First report of the order Mysida (Crustacea) in Antarctic marine ice caves, with description of a new species of Pseudomma and investigations on the taxonomy, morphology and life habits of Mysidetes species
International audience SCUBA diving explorations of three islands off Dumont d’Urville Station at the coast of Adélie Land, East Antarctica, enabled the observation of marine ice caves. Sampling in this unusual habitat yielded a total of three species of Mysidae, altogether previously poorly known o...
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Online Access: | https://doi.org/10.3897/zookeys.1079.76412 https://hal-amu.archives-ouvertes.fr/hal-03508004 |
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fttriple:oai:gotriple.eu:10670/1.bc7djr 2023-05-15T13:39:23+02:00 First report of the order Mysida (Crustacea) in Antarctic marine ice caves, with description of a new species of Pseudomma and investigations on the taxonomy, morphology and life habits of Mysidetes species WITTMANN, KARL CHEVALDONNÉ, PIERRE Medizinische Universität Wien = Medical University of Vienna Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE) Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement IRD : UMR237-Aix Marseille Université (AMU)-Avignon Université (AU) 2021-12-31 https://doi.org/10.3897/zookeys.1079.76412 https://hal-amu.archives-ouvertes.fr/hal-03508004 en eng HAL CCSD Pensoft hal-03508004 doi:10.3897/zookeys.1079.76412 10670/1.bc7djr https://hal-amu.archives-ouvertes.fr/hal-03508004 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1313-2989 Zookeys Zookeys, Pensoft, 2021, 1079, pp.145-227. ⟨10.3897/zookeys.1079.76412⟩ geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.3897/zookeys.1079.76412 2023-01-22T17:05:57Z International audience SCUBA diving explorations of three islands off Dumont d’Urville Station at the coast of Adélie Land, East Antarctica, enabled the observation of marine ice caves. Sampling in this unusual habitat yielded a total of three species of Mysidae, altogether previously poorly known or unknown to science. Pseudomma kryotroglodytum sp. nov. is described, based on the structure of the antennal scale, telson and on cornea-like lateral portions set off against the main body of eyeplates. Mysidetes illigi is re-established at species level after almost a century in synonymy. Re-descriptions are provided for M. illigi and M. hanseni , based on types and ice cave materials. Keys to the Southern Ocean species of Pseudomma and to the world-wide species of Mysidetes are given. Phylogenetic trees are provided for the genera Pseudomma and Mysidetes . 18S rDNA sequences of P. kryotroglodytum differ from GenBank sequences of other Pseudomma species. First sequence data are given for species of the genus Mysidetes : 18S differs between the two examined species and COI is quite diverse between and within species. We found previously unknown, probably sensorial structures in these ice cave species: in P. kryotroglodytum , the basal segment of the antennula shows a pit-like depression with striated pad on the bottom and a median cyst, connected with the bottom of the eyeplate cleft. M. illigi shows a female homologue of the appendix masculina bearing a field of modified setae. Subsequent investigations demonstrated these structures also in species from other habitats. The feeding apparatus and stomach contents of the three ice cave species point to brushing of small particles (detritus, microalgae) from available surfaces, such as sediment, rock and the ice surface. Differences in the feeding apparatus are very subtle between the two Mysidetes species. The high content of fat bodies in M. hanseni could help it to survive periods of starvation. The large storage volume of the foregut in P. kryotroglodytum points to ... Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Southern Ocean Unknown Antarctic Dumont d’Urville ENVELOPE(140.000,140.000,-66.667,-66.667) East Antarctica Southern Ocean ZooKeys 1079 145 227 |
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language |
English |
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geo envir WITTMANN, KARL CHEVALDONNÉ, PIERRE First report of the order Mysida (Crustacea) in Antarctic marine ice caves, with description of a new species of Pseudomma and investigations on the taxonomy, morphology and life habits of Mysidetes species |
topic_facet |
geo envir |
description |
International audience SCUBA diving explorations of three islands off Dumont d’Urville Station at the coast of Adélie Land, East Antarctica, enabled the observation of marine ice caves. Sampling in this unusual habitat yielded a total of three species of Mysidae, altogether previously poorly known or unknown to science. Pseudomma kryotroglodytum sp. nov. is described, based on the structure of the antennal scale, telson and on cornea-like lateral portions set off against the main body of eyeplates. Mysidetes illigi is re-established at species level after almost a century in synonymy. Re-descriptions are provided for M. illigi and M. hanseni , based on types and ice cave materials. Keys to the Southern Ocean species of Pseudomma and to the world-wide species of Mysidetes are given. Phylogenetic trees are provided for the genera Pseudomma and Mysidetes . 18S rDNA sequences of P. kryotroglodytum differ from GenBank sequences of other Pseudomma species. First sequence data are given for species of the genus Mysidetes : 18S differs between the two examined species and COI is quite diverse between and within species. We found previously unknown, probably sensorial structures in these ice cave species: in P. kryotroglodytum , the basal segment of the antennula shows a pit-like depression with striated pad on the bottom and a median cyst, connected with the bottom of the eyeplate cleft. M. illigi shows a female homologue of the appendix masculina bearing a field of modified setae. Subsequent investigations demonstrated these structures also in species from other habitats. The feeding apparatus and stomach contents of the three ice cave species point to brushing of small particles (detritus, microalgae) from available surfaces, such as sediment, rock and the ice surface. Differences in the feeding apparatus are very subtle between the two Mysidetes species. The high content of fat bodies in M. hanseni could help it to survive periods of starvation. The large storage volume of the foregut in P. kryotroglodytum points to ... |
author2 |
Medizinische Universität Wien = Medical University of Vienna Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE) Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement IRD : UMR237-Aix Marseille Université (AMU)-Avignon Université (AU) |
format |
Article in Journal/Newspaper |
author |
WITTMANN, KARL CHEVALDONNÉ, PIERRE |
author_facet |
WITTMANN, KARL CHEVALDONNÉ, PIERRE |
author_sort |
WITTMANN, KARL |
title |
First report of the order Mysida (Crustacea) in Antarctic marine ice caves, with description of a new species of Pseudomma and investigations on the taxonomy, morphology and life habits of Mysidetes species |
title_short |
First report of the order Mysida (Crustacea) in Antarctic marine ice caves, with description of a new species of Pseudomma and investigations on the taxonomy, morphology and life habits of Mysidetes species |
title_full |
First report of the order Mysida (Crustacea) in Antarctic marine ice caves, with description of a new species of Pseudomma and investigations on the taxonomy, morphology and life habits of Mysidetes species |
title_fullStr |
First report of the order Mysida (Crustacea) in Antarctic marine ice caves, with description of a new species of Pseudomma and investigations on the taxonomy, morphology and life habits of Mysidetes species |
title_full_unstemmed |
First report of the order Mysida (Crustacea) in Antarctic marine ice caves, with description of a new species of Pseudomma and investigations on the taxonomy, morphology and life habits of Mysidetes species |
title_sort |
first report of the order mysida (crustacea) in antarctic marine ice caves, with description of a new species of pseudomma and investigations on the taxonomy, morphology and life habits of mysidetes species |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://doi.org/10.3897/zookeys.1079.76412 https://hal-amu.archives-ouvertes.fr/hal-03508004 |
long_lat |
ENVELOPE(140.000,140.000,-66.667,-66.667) |
geographic |
Antarctic Dumont d’Urville East Antarctica Southern Ocean |
geographic_facet |
Antarctic Dumont d’Urville East Antarctica Southern Ocean |
genre |
Antarc* Antarctic Antarctica East Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Southern Ocean |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1313-2989 Zookeys Zookeys, Pensoft, 2021, 1079, pp.145-227. ⟨10.3897/zookeys.1079.76412⟩ |
op_relation |
hal-03508004 doi:10.3897/zookeys.1079.76412 10670/1.bc7djr https://hal-amu.archives-ouvertes.fr/hal-03508004 |
op_rights |
undefined |
op_doi |
https://doi.org/10.3897/zookeys.1079.76412 |
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ZooKeys |
container_volume |
1079 |
container_start_page |
145 |
op_container_end_page |
227 |
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1766117964438831104 |