Amphipod diversity and metabolomics of the Antarctic sponge Dendrilla antarctica
Abstract The western Antarctic Peninsula harbours a diverse benthic marine community where dense canopies of macroalgae can dominate the shallow subtidal zone (0–40 m or greater). In the lower portion of this range (below 25–35 m depending on topography), invertebrates such as sponges and echinoderm...
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crcambridgeupr:10.1017/s0954102022000268 2024-06-23T07:47:44+00:00 Amphipod diversity and metabolomics of the Antarctic sponge Dendrilla antarctica von Salm, Jacqueline L. Witowski, Christopher G. Amsler, Margaret O. Amsler, Charles D. McClintock, James B. Baker, Bill J. Division of Antarctic Sciences Division of Antarctic Sciences Division of Antarctic Sciences Division of Antarctic Sciences 2022 http://dx.doi.org/10.1017/s0954102022000268 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102022000268 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Antarctic Science volume 34, issue 5, page 349-360 ISSN 0954-1020 1365-2079 journal-article 2022 crcambridgeupr https://doi.org/10.1017/s0954102022000268 2024-06-12T04:02:36Z Abstract The western Antarctic Peninsula harbours a diverse benthic marine community where dense canopies of macroalgae can dominate the shallow subtidal zone (0–40 m or greater). In the lower portion of this range (below 25–35 m depending on topography), invertebrates such as sponges and echinoderms can be found in greater abundance due to reduced competition for space from the algal species. Dendrilla antarctica (previously Dendrilla membranosa ) is a common demosponge that thrives in both communities and is known for producing diterpene secondary metabolites as a defence against sympatric sea star and amphipod predators. Omnivorous mesograzers such as amphipods inhabit both communities; however, they are in greatest abundance within the macroalgal canopy. Due to the differences between habitats, it was hypothesized that specific amphipod species not susceptible to the defensive metabolites of D. antarctica would take refuge from predators in the chemically defended sponge. Analysis of the metabolome and amphipod communities from sponges in both habitats found correlations of metabolic profile to both abundance and habitat. These studies serve to inform our understanding of the complex ecosystem of the Antarctic benthos that stands to be dramatically altered by the rapidly changing climate in the years to come. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Cambridge University Press Antarctic Antarctic Peninsula The Antarctic Antarctic Science 1 12 |
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Cambridge University Press |
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English |
description |
Abstract The western Antarctic Peninsula harbours a diverse benthic marine community where dense canopies of macroalgae can dominate the shallow subtidal zone (0–40 m or greater). In the lower portion of this range (below 25–35 m depending on topography), invertebrates such as sponges and echinoderms can be found in greater abundance due to reduced competition for space from the algal species. Dendrilla antarctica (previously Dendrilla membranosa ) is a common demosponge that thrives in both communities and is known for producing diterpene secondary metabolites as a defence against sympatric sea star and amphipod predators. Omnivorous mesograzers such as amphipods inhabit both communities; however, they are in greatest abundance within the macroalgal canopy. Due to the differences between habitats, it was hypothesized that specific amphipod species not susceptible to the defensive metabolites of D. antarctica would take refuge from predators in the chemically defended sponge. Analysis of the metabolome and amphipod communities from sponges in both habitats found correlations of metabolic profile to both abundance and habitat. These studies serve to inform our understanding of the complex ecosystem of the Antarctic benthos that stands to be dramatically altered by the rapidly changing climate in the years to come. |
author2 |
Division of Antarctic Sciences Division of Antarctic Sciences Division of Antarctic Sciences Division of Antarctic Sciences |
format |
Article in Journal/Newspaper |
author |
von Salm, Jacqueline L. Witowski, Christopher G. Amsler, Margaret O. Amsler, Charles D. McClintock, James B. Baker, Bill J. |
spellingShingle |
von Salm, Jacqueline L. Witowski, Christopher G. Amsler, Margaret O. Amsler, Charles D. McClintock, James B. Baker, Bill J. Amphipod diversity and metabolomics of the Antarctic sponge Dendrilla antarctica |
author_facet |
von Salm, Jacqueline L. Witowski, Christopher G. Amsler, Margaret O. Amsler, Charles D. McClintock, James B. Baker, Bill J. |
author_sort |
von Salm, Jacqueline L. |
title |
Amphipod diversity and metabolomics of the Antarctic sponge Dendrilla antarctica |
title_short |
Amphipod diversity and metabolomics of the Antarctic sponge Dendrilla antarctica |
title_full |
Amphipod diversity and metabolomics of the Antarctic sponge Dendrilla antarctica |
title_fullStr |
Amphipod diversity and metabolomics of the Antarctic sponge Dendrilla antarctica |
title_full_unstemmed |
Amphipod diversity and metabolomics of the Antarctic sponge Dendrilla antarctica |
title_sort |
amphipod diversity and metabolomics of the antarctic sponge dendrilla antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1017/s0954102022000268 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102022000268 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica |
op_source |
Antarctic Science volume 34, issue 5, page 349-360 ISSN 0954-1020 1365-2079 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/s0954102022000268 |
container_title |
Antarctic Science |
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1 |
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12 |
_version_ |
1802651896572280832 |