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Periphyton communities on natural substrata in eu-, meso- and oligotrophic lakes at higher latitude
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
2002 (English)In: Biologia (Bratislava), ISSN 0006-3088, E-ISSN 1336-9563, Vol. 57, no 4, p. 433-436Article in journal (Refereed) Published
Abstract [en]

Natural epiphyton and epilithon communities were studied in eu-, meso- and oligotrophic lakes at latitude of 62degrees54' N in Vasternorrlands region of Sweden. The samples of epiphyton as well as epilithon (three per lake) were identical and specific for each lake studied. Both epiphytic and epilithic communities consisted of members of three classes of algae - Cyanophyceae, Chlorophyceae and Bacillariophyceae. The highest species diversity was detected within Chlorophyceae while Cyanophyceae and Bacillariophyceae contained the same amount of species. In general, epiphyton and epilithon shared 44% of species identified. However, both epiphyton and epilithon showed distinct patterns between lakes of different trophic level. Epiphyton in the eutrophic lakes were clearly dominated by Cyanophyceae (Bacillariophyceae co-dominated in one of the eutrophic lakes). Both mesotrophic and oligotrophic lakes were signed by high abundance of Chlorophyceae and almost complete absence of Bacillariophyceae and Cyanophyceae. Epilithic communities in the oligotrophic lakes had higher species diversity than those in the meso- and eutrophic lakes studied. Chlorophyceae were dominant in two eutrophic lakes and Cyanophyceae only in one eutrophic lake, Chlorophyceae as well as Bacillariophyceae were abundant in the oligotrophic lakes. Cluster analysis based on species presence-absence led to a sufficient resolution between both epiphytic and epilithic communities of eutrophic environments, on the one hand, and epiphytic and epilithic communities of meso- and oligotrophic environments, on the other.

Place, publisher, year, edition, pages
2002. Vol. 57, no 4, p. 433-436
Identifiers
URN: urn:nbn:se:miun:diva-13630ISI: 000178172800003Scopus ID: 2-s2.0-0348001883OAI: oai:DiVA.org:miun-13630DiVA, id: diva2:411802
Available from: 2011-04-19 Created: 2011-04-19 Last updated: 2017-12-11Bibliographically approved

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Danilov, Roman AEkelund, Nils

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