Required flows for aquatic ecosystems in Ma River, Vietnam

Required flows for aquatic ecosystems in Ma River, Vietnam ( Vol-2,Issue-6,November - December 2017 )

Author: Luong Ngoc Chung, Nguyen Thi Kim Cuc, Trieu Anh Ngoc, Nguyen Thanh Nam, Le Viet Son, Tran Viet On

ijeab doi crossref DOI: 10.22161/ijeab/2.6.37

Keyword: Ma River, Minimum Annual Low Flow – MALF, Required flows, River HYdraulic and HABitat SImulation Model – RHYHABSIM, Weighted Useable Area –WUA.

Abstract: Ecological flow requirements for the Ma River in dry season were assessed in three reaches of Ma – Buoi, Ma – Len and Ma – Chu. 5 indictor fish species was chosen based on biodiversity survey and roles of those species in aquatic ecosystem as well as local communities. Biological and hydrological data (dry season of 2016- 2017) and 35 year recorded hydrological data were collected and analyzed as input data for a physical habitat model River HYdraulic and HABitat SImulation Model – RHYHABSIM. Model results shown that the optimal flows of the reaches were very much higher compare with the minimum annual low flow - MALF. In this study, MALF7day were applied to calculate the recommended minimum flows of the three reaches. The recommended required minimum flows for Ma – Buoi, Ma – Len and Ma – Chu reaches were 51 m3/s, 49 m3/s and 61 m3/s, respectively. It must be stressed that this study only assessed whether or not there is enough habitat available for the river to sustain a healthy ecosystem.


[1] C. J. Gordon, N.D., T.A. McMahon, Finlayson, B.L., Gippel and and R. J. Nathan, Stream Hydrology: An introduction for ecologists. 2004.
[2] B. Hunt, B., Weir, J. and Clausen, “A stream depletion experiment,” Ground Water, vol. 39, no. 2, pp. 283–289, 2001.
[3] K. R. Nyholm, T., Christensen, S., and Rasmussen, “Flow depletion in a small stream caused by ground water abstraction from wells.,” Ground Water, vol. 40, no. 4, pp. 425–437, 2002.
[4] P. Thorn and J. Conallin, “RHYHABSIM as a Stream Management Tool: Case Study in the River Kornerup Catchment, Denmark,” J. Transdiscipl. Environ. Stud., vol. 5, no. 1, pp. 1–2, 2006.
[5] I. G. Jowett, “Instream fl ow methods: A comparison of approaches: Regulated Rivers,” Res. Manag., vol. 13, pp. 115–127, 1997.
[6] K.. Bovee, “A guide to instream habitat analysis using the instream fl ow incremental methodology,” Instream Flow Inf. Pap. Fort Collins, U.S. Fish Wildl. Serv., vol. 12, 1982.
[7] T. W. Milhous, R. T., D. L. Wegner, “Users guide to the Physical Habitat Simulation System (PHABSIM).,” Instream Flow Inf. Pap. Fort Collins, U.S. Fish Wildl. Serv. (FWS/OBS/81/13)., vol. 11, 1984.
[8] I. G. Jowett, River hydraulic and habitat simulation, RHYHABSIM computer manual., vol. New Zealan. 1989.
[9] A. Bovee, K. D., B. L. Lamb, J. M. Bartholow, C. B. Stalnaker, J. G. Taylor and J. Henriksen, “Stream habitat analysis using the instream flow incremental methodology. U.S.,” Geol. Surv. Inf. Technol. Rep. 1998-0004, Fort Collins, Color., 1998.
[10] R. M. Jowett, I., T. Payne, “SEFA–system for environmental flow analysis: software manual version 1.21.,” Available: (March 2016)., 2014.
[11] W. Bank, Environmental Assessment (EA) Viet Nam Managing Natural Hazards Project (VN-Haz/WB5), vol. E2993. 2017, p. 18.
[12] J. Hay, “Review of Hawke‟s Bay Regional Council‟s Instream Habitat Modelling on the Lower Tukituki River.,” Prep. Hawke‟s Bay Reg. Counc. Cawthron Rep. No. 1542, 2008.
[13] J. Hay, “Instream Flow Assessment for the Lower Ruamahanga River,” Prep. Gt. Wellingt. Reg. Counc. Cawthron Rep. No. 1403., 2008.
[14] K. Johnson, “Tukituki River Rhyhabsim and Water Temperature Assessments Tukituki River Rhyhabsim and Water Temperature Assessments Minimum Flow and Water Temperature Assessments,” 2013.
[15] B. Clausen and I. G. Jowett, “Guide for the RHYHABSIM program,” pp. 1–14, 1998.
[16] I. G. Jowett, “Survey and analysis of instream habitat,” in Computer Manuel, Revised by., NIWA, Hamilton. New Zealand., 1998.
[17] M. and J. F. Kottelat, Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin, 2007.
[18] K. H. Alikunhi, “Synopsis of biological data on common carp Cyprinus carpio (Linnaeus), 1758 (Asia and the Far East),” FAO Fish. Synop, vol. 31, no. 2, p. 39, 1966.
[19] I. F. Pravdin, A Guide of Fish Study. Science and Technics Publishing House, Hanoi, 1963.
[20] N. H. D. Nguyen Dinh Vinh, Tran Thi Thuy Ha, Tran Duc Hau, “Morphological and Molecular Identification of species of Catfish Genus Cranoglanis from Lam River, Nghe An, Vietnam,” Biol. Forum–An Int. J., vol. 9, no. 2, pp. 37–43, 2017.
[21] H. H. and M. K. Ng, “Cranoglanis henrici (Vaillant, 1893), a valid species of cranoglanidid catfish from Indochina (Teleostei, Cranoglanididae),” Zoosystema, vol. 22, no. 4, pp. 847–852, 2000.
[22] T. T. B. Dong Quoc Trinh, “Study on several rproductive biological characteristics of armorhead catfish (Cranoglanis henrici Vaillant, 1893),” J. Fish. Sci. Technol. Nha Trang Univ., vol. 2, pp. 78–82, 2013.
[23] I. J. and H. S. Harrison, “Order Mugiliformes. Mugilidae. Mullets,” in FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 4. Bony fishes part 2 (Mugilidae to Carangidae). FAO, Rome, K. E. C. and V. H. Niem, Ed. 1997, pp. 2069–2108.
[24] C. M. and D. E. R. Breder, Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey, 1966.
[25] H. H. Ng, Eleotris fusca. The IUCN Red List of Threatened Species 2012: e.T166077A1109943. 2012.
[26] N. Y. and K. T. Ken Maeda, “Size and age at recruitment and spawning season of sleeper, genus eleotris (Teleostei: Eleotridae) on Okinawa Island. Sourthern Japan,” Raffles Bul. Zool., vol. Supplement, no. 14, pp. 199–207, 2007.
[27] S. H. M. and M. A. Allen, G.R., Field guide to the freshwater fishes of Australia. Western Australian Museum, Perth, Western Australia., 2002.
[28] R. Pethiyagoda, Freshwater fishes of Sri Lanka. The Wildlife Heritage Trust of Sri Lanka, Colombo., 1991.
[29] W. J. Rainboth, Fishes of the Cambodian Mekong. FAO species identification field guide for fishery purposes. FAO, Rome, 1996.
[30] J. S. Larson, H., Britz, R. & Sparks, Glossogobius giuris. The IUCN Red List of Threatened Species 2016: e.T166533A19011337. 2016.
[31] Qambrani GR, Soomro AN, Palh ZA, Baloch WA, Tabasum S, “Reproductive Biology of Glossogobius giuris (Hamilton), in Manchar Lake Sindh, Pakistan.,” J Aquac Res Dev., vol. 6, p. 392, 2015.
[32] J. H. & L. K. John W. Hayes, Eric Goodwin, Karen A. Shearer, “Can Weighted Useable Area Predict Flow Requirements of Drift-Feeding Salmonids? Comparison with a Net Rate of Energy Intake Model Incorporating Drift–Flow Processes,” Trans. Am. Fish. Soc., vol. 145, no. 3, 2016.
[33] R. Henderson, Relationships between 1-day and 7-day MALF in the Horizons Region Relationships between 1-day and 7-day MALF in the Horizons Region Horizons Regional Council ( funded by EnviroLink ( FRST ), project managed by Jon Roygard and, no. October. 2008.
[34] Mike Thompson, “Minimum flow recommendations for the Wellington region. Technical report to support the Proposed Natural Resources Plan,” 2015.
[35] Lonelyplanet, “Map of Vietnam.” [Online]. Available:

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