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ON THE SALINITY TOLERANCE OF THE PLANKTONIC FORAMINIFER NEOGLOBOQUADRINA PACHYDERMA FROM ANTARCTIC SEA ICE (17th Symposium on Polar Biology)
https://doi.org/10.15094/00005306
https://doi.org/10.15094/00005306d7396a26-12dd-4d81-aa2d-e7c227820aba
名前 / ファイル | ライセンス | アクション |
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KJ00000767649 (620.0 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||
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公開日 | 1996-02-01 | |||||||
タイトル | ||||||||
タイトル | ON THE SALINITY TOLERANCE OF THE PLANKTONIC FORAMINIFER NEOGLOBOQUADRINA PACHYDERMA FROM ANTARCTIC SEA ICE (17th Symposium on Polar Biology) | |||||||
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 | departmental bulletin paper | |||||||
ID登録 | ||||||||
ID登録 | 10.15094/00005306 | |||||||
ID登録タイプ | JaLC | |||||||
ページ属性 | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | P(論文) | |||||||
記事種別(英) | ||||||||
en | ||||||||
Proceeding | ||||||||
論文名よみ | ||||||||
その他のタイトル | ON THE SALINITY TOLERANCE OF THE PLANKTONIC FORAMINIFER NEOGLOBOQUADRINA PACHYDERMA FROM ANTARCTIC SEA ICE (17th Symposium on Polar Biology) | |||||||
著者名(英) |
SPINDLER, Michael
× SPINDLER, Michael
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著者所属(英) | ||||||||
en | ||||||||
Institute for Polar Ecology, University of Kiel | ||||||||
抄録(英) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | The sea ice of both of the Earth's polar regions contains an internal system of delicate brine channels and pockets which serve as a habitat for a variety of organisms including plants and animals. The large standing stock of algae in the ice provides an ample food source for heterotrophic consumers. The sea ice habitat is characterised by low temperatures and correspondingly high salinities. During winter, temperatures as low as-15℃ and salinities as high as 177 psu were recorded in the brine channel system of the upper part of Antarctic sea ice. The tolerance of sympagic organisms to increased salinities is remarkable. Algae grow in salinities of up to 95 psu and also sea ice animals can survive, grow and partly reproduce under high salinities. The foraminifer Neogloboquadrina pachyderma was subjected to a variety of different salinities. Formation of new chambers occurs in salinities of up to 58 psu, specimens survive 82 psu for at least a week, and drastic changes in salinity are tolerated, e.g. direct transfer from 30 to 60 psu or from 60 to 40 psu. Chamber formation rates are slightly slower at higher salinities and the final size of specimens decreases with increasing salinity. Reproduction was never observed in salinities above 50 psu, which corroborates earlier results that N. pachyderma does not reproduce within the sea ice. | |||||||
雑誌書誌ID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AA10819561 | |||||||
書誌情報 |
Proceedings of the NIPR Symposium on Polar Biology 巻 9, p. 85-91, 発行日 1996-02 |
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出版者 | ||||||||
出版者 | National Institute of Polar Research |