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P. Berg, H. Røy, P. Wiberg (2007)
Eddy correlation flux measurements: The sediment surface area that contributes to the fluxLimnology and Oceanography, 52
C. Woulds, S. Bouillon, G. Cowie, E. Drake, J. Middelburg, U. Witte (2016)
Patterns of carbon processing at the seafloor: the role of faunal and microbial communities in moderating carbon flowsBiogeosciences, 13
T. Stieglitz, P. Ridd, P. Müller (2000)
Passive irrigation and functional morphology of crustacean burrows in a tropical mangrove swampHydrobiologia, 421
AP Webb, BD Eyre (2004)
The effect of natural populations of the burrowing thalassinidean shrimp Typaea australiensis on sediment irrigation and benthic metabolism, nutrient fluxes and denitrificationMar Ecol Prog Ser, 268
N. Blair, R. Aller (2012)
The fate of terrestrial organic carbon in the marine environment.Annual review of marine science, 4
A. Tengberg, J. Hovdenes, H. Andersson, O. Brocandel, R. Díaz, D. Hebert, Tony Arnerich, C. Huber, A. Körtzinger, A. Khripounoff, F. Rey, C. Rönning, Jens Schimanski, S. Sommer, A. Stangelmayer (2006)
Evaluation of a lifetime‐based optode to measure oxygen in aquatic systemsLimnology and Oceanography: Methods, 4
R. Aller (2014)
8.11 – Sedimentary Diagenesis, Depositional Environments, and Benthic Fluxes, 8
Bo Jørgensen, David Marais (1990)
The diffusive boundary layer of sediments: oxygen microgradients over a microbial mat.Limnology and oceanography, 35 6
W. Berelson, J. McManus, S. Severmann, C. Reimers (2013)
Benthic flux of oxygen and nutrients across Oregon/California shelf sedimentsContinental Shelf Research, 55
D. Jahnke, R. Jahnke (2008)
Dynamics of Seafloor Processes: Advances from Benthic Observing TechnologiesOceanography, 21
L. Anderson, P. Hall, Å. Iverfeldt, Michiel Loejf, B. Sundby, S. Westerlund (1986)
Benthic respiration measured by total carbonate productionLimnology and Oceanography, 31
M. Brzezinski (1985)
THE Si:C:N RATIO OF MARINE DIATOMS: INTERSPECIFIC VARIABILITY AND THE EFFECT OF SOME ENVIRONMENTAL VARIABLES 1Journal of Phycology, 21
MD Krom, RA Berner (1983)
A rapid method for the determination of organic and carbonate carbon in geological samplesJ Sediment Petrol, 53
W. Ullman, R. Aller (1982)
Diffusion coefficients in nearshore marine sediments1Limnology and Oceanography, 27
R Wollast (1993)
Interactions of C, P and S biogeochemical cycles and global changes
J. Gundersen, N. Ramsing, R. Glud (1998)
Predicting the signal of O2 microsensors from physical dimensions, temperature, salinity, and O2 concentrationLimnology and Oceanography, 43
S. Rysgaard, P. Christensen, L. Nielsen (1995)
Seasonal variation in nitrification and denitrification in estuarine sediment colonized by benthic microalgae and bioturbating infaunaMarine Ecology Progress Series, 126
S. Rysgaard, R. Glud, N. Risgaard-Petersen, T. Dalsgaard (2004)
Denitrification and anammox activity in Arctic marine sedimentsLimnology and Oceanography, 49
Richard Smith, T. Bianchi, M. Allison, C. Savage, V. Galy (2015)
High rates of organic carbon burial in fjord sediments globallyNature Geoscience, 8
A. Devol (2015)
Denitrification, anammox, and N₂ production in marine sediments.Annual review of marine science, 7
S. Pelegrı́, T. Blackburn (1994)
Bioturbation effects of the amphipod Corophium volutator on microbial nitrogen transformations in marine sedimentsMarine Biology, 121
M. Kühl, C. Steuckart, Gabriele Eickert, P. Jeroschewski (1998)
A H2S microsensor for profiling biofilms and sediments: application in an acidic lake sedimentAquatic Microbial Ecology, 15
(2001)
Decomposition of plan materials in marine sediments exposed to different electron acceptors (O2
Hanne Rasmussen, Bo Jsrgensen (1992)
Microelectrode studies of seasonal oxygen uptake in a coastal sediment: role of molecular diffusionMarine Ecology Progress Series, 81
N. Munksby, M. Benthien, R. Glud (2002)
Flow-induced flushing of relict tube structures in the central Skagerrak (Norway)Marine Biology, 141
D. McGinnis, S. Cherednichenko, S. Sommer, P. Berg, L. Rovelli, R. Schwarz, R. Glud, P. Linke (2011)
Simple, robust eddy correlation amplifier for aquatic dissolved oxygen and hydrogen sulfide flux measurementsLimnology and Oceanography: Methods, 9
L. Nickell, K. Black, D. Hughes, J. Overnell, T. Brand, Thom Nickell, E. Breuer, S. Harvey (2003)
Bioturbation, sediment fluxes and benthic community structure around a salmon cage farm in Loch Creran, ScotlandJournal of Experimental Marine Biology and Ecology, 285
J. Gattuso, M. Frankignoulle, R. Wollast (1998)
CARBON AND CARBONATE METABOLISM IN COASTAL AQUATIC ECOSYSTEMSAnnual Review of Ecology, Evolution, and Systematics, 29
R. Glud, J. Gundersen, N. Revsbech, B. Jørgensen, M. Hüttel (1995)
Calibration and performance of the stirred flux chamber from the benthic lander Elinor, 42
M. Krom, R. Berner (1983)
A rapid method for the determination of organic and carbonate carbon in geological samplesJournal of Sedimentary Research, 53
S. Nixon, J. Ammerman, L. Atkinson, V. Berounsky, G. Billen, W. Boicourt, W. Boynton, T. Church, D. Ditoro, R. Elmgren, J. Garber, A. Giblin, R. Jahnke, N. Owens, M. Pilson, S. Seitzinger (1996)
The fate of nitrogen and phosphorus at the land-sea margin of the North Atlantic OceanBiogeochemistry, 35
M. Holtappels, R. Glud, D. Donis, B. Liu, Andrew Hume, F. Wenzhöfer, M. Kuypers (2013)
Effects of transient bottom water currents and oxygen concentrations on benthic exchange rates as assessed by eddy correlation measurementsJournal of Geophysical Research, 118
R. Jahnke, M. Christiansen (1989)
A free-vehicle benthic chamber instrument for sea floor studies, 36
B. Eyre, A. Ferguson (2009)
Denitrification efficiency for defining critical loads of carbon in shallow coastal ecosystemsHydrobiologia, 629
M. Therkildsen, B. Lomstein (1993)
Seasonal variation in net benthic C-mineralization in a shallow estuaryFEMS Microbiology Ecology, 12
G. Holst, O. Kohls, I. Klimant, B. König, M. Kühl, T. Richter (1998)
A MODULAR LUMINESCENCE LIFETIME IMAGING SYSTEM FOR MAPPING OXYGEN DISTRIBUTION IN BIOLOGICAL SAMPLESSensors and Actuators B-chemical, 51
Anneli Gunnars, S. Blomqvist (1997)
Phosphate exchange across the sediment-water interface when shifting from anoxic to oxic conditions an experimental comparison of freshwater and brackish-marine systemsBiogeochemistry, 37
R. Jahnke, D. Jahnke (2000)
Rates of C, N, P and Si recycling and denitrification at the US Mid-Atlantic continental slope depocenter, 47
C. Reimers, K. Fischer, R. Merewether, K. Smith, R. Jahnke (1986)
Oxygen microprofiles measured in situ in deep ocean sedimentsNature, 320
D. Conley (2002)
Terrestrial ecosystems and the global biogeochemical silica cycleGlobal Biogeochemical Cycles, 16
J. Woodley (1975)
The behaviour of some amphiur1d Brittle-StarsJournal of Experimental Marine Biology and Ecology, 18
M. Holtappels, C. Noss, K. Hancke, C. Cathalot, D. McGinnis, A. Lorke, R. Glud (2015)
Aquatic Eddy Correlation: Quantifying the Artificial Flux Caused by Stirring-Sensitive O2 SensorsPLoS ONE, 10
A. Ansell (1974)
Sedimentation of organic detritus in Lochs Etive and Creran, Argyll, ScotlandMarine Biology, 27
(2001)
Constraining organic matter cycling with benthic fluxesThe benthic boundary layer
P. Berg, M. Long, M. Huettel, J. Rheuban, K. Mcglathery, R. Howarth, K. Foreman, A. Giblin, Roxanne Marino (2013)
Eddy correlation measurements of oxygen fluxes in permeable sediments exposed to varying current flow and lightLimnology and Oceanography, 58
X. Lee, W. Massman, B. Law (2004)
Handbook of micrometeorology : a guide for surface flux measurement and analysis
P. Berg, C. Reimers, Johanna Rosman, M. Huettel, M. Delgard, M. Reidenbach, H. Özkan‐Haller (2015)
Technical note: Time lag correction of aquatic eddy covariance data measured in the presence of wavesBiogeosciences, 12
C. Reimers, Y. Alleau, J. Bauer, Jennifer Delaney, P. Girguis, P. Schrader, H. Stecher (2013)
Redox effects on the microbial degradation of refractory organic matter in marine sedimentsGeochimica et Cosmochimica Acta, 121
R. Aller (1994)
Bioturbation and remineralization of sedimentary organic matter: effects of redox oscillation☆Chemical Geology, 114
Claudia Lorrai, D. McGinnis, P. Berg, A. Brand, A. Wüest (2010)
Application of Oxygen Eddy Correlation in Aquatic SystemsJournal of Atmospheric and Oceanic Technology, 27
P. Berg, H. Røy, F. Janssen, V. Meyer, B. Jørgensen, M. Huettel, D. Beer (2003)
Oxygen uptake by aquatic sediments measured with a novel non-invasive eddy-correlation techniqueMarine Ecology Progress Series, 261
D. Hammond, Kathleen Cummins, J. McManus, W. Berelson, Gerald Smith, F. Spagnoli (2004)
Methods for measuring benthic nutrient flux on the California Margin: Comparing shipboard core incubations to in situ lander resultsLimnology and Oceanography: Methods, 2
D. Donis, M. Holtappels, C. Noss, C. Cathalot, K. Hancke, P. Polsenaere, F. Wenzhöfer, A. Lorke, F. Meysman, R. Glud, D. McGinnis (2015)
An Assessment of the Precision and Confidence of Aquatic Eddy Correlation MeasurementsJournal of Atmospheric and Oceanic Technology, 32
D. Canfield (1994)
Factors influencing organic carbon preservation in marine sediments.Chemical geology, 114
R. Wollast (1993)
Interactions of Carbon and Nitrogen Cycles in the Coastal Zone
J Overnell (2002)
Manganese and iron profiles during early diagenesis in Loch Etive, Scotland. Application of two diagenetic modelsEstuar Coast Mar Sci, 54
P. Loh, A. Miller, A. Reeves, S. Harvey, J. Overnell (2008)
Assessing the biodegradability of terrestrially-derived organic matter in Scottish sea loch sedimentsHydrology and Earth System Sciences, 12
B. Wood, P. Tett, A. Edwards (1973)
An Introduction to the Phytoplankton, Primary Production and Relevant Hydrography of Loch EtiveJournal of Ecology, 61
R. Glud, J. Gundersen, B. Jørgensen, N. Revsbech, H. Schulz (1994)
Diffusive and total oxygen uptake of deep-sea sediments in the eastern South Atlantic Ocean: in situ and laboratory measurements, 41
Lars-Ove Loo, P. Jonsson, M. Sköld, Örjan Karlsson (1996)
Passive suspension feeding in Amphiura filiformis (Echinodermata: Ophiuroidea): Feeding behaviour in flume flow and potential feeding rate of field populationsMarine Ecology Progress Series, 139
R. Glud (2008)
Oxygen dynamics of marine sedimentsMarine Biology Research, 4
M. Trimmer, P. Engström, B. Thamdrup (2013)
Stark Contrast in Denitrification and Anammox across the Deep Norwegian Trench in the SkagerrakApplied and Environmental Microbiology, 79
B. Thamdrup, H. Fossing, B. Jørgensen (1994)
Manganese, iron and sulfur cycling in a coastal marine sediment, Aarhus bay, DenmarkGeochimica et Cosmochimica Acta, 58
R. Glud, N. Ramsing, J. Gundersen, I. Klimant (1996)
Planar optrodes: a new tool for fine scale measurements of two-dimensional O2 distribution in benthic communitiesMarine Ecology Progress Series, 140
C. Benitez‐Nelson (2000)
The biogeochemical cycling of phosphorus in marine systemsEarth-Science Reviews, 51
N. Revsbech (1989)
An oxygen microsensor with a guard cathodeLimnology and Oceanography, 34
RA Jahnke (2001)
The benthic boundary layer
E. Kristensen, M. Holmer (2001)
Decomposition of plant materials in marine sediment exposed to different electron acceptors (O2, NO3−, and SO42−), with emphasis on substrate origin, degradation kinetics, and the role of bioturbationGeochimica et Cosmochimica Acta, 65
R. Herbert (1999)
Nitrogen cycling in coastal marine ecosystems.FEMS microbiology reviews, 23 5
P. Berg, R. Glud, Andrew Hume, H. Stahl, K. Oguri, V. Meyer, H. Kitazato (2009)
Eddy correlation measurements of oxygen uptake in deep ocean sedimentsLimnology and Oceanography: Methods, 7
K. Dedieu, C. Rabouille, G. Thouzeau, F. Jean, L. Chauvaud, J. Clavier, V. Mesnage, S. Ogier (2007)
Benthic O2 distribution and dynamics in a Mediterranean lagoon (Thau, France): An in situ microelectrode studyEstuarine Coastal and Shelf Science, 72
M. Frederiksen, R. Glud (2006)
Oxygen dynamics in the rhizosphere of Zostera marina: A two‐dimensional planar optode studyLimnology and Oceanography, 51
R. Jahnke, C. Reimers, D. Craven (1990)
Intensification of recycling of organic matter at the sea floor near ocean marginsNature, 348
P. Loh, A. Reeves, A. Miller, S. Harvey, J. Overnell (2010)
Sediment fluxes and carbon budgets in Loch Creran, western Scotland, 344
N. Revsbech, R. Glud (2009)
Biosensor for laboratory and lander‐based analysis of benthic nitrate plus nitrite distribution in marine environmentsLimnology and Oceanography: Methods, 7
B. Eyre, S. Rysgaard, T. Dalsgaard, P. Christensen (2002)
Comparison of isotope pairing and N2:Ar methods for measuring sediment denitrification—Assumption, modifications, and implicationsEstuaries, 25
� 2003, by the American Society of Limnology and Oceanography, Inc. Effect of the brittle star Amphiura filiformis (Amphiuridae, Echinodermata) on oxygen flux into the sediment
K. Attard, H. Stahl, N. Kamenos, G. Turner, H. Burdett, R. Glud (2015)
Benthic oxygen exchange in a live coralline algal bed and an adjacent sandy habitat: an eddy covariance studyMarine Ecology Progress Series, 535
H. Stahl, A. Tengberg, Jenny Brunnegård, E. Bjørnbom, T. Forbes, A. Josefson, H. Kaberi, I. Hassellöv, F. Olsgard, P. Roos, P. Hall (2004)
Factors influencing organic carbon recycling and burial in Skagerrak sediments.Journal of Marine Research, 62
K. Johnson, J. Sieburth, P. Williams, L. Brändström (1987)
Coulometric total carbon dioxide analysis for marine studies: Automation and calibrationMarine Chemistry, 21
BP Boudreau, NL Guinasso (1982)
The dynamic environment at the ocean floor
R. Glud, P. Berg, H. Fossing, B. Jørgensen (2007)
Effect of the diffusive boundary layer on benthic mineralization and O2 distribution: A theoretical model analysisLimnology and Oceanography, 52
W. Berelson, J. McManus, K. Coale, K. Johnson, D. Burdige, Tammy Kilgore, Debbie Colodner, F. Chavez, R. Kudela, J. Boucher (2003)
A time series of benthic flux measurements from Monterey Bay, CA, 23
Andrew Hume, P. Berg, K. Mcglathery (2011)
Dissolved oxygen fluxes and ecosystem metabolism in an eelgrass (Zostera marina) meadow measured with the eddy correlation techniqueLimnology and Oceanography, 56
BB Jørgensen, DJ Marais (1990)
The diffusive boundary layer and the oxygen uptake of sediments and detritusLimnol Oceanogr, 35
C. Cathalot, C. Rabouille, L. Pastor, B. Deflandre, E. Viollier, R. Buscail, A. Grémare, C. Treignier, A. Pruski (2009)
Temporal variability of carbon recycling in coastal sediments influenced by rivers: assessing the impact of flood inputs in the Rhône River prodelta.Biogeosciences, 7
J Overnell, T Brand, W Bourgeois, PJ Statham (2002)
Manganese dynamics in the water column of the upper basin of Loch Etive, a Scottish fjordEstuar Coast Mar Sci, 55
NE Blair, RC Aller (2012)
The fate of terrestrial ContinenAnn Rev Mar Sci, 4
D. McGinnis, P. Berg, A. Brand, Claudia Lorrai, Theresa Edmonds, A. Wüest (2008)
Measurements of eddy correlation oxygen fluxes in shallow freshwaters: Towards routine applications and analysisGeophysical Research Letters, 35
JK Gundersen, NB Ramsing, RN Glud (1998)
Predicting the signal of oxygen microsensors from physical dimensions, temperature, salinity, and oxygen concentrationsLimnol Oceanogr, 43
A. Webb, B. Eyre (2004)
Effect of natural populations of burrowing thalassinidean shrimp on sediment irrigation, benthic metabolism, nutrient fluxes and denitrificationMarine Ecology Progress Series, 268
D. Canfield, B. Jørgensen, H. Fossing, R. Glud, J. Gundersen, N. Ramsing, B. Thamdrup, J. Hansen, L. Nielsen, P. Hall (1993)
Pathways of organic carbon oxidation in three continental margin sediments.Marine geology, 113
J. Overnell, S. Harvey, R. Parkes (1996)
A biogeochemical comparison of sea loch sediments. Manganese and iron contents, sulphate reduction and oxygen uptake ratesOceanologica Acta, 19
D. Archer, A. Devol (1992)
Benthic oxygen fluxes on the Washington shelf and slope: A comparison of in situ microelectrode and chamber flux measurementsLimnology and Oceanography, 37
R. Glud, B. Thamdrup, H. Stahl, F. Wenzhoefer, A. Glud, H. Nomaki, K. Oguri, N. Revsbech, H. Kitazato (2009)
Nitrogen cycling in a deep ocean margin sediment (Sagami Bay, Japan)Limnology and Oceanography, 54
A. Edwards, D. Edelsten (1977)
Deep water renewal of Loch Etive: A three basin Scottish fjordEstuarine and Coastal Marine Science, 5
P. Loh, A. Reeves, S. Harvey, J. Overnell, A. Miller (2008)
The fate of terrestrial organic matter in two Scottish sea lochsEstuarine Coastal and Shelf Science, 76
(2001)
Constraining organic matter cycling with benthic fluxes. In: Boudreau BP, Jørgensen BB (eds) The benthic boundary layer
F. Toussaint, C. Rabouille, C. Cathalot, B. Bombled, A. Abchiche, O. Aouji, G. Buchholtz, A. Clemençon, N. Geyskens, M. Répécaud, I. Pairaud, R. Verney, N. Tisnérat-Laborde (2014)
A new device to follow temporal variations of oxygen demand in deltaic sediments: the LSCE benthic stationLimnology and Oceanography: Methods, 12
K Vopel, D Thistle, R Rosenberg (2003)
Effect of the brittle star Amphiura filiformis (Amphiuridae, Echinodermata) on oxygen flux into the sedimentLimnol Oceanogr, 48
S Rysggard, RN Glud, N Risgaard-Petersen, T Dalsgaard (2004)
Denitrification and anammox activity in Arctic sedimentsLimnol Oceanogr, 49
W. Austin, M. Inall (2002)
Deep-water renewal in a Scottish fjord: temperature, salinity and oxygen isotopesPolar Research, 21
J. Overnell, T. Brand, W. Bourgeois, P. Statham (2002)
Manganese Dynamics in the Water Column of the Upper Basin of Loch Etive, a Scottish FjordEstuarine Coastal and Shelf Science, 55
Tetsunori Inoue, R. Glud, H. Stahl, Andrew Hume (2011)
Comparison of three different methods for assessing in situ friction velocity: A case study from Loch Etive, ScotlandLimnology and Oceanography: Methods, 9
PS Loh, DA Reeves, AEJ Miller, SM Harvey, J Overnell (2010)
Fjord systems ad archives
S. Forster, R. Glud, J. Gundersen, M. Huettel (1999)
In situ study of bromide tracer and oxygen flux in coastal sedimentsEstuarine Coastal and Shelf Science, 49
J. Overnell (2002)
Manganese and Iron Profiles During Early Diagenesis in Loch Etive, Scotland. Application of two Diagenetic ModelsEstuarine Coastal and Shelf Science, 54
NP Revsbech (1989)
An oxygen microelectrode with a guard cathodeLimnol Oceanogr, 34
G. Holst, Björn Grunwald (2001)
Luminescence lifetime imaging with transparent oxygen optodesSensors and Actuators B-chemical, 74
S�lvia Pelegr�, T. Blackburn (1996)
Nitrogen cycling in lake sediments bioturbated by Chironomus plumosus larvae, under different degrees of oxygenationHydrobiologia, 325
Kenneth Smith, R. Glatts, R. Baldwin, S. Beaulieu, A. Uhlman, R. Horn, C. Reimers (1997)
An autonomous. bottom‐transecting vehicle for making long time‐series measurements of sediment community oxygen consumption to abyssal depthsLimnology and Oceanography, 42
P. Liss, A. Nygren, N. Revsbech, H. Ulfendahl (1997)
Measurements of oxygen tension in the rat kidney after contrast media using an oxygen microelectrode with a guard cathode.Advances in experimental medicine and biology, 411
C. Cathalot, B. Lansard, P. Hall, A. Tengberg, E. Almroth‐Rosell, Anna Apler, Lois Calder, E. Bell, C. Rabouille (2012)
Spatial and Temporal Variability of Benthic Respiration in a Scottish Sea Loch Impacted by Fish Farming: A Combination of In Situ TechniquesAquatic Geochemistry, 18
H. Jensen, P. Mortensen, F. Andersen, E. Rasmussen, A. Jensen (1995)
Phosphorus cycling in a coastal marine sediment, Aarhus Bay, DenmarkLimnology and Oceanography, 40
P. Tréguer, Christina Rocha (2013)
The world ocean silica cycle.Annual review of marine science, 5
R. Glud, J. Gundersen, H. Røy, B. Jørgensen (2003)
Seasonal dynamics of benthic O2 uptake in a semienclosed bay: Importance of diffusion and faunal activityLimnology and Oceanography, 48
Kon‐Kee Liu, C. Kang, T. Kobari, Hongbin Liu, C. Rabouille, K. Fennel (2014)
Biogeochemistry and ecosystems of continental margins in the western North Pacific Ocean and their interactions and responses to external forcing – an overview and synthesisBiogeosciences, 11
P. Loh, A. Reeves, J. Overnell, S. Harvey, A. Miller (2002)
Assessment of terrigenous organic carbon input to the total organic carbon in sediments from Scottish transitional waters (sea lochs): methodology and preliminary resultsHydrology and Earth System Sciences, 6
RC Aller (2014)
Treatise on geochemistry
G. Thouzeau, J. Grall, J. Clavier, L. Chauvaud, F. Jean, A. Leynaert, S. Longphuirt, E. Amice, D. Amouroux (2007)
Spatial and temporal variability of benthic biogeochemical fluxes associated with macrophytic and macrofaunal distributions in the Thau lagoon (France)Estuarine Coastal and Shelf Science, 72
(1982)
The influence of a diffusive sublayer on the aggregation , dissolution and diagenesis at the seafloor
P. Berg, M. Huettel (2008)
Monitoring the Seafloor Using the Noninvasive Eddy Correlation Technique: Integrated Benthic Exchange DynamicsOceanography, 21
R. Glud, H. Stahl, P. Berg, F. Wenzhöfer, K. Oguri, H. Kitazato (2009)
In situ microscale variation in distribution and consumption of 2: A case study from a deep ocean margin sediment (Sagami Bay, Japan)Limnology and Oceanography, 54
Based on in situ microprofiles, chamber incubations and eddy covariance measurements, we investigated the benthic carbon mineralization and nutrient regeneration in a ~65-m-deep sedimentation basin of Loch Etive, UK. The sediment hosted a considerable amount of infauna that was dominated by the brittle star A. filiformis. The numerous burrows were intensively irrigated enhancing the benthic in situ O2 uptake by ~50 %, and inducing highly variable redox conditions and O2 distribution in the surface sediment as also documented by complementary laboratory-based planar optode measurements. The average benthic O2 exchange as derived by chamber incubations and the eddy covariance approach were similar (14.9 ± 2.5 and 13.1 ± 9.0 mmol m−2 day−1) providing confidence in the two measuring approaches. Moreover, the non-invasive eddy approach revealed a flow-dependent benthic O2 flux that was partly ascribed to enhanced ventilation of infauna burrows during periods of elevated flow rates. The ratio in exchange rates of ΣCO2 and O2 was close to unity, confirming that the O2 uptake was a good proxy for the benthic carbon mineralization in this setting. The infauna activity resulted in highly dynamic redox conditions that presumably facilitated an efficient degradation of both terrestrial and marine-derived organic material. The complex O2 dynamics of the burrow environment also concurrently stimulated nitrification and coupled denitrification rates making the sediment an efficient sink for bioavailable nitrogen. Furthermore, bioturbation mediated a high efflux of dissolved phosphorus and silicate. The study documents a high spatial and temporal variation in benthic solute exchange with important implications for benthic turnover of organic carbon and nutrients. However, more long-term in situ investigations with like approaches are required to fully understand how environmental events and spatio-temporal variations interrelate to the overall biogeochemical functioning of coastal sediments.
Aquatic Geochemistry – Springer Journals
Published: Sep 8, 2016
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