(Table 1) Statistics of size measurements of Lagenoeca antarctica sp. n. and Salpingoeca abyssalis sp. n. (floating form) sampled during POLARSTERN cruise ANT-XXII/2 and METEOR cruise M63/2
Despite their high abundance and their high importance for the oceanic matter flux, heterotrophic nanoflagellates are only poorly studied in the deep-sea regions. Studies on the choanoflagellate distribution during two deep-sea expeditions, to the South Atlantic (5038 m) and Antarctica (Weddell Sea,...
Main Author: | |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2007
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.848966 https://doi.org/10.1594/PANGAEA.848966 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848966 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848966 2023-05-15T14:03:05+02:00 (Table 1) Statistics of size measurements of Lagenoeca antarctica sp. n. and Salpingoeca abyssalis sp. n. (floating form) sampled during POLARSTERN cruise ANT-XXII/2 and METEOR cruise M63/2 Nitsche, Frank MEDIAN LATITUDE: -45.936702 * MEDIAN LONGITUDE: -21.769860 * SOUTH-BOUND LATITUDE: -63.761670 * WEST-BOUND LONGITUDE: -50.886670 * NORTH-BOUND LATITUDE: -28.111733 * EAST-BOUND LONGITUDE: 7.346950 * DATE/TIME START: 2005-01-05T00:00:00 * DATE/TIME END: 2005-03-04T03:08:00 * MINIMUM DEPTH, water: 2551 m * MAXIMUM DEPTH, water: 5038 m 2007-08-28 text/tab-separated-values, 36 data points https://doi.pangaea.de/10.1594/PANGAEA.848966 https://doi.org/10.1594/PANGAEA.848966 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.848966 https://doi.org/10.1594/PANGAEA.848966 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Nitsche, Frank; Weitere, Markus; Scheckenbach, Frank; Hausmann, Klaus; Wylezich, Claudia; Arndt, Hartmut (2007): Deep sea records of Choanoflagellates with a description of two new species. Acta Protozoologica, 46, 99-106 37MUC AFRIDEEP ANT-XXII/2 Bottle Niskin Date/Time of event DEPTH water Event label Latitude of event Length standard deviation Longitude of event M63/2 M63/2_37MUC Meteor (1986) MUC MultiCorer NIS Ocean and sea region Polarstern PS67/010-2 PS67 ISPOL Species Weddell Sea Width Dataset 2007 ftpangaea https://doi.org/10.1594/PANGAEA.848966 2023-01-20T09:06:16Z Despite their high abundance and their high importance for the oceanic matter flux, heterotrophic nanoflagellates are only poorly studied in the deep-sea regions. Studies on the choanoflagellate distribution during two deep-sea expeditions, to the South Atlantic (5038 m) and Antarctica (Weddell Sea, 2551 m), revealed the deepest records of choanoflagellates so far. A new species, (Lagenoeca antarctica) with a conspicuous spike structure on the theca is described from deep Antarctic waters. Lagenoeca antarctica sp. n. is a solitary unstalked free living salpingoecid-like choanoflagellate. The protoplast is surrounded by a typical theca with unique spikes only visible in SEM micrographs. The ovoid cell nearly fills the whole theca and ranges in size from 4 to 6 µm. The collar measures 2-3 µm and the flagellum 3-5 µm. A second species, Salpingoeca abyssalis sp. n., was isolated from the abyssal plain of the South Atlantic (5038 m depth). Floating and attached forms were observed. The protoplast ranges from to 2 to 4 µm in length and 1 to 2 µm in width. The collar is about the same length as the protoplast and the flagellum has 2 to 2.5 × the length of the protoplast. Phylogenetic analyses based on a fragment of SSU rDNA revealed Salpingoeca abyssalis to cluster together with a marine isolate of Salpingoeca infusionum while Lagenoeca antarctica clusters separately from the other codonosigid and salpingoecid taxa. Salpingoeca abyssalis and an undetermined Monosiga species seems to be the first choanoflagellate species recorded from the abyssal plain. Dataset Antarc* Antarctic Antarctica Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Weddell Weddell Sea ENVELOPE(-50.886670,7.346950,-28.111733,-63.761670) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
37MUC AFRIDEEP ANT-XXII/2 Bottle Niskin Date/Time of event DEPTH water Event label Latitude of event Length standard deviation Longitude of event M63/2 M63/2_37MUC Meteor (1986) MUC MultiCorer NIS Ocean and sea region Polarstern PS67/010-2 PS67 ISPOL Species Weddell Sea Width |
spellingShingle |
37MUC AFRIDEEP ANT-XXII/2 Bottle Niskin Date/Time of event DEPTH water Event label Latitude of event Length standard deviation Longitude of event M63/2 M63/2_37MUC Meteor (1986) MUC MultiCorer NIS Ocean and sea region Polarstern PS67/010-2 PS67 ISPOL Species Weddell Sea Width Nitsche, Frank (Table 1) Statistics of size measurements of Lagenoeca antarctica sp. n. and Salpingoeca abyssalis sp. n. (floating form) sampled during POLARSTERN cruise ANT-XXII/2 and METEOR cruise M63/2 |
topic_facet |
37MUC AFRIDEEP ANT-XXII/2 Bottle Niskin Date/Time of event DEPTH water Event label Latitude of event Length standard deviation Longitude of event M63/2 M63/2_37MUC Meteor (1986) MUC MultiCorer NIS Ocean and sea region Polarstern PS67/010-2 PS67 ISPOL Species Weddell Sea Width |
description |
Despite their high abundance and their high importance for the oceanic matter flux, heterotrophic nanoflagellates are only poorly studied in the deep-sea regions. Studies on the choanoflagellate distribution during two deep-sea expeditions, to the South Atlantic (5038 m) and Antarctica (Weddell Sea, 2551 m), revealed the deepest records of choanoflagellates so far. A new species, (Lagenoeca antarctica) with a conspicuous spike structure on the theca is described from deep Antarctic waters. Lagenoeca antarctica sp. n. is a solitary unstalked free living salpingoecid-like choanoflagellate. The protoplast is surrounded by a typical theca with unique spikes only visible in SEM micrographs. The ovoid cell nearly fills the whole theca and ranges in size from 4 to 6 µm. The collar measures 2-3 µm and the flagellum 3-5 µm. A second species, Salpingoeca abyssalis sp. n., was isolated from the abyssal plain of the South Atlantic (5038 m depth). Floating and attached forms were observed. The protoplast ranges from to 2 to 4 µm in length and 1 to 2 µm in width. The collar is about the same length as the protoplast and the flagellum has 2 to 2.5 × the length of the protoplast. Phylogenetic analyses based on a fragment of SSU rDNA revealed Salpingoeca abyssalis to cluster together with a marine isolate of Salpingoeca infusionum while Lagenoeca antarctica clusters separately from the other codonosigid and salpingoecid taxa. Salpingoeca abyssalis and an undetermined Monosiga species seems to be the first choanoflagellate species recorded from the abyssal plain. |
format |
Dataset |
author |
Nitsche, Frank |
author_facet |
Nitsche, Frank |
author_sort |
Nitsche, Frank |
title |
(Table 1) Statistics of size measurements of Lagenoeca antarctica sp. n. and Salpingoeca abyssalis sp. n. (floating form) sampled during POLARSTERN cruise ANT-XXII/2 and METEOR cruise M63/2 |
title_short |
(Table 1) Statistics of size measurements of Lagenoeca antarctica sp. n. and Salpingoeca abyssalis sp. n. (floating form) sampled during POLARSTERN cruise ANT-XXII/2 and METEOR cruise M63/2 |
title_full |
(Table 1) Statistics of size measurements of Lagenoeca antarctica sp. n. and Salpingoeca abyssalis sp. n. (floating form) sampled during POLARSTERN cruise ANT-XXII/2 and METEOR cruise M63/2 |
title_fullStr |
(Table 1) Statistics of size measurements of Lagenoeca antarctica sp. n. and Salpingoeca abyssalis sp. n. (floating form) sampled during POLARSTERN cruise ANT-XXII/2 and METEOR cruise M63/2 |
title_full_unstemmed |
(Table 1) Statistics of size measurements of Lagenoeca antarctica sp. n. and Salpingoeca abyssalis sp. n. (floating form) sampled during POLARSTERN cruise ANT-XXII/2 and METEOR cruise M63/2 |
title_sort |
(table 1) statistics of size measurements of lagenoeca antarctica sp. n. and salpingoeca abyssalis sp. n. (floating form) sampled during polarstern cruise ant-xxii/2 and meteor cruise m63/2 |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.848966 https://doi.org/10.1594/PANGAEA.848966 |
op_coverage |
MEDIAN LATITUDE: -45.936702 * MEDIAN LONGITUDE: -21.769860 * SOUTH-BOUND LATITUDE: -63.761670 * WEST-BOUND LONGITUDE: -50.886670 * NORTH-BOUND LATITUDE: -28.111733 * EAST-BOUND LONGITUDE: 7.346950 * DATE/TIME START: 2005-01-05T00:00:00 * DATE/TIME END: 2005-03-04T03:08:00 * MINIMUM DEPTH, water: 2551 m * MAXIMUM DEPTH, water: 5038 m |
long_lat |
ENVELOPE(-50.886670,7.346950,-28.111733,-63.761670) |
geographic |
Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Weddell Sea |
op_source |
Supplement to: Nitsche, Frank; Weitere, Markus; Scheckenbach, Frank; Hausmann, Klaus; Wylezich, Claudia; Arndt, Hartmut (2007): Deep sea records of Choanoflagellates with a description of two new species. Acta Protozoologica, 46, 99-106 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.848966 https://doi.org/10.1594/PANGAEA.848966 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.848966 |
_version_ |
1766273588761985024 |