Journal of Resources and Ecology >
Identification and Validation of Reference Sites in the Andhi Khola River, Nepal
Received date: 2013-05-27
Revised date: 2014-10-15
Online published: 2015-01-18
Supported by
this study was funded by the Kathmandu University, Nepal and the Royal Norwegian Government (FFDN-NPL 100062).
Reference conditions having no or only minor anthropogenic disturbances, are a basic requirement for ecological studies in rivers. To study ecological impact of a dam, two sites were pre-classified as reference or least disturbed in the Andhi Khola River, Nepal, using Rapid Field Bioscreening (RFB) protocol. Biological (macroinvertebrates) and physico-chemical samples were collected in the month of January and February 2013. Multi-habitat sampling (MHS) was employed in sample collection of macro-invertebrates fauna. Validation of the pre-classified sites was done using several indices viz. Nepalese biotic score (NEPBIOS), Biological monitoring working party (BMWP), Hindu-Kush Himalayan biotic score (HKHBIOS), Hilsenhoff (HILSENHOFF) & National Sanitation Foundation Water Quality Index (NSFWQI). The NEPBIOS, HKHBIOS, HILSENHOFF, RFB & NSFWQI indices predicted the river quality at all two sites as good with quality class II. Only BMWP/ASPT water quality index predicted the river quality at all two sites as Excellent with quality class I. Hence preselected sites with quality of rank II i.e. good qualities were validated as reference sites. The study demonstrated that the multi-metric approach is suitable for application in the monitoring and assessment of rivers where dams are built to produce hydropower.
Key words： macro-invertebrates; indices; validation; reference; dams
Praveen SHARMA, Subodh SHARMA, Smriti GURUNG . Identification and Validation of Reference Sites in the Andhi Khola River, Nepal[J]. Journal of Resources and Ecology, 2015 , 6(1) : 30 -36 . DOI: 10.5814/j.issn.1674-764x.2015.01.004
APHA. 1998. Standard methods for the examination of water and wastewater (20th edition). Washington, D.C.: American Public Health Association.
Bailey R C, R H Norris and T B Reynoldson. 2004. Bioassessment of freshwater ecosystems using the reference condition approach. Kluwer Academic Publishers, Boston.
Chaves M L, J L Costa, P Chainho, et al. 2006. Selection and validation of reference sites in small river basins. Hydrobiologia, 573:133-154.
Economou A N. 2002. Defining reference conditions (D3). Development, Evaluation & Implementation of a Standardised Fish-based Assessment Method for the Ecological Status of European Rivers-A Contribution to the Water Framework Directive. Institute for Hydrobiology and Aquatic Ecosystem Management, University of Natural Resources and Applied Life Sciences, Vienna.
Etten J V, B V Koppen, S Pun. 2002. Do equal land and water rights benefit the poor? Targeted irrigation development: The case of the Andhi Khola irrigation scheme in Nepal. Working Paper 38. Colombo, Sri Lanka: International Water Management Institute.
Feld C K, M Tangelder, M J Klomp, et al. 2010. Comparison of river quality indices to detect the impact of organic pollution and water abstraction in Hindu Kush-Himalayan rivers of Nepal. Journal of Wetlands Ecology, 4:112-127.
Fernandes C V. 1997. Guía Metodológica para la Evaluación del Impacto Ambiental. Anexo 3. Estudio de factores medioambientales (3rd edition). Mundi Prensa, Madrid España.
Hartmann A and O Moog. 2008. Development of a field screening methodology to evaluate the ecological status of the streams in the HKH region. In: Moog O, D Hering, S Sharma, et al. (Eds.). ASSESS-HKH: Proceedings of the Scientific Conference “Rivers in the Hindu Kush- Himalaya—Ecology & Environmental Assessment”, 17-24.
Hartmann A, O Moog and I Stauber. 2008. “HKH Screening”: A rapid field bio-assessment to evaluate the ecological status of streams in the Hindu Kush-Himalayan region. Hydrobiologia, 651(1):25-37.
Hawkes H A. 1997. Origin and development of the biological monitoring working party score system. Water Research, 32(3), 964-968.
Hawkins C P, J R Olson and R A Hill. 2010. The reference condition: Predicting benchmarks for ecological and water-quality assessments. Journal of North American Benthological Society, 29(1):312-343
Hering D, A Buffagni, O Moog, et al. 2003. The development of a system to assess the ecological quality of streams based on macroinvertebrates: Design of the sampling programme within the AQEM Project. International Review of Hydrobiology, 88(3-4): 345-361.
Hilsenhoff W L. 1982. Using a biotic index to eval-uate water quality in streams. Technical Bulletin Wisconsin Department of Natural Resources 132.
Jha B R. 2006. Fish ecological studies and its application in assessing ecological integrity of rivers in Nepal. Dhulikhel, Kavre: School of Science, Kathmandu University, 94.
McGill B J, R S Etienne, J S Gray, et al. 2007. Species abundance distributions: Moving beyond single prediction theories to integration within an ecological framework. Ecology Letters, 10: 995-1015.
Merritt R W and K W Cummins. 1996. An introduction to the aquatic insects of North America (3rd edition). Kandall/Hunt Publishing Company. Moog O. 2007. Manual on pro-rata multi-habitat sampling of benthic invertebrates from wadable rivers in the HKH-region. Deliverable 8, part 1 for ASSESS-HKH. European Commission, 29. (www.assess-hkh.at; link checked on Jan 19th, 2010).
NSAE (Nepal Society of Agricultural Engineers). 1997. Impact evaluation study of Andhi Khola Irrigation System. Kathmandu, Nepal: United Mission to Nepal.
Ofenböck T, O Moog and S Sharma. 2008. Development and application of the HKH Biotic Score to assess the river quality in the Hindu Kush- Himalaya. In: Moog O, D Hering, S Sharma, et al. (Eds.). ASSESSHKH: Proceedings of the Scientific Conference “Rivers in the Hindu Kush-Himalaya—Ecology & Environmental Assessment”, 25-32.
Reynoldson T B, R H Norris, V H Resh, et al. 1997. The reference condition: A comparison of multimetric and multivariate approaches to assess water-quality impairment using benthic macroinvertebrates. Journal of the North American Benthological Society, 16: 833-852.
Sharma S. 1996. Biological assessment of water quality in the rivers of Nepal. Vienna: University of Agiculture, Forestry and Renewable Natural Resources Vienna (BOKU), 398.
Sharma M P, S Sharma, V Goel, et al. 2008. Water quality assessment of Ninglad stream using benthic macroinvertebrates. Life Science Journal, 5(3):67-72.
Wallin M, T Wiederholm and R K Johnson. 2003. Guidance on establishing reference conditions and ecological status class boundaries for inland surface waters. Final Report to the European Commission from CIS Working Group.
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