Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean
Community structure and seasonal changes in the population structure of pelagic polychaetes were studied based on zooplankton samples collected by sediment traps moored at 200 m depth in the subarctic and subtropical western North Pacific throughout the year. Eight species belonging to seven genera...
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ftmagnoliapress:oai:ojs.mapress.com:article/40837 2023-05-15T18:27:36+02:00 Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean AMEI, KANAKO JIMI, NAOTO KITAMURA, MINORU YOKOI, NAOYA YAMAGUCHI, ATSUSHI 2020-12-28 application/pdf https://www.mapress.com/j/zs/article/view/zoosymposia.19.1.9 https://doi.org/10.11646/zoosymposia.19.1.9 eng eng Magnolia press https://www.mapress.com/j/zs/article/view/zoosymposia.19.1.9/42313 https://www.mapress.com/j/zs/article/view/zoosymposia.19.1.9 doi:10.11646/zoosymposia.19.1.9 Copyright (c) 2020 Zoosymposia Zoosymposia; Vol 19: 28 Dec. 2020; 41–50 1178-9913 1178-9905 10.11646/zoosymposia.19.1 Annelida info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftmagnoliapress https://doi.org/10.11646/zoosymposia.19.1.9 https://doi.org/10.11646/zoosymposia.19.1 2020-12-29T17:55:11Z Community structure and seasonal changes in the population structure of pelagic polychaetes were studied based on zooplankton samples collected by sediment traps moored at 200 m depth in the subarctic and subtropical western North Pacific throughout the year. Eight species belonging to seven genera and seven families occurred at the subarctic station, while twelve species belonging to ten genera and seven families were identified at the subtropical station. Polychaete abundance was 5.37 ± 0.44 ind. m-2 day-1 (annual mean ± standard error) at the subarctic station, and 1.36 ± 0.15 ind. m-2 day-1 at the subtropical station. Polychaete abundance at the subarctic station was high from May to August, but no seasonal patterns were observed at the subtropical station. The dominant species in the subarctic was Tomopteris septentrionalis, which accounted for 62.9% of annual mean abundance; at the subtropical station, the dominant species was Pelagobia sp. (22.8%). In the subarctic, small specimens of T. septentrionalis (<3 mm in body length) occurred only in winter (December-March). No clear seasonal changes in population structure of the subtropical Pelagobia sp. were detected. The latitudinal patterns we observed in the polychaete communities of the western North Pacific were similar to those previously observed in the eastern North Pacific. Changes in the population structure of T. septentrionalis suggest that the life cycle of this species is seasonal in the subarctic region. Article in Journal/Newspaper Subarctic Magnolia press Pacific Zoosymposia 19 1 41 50 |
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Annelida AMEI, KANAKO JIMI, NAOTO KITAMURA, MINORU YOKOI, NAOYA YAMAGUCHI, ATSUSHI Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean |
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Annelida |
description |
Community structure and seasonal changes in the population structure of pelagic polychaetes were studied based on zooplankton samples collected by sediment traps moored at 200 m depth in the subarctic and subtropical western North Pacific throughout the year. Eight species belonging to seven genera and seven families occurred at the subarctic station, while twelve species belonging to ten genera and seven families were identified at the subtropical station. Polychaete abundance was 5.37 ± 0.44 ind. m-2 day-1 (annual mean ± standard error) at the subarctic station, and 1.36 ± 0.15 ind. m-2 day-1 at the subtropical station. Polychaete abundance at the subarctic station was high from May to August, but no seasonal patterns were observed at the subtropical station. The dominant species in the subarctic was Tomopteris septentrionalis, which accounted for 62.9% of annual mean abundance; at the subtropical station, the dominant species was Pelagobia sp. (22.8%). In the subarctic, small specimens of T. septentrionalis (<3 mm in body length) occurred only in winter (December-March). No clear seasonal changes in population structure of the subtropical Pelagobia sp. were detected. The latitudinal patterns we observed in the polychaete communities of the western North Pacific were similar to those previously observed in the eastern North Pacific. Changes in the population structure of T. septentrionalis suggest that the life cycle of this species is seasonal in the subarctic region. |
format |
Article in Journal/Newspaper |
author |
AMEI, KANAKO JIMI, NAOTO KITAMURA, MINORU YOKOI, NAOYA YAMAGUCHI, ATSUSHI |
author_facet |
AMEI, KANAKO JIMI, NAOTO KITAMURA, MINORU YOKOI, NAOYA YAMAGUCHI, ATSUSHI |
author_sort |
AMEI, KANAKO |
title |
Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean |
title_short |
Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean |
title_full |
Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean |
title_fullStr |
Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean |
title_full_unstemmed |
Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean |
title_sort |
community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western north pacific ocean |
publisher |
Magnolia press |
publishDate |
2020 |
url |
https://www.mapress.com/j/zs/article/view/zoosymposia.19.1.9 https://doi.org/10.11646/zoosymposia.19.1.9 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Zoosymposia; Vol 19: 28 Dec. 2020; 41–50 1178-9913 1178-9905 10.11646/zoosymposia.19.1 |
op_relation |
https://www.mapress.com/j/zs/article/view/zoosymposia.19.1.9/42313 https://www.mapress.com/j/zs/article/view/zoosymposia.19.1.9 doi:10.11646/zoosymposia.19.1.9 |
op_rights |
Copyright (c) 2020 Zoosymposia |
op_doi |
https://doi.org/10.11646/zoosymposia.19.1.9 https://doi.org/10.11646/zoosymposia.19.1 |
container_title |
Zoosymposia |
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19 |
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1 |
container_start_page |
41 |
op_container_end_page |
50 |
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1766209724084125696 |