Book contents
- Frontmatter
- Contents
- List of authors
- Preface
- I INTRODUCTION
- II FUNCTION OF GROUNDWATER / SURFACE WATER INTERFACES
- 2 Ecotonal animal assemblages; their interest for groundwater studies
- 3 Stochasticity in resource utilization by a larval chironomidae (diptera) community in the bed sediments of a gravel stream
- 4 Temporal and spatial dynamics of meiofaunal assemblages in the hyporheic interstitial of a gravel stream
- 5 Interstitial fauna along an epigean-hypogean gradient in a Rocky Mountain river
- 6 Filter effect of karstic spring ecotones on the population structure of the hypogean amphipod Niphargus virei
- 7 Community respiration in the hyporheic zone of a riffle-pool sequence
- 8 Diversity, connectivity and variability of littoral, surface water ecotones in three side arms of the Szigetköz region (Danube, Hungary)
- 9 Seasonal dynamics and storage of particulate organic matter within bed sediment of three streams with contrasted riparian vegetation and morphology
- 10 Bedsediments: Protein and POM content (RITRODAT-Lunz study area, Austria)
- 11 Dynamics and vertical distribution of particulate organic matter in river bed sediments (Morava River, Czech Republic)
- 12 Surface water/groundwater/forest alluvial ecosystems: functioning of interfaces. The case of the Rhine floodplain in Alsace (France)
- 13 Modelling of hydrological processes in a floodplain wetland
- 14 Contribution to the groundwater hydrology of the Amboseli ecosystem, Kenya
- 15 The role of hydrology in defining a groundwater ecosystem
- 16 Typology of water transport and chemical reactions in groundwater/lake ecotones
- 17 Development of a water transfer equation for a groundwater/surface water interface and use of it to forecast floods in the Yanghe Reservoir Basin
- 18 Uses and limitations of ground penetrating RADAR in two riparian systems
- III MALFUNCTION OF GROUNDWATER / SURFACE WATER INTERFACES: CAUSES AND METHODS OF EVALUATION
- IV MANAGEMENT AND RESTORATION OF GROUNDWATER / SURFACE WATER INTERFACES
- V CONCLUSION
- ANNEX
10 - Bedsediments: Protein and POM content (RITRODAT-Lunz study area, Austria)
Published online by Cambridge University Press: 07 September 2010
- Frontmatter
- Contents
- List of authors
- Preface
- I INTRODUCTION
- II FUNCTION OF GROUNDWATER / SURFACE WATER INTERFACES
- 2 Ecotonal animal assemblages; their interest for groundwater studies
- 3 Stochasticity in resource utilization by a larval chironomidae (diptera) community in the bed sediments of a gravel stream
- 4 Temporal and spatial dynamics of meiofaunal assemblages in the hyporheic interstitial of a gravel stream
- 5 Interstitial fauna along an epigean-hypogean gradient in a Rocky Mountain river
- 6 Filter effect of karstic spring ecotones on the population structure of the hypogean amphipod Niphargus virei
- 7 Community respiration in the hyporheic zone of a riffle-pool sequence
- 8 Diversity, connectivity and variability of littoral, surface water ecotones in three side arms of the Szigetköz region (Danube, Hungary)
- 9 Seasonal dynamics and storage of particulate organic matter within bed sediment of three streams with contrasted riparian vegetation and morphology
- 10 Bedsediments: Protein and POM content (RITRODAT-Lunz study area, Austria)
- 11 Dynamics and vertical distribution of particulate organic matter in river bed sediments (Morava River, Czech Republic)
- 12 Surface water/groundwater/forest alluvial ecosystems: functioning of interfaces. The case of the Rhine floodplain in Alsace (France)
- 13 Modelling of hydrological processes in a floodplain wetland
- 14 Contribution to the groundwater hydrology of the Amboseli ecosystem, Kenya
- 15 The role of hydrology in defining a groundwater ecosystem
- 16 Typology of water transport and chemical reactions in groundwater/lake ecotones
- 17 Development of a water transfer equation for a groundwater/surface water interface and use of it to forecast floods in the Yanghe Reservoir Basin
- 18 Uses and limitations of ground penetrating RADAR in two riparian systems
- III MALFUNCTION OF GROUNDWATER / SURFACE WATER INTERFACES: CAUSES AND METHODS OF EVALUATION
- IV MANAGEMENT AND RESTORATION OF GROUNDWATER / SURFACE WATER INTERFACES
- V CONCLUSION
- ANNEX
Summary
ABSTRACT The availability of organic matter to animal consumers is very dependent on its protein content. C/N relationships can therefore be used as food quality indicators, although C/N ratios are not only dependent on the actual protein content. The present study analyses the distribution in space and time of protein, TON and TOC in the bedsediments of a second order gravel stream (Oberer Seebach, RITRODAT – Lunz). All three parameters were measured in the same samples. The validity of C/N ratios as food quality indicators is confirmed for sample means but not for individual values.
INTRODUCTION
The energy basis of low order streams is mainly allochthonous organic matter. Above surface imports are bank run off and aerial drift. This organic matter must be processed by the microbial community to become available to animal consumers and the food quality depends on the intensity of microbial activity. The processing of the organic material takes place partly on the sediment surface and partly in the bedsediments. The bedsediments are defined as channel forming sediments quantitatively dominated by epigeic faunal elements (Bretschko, 1992). They are therefore the topmost layer of the hyporheic zone, the extent of which is usually not clearly defined (Bretschko & Moser, 1993; Schwörbel, 1961). The distributions of bacteria (Kasimir, 1990 and in press), meiofauna (Schmid-Araya, 1994) and macro fauna (Bretschko, 1981; Bretschko & Klemens, 1986) indicate a very high metabolic rate in the bedsediments. Organic matter is measured as total organic bound carbon (TOC) and nitrogen (TON). The spatial/temporal distribution of POM is known for a period of some years (Leichtfried, 1985; 1986; 1988; 1991a,b).
- Type
- Chapter
- Information
- Groundwater/Surface Water EcotonesBiological and Hydrological Interactions and Management Options, pp. 75 - 81Publisher: Cambridge University PressPrint publication year: 1997
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