Comparison of east and west chlorophyll a standing stock and oceanic habitat along the Transition Domain of the North Pacific

Chlorophyll (Chl) a was measured every 10 m from 0 to 150 m in the Transition Domain (TD), located between 37 and 45°N, and from 160°E to 160°W, in May and June (Leg 1) and in June and July (Leg 2), 1993–96. Total Chl a standing stocks integrated from 0 to 150 m were mostly within the range of 20 an...

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Published in:Journal of Plankton Research
Main Authors: Shiomoto, Akihiro, Hashimoto, Shinji
Format: Text
Language:English
Published: Oxford University Press 2000
Subjects:
Online Access:http://plankt.oxfordjournals.org/cgi/content/short/22/1/1
https://doi.org/10.1093/plankt/22.1.1
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spelling fthighwire:oai:open-archive.highwire.org:plankt:22/1/1 2023-05-15T18:28:34+02:00 Comparison of east and west chlorophyll a standing stock and oceanic habitat along the Transition Domain of the North Pacific Shiomoto, Akihiro Hashimoto, Shinji 2000-01-01 00:00:00.0 text/html http://plankt.oxfordjournals.org/cgi/content/short/22/1/1 https://doi.org/10.1093/plankt/22.1.1 en eng Oxford University Press http://plankt.oxfordjournals.org/cgi/content/short/22/1/1 http://dx.doi.org/10.1093/plankt/22.1.1 Copyright (C) 2000, Oxford University Press ORIGINAL ARTICLES TEXT 2000 fthighwire https://doi.org/10.1093/plankt/22.1.1 2007-06-24T01:50:41Z Chlorophyll (Chl) a was measured every 10 m from 0 to 150 m in the Transition Domain (TD), located between 37 and 45°N, and from 160°E to 160°W, in May and June (Leg 1) and in June and July (Leg 2), 1993–96. Total Chl a standing stocks integrated from 0 to 150 m were mostly within the range of 20 and 50 mg m–2. High standing stocks (>50 mg m–2) were generally observed westof 180°, with the exception of the sporadic high values at the easternmost station. The total Chl a standing stock tended to be higher in the western TD (160°E–172°30′E) than in the central (175°E–175°W) and eastern (170°W–160°W) TD on Leg 1, but the same result was not observed on Leg 2. It was likely that large phytoplankton (2–10 and >10 μm fractions) contributed to the high total Chl a standing stock. We suggest that the high total Chl a standing stock on Leg 1, in late spring and early summer, reflects the contribution of the spring bloom in the subarctic region of the northwestern Pacific Ocean. The distribution of total Chl a standing stock on Leg 2 was scarcely affected by the spring phytoplankton bloom, suggesting that total Chl a standing stock is basically nearly uniform in the TD in spring and summer. Moreover, year-to-year variation in the total Chl a standing stock was observed in the western TD on Leg 1, suggesting that phytoplankton productivity and/or the timing of the main period of the bloom exhibits interannual variations. Text Subarctic HighWire Press (Stanford University) Pacific Journal of Plankton Research 22 1 1 14
institution Open Polar
collection HighWire Press (Stanford University)
op_collection_id fthighwire
language English
topic ORIGINAL ARTICLES
spellingShingle ORIGINAL ARTICLES
Shiomoto, Akihiro
Hashimoto, Shinji
Comparison of east and west chlorophyll a standing stock and oceanic habitat along the Transition Domain of the North Pacific
topic_facet ORIGINAL ARTICLES
description Chlorophyll (Chl) a was measured every 10 m from 0 to 150 m in the Transition Domain (TD), located between 37 and 45°N, and from 160°E to 160°W, in May and June (Leg 1) and in June and July (Leg 2), 1993–96. Total Chl a standing stocks integrated from 0 to 150 m were mostly within the range of 20 and 50 mg m–2. High standing stocks (>50 mg m–2) were generally observed westof 180°, with the exception of the sporadic high values at the easternmost station. The total Chl a standing stock tended to be higher in the western TD (160°E–172°30′E) than in the central (175°E–175°W) and eastern (170°W–160°W) TD on Leg 1, but the same result was not observed on Leg 2. It was likely that large phytoplankton (2–10 and >10 μm fractions) contributed to the high total Chl a standing stock. We suggest that the high total Chl a standing stock on Leg 1, in late spring and early summer, reflects the contribution of the spring bloom in the subarctic region of the northwestern Pacific Ocean. The distribution of total Chl a standing stock on Leg 2 was scarcely affected by the spring phytoplankton bloom, suggesting that total Chl a standing stock is basically nearly uniform in the TD in spring and summer. Moreover, year-to-year variation in the total Chl a standing stock was observed in the western TD on Leg 1, suggesting that phytoplankton productivity and/or the timing of the main period of the bloom exhibits interannual variations.
format Text
author Shiomoto, Akihiro
Hashimoto, Shinji
author_facet Shiomoto, Akihiro
Hashimoto, Shinji
author_sort Shiomoto, Akihiro
title Comparison of east and west chlorophyll a standing stock and oceanic habitat along the Transition Domain of the North Pacific
title_short Comparison of east and west chlorophyll a standing stock and oceanic habitat along the Transition Domain of the North Pacific
title_full Comparison of east and west chlorophyll a standing stock and oceanic habitat along the Transition Domain of the North Pacific
title_fullStr Comparison of east and west chlorophyll a standing stock and oceanic habitat along the Transition Domain of the North Pacific
title_full_unstemmed Comparison of east and west chlorophyll a standing stock and oceanic habitat along the Transition Domain of the North Pacific
title_sort comparison of east and west chlorophyll a standing stock and oceanic habitat along the transition domain of the north pacific
publisher Oxford University Press
publishDate 2000
url http://plankt.oxfordjournals.org/cgi/content/short/22/1/1
https://doi.org/10.1093/plankt/22.1.1
geographic Pacific
geographic_facet Pacific
genre Subarctic
genre_facet Subarctic
op_relation http://plankt.oxfordjournals.org/cgi/content/short/22/1/1
http://dx.doi.org/10.1093/plankt/22.1.1
op_rights Copyright (C) 2000, Oxford University Press
op_doi https://doi.org/10.1093/plankt/22.1.1
container_title Journal of Plankton Research
container_volume 22
container_issue 1
container_start_page 1
op_container_end_page 14
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