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
Farm Size and Efficiency in Irrigated Agriculture: the Case of the Zimbabwe Communal Areas
Published:
July 1, 1988U.S. Agency for International Development
One of the principal socioeconomic issues in irrigation design is the size of holdings to be allocated to individual farm households. The major arguments for larger versus smaller plot sizes concern equity - allocating a given amount of irrigable land to larger or smaller numbers of poor farmers -...Read more
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ZimbabweSub-Saharan AfricaSmall-Scale Water Pumping in Botswana Volume V: Other Pumping Technologies
Published:
June 1, 1988U.S. Agency for International Development
The major objectives of this volume is to report on the evaluation of four pumping technologies (animal-drawn, biogas substitution, alternating-current electrical, and hand-operated pumps). The evaluation aims to provide as clear a picture as possible of the state of technology development,...Read more
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BotswanaSub-Saharan AfricaPsychocultural Adaptation and the Formation of Fishermen's Cooperatives in Ecuador
Published:
June 1, 1988U.S. Agency for International Development
This paper looks at the psychocultural adaptation and the formation of fishermen's cooperatives in Ecuador. In most fisheries departments and development agencies around the world mariculture and marine capture fisheries are often lumped together in "the fishery sector," and the...Read more
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EcuadorLatin America and the CaribbeanPond Dynamics/Collaborative Research Data Reports Volume Three: Indonesia Project
Published:
June 1, 1988U.S. Agency for International Development
Data for various physical, chemical and biological parameters were collected in 1983-84 at the Babakan Fisheries Station of the Institute Pertanian Bogor, Indonesia, during the first experimental cycle of the Pond Dynamics/Aquaculture Collaborative Research Support Program (PD/A CRSP). The station...Read more
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IndonesiaEast Asia and PacificImproved Method for Fitting Gillnet Selectivity Curves to Predetermined Distributions
Published:
June 1, 1988U.S. Agency for International Development
Monte Carlo optimization with constraints was used to estimate parameters of "skew-normal" selectivity curves for gillnets. Non-linear functions of mesh size were explored in addition to the linear ones described by Wulff (1986). This methodology can be used to estimate the parameters for...Read more
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PhilippinesEast Asia and PacificJess Report on Fisheries
Published:
June 1, 1988U.S. Agency for International Development
This report details the results of a consultancy to assess the potential impacts of construction of the Baardheere Dam on downstream fish populations and fisheries development in the Jubba [Juba] Valley in Somalia. The goals of this fishery assessment were to describe the status of the fisheries...Read more
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SomaliaSub-Saharan AfricaIrrigation Management Research in Sri Lanka: a Review of Selected Literature
Published:
June 1, 1988U.S. Agency for International Development
In support of A.I.D.'s Irrigation Systems Management Project in Sri Lanka, a select literature review of key irrigation issues was conducted. The review focused on literature since 1978 (the year of Chambers' influential study of water management in Sri Lanka) and describes progress made...Read more
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Sri LankaSouth East AsiaManagement Review: Fisheries Stock Assessment CRSP
Published:
June 1, 1988U.S. Agency for International Development
As part of the triennial review of the Stock Assessment CRSP this Management Review was conducted in June 1988. The review was based on information gained from several sources including participation in CRSP meetings in Washington, D.C., Solomon's, Maryland and Kingston, Rhode Island during...Read more
User's Manual for Simulpop, a Program to Simulate Series of Length Frequency Distributions of An Exploited Fish Stock
Published:
May 1, 1988U.S. Agency for International Development
The objective of the program is to obtain a series of monthly length frequency distributions representing the catch of a population with known parameters (life history and fishing activity related parameters). Consequently, it is possible to verify the ability of different length frequency...Read more
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PhilippinesEast Asia and PacificSignificance of Physiologically Structured Models for Fish Stock Dynamics
Published:
April 1, 1988U.S. Agency for International Development
The present working document contains the initial papers of a series whose ultimate purpose is to provide a realistic basis for a fresh appraisal of both the surplus production and the dynamic pool approaches to fishery yield analysis. The main idea is to tighten the conceptual framework of the...Read more
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Costa RicaLatin America and the CaribbeanDon't see what you're looking for? You can search USWP member sites, request a resource, or contact the USWP.