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Development of a “smart” tracer for the assessment of microbiological activity and sediment-water interaction in natural waters: The resazurin-resorufin system

Creator:: Haggerty, Roy, Argerich, Alba, and Marti, Eugenia
Abstract:: A “smart” tracer is a tracer that provides, directly or through measurement of its concentration or in combination with another compound, at least one “bit” more of information about the environment through which it travels than a conservative tracer. In this study we propose and present the chemical compound resazurin...
Resource Type:: Article
Full Text:: , and E. Martı́ (2008), Development of a ‘‘smart’’ tracer for the assessment of microbiological

Temporal variation of hydrological exchange and hyporheic biogeochemistry in a headwater stream during autumn

Creator:: Argerich, Alba, Marti, Eugenia, Sabater, Francesc, and Ribot, Miquel
Abstract:: The hyporheic zone is of great interest for stream ecologists because of its role in stream biogeochemical processing. Our study addresses the effects of leaf-litter inputs and varying discharge on surface–hyporheic water exchange and their possible consequences for the hyporheic zone biogeochemistry. Our study was conducted during autumn in Riera...
Resource Type:: Article
Full Text:: DO, higher SRP and NO3-N concentrations, and 39 similar NH4-N concentration. Hyporheic water had

Nutrient uptake in a stream affected by hydropower plants: comparison between stream channels and diversion canals

Creator:: Izagirre, Oihana, Argerich, Alba, Marti, Eugenia, and Elosegi, Arturo
Abstract:: Small hydropower plants divert part of the water from wide and physically complex stream channels with active hyporheic areas to narrow and hydraulically simple concrete canals, and thus, might affect nutrient dynamics. We compared nutrient uptake in diversion canals and in stream channels in the Leitzaran Stream (Basque Country, northern...
Resource Type:: Article
Full Text:: ; Petts, 1984; Ward et al., 1999; Elosegi et al., 39 2010). In addition, water diversion into artificial

Quantification of metabolically active transient storage (MATS) in two reaches with contrasting transient storage and ecosystem respiration

Creator:: Argerich, Alba, Haggerty, Roy, Marti, Eugenia, Sabater, Francesc, and Zarnetske, Jay
Abstract:: Water transient storage zones are hotspots for metabolic activity in streams although the contribution of different types of transient storage zones to the whole-reach metabolic activity is difficult to quantify. In this study we present a method to measure the fraction of the transient storage that is metabolically active (MATS)...
Resource Type:: Article
Full Text:: ,1,2 Roy Haggerty,2 Eugènia Martí,3 Francesc Sabater,4 and Jay Zarnetske2 Received 2 April 2010

Influence of transient storage on stream nutrient uptake based on substrata manipulation

Creator:: Argerich, Alba, Marti, Eugenia, Sabater, Francesc, Haggerty, Roy, and Ribot, Miquel
Abstract:: Quantification of the transient storage zone (A[subscript s]) has become critical in stream biogeochemical studies addressed to examine factors controlling nutrient uptake. It is expected that higher A[subscript s] may enhance the interaction between nutrients and biota and thus, increase nutrient uptake. However, results from the literature are controversial. We...
Resource Type:: Article
Full Text:: . Argerich A., Martí E., Sabater F., Ribot M., von Schiller D., and Riera J. (2008) Combined effects of leaf

Resazurin as a “smart” tracer for quantifying metabolically active transient storage in stream ecosystems

Creator:: Haggerty, Roy, Martí, Eugénia, Argerich, Alba, von Schiller, Daniel, and Grimm, Nancy B.
Abstract:: We propose the experimental use of resazurin (Raz) and develop a metabolically active transient storage (MATS) model to include processes that may provide additional information on transient storage from a biogeochemical perspective in stream ecosystems. Raz is a phenoxazine compound that reduces irreversibly to resorufin (Rru) in the presence of...
Resource Type:: Article
Full Text:: metabolically active transient storage in stream ecosystems Roy Haggerty,1 Eugènia Martı́,2 Alba Argerich,3

Combined Effects of Leaf Litter Inputs and a Flood on Nutrient Retention in a Mediterranean Mountain Stream During Fall

Creator:: Argerich, Alba, Marti, Eugenia, Sabater, Francesc, Ribot, Miquel, von Schiller, Daniel, and Riera, Joan L.
Abstract:: This study examined the effect of increasing in-channel leaf standing stocks on hydrologic transient storage and nutrient retention in a Mediterranean mountain stream. A flood at the end of the leaf fall period provided the opportunity to examine the effect of abrupt removal of much of the leaf material. Twenty-one...
Resource Type:: Article
Full Text:: implications for stream nutrient dynamics under climate change 38 scenarios.39 4 Introduction 40

Ecosystem respiration increases with biofilm growth and bed forms: Flume measurements with resazurin

Creator:: Haggerty, Roy, Ribot, Miquel, Singer, Gabriel A., Marti, Eugénia, Argerich, Alba, Agell, Gemma, and Battin, Tom J.
Abstract:: In a set of streamside mesocosms, stream ecosystem respiration (ER) increased with biofilm biomass and flow heterogeneity (turbulence) generated by impermeable bed forms, even though those bed forms had no hyporheic exchange. Two streamside flumes with gravel beds (single layer of gravel) were operated in parallel. The first flume had...
Resource Type:: Article
Full Text:: growth and bed forms: Flume measurements with resazurin Haggerty, R., Ribot, M., Singer, G. A., Martí

Quantifying spatial differences in metabolism in headwater streams

Creator:: Gonzalez-Pinzon, Ricardo, Haggerty, Roy, and Argerich, Alba
Abstract:: Stream functioning includes simultaneous interaction among solute transport, nutrient processing, and metabolism. Metabolism is measured with methods that have limited spatial representativeness and are highly uncertain. These problems restrict development of methods for up-scaling biological processes that mediate nutrient processing. We used the resazurin–resorufin (Raz-Rru) tracer system to estimate metabolism...
Resource Type:: Article
Full Text:: respiration, metabolism, headwater streams, 37 transient storage, hotspots 38 39 FWS MS 13-175 3

ArgerichComprehensiveMultiyearCarbon.pdf

Creator:: Argerich, Alba, Haggerty, Roy, Johnson, Sherri L., Wondzell, Steven M., Dosch, Nicholas, Corson-Rikert, Hayley, Ashkenas, Linda R., Pennington, Robert, and Thomas, Christoph K.
Abstract:: Headwater streams comprise nearly 90% of the total length of perennial channels in global catchments. They mineralize organic carbon entering from terrestrial systems, evade terrestrial carbon dioxide (CO₂ ), and generate and remove carbon through in-stream primary production and respiration. Despite their importance, headwater streams are often neglected in global...
Full Text:: -2427.2003.01062.x. Battin, T. J., L. A. Kaplan, S. Findlay, C. S. Hopkinson, E. Martí, A. I. Packman, J. D

ScholarsArchive@OSU

Development of a “smart” tracer for the assessment of microbiological activity and sediment-water interaction in natural waters: The resazurin-resorufin system

Temporal variation of hydrological exchange and hyporheic biogeochemistry in a headwater stream during autumn

Nutrient uptake in a stream affected by hydropower plants: comparison between stream channels and diversion canals

Quantification of metabolically active transient storage (MATS) in two reaches with contrasting transient storage and ecosystem respiration

Influence of transient storage on stream nutrient uptake based on substrata manipulation

Resazurin as a “smart” tracer for quantifying metabolically active transient storage in stream ecosystems

Combined Effects of Leaf Litter Inputs and a Flood on Nutrient Retention in a Mediterranean Mountain Stream During Fall

Ecosystem respiration increases with biofilm growth and bed forms: Flume measurements with resazurin

Quantifying spatial differences in metabolism in headwater streams

ArgerichComprehensiveMultiyearCarbon.pdf

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