Recruitment, growth and mortality of an Antarctic hexactinellid sponge, Anoxycalyx joubini.
Polar ecosystems are sensitive to climate forcing, and we often lack baselines to evaluate changes. Here we report a nearly 50-year study in which a sudden shift in the population dynamics of an ecologically important, structure-forming hexactinellid sponge, Anoxycalyx joubini was observed. This is...
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ftdoajarticles:oai:doaj.org/article:b9167fcccd1045169bad9961a5933cd7 2023-05-15T14:01:12+02:00 Recruitment, growth and mortality of an Antarctic hexactinellid sponge, Anoxycalyx joubini. Paul K Dayton Stacy Kim Shannon C Jarrell John S Oliver Kamille Hammerstrom Jennifer L Fisher Kevin O'Connor Julie S Barber Gordon Robilliard James Barry Andrew R Thurber Kathy Conlan 2013-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0056939 https://doaj.org/article/b9167fcccd1045169bad9961a5933cd7 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3584113?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0056939 https://doaj.org/article/b9167fcccd1045169bad9961a5933cd7 PLoS ONE, Vol 8, Iss 2, p e56939 (2013) Medicine R Science Q article 2013 ftdoajarticles https://doi.org/10.1371/journal.pone.0056939 2022-12-31T01:38:10Z Polar ecosystems are sensitive to climate forcing, and we often lack baselines to evaluate changes. Here we report a nearly 50-year study in which a sudden shift in the population dynamics of an ecologically important, structure-forming hexactinellid sponge, Anoxycalyx joubini was observed. This is the largest Antarctic sponge, with individuals growing over two meters tall. In order to investigate life history characteristics of Antarctic marine invertebrates, artificial substrata were deployed at a number of sites in the southern portion of the Ross Sea between 1967 and 1975. Over a 22-year period, no growth or settlement was recorded for A. joubini on these substrata; however, in 2004 and 2010, A. joubini was observed to have settled and grown to large sizes on some but not all artificial substrata. This single settlement and growth event correlates with a region-wide shift in phytoplankton productivity driven by the calving of a massive iceberg. We also report almost complete mortality of large sponges followed over 40 years. Given our warming global climate, similar system-wide changes are expected in the future. Article in Journal/Newspaper Antarc* Antarctic Iceberg* Ross Sea Directory of Open Access Journals: DOAJ Articles Antarctic Ross Sea PLoS ONE 8 2 e56939 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Paul K Dayton Stacy Kim Shannon C Jarrell John S Oliver Kamille Hammerstrom Jennifer L Fisher Kevin O'Connor Julie S Barber Gordon Robilliard James Barry Andrew R Thurber Kathy Conlan Recruitment, growth and mortality of an Antarctic hexactinellid sponge, Anoxycalyx joubini. |
topic_facet |
Medicine R Science Q |
description |
Polar ecosystems are sensitive to climate forcing, and we often lack baselines to evaluate changes. Here we report a nearly 50-year study in which a sudden shift in the population dynamics of an ecologically important, structure-forming hexactinellid sponge, Anoxycalyx joubini was observed. This is the largest Antarctic sponge, with individuals growing over two meters tall. In order to investigate life history characteristics of Antarctic marine invertebrates, artificial substrata were deployed at a number of sites in the southern portion of the Ross Sea between 1967 and 1975. Over a 22-year period, no growth or settlement was recorded for A. joubini on these substrata; however, in 2004 and 2010, A. joubini was observed to have settled and grown to large sizes on some but not all artificial substrata. This single settlement and growth event correlates with a region-wide shift in phytoplankton productivity driven by the calving of a massive iceberg. We also report almost complete mortality of large sponges followed over 40 years. Given our warming global climate, similar system-wide changes are expected in the future. |
format |
Article in Journal/Newspaper |
author |
Paul K Dayton Stacy Kim Shannon C Jarrell John S Oliver Kamille Hammerstrom Jennifer L Fisher Kevin O'Connor Julie S Barber Gordon Robilliard James Barry Andrew R Thurber Kathy Conlan |
author_facet |
Paul K Dayton Stacy Kim Shannon C Jarrell John S Oliver Kamille Hammerstrom Jennifer L Fisher Kevin O'Connor Julie S Barber Gordon Robilliard James Barry Andrew R Thurber Kathy Conlan |
author_sort |
Paul K Dayton |
title |
Recruitment, growth and mortality of an Antarctic hexactinellid sponge, Anoxycalyx joubini. |
title_short |
Recruitment, growth and mortality of an Antarctic hexactinellid sponge, Anoxycalyx joubini. |
title_full |
Recruitment, growth and mortality of an Antarctic hexactinellid sponge, Anoxycalyx joubini. |
title_fullStr |
Recruitment, growth and mortality of an Antarctic hexactinellid sponge, Anoxycalyx joubini. |
title_full_unstemmed |
Recruitment, growth and mortality of an Antarctic hexactinellid sponge, Anoxycalyx joubini. |
title_sort |
recruitment, growth and mortality of an antarctic hexactinellid sponge, anoxycalyx joubini. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2013 |
url |
https://doi.org/10.1371/journal.pone.0056939 https://doaj.org/article/b9167fcccd1045169bad9961a5933cd7 |
geographic |
Antarctic Ross Sea |
geographic_facet |
Antarctic Ross Sea |
genre |
Antarc* Antarctic Iceberg* Ross Sea |
genre_facet |
Antarc* Antarctic Iceberg* Ross Sea |
op_source |
PLoS ONE, Vol 8, Iss 2, p e56939 (2013) |
op_relation |
http://europepmc.org/articles/PMC3584113?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0056939 https://doaj.org/article/b9167fcccd1045169bad9961a5933cd7 |
op_doi |
https://doi.org/10.1371/journal.pone.0056939 |
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PLoS ONE |
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8 |
container_issue |
2 |
container_start_page |
e56939 |
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