Abstract
The distribution of iron both in suspended sediment and in the water column has been studied during summer stratification in Lake Banyoles. In this lake, near bottom springs, a very fine material ‘suspended sediment’ remains in suspension. Dissolved Fe2+ in interstitial water of this suspended sediment, is related to redox potential and to the bottom water inflow. In the water column, soluble iron is present in the hypolimnion of the six different basins forming Lake Banyoles. Under those conditions Fe2+ is partially removed by sulfide produced in the anoxic sediment. In addition, a peak of Fe2+ found at the density gradient level in basins C-III, C-IV and C-VI. A three compartment model on the dynamics of the processes involving iron in Lake Banyoles is proposed. The bottom springs supply oxygen to the anoxic hypolimnion affecting chemical processes of the iron cycle. The presence of phototrophic sulfur bacteria in the anoxic monimolimnion of basins C-III and C-IV can be related to the kinetics of Fe2+ and sulfide. In C-III sulfide concentration exceeds Fe2+ concentration whereas in C-IV sulfide is not detectable and iron reached values up to 60 mM. The presence of phototrophic sulfur bacteria in iron-containing environments with no detectable sulfide is explained by the ability of such microorganisms to use FeS as electron donor instead of H2S.
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References
Abella, C. A., E. Montesinos & R. Guerrero, 1980. Field studies on the competition between purple and green sulfur bacteria for available light. In Dokulil, M. Metz, H. & Jewson, D. (eds) Developments in Hydrobiology, 3: 172–181. Dr W. Junk, The Hague.
Boyum, A., 1970. Iron metabolism in two basins of a lake near Oslo, Norway. J. Nordic Hydrology. Vol 1, 3: 158–180.
Davison, N. & S. I. Heaney, 1978. Ferrous iron-sulfide interaction in anoxic hypolimnetic waters. Limnol. Oceanogr. 23, 6: 1194–1200.
Ellaway, M., R. Beckett & T. H. Barry, 1980. Behaviour of iron and manganese in the Yarra Stuary. Aust. J. Mar. Freshwat. Res. 31: 587–609.
Emerson, 1983. The behaviour of trace metals in marine anoxic waters: solubilities at the oxygen-H2S interface. From ‘Trace metals in sea waters’ pp. 579–603.
Gloe,A., N. Pfennig, H. Brockmann & W. Trowitzsch, 1975. A new bacteriochlorophyll from brown colored chlorobiaceae. Arch. Microbiol. 102: 103–109.
Guerrero, R. & C. Abella, 1978. Dinamica espaciotemporal de las poblaciones bacterianas fotosintéticas en una laguna anaerobia de aguas sulfurosas. Oecol Aquat. 3: 193–205.
Guerrero, R., E. Montesinos, C. Pedros-Alio, I. Esteve, J. Mas, H. van Gemerden, P. A. G. Hofman & J. F. Bakker, 1985. Phototrophic sulfur bacteria in two spanish lakes. Vertical distribution and limiting factors. Limnol. Oceanogr. 30: 919–931.
Hutchinson, G. E., 1957. A treatise on Limnology. v. l. Wiley. Part 2. Chemistry of lakes (Chapter 11) pp. 691–726.
Lidén, J., 1983. Equilibrium approaches to natural water systems. Part 3. A study of equilibrium reactions of Fe 2+ during its diffusional transport through the anoxic hypolimnion of an ice covered lake. Schweiz. Z. Hydrol. 45: 411–429.
Margalef, R., 1983. Limnologia. Ed Omega. Barcelona.
Montesinos, E., R. Guerrero, C. A. Abella & I. Esteve, 1983. Ecology and physiology of the competition for light between Chlorobium limicola and Chlorobium phaeobacteroides in natural habitats. Appl. Envir. Microbiol. 46: 1007–1016.
Moreno-Amich, R. & E. Garcia-Berthou, 1987. Nuevo mapa batimetrico del lago de Banyoles obtenico pro ecosondación. Actas del IV Congreso Español de Limnologia.
Mortimer, C. H., 1942. The exchange of dissolved substances between mud and water in lakes. III and IV. J. Ecol. 30: 147–201.
Pfennig, N., 1967. Photosynthetic bacteria. Ann. Rev. Microbiol. 21: 285–324.
Roget, E. & X. Casamitjana, 1987. Calculo de los caudales de entrada de agua por las cubetas del lago de Banyoles. Actas de IV Congreso Español de Limnologia. pp. 334–36.
Smith, J. H. & A. Benitez, 1955. Chlorophylls. Analysis in plant materials. In: Modern methods of plant analysis. V.H. Springer Verlag Heidelberg
Stumm, W. & J. J. Morgan, 1970. Aquatic Chemistry. Willey Interscience. New York. pp. 418–475.
Takahashi, M. & S. Ichimura, 1968. Vertical distribution and organic matter production of photosynthetic sulfur bacteria in Japanese lakes. Limnol. Oceanogr. 13: 644–645.
Takahashi, M. & S. Ichimura, 1970. Photosynthetic properties and growth of phototrophic sulfur bacteria in lakes. Limnol. Oceanogr. 15: 924–944.
Van Gemerden, H., 1967. On the bacterial sulfur cycle of inland waters. Thesis. University of Leiden.
Van Gemerden, H. & H. H. Beeftink, 1983. Ecology of phototrophic sulfur bacteria. In Ormerod, J. G. (ed) The phototrophic sulfur bacteria: anaerobic life in the light. pp. 146–185 Blackwell Sci. Pub., Oxford.
Verdouw, H. & E. M. J. Dekkers, 1980. Iron and manganese in lake Vechten (The Netherlands); dynamics and role in the cycle of reducing power. Arch. Hydrobiol. (89) 4: 509–522.
Vogel, A. I., 1978. Text-book of quantitative inorganic analysis (4th edition). Longman.
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Garcia-Gil, L.J., Sala-Genoher, L., Esteva, J.V. et al. Distribution of iron in Lake Banyoles in relation to the ecology of purple and green sulfur bacteria. Hydrobiologia 192, 259–270 (1990). https://doi.org/10.1007/BF00006020
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DOI: https://doi.org/10.1007/BF00006020