Publication Cover
SIL Proceedings, 1922-2010
Internationale Vereinigung für Theoretische und Angewandte Limnologie: Verhandlungen
Volume 25, 1994 - Issue 3
1
Views
0
CrossRef citations to date
0
Altmetric
XI. Running Waters

Seasonal fluctuation in the number of bacteria and its relation to environmental factors in the Tamagawa River

Pages 1793-1795 | Published online: 01 Dec 2017
 

Summary

A strong, positive relationship was found between bacterial density and chlorophyll concentration in the epilithon on the riverbed at Unazawa, on the upstream part of the Tamagawa River. However, at Koremasa, in the middle part of the river, the number of bacteria in the epilithon was related to the concentration of DOC, P-compounds and NO3-N in water flowing on the riverbed. Environmental factors had no effect on bacterial density in the river water at either sampling site. The fact that the number of bacteria in the epilithon at a particular site was related to environmental factors at that site suggests that the bacteria on the upper surface of the stones of the riverbed form an autochthonous community. Most of the bacteria in the river water may be allochthonous species flowing in water.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.