Evidence for a marine molluscan fauna beneath ice shelves in the Lazarev and Weddell seas, Antarctica, from shells of Adamussium colbecki and Nacella (Patinigera) cf. concinna
Only one living specimen of Adamussium colbecki was found amongst the shells of this species collected in the Lazarev and Weddell Seas, and those of the limpet Nacella cf. concinna from three locations in the southern Weddell Sea. In order to explain this peculiarity four hypotheses are discussed. T...
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Language: | English |
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Cambridge University Press (CUP)
1994
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Online Access: | http://dx.doi.org/10.1017/s0954102094000040 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102094000040 |
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crcambridgeupr:10.1017/s0954102094000040 2024-03-03T08:38:44+00:00 Evidence for a marine molluscan fauna beneath ice shelves in the Lazarev and Weddell seas, Antarctica, from shells of Adamussium colbecki and Nacella (Patinigera) cf. concinna Hain, Stefan Melles, Martin 1994 http://dx.doi.org/10.1017/s0954102094000040 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102094000040 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 6, issue 1, page 29-36 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1994 crcambridgeupr https://doi.org/10.1017/s0954102094000040 2024-02-08T08:35:21Z Only one living specimen of Adamussium colbecki was found amongst the shells of this species collected in the Lazarev and Weddell Seas, and those of the limpet Nacella cf. concinna from three locations in the southern Weddell Sea. In order to explain this peculiarity four hypotheses are discussed. The possibility that the shells belong to living deep-water populations is in contradiction to the high number of trawl samples taken in the area and the abundance of empty shell material. 14 C dates show the shells are recent, thus excluding the possibility that the shells belong to autochthonous fossil populations exposed on the seafloor. Lateral transport of living specimens or shells over long distances by marine currents or by ice is unlikely due to their state of preservation and the water circulation pattern. The most likely explanation is that the shells are allochthonous, transported only over short distances by marine currents from adjacent areas underneath floating ice shelves where both species have living populations. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica Ice Shelves Weddell Sea Cambridge University Press Weddell Sea Weddell Lazarev ENVELOPE(12.917,12.917,-69.967,-69.967) Nacella ENVELOPE(-60.783,-60.783,-62.467,-62.467) Antarctic Science 6 1 29 36 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Hain, Stefan Melles, Martin Evidence for a marine molluscan fauna beneath ice shelves in the Lazarev and Weddell seas, Antarctica, from shells of Adamussium colbecki and Nacella (Patinigera) cf. concinna |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Only one living specimen of Adamussium colbecki was found amongst the shells of this species collected in the Lazarev and Weddell Seas, and those of the limpet Nacella cf. concinna from three locations in the southern Weddell Sea. In order to explain this peculiarity four hypotheses are discussed. The possibility that the shells belong to living deep-water populations is in contradiction to the high number of trawl samples taken in the area and the abundance of empty shell material. 14 C dates show the shells are recent, thus excluding the possibility that the shells belong to autochthonous fossil populations exposed on the seafloor. Lateral transport of living specimens or shells over long distances by marine currents or by ice is unlikely due to their state of preservation and the water circulation pattern. The most likely explanation is that the shells are allochthonous, transported only over short distances by marine currents from adjacent areas underneath floating ice shelves where both species have living populations. |
format |
Article in Journal/Newspaper |
author |
Hain, Stefan Melles, Martin |
author_facet |
Hain, Stefan Melles, Martin |
author_sort |
Hain, Stefan |
title |
Evidence for a marine molluscan fauna beneath ice shelves in the Lazarev and Weddell seas, Antarctica, from shells of Adamussium colbecki and Nacella (Patinigera) cf. concinna |
title_short |
Evidence for a marine molluscan fauna beneath ice shelves in the Lazarev and Weddell seas, Antarctica, from shells of Adamussium colbecki and Nacella (Patinigera) cf. concinna |
title_full |
Evidence for a marine molluscan fauna beneath ice shelves in the Lazarev and Weddell seas, Antarctica, from shells of Adamussium colbecki and Nacella (Patinigera) cf. concinna |
title_fullStr |
Evidence for a marine molluscan fauna beneath ice shelves in the Lazarev and Weddell seas, Antarctica, from shells of Adamussium colbecki and Nacella (Patinigera) cf. concinna |
title_full_unstemmed |
Evidence for a marine molluscan fauna beneath ice shelves in the Lazarev and Weddell seas, Antarctica, from shells of Adamussium colbecki and Nacella (Patinigera) cf. concinna |
title_sort |
evidence for a marine molluscan fauna beneath ice shelves in the lazarev and weddell seas, antarctica, from shells of adamussium colbecki and nacella (patinigera) cf. concinna |
publisher |
Cambridge University Press (CUP) |
publishDate |
1994 |
url |
http://dx.doi.org/10.1017/s0954102094000040 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102094000040 |
long_lat |
ENVELOPE(12.917,12.917,-69.967,-69.967) ENVELOPE(-60.783,-60.783,-62.467,-62.467) |
geographic |
Weddell Sea Weddell Lazarev Nacella |
geographic_facet |
Weddell Sea Weddell Lazarev Nacella |
genre |
Antarc* Antarctic Science Antarctica Ice Shelves Weddell Sea |
genre_facet |
Antarc* Antarctic Science Antarctica Ice Shelves Weddell Sea |
op_source |
Antarctic Science volume 6, issue 1, page 29-36 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102094000040 |
container_title |
Antarctic Science |
container_volume |
6 |
container_issue |
1 |
container_start_page |
29 |
op_container_end_page |
36 |
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1792507178174644224 |