition from three sponge-dominated high-Arctic seamounts |
title_sort |
habitat types and megabenthos composition from three sponge-dominated high-arctic seamounts |
publisher |
Nature Portfolio |
publishDate |
2022 |
url |
https://doi.org/10.1038/s41598-022-25240-z https://doaj.org/article/872004b5c405495d9123feabee4cb592 |
long_lat |
ENVELOPE(-45.589,-45.589,-60.704,-60.704) ENVELOPE(15.668,15.668,68.338,68.338) |
geographic |
Arctic Arctic Ocean Bare Rock Langseth |
geographic_facet |
Arctic Arctic Ocean Bare Rock Langseth |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
Scientific Reports, Vol 12, Iss 1, Pp 1-15 (2022) |
op_relation |
https://doi.org/10.1038/s41598-022-25240-z https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-25240-z 2045-2322 https://doaj.org/article/872004b5c405495d9123feabee4cb592 |
op_doi |
https://doi.org/10.1038/s41598-022-25240-z |
container_title |
Scientific Reports |
container_volume |
12 |
container_issue |
1 |
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1766323840813629440 |