Tintinnid ciliates of Amundsen Sea (Antarctica) plankton communities

Abstract : The Amundsen Sea has been described as one of the most productive and dynamic pelagic systems in Antarctica and is one of the least studied. Based on samples from 15 stations in the Amundsen Sea, we describe for the first time the composition of the tintinnid ciliate assemblage of the microzooplankton. We compared the species compositions of coastal polynya sites, where the phytoplankton communities are dominated by Phaeocystis, to those of the offshore deep water sites, which are dominated by diatoms. We found a total of 15 species. Polynya sites were dominated by a few species of tintinnids, mostly those endemic to the Southern Ocean. In contrast, the deep-water sites contained many widespread tintinnid species, which are known from a wide variety of systems as well as other areas of the Southern Ocean. We examined polymorphism known to characterize the Antarctic tintinnid species Cymatocylis affinis/convallaria and Codonellopsis gaussi. We found that the types or forms found appeared unrelated to the type of microplankton community, defined by the identity of the dominant phytoplankton taxa. However, the number of different morphotypes found at a site appeared related to the overall concentration of the species, suggesting that different morphologies, previously considered distinct species, may simply be developmental stages.
Type de document :
Article dans une revue
Polar Research, Co-Action Publishing, 2013, 32 (1), pp.19784. 〈10.3402/polar.v32i0.19784〉
Liste complète des métadonnées

Littérature citée [49 références]  Voir  Masquer  Télécharger

https://hal.sorbonne-universite.fr/hal-01619336
Contributeur : Gestionnaire Hal-Upmc <>
Soumis le : jeudi 19 octobre 2017 - 11:52:31
Dernière modification le : mercredi 19 septembre 2018 - 01:34:31
Document(s) archivé(s) le : samedi 20 janvier 2018 - 14:28:37

Fichier

19_10_2017_Tintinnid .pdf
Publication financée par une institution

Licence


Distributed under a Creative Commons Paternité 4.0 International License

Identifiants

Collections

Citation

John R. Dolan, Eun Jin Yang, Sang Hong Lee, Sun Yong Kim. Tintinnid ciliates of Amundsen Sea (Antarctica) plankton communities. Polar Research, Co-Action Publishing, 2013, 32 (1), pp.19784. 〈10.3402/polar.v32i0.19784〉. 〈hal-01619336〉

Partager

Métriques

Consultations de la notice

57

Téléchargements de fichiers

29