Now showing items 5010-5029 of 5196

    • Wastewater use in aquaculture: research in Peru 

      Prein, M. (1995)
      Type: Journal Article
      Use of wastewater is an issue gaining importance throughout the (developing) world, as water sources become scarcer and competition for them increases. In Peru, research has shown the technical, economic and social feasibility ...
    • Wastewater-fed aquaculture systems: status and prospects 

      Edwards, P. (1996)
      Type: Journal Article
      Issues concerning the promotion of wastewater reuse in aquaculture are re-examined in this article.
    • Water and fisheries 

      Dugan, P.; Bandi, B.; Béné, C. (2009)
      Type: Book Chapter
      This paper highlights the importance of fisheries and aquaculture in management of the world’s water resources. It underlines the value of these resources and the critical importance of managing water quantity and quality ...
    • Water and sediment quality and plankton diversity of Posna beel, Tangail. 

      Alam, A.; M.G.Mustafa, M.G.; Azad, M.A.K. (2007)
      Type: Journal Article
      Physiochemical studies on water and sediment quality and plankton diversity of Posna beel, Kalihati, Tangail were conducted during 2003-2005. Surface water temperature was minimum (16°C) during winter and maximum (33 °C) ...
    • Water for fish: Sustainable inland fisheries 

      Bevitt, K. (2018)
      Type: Blog
      Water for fish: Sustainable inland fisheries
    • Water management and wise use of wetlands: enhancing productivity 

      Welcomme R.L.; Brummett, R.E.; Denny, P.; Hasan, M.R.; Kaggwa, R.C.; Kipkemboi, J.; Mattson, N.S.; Sugunan, V.V.; Vass, K.K. (2006)
      Type: Book Chapter
      Lakes and reservoirs are affected by human interventions mainly by eutrophication. Changes in morphology are less common, although siltation and local alterations to the riparian zone can result from urbanisation,marina ...
    • Water quality in integrated livestock-fish ponds 

      Hopkins, K.D.; Inocencio, P.; Cruz, E.M. (1983)
      Type: Journal Article
      Water quality variables were monitored during 3.5 years of research on pig-fish, duck-fish and chicken-fish systems. Early morning dissolved oxygen levels were often below 0.5 mg/1. Total ammonia levels were highest in ...
    • Water quality management 

      Siriwardena, S.N.; Nasr-Allah, A.M.; Olaniyi, A.A.; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556 (2022)
      Type: Brief
      In fish culture, water quality is the degree of how conducive the water is for fish growth and the environmental conditions that affect it. Fish farmers need to have sufficient knowledge of water quality parameters, the ...
    • Water quality research or water quality checking: proposed guidelines 

      Costa-Pierce, B.A. (1990)
      Type: Journal Article
      A simple plan is outlined to assist in the design of water quality research and monitoring programmes at aquacultureresearch stations. Before monitoring any programme, a decision on the goals of the aquaculture research to ...
    • Water quality, fish production and economics of Nile Tilapia, Oreochromis niloticus, and African catfish, Clarias gariepinus, monoculture and polyculture 

      Ibrahim, N.; El-Naggar, G.; Nabil Ahmed Ibrahim: 0000-0002-2007-7684 (2010)
      Type: Journal Article
      Tilapia is the main cultured fish species in Egypt, contributing 43.5% of farmed fish production and 24% of total fisheries production. The main problem facing tilapia producers is early reproduction before fish reach ...
    • Water requirements of floodplain rivers and fisheries : existing decision support tools and pathways for development 

      Arthington, A.H.; Baran, E.; Brown, C.A.; Dugan, P.; Halls, A.S.; King, J.M.; Minte-Vera, C.V.; Tharme, R.E.; Welcome, R.L. (2007)
      Type: Report
      This report comprehensively reviews current environmental flow methodologies and fisheries production models to show that the combination of the DRIFT (Downstream Response to Imposed Flow Transformation) methodology and ...
    • Water resources, forests and ecosystem goods and services 

      Brummett, R.; Tanania, C.; Pandi, A.; Ladel, J.; Munzimi, Y.; Russell, A.; Stiassny, M.; Thieme, M.; White, S.; Davies, D. (2009)
      Type: Book Chapter
      The chapter begins with an overview of the water system in the Congo Basin, presents a synopsis of select hydrological goods and services, describes the relationship between forests and water resources in large river systems ...
    • Water use at integrated aquaculture-agriculture farms: experiences with limited water resources in Egypt 

      van der Heijden, P.G.M.; Nasr Alla, A.; Kenawy, D. (2012)
      Type: Journal Article
      Fish farming in Egypt is not formally recognized as an agricultural activity, so aquaculture cannot use water from irrigation canals. However, fish are raised as primary or secondary crops in combination with fruit and ...
    • Water, poverty and inland fisheries: lessons from Africa and Asia 

      Béné, C.; Friend, R.M. (2009)
      Type: Journal Article
      Relying on experience from West Africa and the Mekong Basin, the authors contend that small-scale inland fisheries are a critical element in the livelihoods of many farming households who live near water bodies in developing ...
    • Water, sanitation and hygiene (WASH) survey 

      Phyo, E.E.; Ali, S.A.; Rizaldo, Q.; Akester, M.J.; Ei Ei Phyo: 0000-0002-3745-7659; Syed Aman Ali: 0000-0003-3876-130X; Quennie Rizaldo: 0000-0002-7958-2618; Michael Joseph Akester: 0000-0001-6526-1613 (2021)
      Type: Internal Report
      This document captures the findings of one of the annual performance surveys carried out with the project's Year-1 (Oct 2019 – Sep 2020) SSA farmers provisioned with the WASH materials. The report contains information about ...
    • Watershed governance: livelihoods and resource competition in the mountains of mainland Southeast Asia 

      Ratner, B.D. (2000)
      Type: Other
      This paper examines the challenges of managing the upper watersheds of mainland Southeast Asia, taking local livelihoods and resource competition as its point of departure. The analysis presents the factors of change that ...
    • Waves of change: lessons learned in rehabilitating coastal livelihoods and communities after disasters 

      The WorldFish Center (2008)
      Type: Brief
      Rehabilitating coastal livelihoods and communities after disasters is a key challenge. This brief summarizes some of the lessons learned from past experience.
    • We didn’t have money or enough food’: how COVID-19 affected Papua New Guinean fishing families 

      Lau, J.; Sutcliffe, S.; Jacqueline Lau: 0000-0002-0403-8423
      Type: Blog
      In March 2020, Papua New Guinea went into a state of emergency to contain the spread of COVID-19. For Ahus Island — a small atoll community of around 600 people off the north coast of Manus Island — the state of emergency ...
    • Wealth, rights, and resilience: An agenda for governance reform in small-scale fisheries 

      Ratner, B.D.; Allison, E.H. (2012)
      Type: Journal Article
      The diversity of social, ecological and economic characteristics of smallscale fisheries in developing countries means that context-specific assessments are required to understand and address shortcomings in their governance. ...
    • Wealthy countries dominate industrial fishing 

      McCauley, D.J.; Jablonicky, C.; Allison, E.H.; Golden, C.D.; Joyce, F.H. (2018)
      Type: Journal Article
      The patterns by which different nations share global fisheries influence outcomes for food security, trajectories of economic development, and competition between industrial and small-scale fishing. We report patterns of ...