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  Studies on the algae of a small softwater stream II. Algal standing crop (measured by chlorophyll-a) on soft and hard substrata

Cox, E. J. (1990). Studies on the algae of a small softwater stream II. Algal standing crop (measured by chlorophyll-a) on soft and hard substrata. Archiv für Hydrobiologie/Supplement (Monographische Beiträge), 83(4), 553-566.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-CA2D-D Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-CA2E-B
Genre: Zeitschriftenartikel

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 Urheber:
Cox, Eileen J.1, Autor           
Affiliations:
1Limnological River Station Schlitz, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976546              

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Schlagwörter: -
 Zusammenfassung: Variation in the algal standing crop on different substrata in an upland stream was assessed using chlorophyll-a as a measure. Chlorophyll level were considerably higher on soft sediments than on natural stones or sandstones tiles, and often approached levels recorded in lowland streams, estuarine or marine coastal habitats. After the flood period, spring and autumn peaks were observed on the epipelon in the middle reach of the stream. A dramatic reduction in chlorophyll levels occurred in March/April due to the spate. Seasonal fluctuations in standing crop were less obvious on natural stones, but spate discharge had a similarly drastic effect on the epilithon. In the spring region epilithic populations were less affected by flood while no clear effect was observed on the epipelon. The use of sandstone tiles as a hard substratum revealed that algal accumulation varied within and between sites, and with season. This was to some extent related to grazing pressure.

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Sprache(n): eng - English
 Datum: 1990-06
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 241966
Anderer: 0775
 Art des Abschluß: -

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Titel: Archiv für Hydrobiologie/Supplement (Monographische Beiträge)
  Alternativer Titel : Arch. Hydrobiol./Suppl. (Mon. Beitr.)
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 83 (4) Artikelnummer: - Start- / Endseite: 553 - 566 Identifikator: ISSN: 03412881