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Abundance and size composition of the summer phytoplankton communities in the western North Pacific Ocean, the Bering Sea, and the Gulf of Alaska
https://nipr.repo.nii.ac.jp/records/10895
https://nipr.repo.nii.ac.jp/records/10895ae84ec9e-b1e1-4ce9-97c2-ba55e8c89a41
Item type | 学術雑誌論文 / Journal Article(1) | |||||||
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公開日 | 2015-08-26 | |||||||
タイトル | ||||||||
言語 | en | |||||||
タイトル | Abundance and size composition of the summer phytoplankton communities in the western North Pacific Ocean, the Bering Sea, and the Gulf of Alaska | |||||||
言語 | ||||||||
言語 | eng | |||||||
資源タイプ | ||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
資源タイプ | journal article | |||||||
アクセス権 | ||||||||
アクセス権 | metadata only access | |||||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||
著者 |
Odate, Tsuneo
× Odate, Tsuneo
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抄録 | ||||||||
内容記述タイプ | Abstract | |||||||
内容記述 | Chlorophylla concentrations (Chla) of size-fractionated phytoplankton samples were measured in the western North Pacific Ocean, the Bering Sea, and the Gulf of Alaska during the summer of 1986. Among samples collected in the upper 100 m (total of 210 samples), 207 samples were dominated by micro- (>10 μm) or picoplankton (<2 μm) and only three samples were represented by nanoplankton (2–10 μm). These 207 samples were classified based on the total Chla content into three types: Type H (>1.0 μg l−1), Type M (0.5–1.0 μg l−1), and Type L (<0.5 μg l−1). These types further divided into two subtypes (-p and-m), depending upon dominancy of pico (-p) and microplankton (-m). The phytoplankton community was represented by Type L-p in the Gulf of Alaska, where 80% of the samples fell into this type. It was represented by Type M-p in the western North Pacific and the Oceanic Domain in the Bering Sea, where 53 and 41% of samples were identified as this type, respectively. In the Middle Domain of the Bering Sea, 68% of samples collected below the nitracline was Type H-m, which indicates blooms of microplanton. This type was also observed in the neritic waters near the Aleutian Islands. These types described above are consistent with a general trend that an increase in phytoplankton abundance is attributed to the growth of microplankton. An unusual type occurred above the nitracline of the Middle Domain, where microplankton prevailed, although the total Chla was less (Type L-m). This type represents a feature of late phase of an ice edge bloom. Another unusual type was found mainly in the Outer Domain of the Bering Sea, where the total Chla was high and picoplankton prevailed (Type H-p). The predominance of picoplankton seems to result from the heavy grazing intensity of large calanoid copepods upon microplankton but not upon picoplankton | |||||||
書誌情報 |
en : Journal of Oceanography 巻 52, 号 3, p. 335-351, 発行日 1996 |
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ISSN | ||||||||
収録物識別子タイプ | ISSN | |||||||
収録物識別子 | 0916-8370 | |||||||
DOI | ||||||||
識別子タイプ | DOI | |||||||
関連識別子 | 10.1007/BF02235928 |