Abstract
Changes in physicochemical conditions and lotic benthic macroinvertebrates along the recovery gradient of the impounded Colorado (USA) and Duratón (Spain) Rivers were examined to identify and compare major factors affecting the structure of the macrobenthic community. Although both impounded rivers were exposed to hypolimnial releases from dams, they exhibited different impoundment use; Granby Dam (Colorado River) is used for water storage whereas Burgomillodo Dam (Duratón River) is used for hydroelectric production. The major factor responsible for macroinvertebrate responses in the Colorado River appeared to be the anomalous temperature pattern caused by Granby Dam, with relatively cool temperatures during the summer and relatively warm temperatures during the winter. In contrast, the major factors responsible for macroinvertebrate responses in the Duratón River seemed to be short-term flow fluctuations and low oxygen concentrations caused by Burgomillodo Dam. Values of taxonomic richness and relative abundances of shredders (Colorado River) and scrapers (Duratón River) increased along the recovery gradient of the impounded rivers. In general, chironomids (Diptera) were tolerant to both types of impoundment use, whereas elmids (Coleoptera) and psychomyiids (Trichoptera) were very sensitive. Overall, this environmental monitoring study denotes that the downstream changes in the biotic and abiotic components of impounded rivers is a function of the particular use of impoundments.
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References
Alabaster, J. S. and Lloyd, R.: 1980, Water Quality Criteria for Freshwater Fish, Butterworths, London.
A.P.H.A.: 1980, Standard Methods for the Examination of Water and Wastewater, 15th ed., APHAAWWAWPCF, Washington, DC.
A.S.T.M.: 1993, Standards on Aquatic Toxicology and Hazard Evaluation, American Society for Testing and Materials, Philadelphia.
Becker, G.: 1987, ‘Net-building behaviour, tolerance and development of two caddisfly species from the river rhine (Hydropsyche contubernalis and H. pellucidula) in relation to the oxygen content’, Oecologia 73, 242–250.
Boon, P. J.: 1988, ‘The impact of river regulation on invertebrate communities in the U.K.’, Regul. Riv. 2, 389–409.
Brittain, J. E. and Saltveit, S. J.: 1989, ‘A review of the effect of river regulation on mayflies (ephemeroptera)’, Regul. Riv. 3, 191–204.
Camargo, J. A.: 1996, ‘Spatiotemporal variations in species diversity to assess environmental impacts on aquatic communities: the use of biomass data versus density data’, Environ. Monit. Assess. 40, 125–136.
Camargo, J. A. and García de Jalón, D.: 1995, ‘Structural and trophic changes in a riverine macrobenthic community following impoundment for hydroelectric power generation’, J. Freshwat. Ecol. 10, 311–317.
Craig, J. F. and Kemper, J. B.: 1987, Regulated Streams: Advances in Ecology, Plenum Press, New York.
García de Jalón, D. and Gonzalez del Tánago, M.: 1986, Métodos Biológicos para el Estudio de la Calidad de las Aguas: Aplicación a la Cuenca del Duero, Monografía 45, ICONA Press, Madrid.
García de Jalón, D., Sanchez, P. and Camargo, J. A.: 1994, ‘Downstream Effects of a New Hydropower Impoundment on Macrophyte, Macroinvertebrate and FishCommunities’, Regul. Riv. 9, 253–261.
Hellawell, J. M.: 1986, Biological Indicators of Freshwater Pollution and Environmental Management, Elsevier, London.
Hemphill, N.: 1988, ‘Competition between two stream dwelling filter-feeders, Hydropsyche oslary and Simulium vigratum’, Oecologia 77, 73–80.
Hersey, A. E. and Hiltner, L.: 1988, ‘Effects of a caddisfly on black fly density: interspecific interactions limit black flies in an arctic river’, J. N. Am. Benthol. Soc. 7, 188–196.
Merritt, R. W. and Cummins, K. W.: 1984, An Introduction to the Aquatic Insects of North America, Kendall/Hunt, Dubuque.
Minshall, G. W., Cummins, K. W., Petersen, R. C., Cushing, C. E., Bruns, D. A., Sedell, J. R. and Vannote, R. L.: 1985, ‘Developments in stream ecosystem theory’, Can. J. Fish. Aquat. Sci. 42, 1045–1055.
Moog, O.: 1993, ‘Quantification of daily peak hydropower effects on aquatic fauna and management to minimize environmental impacts’, Regul. Riv. 8, 5–14.
M.O.P.U.: 1980, Resumen del Reconocimiento Limnológico de Embalses, Centr. Pub.MOPU, Madrid.
Naiman, R. J., Magnuson, J. J., McKnight, D. M. and Stanford, J. A.: 1995, ‘Freshwater ecosystems and their management: A national initiative’, Science 270, 584–585.
Pennak, R.W.: 1977, ‘Trophic variables in Rocky Mountain streams’, Arch. Hydrobiol. 80, 253–285.
Petts, G. E.: 1984, Impounded Rivers, Wiley, Chichester.
Petts, G. E.: 1989, ‘Perspectives for Ecological Management of Regulated Rivers’, in: Gore, J. A. and Petts, G. E. (eds.), Alternatives in Regulated River Management, CRC Press, Boca Raton (FL), pp. 3–24.
Rabeni, C. F., Davies, S. P. and Gibbs, K. E.: 1985, ‘Benthic invertebrate response to pollution abatement: structural changes and functional implications’, Water Resour. Bull. 21, 489–497.
Rader, R. B. and Ward, J. V.: 1988, ‘Influence of regulation on environmental conditions and the macroinvertebrate community in the upper Colorado River’, Regul. Riv. 2, 597–618.
Sokal, R. R. and Rohlf, F. J.: 1987, Introduction to Biostatistics, 2nd ed., Freeman, New York.
Stanford, J. A. and Ward, J. V.: 1986, ‘The Colorado River System’, in: Davies, B. R. and Walker, K. F. (eds.), The Ecology of River Systems, Dr. W. Junk Publishers, Dordrecht, pp. 353–374.
Tachet, H., Bournaud, M. and Richoux, P.: 1981, Introduction à l’ Étude des Macroinvertebrés des Eaux Douces, L' Association Française de Limnologie, Paris.
Thorp, J. H. and Covich, A. P.: 1991, Ecology and Classification of North American Freshwater Invertebrates, Academic Press, San Diego.
Vannote, R. L. and Sweeney, B. W.: 1980, ‘Geographic analysis of thermal equilibria: A conceptual model for evaluating the effect of natural and modified thermal regimes on aquatic insect communities’, Am. Nat. 115, 667–695.
Vannote, R. L., Minshall, G. W., Cummins, K. W., Sedell, J. R. and Cushing, C. E.: 1980, ‘The river continuum concept’, Can. J. Fish. Aquat. Sci. 37, 130–137.
Voelz, N. J. and Ward, J. V.: 1989, ‘Biotic and abiotic gradients in a regulated high elevation Rocky Mountain river’, Regul. Riv. 3, 143–152.
Voelz, N. J. and Ward, J. V.: 1991, ‘Biotic responses along the recovery gradient of a regulated stream’, Can. J. Fish. Aquat. Sci. 48, 2477–2490.
Ward, J. V.: 1985, ‘Thermal characteristics of running waters’, Hydrobiologia 125, 31–46.
Ward, J. V.: 1986, ‘Altitudinal zonation in a Rocky Mountain stream’, Arch. Hydrobiol./Suppl. 74, 133–199.
Ward, J. V. and Stanford, J. A.: 1979, The Ecology of Regulated Streams, Plenum Press, New York.
Ward, J. V. and Stanford, J. A.: 1982, ‘Thermal responses in the evolutionary ecology of aquatic insects’, Annu. Rev. Entomol. 27, 97–117.
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Camargo, J.A., Voelz, N.J. Biotic and Abiotic Changes Along the Recovery Gradient of Two Impounded Rivers with Different Impoundment Use. Environ Monit Assess 50, 143–158 (1998). https://doi.org/10.1023/A:1005712024049
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DOI: https://doi.org/10.1023/A:1005712024049