The Effect of Sand Mining and Irrigation Canals on Spawning Migration Labeobarbus spp. in Some Tributary Rivers of Lake Tana, Ethiopia
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सार
The effect of sand mining and irrigation canals on spawning migration of Labeobarbus species were studied from August 2013 to April 2014 in some tributary rivers of Lake Tana (Arno, Shini, Qimon and Chibirna Rivers). Labeobarbus specimens were collected using 6 and 8 cm monofilament gillnets, and 6, 8, 10 and 12 cm mesh size polyfilament gillnets. Total of 7623 juveniles fish specimens were collected from all sampling sites of irrigation canal using beach seine and mosquito nets with 5 mm and 2 mm mesh size, respectively. One way ANOVA was used to analyze the physico-chemical parameters and some biological factor of fishes. The abundance and distribution of adult migratory fish species were different between sand mining and non- sand mining tributary rivers of Lake Tana. Some physicochemical parameters were also showed significant difference between sand mining and non sand mining rivers (P<0.05). The most dominant juveniles in irrigation canal belong to the genus Labeobarbus which contributed 55.17% while Varicorhinus beso and Garra sp contributed 26.19% and 18.62%, respectively. No significant difference was detected in the abundance of juveniles between the two river irrigation canals. However, there were significant variations in juveniles mean abundances among the three sampling sites within the rivers. The present findings showed that small tributary rivers and streams are the main spawning grounds for Labeobarbus species of Lake Tana and downstream fish migration influenced by the river diversion. Therefore, main spawning grounds or routes should be protected from the deleterious effects of anthropogenic activities like irrigation and sand mining for the wise use of the fish resources.
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Abebe Getahun and Eshete Dejen. (2012). Fishes of Lake Tana: A Guide Book. Addis Ababa: Addis Ababa University Press (in press).
Abebe Getahun and Stiassny, M.L.J. (1998). The freshwater biodiversity crisis: the case of the Ethiopian fish fauna. SINET: Ethiop. J. Sci. 21(2): 207-230.
Abebe Getahun, Eshete Dejen, and Wassie Anteneh. (2008). Fishery studies of Ribb River, Lake Tana Basin, Ethiopia. A report submitted to the World Bank. Vol. 2:1573.
Claudio, O.S. (2002). Environmental impact of irrigation: a review. State of Washington, Water Research Center, Washington State University, Pullman Washington.
Dahal, K.R., Sharma, S., Sharma, C.M., Bajracharya, R.M. (2012). Effects of riverbed extraction on physico-chemical parameters of Tinau River, Nepal. International Journal of Development and Sustainability 1(2): 255-267.
de Graaf, M., Machiels, M., Tesfaye Wudneh, and Sibbing, F.A. (2003). Length at maturity and gillnet selectivity of Lake Tana’s 15 unique Barbus species: implications for management and conservation. Aquatic Ecosystem Health and Management 6: 325–336.
Dgebuadze, Y.Y., Mina, M.V., Alekseyev, S.S. and Golubtsov, A.S. (1999). Observations on the reproduction of the Lake Tana barbs. Journal of Fish Biology 54, 417–423.
Du Plessius, B.J. (2004). The application of triploid grass carp, as a biological control agent for the over-abundant growth of aquatic weeds in an irrigation canal system. MSc. Thesis, Rand Afrikaans University.
Duker, L. and Borre, L. (2001). Biodiversity conservation of the world's lakes: A preliminary framework for identifying priorities. LakeNet Report Series, Number 2. LakeNet Secretariat, Annapolis, Maryland USA.
Ghose, M.K. (1989). Land reclamation and protection of the environment from the effect of coal mining operation. Minetech 10(5): 35-39.
Gido K.B., Dodds, W.K. and Eberle, M.E. (2010). Retrospective analysis of fish community change during a half-century of land use and stream flow changes. Journal of North American Benthological Society 29: 970-987.
Gizachew Teshome, Abebe Getahun, and Minwyelet Mengsit (2015). Spawning migration of Labeobarbus species to some tributary rivers of Lake Tana, Ethiopia. Ethiop. J. Sci. and Technol. 8(1): 37-50.
Kai, L., Nguyen, S.K., Garraway, C., Arthur, R. and Kirkwood, G. (2000). Impacts of irrigation and aquaculture development on small-scale aquatic resources (R 7235), Draft Final Report to the Department for International Development Environment Research Program, pp.15-17/ 59.
King, A.J. and O’Connor, J.P. (2007). Native fish entrapment in irrigation systems: A step towards understanding the significance of the problem. Ecological Management and Restoration 8(1): 32–38.
Koehn, J., Stuart, I. and Crook, D. (2003). Linking the ecological importance of downstream fish movements to management of Murray-Darling Basin fish populations. Darling Basin. Murray-Darling Basin Commission, Canberra.
Kondolf, G.M., Smeltzer, M. and Kimball, L. (2002). Freshwater gravel mining and dredging issues. Center for Environmental Design and Research, University of California, Berkeley.
Kornfield, I. and Carpenter, K.E. (1984). Cyprinids of Lake Lanao, Philippines: taxonomic validity, evolutionary rates, and speciation scenarios. In Evolution of fish species flocks, (Echelle, A.A., and Kornfield, I., eds), pp. 69-83, Maine: Orono Press.
Lamb, H.F., Bates, C.R., Coombes,` P.V., Marshall, M.H., Umer, M., Davies, S.J. and Eshete Dejen. (2007). Late Pleistocene desiccation of Lake Tana, source of the Blue Nile. Quaternary Science Reviews 26, 287–299.
McCartney M, Alemayehu T, and Kebede S (2010). Evaluation of current and future water resources development in the Lake Tana Basin, Ethiopia. IWMI Research Report 134. International Water Management Institute, Colombo, Sri Lanka, 39 pp. DOI: 10.3910/2010.204.
Michel L (2000). *Dams and Fish Migration /Dams, ecosystem functions and environmental restoration/. Institut de Mecanique des Fluides, Toulouse, France Prepared for Thematic Review II.
MoWR (Ministry of water resource) (2010). Environmental and social impact assessment of about 20,000 ha irrigation and drainage schemes at megech pump (seraba), ribb and anger dam environmental and social impact assessment of the ribb irrigation and drainage project, Volume 2/2: Annexes (Final version).
Murdoch T. and Martha C. 1999. The Stream Keeper’s Field Guide: Watershed Inventory and Stream Monitoring Methods. A Product of the Adopt-A-stream Foundation. Everett, WA, 296 pp.
Nagelkerke, L.A.J. and Sibbing, F.A. (1996). Reproductive segregation among the large barbs (Barbus intermedius complex) of Lake Tana, Ethiopia. An example of intra lacustrine speciation? J. Fish. Biol. 49: 1244–1266.
Naveen S.M. 2012. Environmental impact of soil and sand mining: a review. International Journal of Science, Environment and Technology, 1(3): 125 – 134.
Palstra A.P., de Graaf, M. and Sibbing, F.A. 2004. Riverine spawning in a lacustrine cyprinid species flock, facilitated by homing? Animal Biology, 54, 393–415. Science ltd. Pp. 341.
Roberts, J.J. and Rahel, F.J. (2008). Irrigation canals as sink habitat for trout and other fishes in a Wyoming Drainage. Transactions of the American Fisheries Society 137: 951-961.
Shewit Gebremedhin. (2011). Spawning migration of Labeobarbus species of Lake Tana to Arno-Garno River, Lake Tana sub-basin, Ethiopia. MSc Thesis, Bahir Dar University, Ethiopia.
Tan, P.Y. and Rohasliney, H. (2011). Status of water quality subject to sand mining in Kelantan River, Kelantan. School of Health Sciences, Health Campus, University Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
Tesfate Wudneh. (1998). Biology and management of fish stocks in Bahir Dar Gulf, Lake Tana, Ethiopia. PhD thesis, Wageningen Agricultural University, The Netherlands.
Wassie Anteneh, Abebe Getahun and Eshete Dejen. (2008). The lacustrine species of Labeobarbus of Lake Tana (Ethiopia) spawning at Megech and Dirma Tributary Rivers. SINET: Ethiopian Journal of Science 31, 21-28.
Wassie Anteneh, Abebe Getahun and Eshete Dejen. (2013). Spawning migration of Lake Tana’s Labeobarbus spp. (Teleostei: Cyprinidae) up the Ribb River, Ethiopia. African Journal of Aquatic Science, 38,1-6.
Wassie Anteneh, Abebe Getahun, Eshete Dejen, Sibbing F. A., Nagelkerke L. A. J., de Graaf M., Tesfaye Wudneh, Vijverberg J. and Palstra A. P. 2012. Spawning migrations of the endemic Labeobarbus (Cyprinidae, Teleostei) species of Lake Tana, Ethiopia: status and threats. Journal of Fish Biology 81, 750–765.
Wassie Anteneh. (2005). The spawning migration and reproductive biology of Labeobarbus (Cyprinidae: Teleostei) of Lake Tana to Dirma and Megech Rivers, MSc Thesis, Addis Ababa University, Ethiopia.