Is the Antarctic Ophryotrocha orensanzi (Annelida: Dorvilleidae) a circumpolar non-specialized opportunist?
The dorvilleid polychaete Ophryotrocha orensanzi is reported from the vicinity of Casey station, East Antarctica, an astounding range extension from its previous records in the South Shetland Islands to the opposite side of the Antarctic continent, suggesting that it is a circumpolar species. Geneti...
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ftdatacite:10.6084/m9.figshare.3848442 2023-05-15T13:52:19+02:00 Is the Antarctic Ophryotrocha orensanzi (Annelida: Dorvilleidae) a circumpolar non-specialized opportunist? Paxton, Hannelore Wiklund, Helena Alexander, Frances Taboada, Sergi 2016 https://dx.doi.org/10.6084/m9.figshare.3848442 https://tandf.figshare.com/articles/journal_contribution/Is_the_Antarctic_i_Ophryotrocha_orensanzi_i_Annelida_Dorvilleidae_a_circumpolar_non-specialized_opportunist_/3848442 unknown Taylor & Francis https://dx.doi.org/10.1080/14772000.2016.1218371 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Cancer Inorganic Chemistry FOS Chemical sciences 110309 Infectious Diseases FOS Health sciences Text article-journal Journal contribution ScholarlyArticle 2016 ftdatacite https://doi.org/10.6084/m9.figshare.3848442 https://doi.org/10.1080/14772000.2016.1218371 2021-11-05T12:55:41Z The dorvilleid polychaete Ophryotrocha orensanzi is reported from the vicinity of Casey station, East Antarctica, an astounding range extension from its previous records in the South Shetland Islands to the opposite side of the Antarctic continent, suggesting that it is a circumpolar species. Genetic studies confirmed the conspecificity and the inferred haplotype network suggests that the two populations studied are genetically connected. Morphological studies of the newly collected material revealed that the jaw apparatus consists of the P- and K-type, in accordance with other members of the ‘lobifera’ clade. We are reporting a previously undocumented button-like structure that we are referring to as ‘nuchal papilla’ for its association with the nuchal region, and present an emended diagnosis for the species. The Casey station population was collected in a clean, unpolluted intertidal environment associated with stones and seaweeds. We are challenging the generally held opinion that Ophryotrocha species are specialists of organically enriched substrates, suggesting that, at least for the particulars of O. orensanzi , they might also be unspecialized opportunists, able to exist in the most pristine environments and having the ability to rapidly increase their population sizes under favourable conditions. Text Antarc* Antarctic Antarctica East Antarctica South Shetland Islands DataCite Metadata Store (German National Library of Science and Technology) Antarctic Casey Station ENVELOPE(110.528,110.528,-66.282,-66.282) East Antarctica South Shetland Islands The Antarctic |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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language |
unknown |
topic |
Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Cancer Inorganic Chemistry FOS Chemical sciences 110309 Infectious Diseases FOS Health sciences |
spellingShingle |
Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Cancer Inorganic Chemistry FOS Chemical sciences 110309 Infectious Diseases FOS Health sciences Paxton, Hannelore Wiklund, Helena Alexander, Frances Taboada, Sergi Is the Antarctic Ophryotrocha orensanzi (Annelida: Dorvilleidae) a circumpolar non-specialized opportunist? |
topic_facet |
Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Cancer Inorganic Chemistry FOS Chemical sciences 110309 Infectious Diseases FOS Health sciences |
description |
The dorvilleid polychaete Ophryotrocha orensanzi is reported from the vicinity of Casey station, East Antarctica, an astounding range extension from its previous records in the South Shetland Islands to the opposite side of the Antarctic continent, suggesting that it is a circumpolar species. Genetic studies confirmed the conspecificity and the inferred haplotype network suggests that the two populations studied are genetically connected. Morphological studies of the newly collected material revealed that the jaw apparatus consists of the P- and K-type, in accordance with other members of the ‘lobifera’ clade. We are reporting a previously undocumented button-like structure that we are referring to as ‘nuchal papilla’ for its association with the nuchal region, and present an emended diagnosis for the species. The Casey station population was collected in a clean, unpolluted intertidal environment associated with stones and seaweeds. We are challenging the generally held opinion that Ophryotrocha species are specialists of organically enriched substrates, suggesting that, at least for the particulars of O. orensanzi , they might also be unspecialized opportunists, able to exist in the most pristine environments and having the ability to rapidly increase their population sizes under favourable conditions. |
format |
Text |
author |
Paxton, Hannelore Wiklund, Helena Alexander, Frances Taboada, Sergi |
author_facet |
Paxton, Hannelore Wiklund, Helena Alexander, Frances Taboada, Sergi |
author_sort |
Paxton, Hannelore |
title |
Is the Antarctic Ophryotrocha orensanzi (Annelida: Dorvilleidae) a circumpolar non-specialized opportunist? |
title_short |
Is the Antarctic Ophryotrocha orensanzi (Annelida: Dorvilleidae) a circumpolar non-specialized opportunist? |
title_full |
Is the Antarctic Ophryotrocha orensanzi (Annelida: Dorvilleidae) a circumpolar non-specialized opportunist? |
title_fullStr |
Is the Antarctic Ophryotrocha orensanzi (Annelida: Dorvilleidae) a circumpolar non-specialized opportunist? |
title_full_unstemmed |
Is the Antarctic Ophryotrocha orensanzi (Annelida: Dorvilleidae) a circumpolar non-specialized opportunist? |
title_sort |
is the antarctic ophryotrocha orensanzi (annelida: dorvilleidae) a circumpolar non-specialized opportunist? |
publisher |
Taylor & Francis |
publishDate |
2016 |
url |
https://dx.doi.org/10.6084/m9.figshare.3848442 https://tandf.figshare.com/articles/journal_contribution/Is_the_Antarctic_i_Ophryotrocha_orensanzi_i_Annelida_Dorvilleidae_a_circumpolar_non-specialized_opportunist_/3848442 |
long_lat |
ENVELOPE(110.528,110.528,-66.282,-66.282) |
geographic |
Antarctic Casey Station East Antarctica South Shetland Islands The Antarctic |
geographic_facet |
Antarctic Casey Station East Antarctica South Shetland Islands The Antarctic |
genre |
Antarc* Antarctic Antarctica East Antarctica South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica South Shetland Islands |
op_relation |
https://dx.doi.org/10.1080/14772000.2016.1218371 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.3848442 https://doi.org/10.1080/14772000.2016.1218371 |
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1766256608863584256 |