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Dam construction on rivers and streams provide desired benefi ts such as freshwater, hydroelectric power, and fish. Dam-related operation includes flow augmentation procedures such as flow regulation, flood releases or fluctuating flow releases, all of which have a detrimental impact on the downstream aquatic habitat like benthic macroinvertebrate zooplankton, phytoplankton and fish. In order to avoid negative impacts, a minimum flow release downstream of the dam is recommended. Minimum flow is the planned release of small amounts of water for ecological sustenance. During summer, the river to the downstream of the dam becomes dry which is detrimental from the fishery point of view, as the migration of the fi shes is disrupted. Fishes are accustomed to live in flowing river conditions, with their life cycle stages requiring the following factors: low silt content, well-oxygenated intra-gravel flows and minimum current, depth, velocity of water, dissolved oxygen. These factors are altered due to dam construction and restricted release of downstream flow. Fishes that feed on the invertebrate organisms like benthos and zooplankton are also affected by dammanipulated flow. In order to maintain the aquatic habitat downstream of the dam, authorities recommend minimum flow according to the habitat. The signifi cance of minimum flow is that it is needed to keep the streambed wet to an acceptable depth to support fish populations. This paper describes how minimum flow in the river, downstream of a dam, is the main requirement in the life cycle of fish with respect to feeding habit and reproduction. The paper also gives examples of various dam-related recommended flows with respect to the life cycle of the fish.
fish, life cycle, minimum flow
[1] Versar, Inc., A report on ‘Resolution of winter minimum fl ow issues at Conowingo Dam’, Maryland Department of Natural Resources, Power Plant Research Program, 1998.
[2] Welcomme, R.L., River fi sheries. FAO fi sheries technical paper 262. FAO, Rome, 1985.
[3] Hess, L.W., Schlesinger, A.B., Hergenrader, G.L., Reetz, S.D. & Lewis, H.S., The Missouri River study – ecological perspective. The Middle Missouri River, eds L.W. Hess, G.L. Hergenrader, H.S. Lewis, S.D. Reetz & A.B. Schlesinger, Missouri River Study Group. Nebraska Game and Parks Commission: Lincoln, Nebraska, USA, pp. 287–301, 1982.
[4] Ryder, R.A., Fish yield assessment of large lakes and reservoirs – a prelude to management. Ecology of Freshwater Fish Production, ed. S.A. Gerking, Blackwell Scientifi c Publications: London, UK, pp. 403–423, 1978.
[5] Brayshaw, J.D., The effect of the river on inland fi sheries. River Management, ed. P. Issac, pp. 102–118, 1966.
[6] Payne, R., The Canal Builders: The Story of Canal Engineers Through the Ages, Macmillan: New York, 1959.
[7] Stanford, J.A. & Ward, J.V., Stream regulation in North America. The Ecology of Regulated Rivers, eds J.V. Ward & J.A. Stanford, Plenum Publishing Corporation: New York, pp. 215–236, 1979.
[8] Benke, A.C., A perspective on America’s vanishing streams. J. N. Am. Bentho. Soc., 9, pp. 77–88, 1990.
[9] Verma, N.M.P., Dams and development in India: some social and economic implications. Water Resources and Sustainable Development, p. 55, 2005.
[10] A report by RSWML on ‘Fishery study: Allain Duhangan hydroelectric project’, Himachal Pradesh, India, 2003.
[11] Nehring, R.B., Evaluation of instream fl ow methods and determination of water quantity needs for the state of Colorado, Colorado Division of Wildlife for US Fish and Wildlife Service, Cooperative Instream Flow Service Group, Fort Collins, Colorado, USA, 1979.
[12] Nelson, J.S., Fishes of the World, 3rd edn, John Wiley & Sons Inc.: New York, 1994.
[13] Helfman, G.S., Callete, B.B. & Facey, D.E., The Diversity of Fishes, Blackwell Science, Inc.: Malden, MA, 1997.
[14] Brooker, M.P., The impact of impoundments on the downstream fi sheries and general ecology of rivers. Advances in Applied Biology, ed. M.P. Brooker, Academic Press: London, pp. 91–152, 1981.
[15] Rosenberg, D.M., Berkes, F., Bodaly, R.A., Hecky, R.E., Kelly, C.A. & Rudd, J.W.M., A large scale impacts of hydroelectric development. Environmental Review, 5, pp. 27–54, 1997.
[16] Swales, S., The use of in stream habitat improvement methodology. In mitigating the adverse effect of river regulation on fi sheries. Alternative in Regulated River Management, eds J.A. Gore & G.E. Petts, CRC Press: Boca Raton, FL, pp. 185–208, 1989.
[17] Poff, N.L., Allan, J.D., Bain, M.B., Karv, J.R., Prestegaard, K.L., Richter, B.D., Sparks, R.E. & Stromberg, J.C., The natural fl ow regime: a paradigm for river conservation and restoration. Bioscience, 47(II), pp. 769–784, 1997.
[18] Sparks, R.E., Nelson, J.C. & Yin, Y., Naturalization of the fl ood regime in regulated river: the case of the upper Mississippi River. Bioscience, 48(9), pp. 706–720, 1998.
[19] Casado, C., Garcia de Jalon, D., Del Olmo, C.M., Barcelo, E. & Menes, F., The effect of an irrigation and hydroelectric reservoir on its down stream communities. Regulated Rivers: Research and Management, 4(3), pp. 275–284, 1989.
[20] Zhong, Y. & Power, G., Environmental impacts of hydroelectric projects on fi sh resources in china. Regulated Rivers: Research and Management, 12(1), pp. 81–98, 1996.
[21] Petts, G.E., Impounded Rivers: Perspectives for Ecological Management, John Wiley & Sons: Chichester, UK, 1984.
[22] Welcomme, R.L., Flood plain fi sheries management. Alternative in Regulated River Management, eds J.A. Gore & G.E. Petts, CRC Press: Boca Raton, Florida, pp. 209–233, 1989.
[23] Liu, J.K. & Yu, Z.T., Water quality changes and effects on fi sh populations in the Hanjiang River, China, following hydroelectric dam construction. Regulated Rivers: Research and Management, 7(4), pp. 359–368, 1992.
[24] Thornton, K.W., Kimmel, B.L. & Payne, F.E., Reservoir limnology. Ecological Perspective, Wiley: New York, USA, 1990.
[25] Straskraba, M., Retention tome as keg variable in reservoir limnology. Theoretical Reservoir Ecology and Its Applications, eds J.G. Tundisi & M. Straskraba, Backhuys Publishers: Leiden, The Netherlands, 1999.
[26] Barrow, C.J., The environmental impacts of the Tucuri Dam on the middle and lower Tocantins River basin, Brazil. Regulated Rivers: Research and Management, 1(1), pp. 49–60, 1987.
[27] Stanford, J.A. & Ward, J.V., The Colorado River system. The Ecology of River Systems, eds B.R. Davies & K.F. Walker, Dr. W. Junk Publishers: Doedercht, The Netherlands, pp. 353–374, 1986.
[28] Armitage, P.D., Environmental changes induced by stream regulation and their effect on lotic macro-invertebrate communities. Regulated Rivers, eds A. Lillehammer & S.J. Saltveit, Universitetsforlaget AS: Oslo, pp. 139–166, 1984.
[29] Petts, G.E., Perspectives for ecological management of regulated rivers. Alternatives in Regulated River Management, eds J.A. Gore & G.E. Petts, CRC Press: Boca Raton, FL, pp. 3–24, 1989.
[30] Decamps, H., Biology of regulated rivers in France. Regulated Rivers, eds A. Lillehammer & S.J. Saltveit, Universitetsforlaget AS: Oslo, pp. 495–514, 1984.
[31] Bovee, K.D., A Guide to Stream Habitat Analysis Using the Instream Flow – Incremental Methodology, FWS/OBS-82/26, US Fish and Wildlife Service: Washington, DC, 1982.
[32] Tennant, D.L., Instream fl ow regimes for fi sh wildlife, recreation and related environmental resources. Fisheries, 1(4), pp. 6–10, 1976.
[33] Christie, R.W., Walker, P.T., Eversole, A.G. & Curtis, T.A., Distribution of spawning blueback herring on the west branch of Cooper River and the Santee River, South Carolina. Proc. Annu. Conf. SE Fish Wild Agencies, 35, pp. 632–640, 1981.
[34] Available at www.orovillerelicensing.water.ca.gov.
[35] Available at www.dgif.state.va.us/fi shing.
[36] Pelzmann, R.J., Causes and possible prevention of a riparian habitat encroachment and anandromous fi sh habitat. California Department of Fish and Game Environmental Services Branch Administrative Report 73-1. Sacramento California, 1973.
[37] Turner, R.M., Quantitative and historical evidence of vegetation changes along the upper Gila Rivers. Arizona US Geological Survey professional paper, Washington, DC, p. 655, 1974.
[38] California Resources Agency, Task force fi ndings and recommendations on sediment problems in the Trinity River near Lewiston and a summary of the watershed – investigation. California Resources Agency, 1970.
[39] US Fish and Wild Life Service, Final environmental impact statement on the management of river fl ow to mitigate the loss of anadromous fi shery of the Trinity River, California. US Fish and Wild Life Service, Sacramento, 1980.
[40] VTN Environmental Sciences, Final report: fi sh and wild life management options, Trinity River basin, North-western California. US Bureau of Reclamation, Mid Pacifi c Region, Sacramento, 1979.
[41] Frederiksen, Kamine and Associates, Proposed Trinity River basin fi sh and wildlife management program, US Bureau of Reclamation, Sacramento, California, 1980.
[42] Strand, R.I., Sediment transport studies, Trinity River below Lewiston Dam. US Bureau of Reclamation, Engineering Research Center, Denver, Colorado, p. 17, 1981.
[43] Available at www.nwcouncil.org.
[44] Available at www.cpw.org.nz.
[45] Available at www.grtu.org.
[46] Available at www.agfc.com.
[47] ASMFC, Fishery management plan for American shad and river herring. Atlantic States Marine Fisheries Commission Fisheries Management Report, 6, p. 369, 1985.
[48] Mansueti, R.J., Eggs, larvae, and young of the hickory shad, Alosa mediocris, with comments on its ecology in the estuary. Chesapeake Science, 3(3), pp. 173–205, 1962.
[49] Williams, R.O. & Bruger, E., Investigations on American shad in the St. Johns River. FL DNR, Marine Research Laboratory. Technical Series No. 66, St. Petersburg, Florida, 1972.
[50] Massman, W.H., Characteristics of spawning areas of shad, Alosa sapidissima (Wilson), in some Virginia streams. Trans. Am. Fish. Soc., 81, pp. 78–93, 1951.
[51] Crecco, V.A. & Savoy, T., Review of recruitment mechanisms of the American shad: the critical period and match-mismatch hypotheses reexamined. Am. Fish. Soc. Symposium 1, Bethesda, Maryland, pp. 455–468, 1987.
[52] Christie, R.W., Walker, P.T., Eversole, A.G. & Curtis, T.A., Distribution of spawning blueback herring on the west branch of Cooper River and the Santee River, South Carolina. Proc. Annu. Conf. SE Fish Wildl. Agencies, 35, pp. 632–640, 1981.
[53] Cooke, D.W. & Eversole, A.G., Effects of a river rediversion on fi sh passage and blueback herring landings in two South Carolina rivers. Anadromous Alosa Symposium, Tidewater Chapter, eds J.E. Cooper, R.T. Eades, R.J. Klauda & J.G. Loesch, Am. Fish. Soc. Bethesda, Maryland, pp. 113–118, 1994.
[54] Limburg, K.E., Growth and migration of 0-year American shad (Alosa sapidissima) in the Hudson River estuary: otolith microstructural analysis. Can. J. Fish. Aquat. Sci., 53, pp. 220–238, 1996.
[55] ASMFC, Amendment 1 to the fi shery management plan for shad and river herring. Atlantic States Marine Fisheries Commission Fisheries Management Rep. 35, 1999.
[56] United States Fish and Wildlife Service, National Marine Fisheries Service, and South Carolina Department of Natural Resources. Santee-Cooper Basin diadromous fi sh passage restoration plan, 2001.
[57] Kynard, B., Life history, latitudinal patterns, and status of short nose sturgeon. Environ. Biol. Fish, 48, pp. 319–334, 1997.
[58] McCord, J.W., Investigation of Fisheries Parameters for Anadromous Fishes in South Carolina. Completion Rep. to NMFS, Project No. AFC-53. SCDNR, Charleston, South Carolina, 2003.
[59] Secor, D.H. & Niklitschek, E.J., Hypoxia and Sturgeons. Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science. Solomons, Maryland, Technical Report Series No. TS-314-01-CBL. 2001.
[60] Cooke, D.W. & Leach, S.D., Santee River Sturgeon Studies: Santee Cooper FERC Studies. Report to South Carolina Public Service Authority, Moncks Corner, South Carolina, 2004.
[61] Jones, J.W. & King, G.M., Experimental observation on the spawning behavior of Atlantic salmon. Proc. Zool. Soc. Lond., 119, pp. 33–48, 1950.
[62] Brayshaw, J.D., The effects of river discharges on inland Fisheries. River Management, ed. P. Isaac, pp. 102–118, 1967.
[63] Sambrook, H. & Gilkes, P., Roadford reservoir – enhanced fl ows, fi sheries and hydroelectric power generation. Proc. of the 8th Conference of the British Dam Society, ed. T. Telford, London, pp. 119–133, 1994.
[64] Hauser, G.E. & Bender, M.P., TVA Tail water management for benefi cial uses: analysis of technical issue in tail water assessment. North American Lake Management Society Symposium, Vol. 9, pp. 17–34, 1990.