Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae)
Glass sponges (Porifera, Hexactinellida) are conspicuous habitat-forming members of many Antarctic shelf communities. Despite their ecological importance, in-situ species identification remains problematic as it is traditionally based on micro- scopic analysis of spicules. External morphological fea...
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Online Access: | https://epic.awi.de/id/eprint/50965/ https://epic.awi.de/id/eprint/50965/1/2020_Federwisch_et_al.pdf https://doi.org/10.1007/s00300-019-02612-2 https://hdl.handle.net/10013/epic.a4d78342-0c03-41c5-b54c-9144a63bd67b |
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ftawi:oai:epic.awi.de:50965 2024-09-15T17:42:38+00:00 Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae) Federwisch, Luisa Janussen, Dorte Richter, Claudio 2020 application/pdf https://epic.awi.de/id/eprint/50965/ https://epic.awi.de/id/eprint/50965/1/2020_Federwisch_et_al.pdf https://doi.org/10.1007/s00300-019-02612-2 https://hdl.handle.net/10013/epic.a4d78342-0c03-41c5-b54c-9144a63bd67b unknown https://epic.awi.de/id/eprint/50965/1/2020_Federwisch_et_al.pdf Federwisch, L. orcid:0000-0002-4815-475X , Janussen, D. and Richter, C. orcid:0000-0002-8182-6896 (2020) Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae) , Polar Biology, 43 (2), pp. 91-110 . doi:10.1007/s00300-019-02612-2 <https://doi.org/10.1007/s00300-019-02612-2> , hdl:10013/epic.a4d78342-0c03-41c5-b54c-9144a63bd67b EPIC3Polar Biology, 43(2), pp. 91-110, ISSN: 0722-4060 Article isiRev 2020 ftawi https://doi.org/10.1007/s00300-019-02612-2 2024-06-24T04:23:24Z Glass sponges (Porifera, Hexactinellida) are conspicuous habitat-forming members of many Antarctic shelf communities. Despite their ecological importance, in-situ species identification remains problematic as it is traditionally based on micro- scopic analysis of spicules. External morphological features, in contrast, have largely been disregarded, so that different species have been mislabeled or lumped together when their identification was based on image material. In this paper, we provide a straight-forward guideline for in-situ identification of the most common rossellid sponges of the Antarctic shelf based on macroscopic characteristics. To determine diagnostic macroscopic characteristics of Anoxycalyx (Scolymastra) joubini and eight Rossella species, we combined examination of trawl-collected specimens, previous species descriptions and in-situ image material from the eastern Weddell Sea. Our study revealed that the smooth-walled species A. joubini, R. nuda and R. vanhoeffeni, previously often mixed up, can be distinguished by the form of their basal spicule tuft, their surface structure and their overall body form. The previously synonymized species R. racovitzae and R. podagrosa can be distinguished by their markedly different habitus. Based on our results, the so-called ‘R. racovitzae budding type’ in fact refers to R. podagrosa which occurs regularly in the eastern Weddell Sea. The species R. villosa, R. levis, R. fibulata and R. antarctica can be distinguished by the appearance of their conules, protruding spicules and overall body form. We conclude that macroscopic characteristics are helpful means for identification of Antarctic rossellid sponge species. This approach enables species-specific quantitative studies of Antarctic glass sponge grounds based on increasingly used non-invasive imaging technology. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Biology Weddell Sea Glass sponges Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Polar Biology 43 2 91 110 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Glass sponges (Porifera, Hexactinellida) are conspicuous habitat-forming members of many Antarctic shelf communities. Despite their ecological importance, in-situ species identification remains problematic as it is traditionally based on micro- scopic analysis of spicules. External morphological features, in contrast, have largely been disregarded, so that different species have been mislabeled or lumped together when their identification was based on image material. In this paper, we provide a straight-forward guideline for in-situ identification of the most common rossellid sponges of the Antarctic shelf based on macroscopic characteristics. To determine diagnostic macroscopic characteristics of Anoxycalyx (Scolymastra) joubini and eight Rossella species, we combined examination of trawl-collected specimens, previous species descriptions and in-situ image material from the eastern Weddell Sea. Our study revealed that the smooth-walled species A. joubini, R. nuda and R. vanhoeffeni, previously often mixed up, can be distinguished by the form of their basal spicule tuft, their surface structure and their overall body form. The previously synonymized species R. racovitzae and R. podagrosa can be distinguished by their markedly different habitus. Based on our results, the so-called ‘R. racovitzae budding type’ in fact refers to R. podagrosa which occurs regularly in the eastern Weddell Sea. The species R. villosa, R. levis, R. fibulata and R. antarctica can be distinguished by the appearance of their conules, protruding spicules and overall body form. We conclude that macroscopic characteristics are helpful means for identification of Antarctic rossellid sponge species. This approach enables species-specific quantitative studies of Antarctic glass sponge grounds based on increasingly used non-invasive imaging technology. |
format |
Article in Journal/Newspaper |
author |
Federwisch, Luisa Janussen, Dorte Richter, Claudio |
spellingShingle |
Federwisch, Luisa Janussen, Dorte Richter, Claudio Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae) |
author_facet |
Federwisch, Luisa Janussen, Dorte Richter, Claudio |
author_sort |
Federwisch, Luisa |
title |
Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae) |
title_short |
Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae) |
title_full |
Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae) |
title_fullStr |
Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae) |
title_full_unstemmed |
Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae) |
title_sort |
macroscopic characteristics facilitate identification of common antarctic glass sponges (porifera, hexactinellida, rossellidae) |
publishDate |
2020 |
url |
https://epic.awi.de/id/eprint/50965/ https://epic.awi.de/id/eprint/50965/1/2020_Federwisch_et_al.pdf https://doi.org/10.1007/s00300-019-02612-2 https://hdl.handle.net/10013/epic.a4d78342-0c03-41c5-b54c-9144a63bd67b |
genre |
Antarc* Antarctic Antarctica Polar Biology Weddell Sea Glass sponges |
genre_facet |
Antarc* Antarctic Antarctica Polar Biology Weddell Sea Glass sponges |
op_source |
EPIC3Polar Biology, 43(2), pp. 91-110, ISSN: 0722-4060 |
op_relation |
https://epic.awi.de/id/eprint/50965/1/2020_Federwisch_et_al.pdf Federwisch, L. orcid:0000-0002-4815-475X , Janussen, D. and Richter, C. orcid:0000-0002-8182-6896 (2020) Macroscopic characteristics facilitate identification of common Antarctic glass sponges (Porifera, Hexactinellida, Rossellidae) , Polar Biology, 43 (2), pp. 91-110 . doi:10.1007/s00300-019-02612-2 <https://doi.org/10.1007/s00300-019-02612-2> , hdl:10013/epic.a4d78342-0c03-41c5-b54c-9144a63bd67b |
op_doi |
https://doi.org/10.1007/s00300-019-02612-2 |
container_title |
Polar Biology |
container_volume |
43 |
container_issue |
2 |
container_start_page |
91 |
op_container_end_page |
110 |
_version_ |
1810489279857557504 |