Productivity and Efficiency

According to the U.S. Environmental Protection Agency, water efficiency is the smart use of our water resources through water-saving technologies and simple steps. Using water efficiently will help ensure reliable water supplies today and for future generations. Topics addressed in this theme provide insights, lessons, and guidance on how diverse stakeholders are working to improve water management and reduce water use.

Productivity and Efficiency Resources

Title XII Collaborative Research Support Program: Tenth Annual Administrative Report (1 September 1991 to 31 August 1992)

Published: 
February 1, 1993
U.S. Agency for International Development
The Pond Dynamics/Aquaculture Collaborative Research Support Program (PD/A CRSP) is an international effort to develop aquacultural technology as a means of confronting food and nutritional problems in developing countries, and to help people learn management skills and earn income. The program is...Read more

Coastal Fisheries and Brackish Water Aquaculture in Sri Lanka

Published: 
January 1, 1993
U.S. Agency for International Development
This document explores several aspects of Sri Lanka's Coastal Fisheries and Brackishwater Aquaculture. Topics within this publication include: Fishing Population, Fish Production and Resources, Fishing Fleet, Imports, Exports and Supply Situation, Brackishwater Aquaculture, as well as Non-...Read more
Regional focus: 
Sri LankaSouth East Asia

Operating Guidelines: Egypt Project in Cooperation With The Pond Dynamics/Aquaculture Crsp

Published: 
January 1, 1993
U.S. Agency for International Development
The goal of CRSP Research Reports is to publish all research produced by Pond Dynamics/Aquaculture CRSP activities, with the exception of research related directly to the Global Experiment. Research Reports is primarily a gray-literature publication, meaning that we publish those papers that might...Read more
Regional focus: 
Egypt, Arab Rep.Middle East and North Africa

Irrigation Water Cost Recovery in Egypt: Determination of Water Costs

Published: 
January 1, 1993
U.S. Agency for International Development
This study addresses the problem of identifying incremental operation, maintenance, and rehabilitation (OM&R) expenditures needed to raise the performance of the water delivery system in Egypt to DO adequate level. Emphasis is placed on developing a procedure for allocating the costs of the...Read more
Regional focus: 
Egypt, Arab Rep.Middle East and North Africa

Multivariate Methods in Aquaculture Research: Case Studies of Tilapias in Experimental and Commercial Systems

Published: 
January 1, 1993
U.S. Agency for International Development
This contribution presents the rationale for the other chapters in this book, to which it serves as introduction. We discuss sequentially: our emphasis on tilapia (Oreochromis spp., Fam. Cichlidae), modelling of pond aquaculture, exploratory and con­ firmatory methods for multivariate analysis, the...Read more
Regional focus: 
PhilippinesEast Asia and Pacific

Management Turnover of a Pump Irrigation System in The Philippines: The Farmer'S Way

Published: 
January 1, 1993
U.S. Agency for International Development
The Philippines' National Irrigation Administration (NIA) of the Philippines has piloted and implemented several approaches to organizing farmers to undertake management responsibilities for the operation and maintenance (O&M) of irrigation systems. in 1983, NIA piloted a new approach...Read more
Regional focus: 
PhilippinesEast Asia and Pacific

Role of Chicken Manure in The Production of Nile Tilapia, Oreochromis Niloticus (L.)

Published: 
January 1, 1993
U.S. Agency for International Development
Two grow-out experiments were conducted to evaluate the functional role of chicken manure for Nile tilapia. Oreochromis niloticus (L.), production in central Thailand. Experiment 1 examined the relationship between chicken manure input and net fish yield (NFY). Experiment 2 determined the value of...Read more
Regional focus: 
ThailandEast Asia and Pacific

Trophic Models of Aquatic Ecosystems

Published: 
January 1, 1993
U.S. Agency for International Development
An improved version ofJ.J. Polovina's ECOPATH program for the construction of steady-state multispecies ecosystem models from fisheries data is presented. This new version, called"ECOPATH II,"differs from the original, aside from being more user-friendly, in a number of important...Read more

Environment and Aquaculture in Developing Countries

Published: 
January 1, 1993
U.S. Agency for International Development
Aquaculture, like all interventions by humans to exploit or manage natural resources for food production, has the potential for causing environmental harm as well as for improving livelihood and nutrition. Aquaculture development must be u undertaken in a broad intersectoral context, considering...Read more

On The Role of Urea in Pond Fertilization

Published: 
January 1, 1993
U.S. Agency for International Development
Two experiments were conducted to better understand the role of urea in pond fertilization. in experiment 1, urea dissolved in pond water and incubated in aquaria at approximately 30degrees Celsius disappeared at a rate of 303ug urea-N1 day under natural sunlight conditions, and 102 ug urea-N1 day...Read more

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