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Vertical changes in abundance, biomass and community structure of pelagic polychaetes down to 1000 m depths at Station K2 in the western subarctic Pacific Ocean covering the four seasons and day-night
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| Title: | Vertical changes in abundance, biomass and community structure of pelagic polychaetes down to 1000 m depths at Station K2 in the western subarctic Pacific Ocean covering the four seasons and day-night |
| Authors: | Amei, Kanako Browse this author | | Dobashi, Ryo Browse this author | | Jimi, Naoto Browse this author | | Kitamura, Minoru Browse this author →KAKEN DB | | Yamaguchi, Atsushi Browse this author →KAKEN DB |
| Keywords: | pelagic polychaetes | | Pelagobia longicirrata | | Poeobius meseres | | Tomopteris septentrionalis | | Typhloscolex muelleri |
| Issue Date: | May-2021 |
| Publisher: | Oxford University Press |
| Journal Title: | Journal of plankton research |
| Volume: | 43 |
| Issue: | 3 |
| Start Page: | 442 |
| End Page: | 457 |
| Publisher DOI: | 10.1093/plankt/fbab031 |
| Abstract: | Pelagic polychaetes are distributed from the sea surface to greater depths of the oceans worldwide, but little information is available regarding their ecology. This study investigated the vertical distribution of abundance, biomass and community structure of pelagic polychaetes at a single station in the western subarctic Pacific based on day-night vertical stratified samples collected from a 0 to 1000 m water column during four seasons covering 1 year. The polychaete abundance and biomass ranged from 0 to 757 ind. 1000 M-3 and 0-6.1 mg WW m(-3), respectively. Ten pelagic polychaete species belonging to nine genera and six families were identified. From cluster analysis based on abundance, the polychaete community was divided into five communities. Each community occurred at different depth layers. Two surface groups seen at 0-200 m were dominated by two carnivorous species: Tomopteris septentrionalis and Typhloscolex muelleri. The deepest group, dominated by the particle feeder Pelagobia longicirrata, was seen at 500-1000 m. Two transition groups occurred in the intermediate depths. These vertical distributions of the pelagic polychaete communities were common throughout the season and day. Water mass, food availability and the oxygen minimum layer are put forth as environmental factors that affect the pelagic polychaete community. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/85116 |
| Appears in Collections: | 水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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