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Concentrations of trace elements in zooplankton off northeastern Japan

https://repo.qst.go.jp/records/68956
https://repo.qst.go.jp/records/68956
5f21d2cf-7c43-4b1f-86a8-5c46416ca4a1
Item type 会議発表用資料 / Presentation(1)
公開日 2007-06-04
タイトル
タイトル Concentrations of trace elements in zooplankton off northeastern Japan
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_c94f
資源タイプ conference object
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 Kaeriyama, Hideki

× Kaeriyama, Hideki

WEKO 676769

Kaeriyama, Hideki

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Ishii, Toshiaki

× Ishii, Toshiaki

WEKO 676770

Ishii, Toshiaki

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Watanabe, Teruhisa

× Watanabe, Teruhisa

WEKO 676771

Watanabe, Teruhisa

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Kusakabe, Masashi

× Kusakabe, Masashi

WEKO 676772

Kusakabe, Masashi

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帰山 秀樹

× 帰山 秀樹

WEKO 676773

en 帰山 秀樹

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石井 紀明

× 石井 紀明

WEKO 676774

en 石井 紀明

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渡部 輝久

× 渡部 輝久

WEKO 676775

en 渡部 輝久

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日下部 正志

× 日下部 正志

WEKO 676776

en 日下部 正志

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抄録
内容記述タイプ Abstract
内容記述 Zooplankton samples were collected at about 50 m depth with a large ring net (160-cm mouth diameter, 0.5-mm mesh) in May, June, October 2005 and June 2006 at fixed stations off northeastern Japan. Concentrations of trace elements were determined in bulk samples or samples sorted on the taxonomical basis, that is, euphausiids, chaetognaths, copepods; Neocalanus spp., amphipods; Themisto spp. and Cyphocaris sp. The trace elements measured were Al, Ce, Co, Cs, Cu, Fe, Gd, La, Mn, Nd, Pr, Sr and Zn. Chaetognaths had relatively lower concentrations of Co and Sr, and higher concentration of Cs than other species. Two amphipods had higher concentration of Sr. These differences may reflect different biological processes in metabolism of these elements. Generally speaking, the concentrations of lanthanides along with Al and Mn did not differ greatly among the taxonomic groups. A good linear relationship on a log-log plot was observed between the concentration factors of the trace elements in zooplankton and the mean oceanic residence times calculated from mean dissolved river-water inputs. Our study would contribute to the understanding of the role of zooplankton in the marine biogeochemical cycle of the trace elements.
会議概要(会議名, 開催地, 会期, 主催者等)
内容記述タイプ Other
内容記述 4th Zooplankton Production Symposium
発表年月日
日付 2007-06-01
日付タイプ Issued
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