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  1. 120 山岳科学総合研究所
  2. 1202 紀要・刊行物
  3. 12022 信州大学山地水環境教育研究センター 研究報告
  4. Vol. 02

Grazing pressure by amphipods on microalgae in Nanakita river estuary (Gamo lagoon), Japan

http://hdl.handle.net/10091/2031
http://hdl.handle.net/10091/2031
65094f46-047a-47d1-84c1-49efa215a27d
名前 / ファイル ライセンス アクション
InlandWater02-04.pdf InlandWater02-04.pdf (305.6 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2009-02-27
タイトル
タイトル Grazing pressure by amphipods on microalgae in Nanakita river estuary (Gamo lagoon), Japan
言語
言語 eng
キーワード
主題 Grazing pressure, amphipods, diatoms, algae, Gamo lagoon
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
著者 AIKINS, Samuel

× AIKINS, Samuel

en AIKINS, Samuel

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KIKUCHI, Eisuke

× KIKUCHI, Eisuke

en KIKUCHI, Eisuke

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出版者
出版者 信州大学山地水環境教育研究センター
引用
内容記述 信州大学山地水環境教育研究センター研究報告 2: 17-20(2004)
書誌情報 信州大学山地水環境教育研究センター研究報告

巻 2, p. 17-20, 発行日 2004-02-28
抄録
内容記述 Grazing pressure effects exerted by four species of amphipods on epiphytic microalgae were determined in Nakakita river estuary (Gamo lagoon) Japan, considering microalgal strength of adhesion to surfaces with regard to their susceptibility to grazing. Grazing effects were examined for three groups of diatoms, including naturally storongly-attached cells, moderately-attached cells and fairly-attached cells. Diatom species with filamentous forms or low adhesive strength were susceptible to grazing, while those with tighter adhesion were less affected by grazing pressure. Seasonal trends of both amphipods and microalgae found on the macroalgae Gracilaria vermiculophylla showed high densities of amphipods and low densities of microgae during warmer months (June to September) and vice versa in colder months (December to March). This immerse relationship between densities of amphipods and diatoms suggests a casual relationship and shows that effects grazing pressure by amhpipods on epiphytic diatom communities seem to be strong in Gamo lagoon. A manipulated experiment (feeding pressure experiment) revealed that Melosira sp. and Nitzchia sp. were mostly selected by tube-dwelling species (Corophium uenoi and Grandidierella japonica), whilst Gyrosigma sp. and Melosira sp. selected by free-living species (Eogammarus passjeticus and Melita setiflagella).
資源タイプ(コンテンツの種類)
ISSN
収録物識別子タイプ ISSN
収録物識別子 1348-7612
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA11887942
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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