Horizontal distribution of Thetys vagina Tilesius (Tunicata, Thaliacea) in the Japan Sea during spring 2004
The occurrence of the salp Thetys vagina was observed in the Japan Sea during spring 2004. Catches up to 187 kg wet weight per 2.18 x 105 m3 (equal to ca. 0.9 g WW m-3) were collected with 10-m diameter surface-water otter trawl nets. The horizontal distribution indicated that the high biomass was r...
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2006
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fthighwire:oai:open-archive.highwire.org:plankt:fbi138v1 2023-05-15T18:28:21+02:00 Horizontal distribution of Thetys vagina Tilesius (Tunicata, Thaliacea) in the Japan Sea during spring 2004 Iguchi, Naoki Kidokoro, Hideaki 2006-02-22 07:18:27.0 text/html http://plankt.oxfordjournals.org/cgi/content/short/fbi138v1 https://doi.org/10.1093/plankt/fbi138 en eng Oxford University Press http://plankt.oxfordjournals.org/cgi/content/short/fbi138v1 http://dx.doi.org/10.1093/plankt/fbi138 Copyright (C) 2006, Oxford University Press Article TEXT 2006 fthighwire https://doi.org/10.1093/plankt/fbi138 2016-11-16T18:35:34Z The occurrence of the salp Thetys vagina was observed in the Japan Sea during spring 2004. Catches up to 187 kg wet weight per 2.18 x 105 m3 (equal to ca. 0.9 g WW m-3) were collected with 10-m diameter surface-water otter trawl nets. The horizontal distribution indicated that the high biomass was related to the area with high chlorophyll a (Chl a ) concentration, which was located around the subarctic front with the warm Tsushima Current. Five prey taxa were identified from the gut contents of individuals from the high Chl a area. The diatom Coscinodiscus spp. (13-55 µm in diameter) dominated numerically. Another significant prey was the large diatom Coscinodiscus wailesii (219-313 µm), which is an indicator of the spring bloom in this area. The mass occurrence of Thetys vagina thus appears related to phytoplankton availability though the mechanisms remain uncertain. Text Subarctic HighWire Press (Stanford University) Journal of Plankton Research 28 6 537 541 |
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HighWire Press (Stanford University) |
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English |
topic |
Article |
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Article Iguchi, Naoki Kidokoro, Hideaki Horizontal distribution of Thetys vagina Tilesius (Tunicata, Thaliacea) in the Japan Sea during spring 2004 |
topic_facet |
Article |
description |
The occurrence of the salp Thetys vagina was observed in the Japan Sea during spring 2004. Catches up to 187 kg wet weight per 2.18 x 105 m3 (equal to ca. 0.9 g WW m-3) were collected with 10-m diameter surface-water otter trawl nets. The horizontal distribution indicated that the high biomass was related to the area with high chlorophyll a (Chl a ) concentration, which was located around the subarctic front with the warm Tsushima Current. Five prey taxa were identified from the gut contents of individuals from the high Chl a area. The diatom Coscinodiscus spp. (13-55 µm in diameter) dominated numerically. Another significant prey was the large diatom Coscinodiscus wailesii (219-313 µm), which is an indicator of the spring bloom in this area. The mass occurrence of Thetys vagina thus appears related to phytoplankton availability though the mechanisms remain uncertain. |
format |
Text |
author |
Iguchi, Naoki Kidokoro, Hideaki |
author_facet |
Iguchi, Naoki Kidokoro, Hideaki |
author_sort |
Iguchi, Naoki |
title |
Horizontal distribution of Thetys vagina Tilesius (Tunicata, Thaliacea) in the Japan Sea during spring 2004 |
title_short |
Horizontal distribution of Thetys vagina Tilesius (Tunicata, Thaliacea) in the Japan Sea during spring 2004 |
title_full |
Horizontal distribution of Thetys vagina Tilesius (Tunicata, Thaliacea) in the Japan Sea during spring 2004 |
title_fullStr |
Horizontal distribution of Thetys vagina Tilesius (Tunicata, Thaliacea) in the Japan Sea during spring 2004 |
title_full_unstemmed |
Horizontal distribution of Thetys vagina Tilesius (Tunicata, Thaliacea) in the Japan Sea during spring 2004 |
title_sort |
horizontal distribution of thetys vagina tilesius (tunicata, thaliacea) in the japan sea during spring 2004 |
publisher |
Oxford University Press |
publishDate |
2006 |
url |
http://plankt.oxfordjournals.org/cgi/content/short/fbi138v1 https://doi.org/10.1093/plankt/fbi138 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
http://plankt.oxfordjournals.org/cgi/content/short/fbi138v1 http://dx.doi.org/10.1093/plankt/fbi138 |
op_rights |
Copyright (C) 2006, Oxford University Press |
op_doi |
https://doi.org/10.1093/plankt/fbi138 |
container_title |
Journal of Plankton Research |
container_volume |
28 |
container_issue |
6 |
container_start_page |
537 |
op_container_end_page |
541 |
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1766210785284980736 |