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.
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), DOI: 10.1016/S0048-9697(02)00577-6. Abstract | Full Text (419 K)
2.
Berg, H., (2000). Pesticide use in rice and rice-fish farms in
the Mekong Delta, Vietnam. Crop. Prot., 20 (10), 897-905 (9 Pages), DOI: 10.1016/S0261-2194(01)00039-4. Abstract | Full Text (203 K)
3.
Bohn, B. A.; Kershner, J. L., (2002). Establishing aquatic
restoration priorities using a watershed approach. J. Environ. Manage., 64 (4), 355-363 (9 Pages), DOI: 10.1006/jema.2001.0496. Abstract | Full Text (226 K)
4.
Cowx, I. G.; Lamarque, P., (1990). Fishing with electricity,
applications in freshwater fisheries management. Oxford. Fishing News Books, Blackwell Scientific Publications,
5.
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,
6.
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), DOI: 10.1016/j.chemosphere.2004.04.026. Abstract | Full Text (237 K)
7.
Dorea, J. G., (2008). Persistent, bioaccumulative and toxic
substances in fish: Human health considerations. Sci. Total Environ., 400 (1-3), 93-114 (22 Pages), DOI: 10.1016/j.scitotenv.2008.06.017. Abstract | Full Text (464 K)
8.
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)
9.
Foy, R. H.; Kirk, M., (1996). Agriculture and water quality:
A regional study. Int. J. Multiphas. Flow, 22 (1), 12
10.
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)Abstract | Full Text (206 K)
11.
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.
12.
Johnson, R. A., (2004). Miller and Freund’s Probability and
Statistics for Engineers. 6th Ed., Pearson Education Inc. New Jersey 07458, USA,
13.
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), DOI: 10.1016/S0269-7491(98)00125-0. Abstract | Full Text (573 K)
14.
Karr, J. R., (1981). Assessment of biotic integrity using fish
communities. Fisheries, 6 (6), 21-27 (7 Pages). Full Text (750 K)
15.
Karr, J. R., (2000). Health, integrity and biological
assessment: The importance of measuring whole things. Pimentel, D., Westra, L.; Noss, R. F. (Eds.), Ecological integrity: Integrating environment conservation and health, Island Press, Washington DC.
16.
Karr, J. R.; Chu, E. W., (1995). Ecological integrity:
Reclaiming lost connections. Westra, L., Lemons, J. (Eds.), Perspectives on ecological integrity, Kluwer Academic Publishers, The Netherlands,
17.
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), DOI: 10.1016/S0043-1354(98)00473-4. Abstract | Full Text
18.
Lu, X. W.; Dang, Z.; Yang, C., (2009). Preliminary
investigation of chloramphenicol in fish, water and
sediment from freshwater aquaculture pond. J. Environ. Sci. Tech., 6 (4), 597-604 (8 Pages)Abstract | Full Text (170 K)
19.
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), DOI: 10.1016/S0048-9697(96)05420-4. Abstract | Full Text (2672 K)
20.
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), DOI: 10.1016/j.ecoenv.2008.02.025. Abstract | Full Text (2503 K)
21.
MOPE, (1998). State of the environment, Nepal (agriculture
and forest). HMG/Ministry of population and environment, Kathmandu
22.
MOPE, (2001). State of the environment, Nepal (agriculture
and forest). HMG/Ministry of population and environment, Kathmandu,
23.
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,
24.
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), DOI: 10.1007/s00254-007-1081-3. Abstract | Full Text (498 K)
25.
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), DOI: 10.1016/j.ecss.2007.11.028. Abstract | Full Text (978 K)
26.
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)Abstract | Full Text (140 K)
27.
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), DOI: 10.1016/S0048-9697(01)01053-1. Abstract | Full Text (340 K)
28.
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), DOI: 10.1016/j.ecolmodel.2008.11.005. Abstract | Full Text (165 K)
29.
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), DOI: 10.1016/j.trac.2008.10.012. Abstract | Full Text (318 K)
30.
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.
31.
Shrestha, J., (1994). Fishes, fishing implements and methods of Nepal. Smt. M.D. Gupta, Lalitpur colony, Lashkar (Gwalior), India.
32.
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), DOI: 10.1080/14634989808656923. Abstract | Full Text (747 K)
33.
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)Abstract | Full Text (94 K)
34.
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 Abstract
35.
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. Shelf Sci., 82 (2), 214-224 (11 Pages), DOI: 10.1016/j.ecss.2009.01.008. Abstract | Full Text (452 K)
36.
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)Abstract | Full Text (81 K)
37.
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), DOI: 10.1016/j.ecolind.2009.02.011. Abstract | Full Text (362 K)
38.
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 Abstract
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