Water masses constrain the distribution of deep-sea sponges in the North Atlantic Ocean and Nordic Seas
Water masses are bodies of water with distinctive physical and biogeochemical properties. They impart vertical structure to the deep ocean, participate in circulation, and can be traced over great distances, potentially influencing the distributions of deep-sea fauna. The classic potential temperatu...
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ftunivbergen:oai:bora.uib.no:11250/2761685 2023-05-15T14:59:48+02:00 Water masses constrain the distribution of deep-sea sponges in the North Atlantic Ocean and Nordic Seas Roberts, E. M. Bowers, D. G. Meyer, H. K. Samuelsen, Annette Rapp, Hans Tore Cardenas, P. 2021 application/pdf https://hdl.handle.net/11250/2761685 https://doi.org/10.3354/meps13570 eng eng Inter-Research urn:issn:0171-8630 https://hdl.handle.net/11250/2761685 https://doi.org/10.3354/meps13570 cristin:1889192 Marine Ecology Progress Series. 2021, 659, 75-96. Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright the authors 2021 Marine Ecology Progress Series 75-96 659 Journal article Peer reviewed 2021 ftunivbergen https://doi.org/10.3354/meps13570 2023-03-14T17:40:30Z Water masses are bodies of water with distinctive physical and biogeochemical properties. They impart vertical structure to the deep ocean, participate in circulation, and can be traced over great distances, potentially influencing the distributions of deep-sea fauna. The classic potential temperature-salinity (θ-s) diagram was used to investigate deep-sea sponge (demosponge genus Geodia) association with water masses over the North Atlantic Ocean and Nordic Seas. A novel analysis was conducted, based on sampling the curvature of climatological mean θ-s curves at sponge locations. Sponges were particularly associated with turning points in the θ-s curves, indicative of intermediate and deep water masses. Arctic geodiid species (G. hentscheli and G. parva) were associated with Arctic intermediate and deep waters in the Nordic Seas, and with dense overflows into the northern North Atlantic. Boreal species (G. atlantica, G. barretti, G. macandrewii, and G. phlegraei) were associated with upper and intermediate water masses in the Northeast Atlantic and with upper, Atlantic-derived waters in the Nordic Seas. Taken together with distributional patterns, a link with thermohaline currents was also inferred. We conclude that water masses and major current pathways structure the distribution of a key deep-sea benthic faunal group on an ocean basin scale. This is most likely because of a combination of the physical constraints they place on the dispersal of early life-history stages, ecophysiological adaptation (evolved tolerances) to specific water masses, and the benefits to filter-feeders of certain phenomena linked to water column structure (e.g. nepheloid layers, internal waves/tides, density-driven currents). publishedVersion Article in Journal/Newspaper Arctic Nordic Seas North Atlantic Northeast Atlantic University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Marine Ecology Progress Series 659 75 96 |
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Open Polar |
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University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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ftunivbergen |
language |
English |
description |
Water masses are bodies of water with distinctive physical and biogeochemical properties. They impart vertical structure to the deep ocean, participate in circulation, and can be traced over great distances, potentially influencing the distributions of deep-sea fauna. The classic potential temperature-salinity (θ-s) diagram was used to investigate deep-sea sponge (demosponge genus Geodia) association with water masses over the North Atlantic Ocean and Nordic Seas. A novel analysis was conducted, based on sampling the curvature of climatological mean θ-s curves at sponge locations. Sponges were particularly associated with turning points in the θ-s curves, indicative of intermediate and deep water masses. Arctic geodiid species (G. hentscheli and G. parva) were associated with Arctic intermediate and deep waters in the Nordic Seas, and with dense overflows into the northern North Atlantic. Boreal species (G. atlantica, G. barretti, G. macandrewii, and G. phlegraei) were associated with upper and intermediate water masses in the Northeast Atlantic and with upper, Atlantic-derived waters in the Nordic Seas. Taken together with distributional patterns, a link with thermohaline currents was also inferred. We conclude that water masses and major current pathways structure the distribution of a key deep-sea benthic faunal group on an ocean basin scale. This is most likely because of a combination of the physical constraints they place on the dispersal of early life-history stages, ecophysiological adaptation (evolved tolerances) to specific water masses, and the benefits to filter-feeders of certain phenomena linked to water column structure (e.g. nepheloid layers, internal waves/tides, density-driven currents). publishedVersion |
format |
Article in Journal/Newspaper |
author |
Roberts, E. M. Bowers, D. G. Meyer, H. K. Samuelsen, Annette Rapp, Hans Tore Cardenas, P. |
spellingShingle |
Roberts, E. M. Bowers, D. G. Meyer, H. K. Samuelsen, Annette Rapp, Hans Tore Cardenas, P. Water masses constrain the distribution of deep-sea sponges in the North Atlantic Ocean and Nordic Seas |
author_facet |
Roberts, E. M. Bowers, D. G. Meyer, H. K. Samuelsen, Annette Rapp, Hans Tore Cardenas, P. |
author_sort |
Roberts, E. M. |
title |
Water masses constrain the distribution of deep-sea sponges in the North Atlantic Ocean and Nordic Seas |
title_short |
Water masses constrain the distribution of deep-sea sponges in the North Atlantic Ocean and Nordic Seas |
title_full |
Water masses constrain the distribution of deep-sea sponges in the North Atlantic Ocean and Nordic Seas |
title_fullStr |
Water masses constrain the distribution of deep-sea sponges in the North Atlantic Ocean and Nordic Seas |
title_full_unstemmed |
Water masses constrain the distribution of deep-sea sponges in the North Atlantic Ocean and Nordic Seas |
title_sort |
water masses constrain the distribution of deep-sea sponges in the north atlantic ocean and nordic seas |
publisher |
Inter-Research |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2761685 https://doi.org/10.3354/meps13570 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Nordic Seas North Atlantic Northeast Atlantic |
genre_facet |
Arctic Nordic Seas North Atlantic Northeast Atlantic |
op_source |
Marine Ecology Progress Series 75-96 659 |
op_relation |
urn:issn:0171-8630 https://hdl.handle.net/11250/2761685 https://doi.org/10.3354/meps13570 cristin:1889192 Marine Ecology Progress Series. 2021, 659, 75-96. |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright the authors 2021 |
op_doi |
https://doi.org/10.3354/meps13570 |
container_title |
Marine Ecology Progress Series |
container_volume |
659 |
container_start_page |
75 |
op_container_end_page |
96 |
_version_ |
1766331923467075584 |