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Scientific article
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English

Seasonal changes of microbial populations in the sediments of the basins of Lugano and Agno

Published inAquatic Sciences, vol. 54, no. 3-4, p. 331-337
Publication date1992
Abstract

This research was carried out with the aim to explore the heterotrophic microbial population of two sediments in different oxic conditions of the Lake of Lugano (Lago di Lugano). The values of the viable bacterial counts found in our sediment samples were typical for an eutrophic lake. The increase in the proportion of anaerobic to aerobic bacteria at 30 °C observed in the sediment samples of Agno may reflect the depletion of oxygen concentrations in the water column. The genera Aeromonas, Pseudomonas, Bacillus and Clostridium, as well as strains belonging to the Coryneform-group, represented the major taxonomic groups of heterotrophic bacterial communities in the water-sediment interface.

Keywords
  • Heterotrophic bacteria
  • Sediments
  • Taxonomy
  • Seasonal variations
  • Aerobic bacterial population
  • Anaerobic bacterial population
  • Lake Lugano (Lago di Lugano)
Citation (ISO format)
PEDUZZI, Raffael, DEMARTA, Antonella, TONOLLA, Mauro Amedeo. Seasonal changes of microbial populations in the sediments of the basins of Lugano and Agno. In: Aquatic Sciences, 1992, vol. 54, n° 3-4, p. 331–337. doi: 10.1007/BF00878145
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Article (Published version)
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ISSN of the journal1015-1621
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