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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/689565f21d2cf-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× Ishii, Toshiaki× Watanabe, Teruhisa× Kusakabe, Masashi× 帰山 秀樹× 石井 紀明× 渡部 輝久× 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 | |||||
