Abstract
Dominant agricultural society of Nepal demonstrates the sign of compromises on its rural and virgin landscape. The current study investigates the fish base indices on some of its watershed. It is a proven fact that fish base variables such as species diversity and the abundance indicate the extent of impact by various disturbances on the ecological integrity of the river system. Three rivers, namely Jhikhukhola, Rapti and Tinau were studied to see the agricultural impact by taking fish species number and their abundance as the indicators in this work. The study was done for an academic purpose from 2003 to 2006 in which sampling was done using electro-fishing gear by standard wading method. Four replicates of sample taken in four major seasons were obtained in the field. Altogether, 10542 fishes of 24 genera and 34 species were captured during the entire sampling. The comparison of their distribution and abundance showed a clear sign of impact mainly on the downstream of the rivers indicating the rapid increase in unaccounted and indiscriminate use of agricultural inputs such as synthetic fertilizers and pesticides. This was further verified by nonparametric Kruskal-Wallis test which showed the significant variations in the impact on the downstream in major agricultural season.
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Balogh, S. J.; Huang, Y.; Offerman, H. J.; Meyer, M. L.; Johnson, D. K., (2003). Methylmercury in rivers draining cultivated watersheds. Sci. Total Environ., 304(1–3), 305–313 (9 pages).
Berg, H., (2000). Pesticide use in rice and rice-fish farms in the Mekong Delta, Vietnam. Crop. Prot., 20(10), 897–905 (9 pages).
Bohn, B. A.; Kershner, J. L., (2002). Establishing aquatic restoration priorities using a watershed approach. J. Environ. Manage., 64(4), 355–363 (9 pages).
Cowx, I. G.; Lamarque, P., (1990). Fishing with electricity, applications in freshwater fisheries management. Oxford. Fishing News Books, Blackwell Scientific Publications.
Day, F., (1878). Fishes of india being a natural history of the fishes known to inhabit the seas and freshwaters of India, Burma and Ceylon, Vols. I and II. Today and tomorrow book Agency, New Delhi.
De Oliveira Filho, E. C.; Lopes, R. M.; Paumgartten, F. J. R., (2004). Comparative study on the susceptibility of freshwater species to copper-based pesticides. Chemosphere, 56(4), 369–374 (6 pages).
Dorea, J. G., (2008). Persistent, bioaccumulative and toxic substances in fish: Human health considerations. Sci. Total Environ., 400(1–3), 93–114 (22 pages).
Fowlie, A. R.; Hodson, P. V.; Hickey, M. B. C., (2008). Spatial and seasonal patterns of Mercury concentrations in fish from the St. Lawrence river at Cornwall, Ontario: Implications for monitoring. J. Great Lakes Res., 34(1), 72–85 (14 pages).
Foy, R. H.; Kirk, M., (1996). Agriculture and water quality: A regional study. Int. J. Multiphas. Flow, 22(1), 124 (1 page).
Imam, E. H.; El Baradei, S. A., (2009). Impact of control structures on assimilative capacity of rivers and fish habitat. Int. J. Environ. Sci. Tech., 6(2), 315–324 (10 pages).
Jha, R. B., (2006). Fish ecological studies and its application in assessing ecological integrity of rivers in Nepal. Ph.D. dissertation. Kathmandu University, Dhulikhel, Nepal.
Johnson, R. A., (2004). Miller and Freund’s Probability and Statistics for Engineers. 6th Ed., Pearson Education Inc. New Jersey 07458, USA.
Kammerbauer, J.; Moncada, J., (1998). Pesticide residue assessment in three selected agricultural production systems in the Choluteca river basin of Honduras. Environ. Pollut., 103(2–3), 171–181 (11 pages).
Karr, J. R., (1981 ). Assessment of biotic integrity using fish communities. Fisheries, 6(6), 21–27 (7 pages).
Karr, J. R., (2000). Health, integrity and biological assessment: The importance of measuring whole things, in: Pimentel, D., Westra, L.; Noss, R. F. (Eds.), Ecological integrity: Integrating environment conservation and health, Island Press, Washington DC.
Karr, J. R.; Chu, E. W., (1995). Ecological integrity: Reclaiming lost connections, in: Westra, L., Lemons, J. (Eds.), Perspectives on ecological integrity, Kluwer Academic Publishers, The Netherlands.
Liang, Y.; Cheung, R. Y. H.; Wong, M. H., (1999). Reclamation of wastewater for polyculture of freshwater fish: Bioaccumulation of trace metals in fish. Water Res., 33(11), 2690–2700 (11 pages).
Lu, X. W.; Dang, Z.; Yang, C., (2009). Preliminary investigation of chloramphenicol in fish, water and sediment from freshwater aquaculture pond. Int. J. Environ. Sci. Tech., 6(4), 597–604 (8 pages).
McCarthy, L. H.; Stephens, G. R.; Whittle, D. M.; Peddle, J.; Harbicht, S.; LaFontaine, C.; Gregor, D. J., (1997). Baseline studies in the Slave river, NWT, 1990–1994: Part II. Body burden contaminants in whole fish tissue and livers. Sci. Total Environ., 197(1–3), 55–86 (32 pages).
Moiseenko, T. I.; Gashkina, N. A.; Sharova, Yu. N.; Kudryavtseva, L. P., (2008). Ecotoxicological assessment of water quality and ecosystem health: A case study of the Volga River. Ecotoxicol. Environ. Safe., 71(3), 837–850 (14 pages).
MOPE, (1998). State of the environment, Nepal (agriculture and forest). HMG/Ministry of population and environment, Kathmandu.
MOPE, (2001). State of the environment, Nepal (agriculture and forest). HMG/Ministry of population and environment, Kathmandu.
Noss, R. F., (1995). Ecological integrity and sustainability: Buzzword in conflict. Westra, L.; Lemons, J. (Eds.), Perspectives on ecological integrity, Kluwer Academic Publishers, The Netherlands.
Nouri, J.; Mahvi, A. H.; Jahed, G. R.; Babaei, A. A., (2008). Regional distribution pattern of groundwater heavy metals resulting from agricultural activities. Environ. Geol., 55(6), 1337–1343 (7 pages).
Oczkowski, A.; Nixon, S., (2008). Increasing nutrient concentrations and the rise and fall of a coastal fishery. A review of data from the Nile Delta, Egypt. Estuar. Coast. Shelf Sci., 77(3), 309–319 (11 pages).
Okafor, E. Ch., Opuene, K., (2007). Preliminary assessment of trace metals and polycyclic aromatic hydrocarbons in the sediments. Int. J. Environ. Sci. Tech., 4(2), 233–240 (8 pages).
Okoumassoun, L. E.; Brochu, C.; Deblois, C.; Akponan, S.; Marion, M.; Averill-Bates, D.; Denizeau, F., (2002). Vitellogenin in tilapia male fishes exposed to organochlorine pesticides in Oueme River in Republic of Benin. Sci. Total Environ., 299(1–3), 163–172 (10 pages).
Penczak, T., (2009). Fish assemblage compositions after implementation of the IndVal method on the Narew River system. Ecol. Model., 220(3), 419–423 (5 pages).
Sanchez, W.; Porcher, J. M., (2009). Fish biomarkers for environmental monitoring within the water framework directive of the European Union. In-situ trialing and validation of ecological and chemical water measurements. TrAC. Trend. Anal. Chem., 28(2), 150–158 (9 pages).
Shrestha, J., (1994). Fishes, fishing implements and methods of Nepal. Smt. M.D. Gupta, Lalitpur colony, Lashkar (Gwalior), India.
Shrestha, J., (2001). Taxonomic revision of fishes of Nepal. Jha, P. K.; Baral, S. R.; Karmacharya, S. B.; (Eds.), Environment and agriculture: Biodiversity, agriculture and pollution in South Asia, Ecological Society (ECOS), Kathmandu Nepal.
Soto-Galera, E.; Daz-Pardo, E.; Lopez-Lopez, E.; Lyons, J., (1998). Fish as indicators of environmental quality in the Rio Lerma Basin, Mexico. Aqua. Ecosys. Health Manage., 1(3–4), 267–276 (10 pages).
Suthar, S.; Singh, S., (2008). Vermicomposting of domestic waste by using two epigeic earthworms (Perionyx excavatus and Perionyx sansibaricus). Int. J. Environ. Sci. Tech., 5(1), 99–106 (8 pages).
Talwar, P. K.; Jhingran, A. G., (1991). Inland fishes of India and adjacent countries, Vol. 1 and 2. Oxford and IBH Publishing Company Pvt. Ltd., New Delhi.
Uriarte, A.; Borja, A., (2009). Assessing fish quality status in transitional waters, within the european water framework directive: Setting boundary classes and responding to anthropogenic pressures. Estuar. Coast. and Shelf Sci., 82(2), 214–224 (11 pages).
Vinodhini, R.; Narayanan, M., (2008). Bioaccumulation of heavy metals in organs of fresh water fish Cyprinus carpio (Common carp). Int. J. Environ. Sci. Tech., 5(2), 179–182 (4 pages).
Walters, D. M.; Roy, A. J.; Leigh, D. S., (2009). Environmental indicators of macroinvertebrate and fish assemblage integrity in urbanizing watersheds. Ecol. Indic., 9(6), 1222–1233 (12 pages).
Westra, L., (1995). Ecosystem integrity and sustainability: The foundational value of the wild. Westra, L.; Lemons, J. (Eds.), Perspectives on ecological integrity, Kluwer Academic Publishers, The Netherlands.
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Jha, B.R., Waidbacher, H., Sharma, S. et al. Study of agricultural impacts through fish base variables in different rivers. Int. J. Environ. Sci. Technol. 7, 609–615 (2010). https://doi.org/10.1007/BF03326170
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DOI: https://doi.org/10.1007/BF03326170