The influence of substrates and physicochemical factors on the composition of diatom assemblages in karst springs and their applicability in water-quality assessmentReport as inadecuate




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Hydrobiologia

, Volume 695, Issue 1, pp 97–108

First Online: 22 June 2012Received: 17 January 2010Accepted: 06 April 2011

Abstract

The methodological standards of monitoring programs recommend collecting material from stones, but this community is often absent in slow-flowing waters, whereas a great number of localities do offer bryophytic material for sampling. In order to investigate whether the kind of substrate epilithic or bryophytic influences the diatom-based biomonitoring results the structure of diatom assemblages from 13 anthropogenically altered springs were investigated. To examine differences between diatom assemblages, the species richness of diatom assemblages, H′ Shannon-Wiener diversity index, Trophic Diatom Index TDI and Specific Pollution sensitivity Index SPI were compared. The TDI and SPI differed significantly P = 0.002 and P = 0.004 between springs located in villages and springs away from villages, and did not differ significantly between epilithic and bryophytic samples P > 0.05. No significant differences in species richness or the diversity index H′ P > 0.05 were found between the epilithic and bryophytic diatom assemblages. This study suggests that both the kinds of substrates can be successfully used for diatom-based water-quality biomonitoring in mesotrophic and eutrophic environments.

KeywordsBioindication Diatoms Epibryon Epilithon Krakowsko-Częstochowska Upland Nutrients Guest editors: L. Ector, D. Hlúbiková and L. Hoffmann - Proceedings of the 7th International Symposium -Use of Algae for Monitoring Rivers-, Luxembourg, November 23–25, 2009

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Author: Agata Z. Wojtal - Łukasz Sobczyk

Source: https://link.springer.com/







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