Examination of aerial diatom flushing across watersheds in Luxembourg, Oregon and Slovakia for tracing episodic hydrological connectivity

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Title:Examination of aerial diatom flushing across watersheds in Luxembourg, Oregon and Slovakia for tracing episodic hydrological connectivity
Creators:
Pfister, Laurent; laurent dot pfister at list dot lu; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
Wetzel, Carlos E.; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
Martínez-Carreras, Núria; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
François Iffly, Jean; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
Klaus, Julian; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
Holko, Ladislav; Institute of Hydrology, Slovak Academy of Sciences, Liptovský Mikuláš, Slovak Republic.
McDonnell, Jeffrey J.; University of Saskatchewan, Global Institute for Water Security, 11 Innovation Boulevard, SK S7N 3H5 Saskatoon, Canada.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 63, 3, pp. 235-245
Uncontrolled Keywords:aerial diatoms, hillslope-riparian zone-stream continuum, hydrological connectivity

Abstract

Hydrological processes research remains a field that is severely measurement limited. While conventional tracers (geochemicals, isotopes) have brought extremely valuable insights into water source and flowpaths, they nonetheless have limitations that clearly constrain their range of application. Integrating hydrology and ecology in catchment science has been repeatedly advocated as offering potential for interdisciplinary studies that are eventually to provide a holistic view of catchment functioning. In this context, aerial diatoms have been shown to have the potential for detecting of the onset/cessation of rapid water flowpaths within the hillslope-riparian zone-stream continuum. However, many open questions prevail as to aerial diatom reservoir size, depletion and recovery, as well as to their mobilisation and transport processes. Moreover, aerial diatoms remain poorly known compared to freshwater species and new species are still being discovered. Here, we ask whether aerial diatom flushing can be observed in three catchments with contrasting physiographic characteristics in Luxembourg, Oregon (USA) and Slovakia. This is a prerequisite for qualifying aerial diatoms as a robust indicator of the onset/cessation of rapid water flowpaths across a wider range of physiographical contexts. One species in particular, (Hantzschia amphioxys (Ehr.) Grunow), was found to be common to the three investigated catchments. Aerial diatom species were flushed, in different relative proportions, to the river network during rainfall-runoff events in all three catchments. Our take-away message from this preliminary examination is that aerial diatoms appear to have a potential for tracing episodic hydrological connectivity through a wider range of physiographic contexts and therefore serve as a complementary tool to conventional hydrological tracers.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:Examination of aerial diatom flushing across watersheds in Luxembourg, Oregon and Slovakia for tracing episodic hydrological connectivity
Translated title:Examination of aerial diatom flushing across watersheds in Luxembourg, Oregon and Slovakia for tracing episodic hydrological connectivity
Creators:
Pfister, Laurent; laurent dot pfister at list dot lu; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
Wetzel, Carlos E.; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
Martínez-Carreras, Núria; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
François Iffly, Jean; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
Klaus, Julian; Luxembourg Institute of Science and Technology, Department Environmental Research and Innovation, 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
Holko, Ladislav; Institute of Hydrology, Slovak Academy of Sciences, Liptovský Mikuláš, Slovak Republic.
McDonnell, Jeffrey J.; University of Saskatchewan, Global Institute for Water Security, 11 Innovation Boulevard, SK S7N 3H5 Saskatoon, Canada.
Uncontrolled Keywords:aerial diatoms, hillslope-riparian zone-stream continuum, hydrological connectivity
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:63
Number:3
Page Range:pp. 235-245
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:8525
Item Type:Article
Deposited On:17 Dec 2015 12:39
Last Modified:17 Dec 2015 11:39

Citation

Pfister, Laurent; Wetzel, Carlos E.; Martínez-Carreras, Núria; François Iffly, Jean; Klaus, Julian; Holko, Ladislav; McDonnell, Jeffrey J. (2015) Examination of aerial diatom flushing across watersheds in Luxembourg, Oregon and Slovakia for tracing episodic hydrological connectivity. Journal of Hydrology and Hydromechanics, 63 (3). pp. 235-245. ISSN 0042-790X

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