Redox potential has been adopted as a qualitative parameter for interpreting solubility changes of nutrients and contaminants and the biological activity within wetland systems for several decades. The majority of studies considering the redox geochemistry in sediments used measurements of bulked material and single point measurement of biogeochemical parameters for interpretation, yet it remains questionable whether this information is reliable for environments that are very dynamic, such as wetlands. In this study it is evaluated whether variations in redox potential reflect dynamics of denitrification and overall bacterial respiration using continuous measurements of redox potential in time-series experiments in laboratory microcosms, in which the biogeochemical variation was enhanced by bioturbation. The results presented here suggest that measurements of redox potential have predictive potential in approximating rates of denitrification and overall bacterial respiration in aquatic sediments. The data clearly suggest that sediment bulk measurements and measurements of single profiles of redox potential, denitrification and bacterial activity may fail to provide ecological relevant information in dynamic systems, while also suggest that if temporal and spatial variability of redox potential measurements is considered, redox potential may provide a useful parameter that reflects biogeochemical processes and functioning of sediments.
Abdel Ghani, N. T.; Hegazy, A. K.; El-Chaghaby, G. A., (2009). Typha domingensis leaf powder for decontamination of aluminium, iron, zinc and lead: Biosorption kinetics and equilibrium modeling. Int. J. Environ. Sci. Tech., 6 (2), 243-248 (6 Pages)Abstract | Full Text (123 K)
2.
Andersen, J. M., (1977). Rates of denitrification of undisturbed sediment from six lakes as a function of nitrate concentration, oxygen and temperature. Arch. Hydrobiol., 80, 147-159 (13 Pages)Abstract
3.
Bhupathiraju, V. K.; Hernandez, M. T.; Landfear, D.; Alvarez-Cohen, L., (1999). Application of a tetrazolium dye as an indicator of viability in anaerobic bacteria.. J. Microbiol. Method, 37 (3), 231-243 (13 Pages), DOI: 10.1016/S0167-7012(99)00069-X. Abstract | Full Text (221 K)
4.
Biati, A.; Karbassi A. R., (2010). Comparison of controlling mechanisms of flocculation processes in estuaries. Int. J. Environ. Sci. Tech., 7 (4), 731-736 (6 Pages)Abstract | Full Text (396 K)
5.
Biati, A.; Karbassi, A. R.; Hassani, A. H.; Monavari, S. M.; Moattar, F., (2010). Role of metal species in flocculation rate during estuarine mixing. Int. J. Environ. Sci. Tech., 7 (2), 327-336 (10 Pages)Abstract | Full Text (1265 K)
6.
Bonin, P.; Rontani, J. F.; Bordenave, L., (2001). Metabolic differences between attached and free-living marine bacteria: inadequacy of liquid cultures for describing in situ bacterial acivity. FEMS Microbiol. Lett., 194 (1), 111-119 (9 Pages)Abstract | Full Text (503 K)
7.
Bright, J. J.; Fletcher, M., (1983). Amino acid assimilation and electron transfer system activity in attached and free-living marine bacteria. Appl. Environ. Microbiol., 45 (3), 818-825 (8 Pages)Abstract | Full Text (1250 K)
8.
Brinkhurst, R. O.; Chua, K. E.; Kaushik, N. K., (1972). Interspecific interactions and selective feeding by tubificid oligocheates. Limno. Oceanograph., 17 (1), 122-133 (12 Pages)Abstract | Full Text (1382 K)
9.
Brünger, R., (1982). The redox potential as an indicator of microbial metabolic processes in north German waters. Radiat. Environ. Biophysics, 21 (2), 141-154 (14 Pages)Abstract | Full Text (775 K)
10.
Chakrabarty, D.; Das, S. K., (2006). Alteration of macroinvertebrate community in tropical aquatic systems in relation to sediment redox potential and overlaying water quality. Int. J. Environ. Sci. Tech., 2 (4), 327-334 (8 Pages)Abstract | Full Text (148 K)
11.
Gao, S.; Tanji, K. K.; Scardaci, S. C.; Chow, A. T., (2002). Comparison of redox indicators in a paddy soil during rice-growing season. Soil Sci. Soc. Am. J., 66 (3), 805-817 (13 Pages), DOI: 10.1016/S0016-7061(03)00048-X. Abstract | Full Text (464 K)
12.
Grenthe, I.; Stumm, W.; Laaksuharju, M.; Nilsson, A. C.; Wikberg, P., (1992). Redox potentials and redox reactions in deep groundwater systems. Chem. Geol., 98 (1-2), 131-150 (20 Pages), DOI: 10.1016/0009-2541(92)90095-M. Abstract | Full Text (1614 K)
13.
Griess, P., (1864). On a new series of bodies in which nitrogen is substituted for hydrogen. Phil. Trans. R. Soc., 154, 667-731 (65 Pages)Abstract | Full Text (39 K)
14.
Hunting, E. R.; de Goeij, J. M.; Asselman, M.; van Soest, R. W. M.; van der Geest, H. G., (2010). Degradation of mangrove-derived organic matter in mangrove associated sponges. Bull. Marine Sci., 86 (4), 871-877 (7 Pages), DOI: 10.5343/bms.2010.1001.. Full Text (381 K)
15.
Jackson, L. J.; Kalff, J.; Rasmussen, J. B., (1993). Sediment pH and redox potential affect the bioavailability of Al, Cu, Fe, Mn, and Zn to rooted aquatic macrophytes. Can. J. Fish. Aqua. Sci., 50 (1), 143-148 (6 Pages)Abstract | Full Text (738 K)
16.
Kaonga, C. C.; Kumwenda, J.; Mapoma, H. T., (2010). Accumulation of lead, cadmium, manganese, copper and zinc by sludge worms; Tubifex tubifex in sewage sludge. Int. J. Environ. Sci. Tech. 7 (1), 119-126 (8 Pages)Abstract | Full Text (1848 K)
17.
Kappler, A.; Emerson, D. E.; Edwards, D.; Amend, J. P.; Gralnick, J. A.; Grathwohl, P.; Hoehler, T.; Straub, K. L., (2005). Microbial activity in biogeochemical gradients - new aspects of research. Geobiol., 3 (3), 229-233 (5 Pages), DOI: 10.1111/j.1472-4669.2005.00053.x. Abstract | Full Text (273 K)
18.
Mansfeldt, T., (2004). Redox potential of bulk soil and soil solution concentration of nitrate, manganese, iron, and sulfate in two Gleysols. J. Plant Nutr. Soil Sci., 167 (1), 7-16 (10 Pages), DOI: 10.1002/jpln.200321204. Abstract | Full Text (227 K)
19.
Männistö M. K.; Tiirola, M.; Häggblom, M. M., (2009). Effect of Freeze-Thaw cycles on bacterial communities of Arctic Tundra. Soil Microb. Ecol., 58 (3), 621-631 (11 Pages), DOI: 10.1007/s00248-009-9516-x. Abstract | Full Text (314 K)
20.
Mohiuddin, K. M.; Zakir, H. M.; Otomo, K.; Sharmin, S.; Shikazono, N., (2010). Geochemical distribution of trace metal pollutants in water and sediments of downstream of an urban river. Int. J. Environ. Sci. Tech., 7 (1), 17-28 (12 Pages)Abstract | Full Text (2131 K)
21.
Morley, C. R.; Trofymow, J. A.; Coleman, D. C.; Cambardella, C., (2005). Effects of Freeze-Thaw stress on bacterial populations in soil microcosms. Microb. Ecol., 9 (4), 329-340 (12 Pages), DOI: 10.1016/0038-0717(88)90092-2. Abstract | Full Text (665 K)
22.
Nouri, J.; Mirbagheri, S. A.; Farrokhian, F.; Jaafarzadeh, N.; A. Alesheikh, A., (2010). Water quality variability and eutrophic state in wet and dry years in wetlands of the semiarid and arid regions. Environ. Earth. Sci., 59 (7), 1397-1407 (11 Pages), DOI: 10.1007/s12665-009-0126-1. Abstract | Full Text (552 K)
23.
Nwuche, C. O.; Ugoji, E. O., (2010). Effect of co-existing plant specie on soil microbial activity under heavy metal stress. Int. J. Environ. Sci. Tech., 7 (4), 697-704 (8 Pages)Abstract | Full Text
24.
Robbins, J. A.; McCall, P. L.; Berton Fisher, J.; Krezoski, J. R., (1979). Effect of deposit feeders on migration of 137Cs in lake sediments. Earth Planet. Sci. Lett., 42 (2), 277-287 (11 Pages), DOI: 10.1016/0012-821X(79)90035-9. Abstract | Full Text (1264 K)
25.
Rodriquez, P.; Martinez-Madrid, M.; Arrate, J. A.; Navarro, E., (2001). Selective feeding by the aquatic oligocheate Tubifex tubifex (Tubificidae, Clitellata). Hydrobiol., 463 (1-3), 133-140 (8 Pages), DOI: 10.1023/A:1013199507341. Abstract | Full Text (366 K)
26.
Rozzi, A.; Remigi, E., (2004). Methods of assessing microbial activity and inhibition under anaerobic conditions: A literature review. Rev. Environ. Sci. Bio. Tech., 3 (2), 93-115 (23 Pages), DOI: 10.1007/s11157-004-5762-z. Abstract | Full Text (239 K)
27.
Saunders, D. L.; Kalff, J., (2001). Denitrification rates in the sediments of Lake Memphremagog, Canada-USA. Water Res., 35 (8), 1897-1904 (8 Pages), DOI: 10.1016/S0043-1354(00)00479-6. Abstract | Full Text (150 K)
28.
seitzinger, S. P., (1988). Denitrification in Freshwater and Coastal Marine Ecosystems: Ecological and Geochemical Significance
(23 pages). Limnol. Oceanograph., 33 (4), 702-724 (23 Pages)Abstract | Full Text (2920 K)
29.
Sekabira, K.; Oryem Origa, H.; Basamba, T. A.; Mutumba, G.; Kakudidi, E., (2010). Assessment of heavy metal pollution in the urban stream sediments and its tributaries. Int. J. Environ. Sci. Tech., 7 (3), 435-446 (12 Pages)Abstract | Full Text (239 K)
30.
Smith. J. J.; McFeters, G. A., (1997). Mechanisms of INT (of 2-(4-iodophenyl)- 3-(4-nitrophenyl)-5-phenyl tetrazolium chloride), and CTC (5-cyano-2,3-ditolyl tetrazolium chloride) reduction in Escherichia coli K-12. J. Microbiol. Methods, 29 (3), 161-175 (15 Pages), DOI: 10.1016/S0167-7012(97)00036-5. Abstract | Full Text (1047 K)
31.
Teasdale, P. R.; Minett, A. I.; Dixon, K.; Lewis, T. W.; Batley, G. E., (1998). Practical improvements for redox potential (Eh) measurements and the application of a multiple-electrode redox probe (MERP) for characterizing sediment in situ. Anal. Chimica Acta, 367 (1-3), 201-213 (13 Pages), DOI: 10.1016/S0003-2670(98)00171-8. Abstract | Full Text (257 K)
32.
Van de Bund, W. J.; Goedkoop, W.; Johnson, R. K., (1994). Effect of deposit-feeder activity on bacterial production and abundance in profundal lake sediment. J. N. Am. Benhol. Soc. 13 (4), 532-539 (8 Pages)Abstract
33.
van der Geest, H. G.; Leon Paumen, M., (2008). Dynamics of metal availability and toxicity in historically polluted floodplain sediments. Sci. Total Environ., 406 (3), 419-425 (7 Pages), DOI: 10.1016/j.scitotenv.2008.05.052. Abstract | Full Text (350 K)
34.
Vink, J. P. M., (2002). Measurement of heavy metal speciation over redox gradients in natural water-sediment interfaces and implications for uptake by benthic organisms. Environ. Sci. Tech., 36 (23), 5130-5138 (9 Pages), DOI: 10.1021/es0200701. Abstract | Full Text (203 K)
35.
Vorenhout, M.; Van der Geest, H. G.; Hunting, E. R., (2010). An improved datalogger and novel probes for continuous redox measurements in wetlands. Int. J. Environ. Anal. Chem., 91 (7-8), 801-810 (10 Pages), DOI: 10.1080/03067319.2010.535123. Abstract | Full Text (710 K)
36.
Vorenhout, M.; Van der Geest, H. G.; Van Marum, D.; Wattel, K.; Eijsackers, H. J. P., (2004). Automated and continuous redox potential measurements in soil. J. Environ. Qual., 33 (4), 1562-1567 (6 Pages), DOI: 10.2134/jeq2004.1562. Abstract | Full Text (140 K)
37.
Wavre, M.; Brinkhurst, R. O., (1971). Interactions between some tubificid oligocheates and bacteria found in the sediments of Toronto Harbour, Ontario. J. Fish. Res. Bd. Can., 28, 335-341 (7 Pages), DOI: 10.1139/f71-045. Abstract | Full Text (258 K)
38.
Yousefi Kebria, D.; Khodadadi, A.; Ganjidoust, H.; Badkoubi, A.; Amoozegar, M. A., (2009). Isolation and characterization of a novel native Bacillus strain capable of degrading diesel fuel. Int. J. Environ. Sci. Tech., 6 (3), 435-442 (8 Pages)Abstract | Full Text (146 K)
39.
Zhang, S. Y.; Wang, Q. F.; Xie, S. G.; (2011). Microbial community changes in contaminated soils in response to phenanthrene amendment. Int. J. Environ. Sci. Tech., 8 (2), 321-330 (10 Pages)Abstract | Full Text (2338 K)