Drivers of fisheries and their management in the lakes of Pokhara Valley, Nepal

  • Md Akbal Husen Fishery Research Station, Begnas, Pokhara, Kaski, Nepal
  • Tek Bahadur Gurung Nepal Agricultural Research Council (NARC), Nepal
  • Agni Prasad Nepal Fishery Research Station, Begnas, Pokhara, Kaski, Nepal
Keywords: Drivers of fisheries, fisheries management, illegal fishing, capture fisheries, Jalari fishers, Pokhara Valley, non-native fish, biological invasion


Inland fisheries provide food security, livelihood and well-being to community. Fisheries management of lakes is a complex process, influenced by many drivers. In this study the driver of fisheries of lakes of Pokhara Valley were determined through interview of Jalari fishers, key informants and field visits from July 2016 to June 2017. Key drivers were illegal fishing, siltation, loss of fish habitat, water pollution and accelerated eutrophication, intensification of agriculture, biological invasion and developmental works. These drivers have played a key role in changing lake characteristics including lake size, water quality, water depth and natural food availability which subsequently affected the cage aquaculture and capture fisheries of the lake. This paper included an insight of these drivers along with strategy to mitigate them to ensure sustainable fisheries.


Akers RP, Bergmann RW and Pitcairn MJ (2017) Biological control of water hyacinth in California’s Sacramento–San Joaquin River Delta: observations on establishment and spread. Bio control Science and Technology 27: 755–768.

Bartley DM, Leondard NJ, Youn SJ, Taylor WW, Baigún C, Barlow C, , Faxio J, Fuentevilla C, Johnson J, Kone B, Meira K, Metzner R, Onyango P, Pavlov D, Riley B, Ruff J, Terbasket P and Valbo-Jørgensen J (2016) Moving towards effective governance of fisheries and freshwater resources. pp. 285–291. In: WW Taylor, DM Bartley, CI Goddard, NJ Leonard and R Welcomme (Eds) Freshwater, fish, and the future: proceedings of the global cross-sectoral conference. Food and Agriculture Organization of the United Nations, Rome; Michigan State University, East Lansing; and American Fisheries Society, Bethesda, Maryland.

Basnet S (2011) Trophic transfer of mercury in fish species from Lake Phewa, Pokhara, Nepal, Master thesis. Norwegian University of Life Science, Norway.

Bhuiya SI (2014) Towards sustainable co-management organization: a case study of the Baikka Beel, Moulvibazar, Bangladesh. Journal of Fisheries 2(2): 119–124.

Bhuju DR, Sharma S, Jha PK and Gaire NP (2012) Scientific discourse of lakes in Nepal. Journal of Science and Technology 13: 147–158.

Cowx IG (2002) Principles and approaches to the management of lake and reservoir fisheries. In: Cowx IG (Ed) Management and ecology of lake and reservoir fisheries. Fishing News Books, Blackwell Science, Oxford.

Cowx IG, Arlinghaus R and Cooke SJ (2010) Harmonizing recreational fisheries and conservation objectives for aquatic biodiversity in inland waters. Journal of Fish Biology 76: 2194–2215.

Dhakal A and Dixit A (2013) Economics of climate change in the water sector in Nepal, a stakeholder-focused approach a case study of the Rupa watershed, Kaski, Nepal. International Institute for Environment and Development (IIED), UK. 38 pp.

FAO (2018) The state of world fisheries and aquaculture 2018 - meeting the sustainable development goals. Rome.

Ferro W and Swar DB (1978) Bathymetric maps from three lakes in the Pokhara Valley, Nepal. Journal of the Institute of Science 1: 177–188.

Firehun Y, Struik PC, Lantinga EA and Taye T (2015) Adaptability of two weevils (Neochetina bruchi and Neochetina eichhorniae) with potential to control water hyacinth in the Rift Valley of Ethiopia. Crop Protection 76: 75–82.

Fleming B and Fleming JP (2009) A watershed conservation success story in Nepal: land use changes over 30 years. Waterline 28: 29–46.

Galib SM, Mohsin ABM, Parvez MT, Lucas MC, Chaki N, Arnob SS, Hossain MI and Islam MN (2018) Municipal wastewater can result in a dramatic decline in freshwater fishes: a lesson from a developing country. Knowledge and Management of Aquatic Ecosystems 419, 37.

GoN/EbA/UNDP (2015) Development of ecosystem based sediment control techniques and design of siltation dam to protect Phewa Lake. Summary report. Prepared by Forum for Energy and Environment Development (FEED) P. Ltd. for The Ecosystem Based Adaptation in Mountain Ecosystems (EbA) Nepal project. Government of Nepal, United Nations Environment Programme, United Nations Development Programme, International Union For Conservation Of Nature, and the German Federal Ministry for the Environment, Nature Conservation, Building And Nuclear Safety. pp. 31–32.

Guna VK, Ilangovan M, Gangadharaiah A and Reddy N (2017) Water hyacinth: a unique source for sustainable materials and products. ACS Sustainable Chemistry & Engineering 5(6): 4478–4490.

Gurung TB (2007) Restoration of small lakes through cooperative management: a suitable strategy for poverty-laden areas in developing countries? Lakes & Reservoirs: Research and Management 12: 237–246.

Gurung TB and Bista JD (2003) Livelihood improvements through fisheries in the Pode community in Pokhara, Nepal. STREAM (Support to Regional Aquatic Resources Management) Journal 2: 1–3.

Gurung TB and Thing A (2016) Fishing tourism can support fisher's livelihood and fish conservation in Nepal: a value chain analysis. Hydro Nepal 8: 55–60.

Gurung TB, Dhakal RP, Husen MA, Jones JR (2010) Abundance and nutrient limiting growth rate of heterotrophic bacterio-plankton in Himalayan foot hill Lake Phewa, Nepal. Lakes & Reservoirs: Research and Management 15: 53–61.

Gurung TB, SK Wagle, Bista JD, Dhakal RP, Joshi PL, Batajoo R, Adhikari P and Rai AK (2005) Participatory fisheries management for livelihood improvement of fisheries in Phewa Lake, Pokhara, Nepal. Himalayan Journal of Sciences 3: 47–52.

Gutiérrez NL, Hilborn R and Defeo O (2011) Leadership, social capital and incentives promote successful fisheries. Nature 470: 386–389.

Hall SJ, Hilborn R, Andrew NL and Allison EH (2013) Innovations in capture fisheries are an imperative for nutrition security in the developing world. Proceedings of the National Academy of Sciences 110(21): 8393–8398.

Heyojoo BP and Takhachhe P (2014) An assessment of lake area shrinkage through geospatial approach: case study of Phewa Lake of Kaski district, Nepal. International Journal of Multidisciplinary and Current Research 2: 725–728.

Husen MA and Dhakal RP (2009) Seasonal variations of zooplankton, chlorophyll a and nutrients in Phewa Lake, Pokhara Valley, Nepal. ECOPRINT 16: 51–57.

Husen MA, Bista JD and Dhakal RP (2013) Species composition and seasonal variations of zooplanktons in natural shallow Lake Rupa, Pokhara Valley, Nepal. Zoo-Journal 3: 33–40.

Husen MA, Bista JD, Dhakal RP, Prasad S and Nepal A (2012a) Trophic status of Phewa, Begnas and Rupa lakes of Pokhara Valley, Nepal. pp. 261–266. In: Pradhan SM, Upreti CR, Paudel SK, Wagle SK, Shrestha BS and Sanjal S (Eds) Proceedings of the 6th NASA Convection 2011” commercialization of livestock production for food security and prosperity 25–26 September 2011. Nepal Animal Science Association NASC, Jawalakhel Lalitpur.

Husen MA, Bista JD, Prasad S and Nepal A (2012b) Present status and future prospects capture fisheries of indigenous fish species in Begnas Lake, Pokhara. In: Wagle SK, and Pradhan N (Eds) Proceedings of the Consultative Workshop on Fish Conservation in Nepal. Fisheries Research Division, Godawari, Lalitpur, Nepal.

Husen MA, Bista JD, Prasad S and Nepal A (2012c) Participatory fisheries management for the livelihood improvement of fisher of Begnas Lake, Pokhara Nepal. pp. 229–235. In: Paudel MN and Kafle B (Eds) Proceedings of the 10th National outreach Research Workshops" Agriculture Research for Development” 27–28 February 2012 organized by Outreach Research Division, NARC, Kumaltar .

Husen MA, Dhakal RP, Prasad S, Nepal A and Shrestha RK (2015) Temporal changes on the phytoplankton diversity and its implication in fisheries management of Phewa Lake, Nepal. Proceedings of the 7th NASA Convection 2014. Commercialization of livestock production for food security and prosperity 25-26 September 2011. Nepal Animal Science Association NASC, Jawalakhel Lalitpur. pp. 140–146.

Husen MA, Dhakal RP, Wagle SK and Bista JD (2009) Changes in zooplanktons community and density with reference to nutrients in a subtropical Lake Begnas, Pokhara Valley. pp. 54–58. In: Shrestha BS, Singh UM, MP Aryal, Paudel TP and Upreti CR (Eds) Productivity enhancement through livestock and fisheries research. Proceedings of 7th National workshops on Livestock and Fisheries Research held on 25–27 June 2007 at NASRI, Khumaltar Lalitpur and Nepal.

Husen MA, Sharma S, Bista JD, Prasad S and Nepal A (2016) Capture fishery in relation to Nile tilapia management in the mountainous lakes of Pokhara Valley, Nepal. pp. 239–250. In: Taylor WW, Bartley DM, Goddard CI, Leonard NJ and Welcomme R (Eds) Freshwater, fish, and the future: proceedings of the global cross-sectorial conference. Food and Agriculture Organization of the United Nations, Rome; Michigan State University, East Lansing and American Fisheries Society, Bethesda, Maryland.

Imteazzaman AM and Galib SM (2013) Fish fauna of Halti Beel, Bangladesh. International Journal of Current Research 5(1): 187–190.

IUCN (2018) Lake cluster of Pokhara Valley: a new Ramsar Site of Nepal.

Jafari N (2010) Ecological and socio-economic utilization of water hyacinth (Eichhornia crassipes Mart Solms). Journal of Applied Sciences and Environmental Management 14: 43– 49.

Jayanth KP (1988) Successful biological control of water hyacinth (Eichhornia Crassipes) by Neochetina eichhorniae (Coleoptera: Curculionidae) in Bangalore, India. Tropical Pest Management 34: 263–266.

Lynch AJ, Cooke SJ, Deines AM, Bower SD, Bunnell DB, Cowx IG, Nguyen VM, Nohner J, Phouthavong K, Riley B, Rogers MW, Taylor WW, Woelmer W, Youn SJ and Beard TD (2016) The social, economic, and environmental importance of inland fishes and fisheries. Environmental Reviews 24: 1–7.

Mills DJ, Westlund L, de Graaf G, Kura Y, Willman R and Kelleher K (2011) Under-reported and undervalued: Small-scale fisheries in the developing world. pp. 1–15. In: Pomeroy R and Andrew N (Eds) Small-scale fisheries management: frameworks and approaches for the developing world. CABI, Wallingford.

MOFE (2018) Integrated lake basin management plan of Lake Cluster of Pokhara Valley, Nepal (2018-2023). Ministry of Forests and Environment, Kathmandu, Nepal.

Nepal AP, Gallardo WG and Bhujel RC (2011) The role of ethnic women in aquatic resources management in Phewa Lake of Pokhara, Nepal. Journal of the Institute of Agriculture and Animal Science 32: 205–214.

Rai AK, Shrestha BC, Joshi PL, Gurung TB and Nakanishi M (1995) Bathymetric maps of lakes Phewa, Begnas and Rupa in Pokhara Valley, Nepal. Memoirs of the Faculty of Science Kyoto University Series of Biology 16: 49–54.

Rajbanshi KG (2012) Biodiversity and distribution of freshwater fishes of Central/Nepal Himalayan Region. NEFIS. 65 pp.

Rezania S, Din MFM, Taib MS, Ling YE, Chelliapan S and Kamyab H (2017) Beneficial environmentally usage of water hyacinth: a mini review. Recent Advances in Petrochemical Science 1(5): 555–575.

Sharma CM, Basnet S, Kang S, Rosseland BO, Zhang Q, Pan K, Borgstrøm R, Li Q, Wang WX and Huang J (2013) Mercury concentrations in commercial fish species of Lake Phewa, Nepal. Bulletin of Environmental Contamination and Toxicology 91: 272–277.

Shrestha J (1981) Fishes of Nepal. Curriculum Development Center, Tribhuvan University, Kathmandu. 318 pp.

Shrestha TK (2008) Ichthyology of Nepal a study of fishes of the Himalayan waters. Himalayan Ecosphere. Kathmandu, Nepal. 388 pp.

Sindhu R, Binod P, Pandey A, Madhavan A, Alphonsa JA, Vivek N, Gnansounou E, Castro E and Faraco V (2017) Water hyacinth a potential source for value addition: an overview. Bioresource Technology 230: 152–162.

Swar D and Gurung TB (1988) Introduction and cage culture of exotic carps and their impact on fish harvested in Lake Begnas, Nepal. Hydrobiologia 166(3): 277–283.

Thapa DS, Sharma CM, Kang S, and Sillanpää M (2014) The risk of Mercury exposure to the people consuming fish from Lake Phewa, Nepal. International Journal of Environmental Research and Public Health 11: 6771–6779.

Travis J, Coleman FC, Auster PJ, Cury PM, Estes JA, Orensanz J, Peterson CH, Power ME, Stenecki RS and Wootton JT (2014) Integrating the invisible fabric of nature into fisheries management. Proceedings of National Academy of Sciences, 111: 581–584.

Wagle SK, Gurung TB, Bista JD and Rai AK (2007) Cage fish culture and fisheries for food security and livelihoods in mid hill lakes of Pokhara Valley, Nepal: post community-based management adoption. Aquaculture Asia X11 (3): 21–28.

Watson CS, Kargel JS, Regmi D, Rupper S, Maurer JM and Karki A (2019) Shrinkage of Nepal’s second largest lake (Phewa tal) due to watershed degradation and increased sediment influx. Remote Sensing 11: 444.

Youn S-J, Youn E, Allison H, Fuentevill C, Funge-Smith S, Triezenberg H, Parker M, Thilsted S, Onyango P, Akpalu W, Holtgrieve G, Good JM and Muise S (2016) Plenty more fish not in the sea: the underappreciated contribution of inland fisheries and the societal consequences of their neglect. pp. 107–120. In: Taylor WW, Bartley DM, Goddard CI, Leonard NJ and Welcomme R (Eds) Freshwater, fish, and the future: proceedings of the global cross-sectoral conference. Food and Agriculture Organization of the United Nations, Rome; Michigan State University, East Lansing; and American Fisheries Society, Bethesda, Maryland.

How to Cite
Husen, M. A., Gurung, T. B., & Nepal, A. P. (2019). Drivers of fisheries and their management in the lakes of Pokhara Valley, Nepal. Journal of Fisheries, 7(2), 706-713.