Abstract
The Brahmaputra changes its course and pattern along with its current flow very frequently especially in its upper stretches and this has a strong bearing on its hydrobiology. The hydro-geological pattern of the Brahmaputra has resulted in a possible zonation of the river into five major types of fish habitat. Altogether 167 fish species have been recorded from the upper Brahmaputra of which about 30 percent may be considered as ornamental varieties. Again, according to their seasonal availability, the fish fauna has been grouped into four principal categories. Among all the hydrological factors, flood impulse is probably the strongest factor that regulates other limnological conditions and faunal distribution. Usually, there are three or four high floods between May and October and fish migration is intimately related to this flood regime. During the dry season fishing is mostly restricted to near the confluents of tributaries or channels and also at river meanders. However, large-scale felling of trees in the catchment areas and construction of embankments along the river banks have altered the riverine ecosystem drastically, as a result of which, the river has become heavily silted and the connecting channels of the floodplain lakes are also dammed. Consequently, fishes and other megafauna are deprived of adequate water cover, food supply and breeding grounds. An ecohydrological approach has been advocated for habitat restoration.
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References
APHA (1992) Standard Methods for the Examination of Water and Waste Water, 14th edition. Washington, DC: AmericanPublic Health Association.
Bailey, N.T.J. (1994) Statistical Methods in Biology, 3rd edition. Great Britain: Cambridge UniversityPress.
Bishop, K.A. and Forbes, M.A. (1991) The freshwater fishes of northern Australia. In Monsoonal Australia: Landscape, Ecology andMan in the Northern Lowlands (C.D. Haynes, M.G. Ridpath and M.A. Williams, eds.) pp. 79–108. Rotterdam: A.A. Balkema.
Biswas, S.P. (1982) Studies on certain aspects of the biology of Labeo pangusia and L. dero from north-eastern India. Ph.D. thesis, North EasternHill University.
Biswas, S.P. (1993) Manual of Methods in Fish Biology. New Delhi: South Asian Publishers.
Biswas, S.P. (1996)Global water scarcity: Issues and implication with special reference to India. Verh. Inter. Verein. Limnol. 26, 115–21.
Biswas, S.P.(1998) Ecology of chars or river islands of the Brahmaputra with special reference to Fisheries. Final Technical Report submitted to the Ministry of Environment and Forests, Govt. of India, New Delhi, 55 pp.
Biswas, S.P., Baruah, D. and Hazarika, A. (2000) An experimental study of soilconservation using herbaceous plants in Majuli Island, Assam, India. The Environmentalist 20, 19–27.
Biswas, S.P. and Phukon, H.K.(1986) Problems of fisheries in north-eastern India. Proc. 6th All India Seminar on Ichthyology, Manipur Univ., 21-24 Dec. 1986. (Abst.)
Biswas, S.P. and Michael, R.G. (1992) Fishery characteristics and the present status of Fisheries of the River Brahmaputra. Proc. Seminar onConservation of River Dolphin in Indian Sub-continent, New Delhi, 18-19 Aug., 1986.
Biswas, S.P. and Boruah, S. (2000a) Ecology of theRiver Dolphin (Platanista gangetica) in the Upper Brahmaputra. Hydrobiologia 430, 97–111.
Biswas, S.P. and Boruah, S. (2000b)Fisheries ecology of the north-eastern himalayas with special reference to the Brahmaputra River. Ecol. Eng. 16, 39–50.
Biswas, S.P., Borbora, S.H. and Dutta, B.C. (1995) Present status of capture fisheries in the upper stretches of the Brahmaputra. Bull. LifeSciences 5, 31–40.
Boruah, S. (1999) Investigation on certain aspects of hydrobiology in relation to fisheries in the upper stretches of theRiver Brahmaputra. Ph.D. thesis, Dibrugarh University.
Cadwallander, P. (1986) Fish of the Murray-Darling system. In The Ecology of RiverSystems. (B.R. Davies and K.F. Walker, eds.) pp. 679–94. Dordrecht: Dr. W. Junk Publishers.
Capone, T.A. and Kushlan, J.A.(1991) Fish community structure on dry season steam pools. Ecology 72, 983–92.
Chandra, R. (1988) Riverine fisheries resourcesof the Ganga and the Brahmaputra. Lecture delivered in the Summer Institute on ‘Resource Management and Conservation of Inland Capture Fisheries of India’, 4-23 July 1988. CICFRI, Barrackpore.
Edmondson, W.T. (1959) Freshwater Biology, 2nd edition. New York: John Wiley and Sons, Inc.
Gorman, O.T. and Karr, J.R. (1978) Habitat structure and stream fish communities. Ecology 59,507–15.
Goswami, D.C. (1985) Brahmaputra river, Assam, India: Physiography, basin denudation and channel aggradation. Wat. Resour.Res. 21(7), 959–78.
Grossman, G.D., Moyle, P.B. and Whittaker, J.O. (1982) Stochasticity in structural and functional characteristicsof an Indiana stream fish assemblage: A test of community theory. Am. Nat. 120, 423–54.
Gulland, J.A. (1975) Manual of Methodsfor Fisheries Resource Survey and Appraisal. Part 5. Objectives and basic methods, FAO Fish. Tech. Pap. No. 145.
Huet, M. (1959)Profiles and biology of Western European streams as related to fish management. Trans. Am. Fish. Soc. 88, 153–63.
Junk, W.J., Bayley, P.B. and Sparks, R.E. (1989) The flood pulse concept in river-floodplain systems. In Proc. International Large River Symposium (LARS) (D.P. Dodge, ed.) Can. Spl. Publ. Fish. Aquat. Sci.
Lowe-McConnell, R.H. (1987) Ecological Studies in Tropical FishCommunities. London: Cambridge University Press.
Magurran, A.E. (1988) Ecological Diversity and Its Measurement.Australia: Croom Helm.
Margalef, R. (1957) La Teoria de la Informacion en Ecologia. Mems. R. Acad, Cienc. Artes, Barcelona. (3V),32(13), 79 p.
Motwani, M.P., Jayaram, K.C. and Sehgal, K.L. (1962) Fish and fisheries of Brahmaputra River system, Assam 1. Fishfauna with observations on their zoo-geographical significance. Trop. Ecol. 3(1-2), 17–23.
Pusey, B.J., Arthington, A.H. and Read, M.G. (1993) Spatial and temporal variation in fish assemblage structure in the Mary river, south-east Queensland: The influence of habitat structure. Env. Biol. Fish. 37, 355–80.
Rao, K.L. (1979) India' Water Wealth. Its Assessment, Uses and Projections. New Delhi: Orient Longman Ltd.
Schlosser, I.J. (1982) Fish community structure and function along two habitat gradients in a headwater stream.Ecol. Monog. 52, 395–414.
Schlosser, I.J. (1985) Flow regime, juvenile abundance and the assemblage structure of stream fishes.Ecology 66, 1484–90.
Shannon, C.E. and Wiener, W. (1963) The Mathematical Theory of Communication. Urbania,Illinois: University of Illinois Press.
Singh, S.P., Mehrotra, S.N., Yadava, Y.S., Choudhury, M., Biswas, B.K. and Biswas, D.K. (1988)Investigation on factors relating to decline of fishery in the River Brahmaputra and its tributaries. Annual Report, CICFRI, Barrackpore.
Staub, R., Appling, J.W., Hofsterder, A.M. and Hass, I.J. (1970) The effects of industrial wastes of Memplis and Shelby country on primaryplanktonic producers. Biosciences 20, 905–12.
Talwar, P.K. and Jhingran, A.G. (1991) Inland Fishes of India and AdjacentCountries, (vols. 1 and 2). New Delhi: Oxford and IBH.
Trivedy, R.K., Goel, P.K. and Trisal, C.L. (1987) Practical Methods inEcology and Environmental Science. Karad (India): Enviro Media Publication.
Vannote, R.L., Minshall, G.W., Cummins, K.W., Sedell, J.R.and Cushing, C.E. (1980) The river continuum concept. Can. Spl. Publ. Fish. Aquat. Sci. 37, 130–7.
WAPCOS (1993)Morphological Studies of River Brahmaputra. New Delhi: N.E. Council, Water and Power Consultancy Services (India).
Welcomme, R.L.(1992) River conservation-future prospects. In River Conservation and Management (P.J. Boon, P. Calow and G.E. Petts, eds.) pp. 454–62. Chichester: John Wiley and Sons.
Wootton, R.J. (1990) Ecology of Teleost Fishes. London, UK: Chappman and Hall.
Yadava, Y.S. and Chandra, R. (1994) Some threatened carps and catfishes of Brahmaputra river system. In Threatened Fishes of India (P.V. Dehadrai, P. Das and S.R. Verma, eds.) vol. 4, pp. 45–55. Muzaffarnagar: Natcon Publication.
Yant, P.R., Karr, J.R. and Angermeier, P.L. (1984) Stochasticity in stream fish communities: an alternative interpretation Amer. Nat. 124, 573–82.
Zalewski, M., Bis, B., Lapinska, M., Frankiewicz, P. and Puchalski, W. (1998) The importance of the riparian ecotone and river hydraulics forsustainable basin-scale restoration scenarios. Aquatic Conserv: Mar. Freshw. Ecosyst. 8, 287–307.
Zalewski, M., Janauer, G.A. and Jolankai, G. (1997) Ecohydrology: A New Paradigm for Sustainable Use of Aquatic Resources. Paris: International Hydrological Programme, UNESCO, Technical Document No. 7.
Zalewski, M. and Naiman, R.J. (1985) The regulation of riverine fish communities by acontinuum of abiotic-biotic factors. In Habitat Modification and Freshwater Fisheries (J.S. Alabaster, ed.) pp. 3–9. London: Butterworths.
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Boruah, S., Biswas, S. Ecohydrology and fisheries of the upper Brahmaputra basin. The Environmentalist 22, 119–131 (2002). https://doi.org/10.1023/A:1015369313873
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DOI: https://doi.org/10.1023/A:1015369313873