Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean)
In the Antarctic seas, where hard substrates are scarce, the presence of secondary bio-substrates formed by calcareous organisms is an essential condition to increase the epibiosis and therefore the diversity of sessile benthic fauna. The aggregations of stylasterid hydrozoa, with their branched car...
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Online Access: | http://hdl.handle.net/11567/1078604 https://doi.org/10.1007/s00300-022-03023-6 |
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ftunivgenova:oai:iris.unige.it:11567/1078604 2024-04-21T07:50:50+00:00 Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean) Costa G. Bavestrello G. Canese S. Canessa M. Mazzoli C. Montagna P. Puce S. Schiaparelli S. Bertolino M. Costa, G. Bavestrello, G. Canese, S. Canessa, M. Mazzoli, C. Montagna, P. Puce, S. Schiaparelli, S. Bertolino, M. 2022 ELETTRONICO http://hdl.handle.net/11567/1078604 https://doi.org/10.1007/s00300-022-03023-6 eng eng Springer Nature info:eu-repo/semantics/altIdentifier/wos/WOS:000761310000001 volume:45 firstpage:703 lastpage:718 numberofpages:16 journal:POLAR BIOLOGY http://hdl.handle.net/11567/1078604 doi:10.1007/s00300-022-03023-6 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85125259529 info:eu-repo/semantics/openAccess Antarctic Ocean New specie Porifera Ross Sea Stylasteridae Thanatocoenosis info:eu-repo/semantics/article 2022 ftunivgenova https://doi.org/10.1007/s00300-022-03023-6 2024-03-28T01:20:53Z In the Antarctic seas, where hard substrates are scarce, the presence of secondary bio-substrates formed by calcareous organisms is an essential condition to increase the epibiosis and therefore the diversity of sessile benthic fauna. The aggregations of stylasterid hydrozoa, with their branched carbonate structures, are an example of a secondary habitat defined as a ‘deep marine animal forest’. The three-dimensional habitat made by these corals supports a high biodiversity of associated organisms, usually invertebrates. Recently, deep remotely operated vehicle (ROV) exploration of the Iselin Bank and the Hallett Ridge (Ross Sea, Antarctica) documented wide areas characterised by large thanatocoenosis of stylasterid skeletons lying on flat muddy substrates, with scattered living colonies generally made of few short branches. In our study, sponges associated with 54 dead colonies of two stylasterid species recorded in these areas were investigated. The analysis led to the discovery of a remarkable number of specimens (127) ascribed to 38 sponge species (31 encrusting and 7 massive). Two of these sponges, Asbestopluma(Asbetopluma)sinuosa and Lissodendoryx(Ectyodoryx)inferiolabiatae, are new. In light of the present data, we can assume that, in Antarctica, stylasterid skeletal remains, due to their three-dimensional structure, play an important role in maintaining sponge biodiversity. This is also due to the ability of sponge specie to produce miniaturised specimens able to colonise these peculiar substrata. Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Antarctica Ross Sea Southern Ocean Università degli Studi di Genova: CINECA IRIS Polar Biology 45 4 703 718 |
institution |
Open Polar |
collection |
Università degli Studi di Genova: CINECA IRIS |
op_collection_id |
ftunivgenova |
language |
English |
topic |
Antarctic Ocean New specie Porifera Ross Sea Stylasteridae Thanatocoenosis |
spellingShingle |
Antarctic Ocean New specie Porifera Ross Sea Stylasteridae Thanatocoenosis Costa G. Bavestrello G. Canese S. Canessa M. Mazzoli C. Montagna P. Puce S. Schiaparelli S. Bertolino M. Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean) |
topic_facet |
Antarctic Ocean New specie Porifera Ross Sea Stylasteridae Thanatocoenosis |
description |
In the Antarctic seas, where hard substrates are scarce, the presence of secondary bio-substrates formed by calcareous organisms is an essential condition to increase the epibiosis and therefore the diversity of sessile benthic fauna. The aggregations of stylasterid hydrozoa, with their branched carbonate structures, are an example of a secondary habitat defined as a ‘deep marine animal forest’. The three-dimensional habitat made by these corals supports a high biodiversity of associated organisms, usually invertebrates. Recently, deep remotely operated vehicle (ROV) exploration of the Iselin Bank and the Hallett Ridge (Ross Sea, Antarctica) documented wide areas characterised by large thanatocoenosis of stylasterid skeletons lying on flat muddy substrates, with scattered living colonies generally made of few short branches. In our study, sponges associated with 54 dead colonies of two stylasterid species recorded in these areas were investigated. The analysis led to the discovery of a remarkable number of specimens (127) ascribed to 38 sponge species (31 encrusting and 7 massive). Two of these sponges, Asbestopluma(Asbetopluma)sinuosa and Lissodendoryx(Ectyodoryx)inferiolabiatae, are new. In light of the present data, we can assume that, in Antarctica, stylasterid skeletal remains, due to their three-dimensional structure, play an important role in maintaining sponge biodiversity. This is also due to the ability of sponge specie to produce miniaturised specimens able to colonise these peculiar substrata. |
author2 |
Costa, G. Bavestrello, G. Canese, S. Canessa, M. Mazzoli, C. Montagna, P. Puce, S. Schiaparelli, S. Bertolino, M. |
format |
Article in Journal/Newspaper |
author |
Costa G. Bavestrello G. Canese S. Canessa M. Mazzoli C. Montagna P. Puce S. Schiaparelli S. Bertolino M. |
author_facet |
Costa G. Bavestrello G. Canese S. Canessa M. Mazzoli C. Montagna P. Puce S. Schiaparelli S. Bertolino M. |
author_sort |
Costa G. |
title |
Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean) |
title_short |
Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean) |
title_full |
Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean) |
title_fullStr |
Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean) |
title_full_unstemmed |
Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean) |
title_sort |
sponges associated with stylasterid thanatocoenosis (cnidaria, hydrozoa) from the deep ross sea (southern ocean) |
publisher |
Springer Nature |
publishDate |
2022 |
url |
http://hdl.handle.net/11567/1078604 https://doi.org/10.1007/s00300-022-03023-6 |
genre |
Antarc* Antarctic Antarctic Ocean Antarctica Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean Antarctica Ross Sea Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000761310000001 volume:45 firstpage:703 lastpage:718 numberofpages:16 journal:POLAR BIOLOGY http://hdl.handle.net/11567/1078604 doi:10.1007/s00300-022-03023-6 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85125259529 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00300-022-03023-6 |
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45 |
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