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Bone-eating worms from the Antarctic: the contrasting fate of whale and wood remains on the Southern Ocean seafloor

We report the results from the first experimental study of the fate of whale and wood remains on the Antarctic seafloor. Using a baited free-vehicle lander design, we show that whale-falls in the Antarctic are heavily infested by at least two new species of bone-eating worm, Osedax antarcticus sp. n...

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Autores principales: Glover, Adrian G., Wiklund, Helena, Taboada, Sergio, Avila, Conxita, Cristobo, Javier, Smith, Craig R., Kemp, Kirsty M., Jamieson, Alan J., Dahlgren, Thomas G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3757972/
https://www.ncbi.nlm.nih.gov/pubmed/23945684
http://dx.doi.org/10.1098/rspb.2013.1390
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author Glover, Adrian G.
Wiklund, Helena
Taboada, Sergio
Avila, Conxita
Cristobo, Javier
Smith, Craig R.
Kemp, Kirsty M.
Jamieson, Alan J.
Dahlgren, Thomas G.
author_facet Glover, Adrian G.
Wiklund, Helena
Taboada, Sergio
Avila, Conxita
Cristobo, Javier
Smith, Craig R.
Kemp, Kirsty M.
Jamieson, Alan J.
Dahlgren, Thomas G.
author_sort Glover, Adrian G.
collection PubMed
description We report the results from the first experimental study of the fate of whale and wood remains on the Antarctic seafloor. Using a baited free-vehicle lander design, we show that whale-falls in the Antarctic are heavily infested by at least two new species of bone-eating worm, Osedax antarcticus sp. nov. and Osedax deceptionensis sp. nov. In stark contrast, wood remains are remarkably well preserved with the absence of typical wood-eating fauna such as the xylophagainid bivalves. The combined whale-fall and wood-fall experiment provides support to the hypothesis that the Antarctic circumpolar current is a barrier to the larvae of deep-water species that are broadly distributed in other ocean basins. Since humans first started exploring the Antarctic, wood has been deposited on the seafloor in the form of shipwrecks and waste; our data suggest that this anthropogenic wood may be exceptionally well preserved. Alongside the new species descriptions, we conducted a comprehensive phylogenetic analyses of Osedax, suggesting the clade is most closely related to the frenulate tubeworms, not the vestimentiferans as previous reported.
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spelling pubmed-37579722013-10-07 Bone-eating worms from the Antarctic: the contrasting fate of whale and wood remains on the Southern Ocean seafloor Glover, Adrian G. Wiklund, Helena Taboada, Sergio Avila, Conxita Cristobo, Javier Smith, Craig R. Kemp, Kirsty M. Jamieson, Alan J. Dahlgren, Thomas G. Proc Biol Sci Research Articles We report the results from the first experimental study of the fate of whale and wood remains on the Antarctic seafloor. Using a baited free-vehicle lander design, we show that whale-falls in the Antarctic are heavily infested by at least two new species of bone-eating worm, Osedax antarcticus sp. nov. and Osedax deceptionensis sp. nov. In stark contrast, wood remains are remarkably well preserved with the absence of typical wood-eating fauna such as the xylophagainid bivalves. The combined whale-fall and wood-fall experiment provides support to the hypothesis that the Antarctic circumpolar current is a barrier to the larvae of deep-water species that are broadly distributed in other ocean basins. Since humans first started exploring the Antarctic, wood has been deposited on the seafloor in the form of shipwrecks and waste; our data suggest that this anthropogenic wood may be exceptionally well preserved. Alongside the new species descriptions, we conducted a comprehensive phylogenetic analyses of Osedax, suggesting the clade is most closely related to the frenulate tubeworms, not the vestimentiferans as previous reported. The Royal Society 2013-10-07 /pmc/articles/PMC3757972/ /pubmed/23945684 http://dx.doi.org/10.1098/rspb.2013.1390 Text en http://creativecommons.org/licenses/by/3.0/ © 2013 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, provided the original author and source are credited.
spellingShingle Research Articles
Glover, Adrian G.
Wiklund, Helena
Taboada, Sergio
Avila, Conxita
Cristobo, Javier
Smith, Craig R.
Kemp, Kirsty M.
Jamieson, Alan J.
Dahlgren, Thomas G.
Bone-eating worms from the Antarctic: the contrasting fate of whale and wood remains on the Southern Ocean seafloor
title Bone-eating worms from the Antarctic: the contrasting fate of whale and wood remains on the Southern Ocean seafloor
title_full Bone-eating worms from the Antarctic: the contrasting fate of whale and wood remains on the Southern Ocean seafloor
title_fullStr Bone-eating worms from the Antarctic: the contrasting fate of whale and wood remains on the Southern Ocean seafloor
title_full_unstemmed Bone-eating worms from the Antarctic: the contrasting fate of whale and wood remains on the Southern Ocean seafloor
title_short Bone-eating worms from the Antarctic: the contrasting fate of whale and wood remains on the Southern Ocean seafloor
title_sort bone-eating worms from the antarctic: the contrasting fate of whale and wood remains on the southern ocean seafloor
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3757972/
https://www.ncbi.nlm.nih.gov/pubmed/23945684
http://dx.doi.org/10.1098/rspb.2013.1390
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