Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean)
Until the early 1980s, the composition and distribution of the asteroid (starfish), ophiuroid (brittle star) and holothurian (sea cucumber) bottom fauna of the southeastern Weddell Sea was virtually unknown. This southernmost part of the Atlantic sector of the Southern Ocean is a typical high-latitu...
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Pensoft Publishers
2014
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Online Access: | https://oceanrep.geomar.de/id/eprint/28014/ https://oceanrep.geomar.de/id/eprint/28014/1/2014_Gutt-etal-Asteroids_ZK-434_article_3989.pdf https://doi.org/10.3897/zookeys.434.7622 |
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ftoceanrep:oai:oceanrep.geomar.de:28014 2023-05-15T13:48:22+02:00 Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean) Gutt, Julian Piepenburg, Dieter Voß, Joachim 2014 text https://oceanrep.geomar.de/id/eprint/28014/ https://oceanrep.geomar.de/id/eprint/28014/1/2014_Gutt-etal-Asteroids_ZK-434_article_3989.pdf https://doi.org/10.3897/zookeys.434.7622 en eng Pensoft Publishers PubMed Central https://oceanrep.geomar.de/id/eprint/28014/1/2014_Gutt-etal-Asteroids_ZK-434_article_3989.pdf Gutt, J., Piepenburg, D. and Voß, J. (2014) Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean). ZooKeys, 434 . pp. 1-15. DOI 10.3897/zookeys.434.7622 <https://doi.org/10.3897/zookeys.434.7622>. doi:10.3897/zookeys.434.7622 cc_by_4.0 Article PeerReviewed 2014 ftoceanrep https://doi.org/10.3897/zookeys.434.7622 2023-04-07T15:18:21Z Until the early 1980s, the composition and distribution of the asteroid (starfish), ophiuroid (brittle star) and holothurian (sea cucumber) bottom fauna of the southeastern Weddell Sea was virtually unknown. This southernmost part of the Atlantic sector of the Southern Ocean is a typical high-latitude Antarctic region located in the circumpolar permanent pack-ice zone. It became accessible for large-scale scientific surveys only through the availability of modern ice-breaking research vessels, such as the German RV “Polarstern”. Here, we describe a dataset of the faunal composition and abundance of starfish, brittle star and sea cucumber assemblages in this area, based on collections from trawl catches carried out during three “Polarstern” cruises in 1983, 1984 and 1985. The set comprises a total of 4, 509 records of abundances of 35 asteroid species (with a total of 2, 089 specimens) and 38 ophiuroid species (with a total of 18, 484 specimens) from 34 stations, as well as of 66 holothurian species (with a total of 20, 918 specimens) from 59 stations including zero-abundances (absences). A synthesizing zoogeographical community analysis confirms the presence of three distinct assemblages of asteroids, ophiuroids, and holothurians with highest species richness on the eastern shelf. Overall, starfishes, brittle stars and sea cucumbers were present at all sites investigated in the study area but composition and abundance of asterozoan (asteroids and ophiuroids together) and holothurian fauna varied considerably. A synthesizing zoogeographical community analysis confirms the presence of three distinct assemblages of asteroids, ophiuroids, and holothurians with highest species richness on the eastern shelf. In the case of asterozoans, water depth and latitude seemed to be the most important drivers of assemblage distribution and composition. One of the holothurian assemblages was part of the rich macrozoobenthic community dominated by a diverse and abundant epifauna, mainly sponges and gorgonians. Another one was ... Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Weddell Sea OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic Southern Ocean Weddell Weddell Sea ZooKeys 434 1 15 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Until the early 1980s, the composition and distribution of the asteroid (starfish), ophiuroid (brittle star) and holothurian (sea cucumber) bottom fauna of the southeastern Weddell Sea was virtually unknown. This southernmost part of the Atlantic sector of the Southern Ocean is a typical high-latitude Antarctic region located in the circumpolar permanent pack-ice zone. It became accessible for large-scale scientific surveys only through the availability of modern ice-breaking research vessels, such as the German RV “Polarstern”. Here, we describe a dataset of the faunal composition and abundance of starfish, brittle star and sea cucumber assemblages in this area, based on collections from trawl catches carried out during three “Polarstern” cruises in 1983, 1984 and 1985. The set comprises a total of 4, 509 records of abundances of 35 asteroid species (with a total of 2, 089 specimens) and 38 ophiuroid species (with a total of 18, 484 specimens) from 34 stations, as well as of 66 holothurian species (with a total of 20, 918 specimens) from 59 stations including zero-abundances (absences). A synthesizing zoogeographical community analysis confirms the presence of three distinct assemblages of asteroids, ophiuroids, and holothurians with highest species richness on the eastern shelf. Overall, starfishes, brittle stars and sea cucumbers were present at all sites investigated in the study area but composition and abundance of asterozoan (asteroids and ophiuroids together) and holothurian fauna varied considerably. A synthesizing zoogeographical community analysis confirms the presence of three distinct assemblages of asteroids, ophiuroids, and holothurians with highest species richness on the eastern shelf. In the case of asterozoans, water depth and latitude seemed to be the most important drivers of assemblage distribution and composition. One of the holothurian assemblages was part of the rich macrozoobenthic community dominated by a diverse and abundant epifauna, mainly sponges and gorgonians. Another one was ... |
format |
Article in Journal/Newspaper |
author |
Gutt, Julian Piepenburg, Dieter Voß, Joachim |
spellingShingle |
Gutt, Julian Piepenburg, Dieter Voß, Joachim Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean) |
author_facet |
Gutt, Julian Piepenburg, Dieter Voß, Joachim |
author_sort |
Gutt, Julian |
title |
Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean) |
title_short |
Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean) |
title_full |
Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean) |
title_fullStr |
Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean) |
title_full_unstemmed |
Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean) |
title_sort |
asteroids, ophiuroids and holothurians from the southeastern weddell sea (southern ocean) |
publisher |
Pensoft Publishers |
publishDate |
2014 |
url |
https://oceanrep.geomar.de/id/eprint/28014/ https://oceanrep.geomar.de/id/eprint/28014/1/2014_Gutt-etal-Asteroids_ZK-434_article_3989.pdf https://doi.org/10.3897/zookeys.434.7622 |
geographic |
Antarctic Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Southern Ocean Weddell Sea |
op_relation |
https://oceanrep.geomar.de/id/eprint/28014/1/2014_Gutt-etal-Asteroids_ZK-434_article_3989.pdf Gutt, J., Piepenburg, D. and Voß, J. (2014) Asteroids, ophiuroids and holothurians from the southeastern Weddell Sea (Southern Ocean). ZooKeys, 434 . pp. 1-15. DOI 10.3897/zookeys.434.7622 <https://doi.org/10.3897/zookeys.434.7622>. doi:10.3897/zookeys.434.7622 |
op_rights |
cc_by_4.0 |
op_doi |
https://doi.org/10.3897/zookeys.434.7622 |
container_title |
ZooKeys |
container_volume |
434 |
container_start_page |
1 |
op_container_end_page |
15 |
_version_ |
1766249173896658944 |