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We found that algal andcyanobacterial communities differed between the glaciers and that the amount of biomass was higher on the colder glacier (Qaanaaq Glacier). The community on the Qaanaaq Glacier was composed mainly of green algae, whereas that on the Russel Glacier was dominated by cyanobacteria. Despite the shorter melting period (due to colder air temperature) for the QaanaaqGlacier, the biovolume of algae and cyanobacteria was 2.35 times higher than that on the Russel Glacier at a similar altitude, suggesting greater primary production on the Qaanaaq Glacier. 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Communities of algae and cyanobacteria on glaciers in west Greenland
https://nipr.repo.nii.ac.jp/records/10152
https://nipr.repo.nii.ac.jp/records/10152f68901bf-7666-464c-b92e-4b638298d3bf
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2014-10-16 | |||||
タイトル | ||||||
タイトル | Communities of algae and cyanobacteria on glaciers in west Greenland | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Communities of algae and cyanobacteria on glaciers in west Greenland | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Greenland | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Glacier | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Green algae | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cyanobacteria | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cryoconite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Greenland | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Glacier | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Green algae | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Cyanobacteria | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Cryoconite | |||||
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 |
Uetake, Jun
× Uetake, Jun× Naganuma, Takeshi× Hebsgaard, Martin Bay× Kanda, Hiroshi× Kohshima, Shiro× Uetake, Jun× Naganuma, Takeshi× Hebsgaard, Martin Bay× Kanda, Hiroshi× Kohshima, Shiro |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Communities of algae and cyanobacteria on two glaciers in west Greenland (the Qaanaaq and Russel glaciers) were analyzed and compared with the aim of explaining why the Qaanaaq Glacier (in northwestern Greenland) has a dark-colored surface in satellite images whereas the Russel Glacier (in western central Greenland) has a light-colored surface. We found that algal andcyanobacterial communities differed between the glaciers and that the amount of biomass was higher on the colder glacier (Qaanaaq Glacier). The community on the Qaanaaq Glacier was composed mainly of green algae, whereas that on the Russel Glacier was dominated by cyanobacteria. Despite the shorter melting period (due to colder air temperature) for the QaanaaqGlacier, the biovolume of algae and cyanobacteria was 2.35 times higher than that on the Russel Glacier at a similar altitude, suggesting greater primary production on the Qaanaaq Glacier. We discuss the possible effects of temperature, nutrient concentrations, and cryoconite holes (melt-holes in the glacier) on the community structure and productivity of algae and cyanobacteria on each glacier, and consider the influence of the identified differences in algal and cyanobacterial communities on the amount of surface melt. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 西グリーンランドの二つの氷河(Qaanaaq氷河、Russel氷河)において、衛星画像の比較から北東部に位置するQaanaaq氷河消耗域は黒く汚れた表面であるのに対して、中西部のRussel氷河では汚れが少ない事が明らかとなっていた。本研究では、これらの原因の1つに雪氷微生物が関与していると推測し、両氷河での藻類、シアノバクテリアの群集に関する分析、比較を行った。藻類、シアノバクテリアの群集は両氷河で異なっており、これらの総生物量は寒冷であるQaanaaq氷河で高かった。Qaanaaq氷河は主に緑藻類が多いのに対して、Russel氷河ではシアノバクテリアが優占していた。寒冷で融解期間が短いにも関わらず、Qaanaaq氷河での生物量はRussel氷河の同高度帯よりも2.35倍大きく、この事はQaanaaq氷河においてより多くの一次生産がある事を示した。気温、栄養塩濃度、クリオコイトホールの構造、緑藻、シアノバクテリアの生産性の影響を考慮して、これらの違いが何故起きたのか考察をした。 | |||||
書誌情報 |
Polar science en : Polar science 巻 4, 号 1, p. 71-80, 発行日 2010-05 |
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出版者 | ||||||
出版者 | 国立極地研究所 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12240481 | |||||
論文ID(NAID) | ||||||
識別子タイプ | NAID | |||||
関連識別子 | 110007583482 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://doi.org/10.1016/j.polar.2010.03.002 | |||||
関連名称 | 10.1016/j.polar.2010.03.002 |