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

Coral Reef Fisheries At Cape Bolinao, Philippines: An Assessment of Catch, Effort, and Yield

Published: 
April 1, 1988
U.S. Agency for International Development
Monthly catch per unit effort, total efforts and total catch were estimated in an 11 km intensively fished coralline shelf area near Cape Bolinao, Pangassinan, Philippines, June through October 1986, for three principal artisanal fisheries: fish trap, spear, and hook-and-line. Catch per unit effort...Read more
Regional focus: 
PhilippinesEast Asia and Pacific

Age Determination in Biology: a Retrospective and Presentation of Contemporary Methods

Published: 
April 1, 1988
U.S. Agency for International Development
he organization of this report mainly emphasizes the methods and applications of age determination for fishes. However, the development of ageing methods for fish has not reached its full potential and may not have as long a history as that of the other organisms. One of the examples that can be...Read more

Inland Fisheries OPG

Published: 
March 12, 1988
U.S. Agency for International Development
PES of final internal evaluation of pilot project to expand inland fisheries production in the Dominican Republic. The evaluation covered the period 4/82-11/85 and was based on information from previous evaluations, site visits, and interviews with participating farmers. Overall, the project, an...Read more
Regional focus: 
Dominican RepublicLatin America and the Caribbean

Factors Influencing Success of Fishermen's Cooperatives in Ecuador

Published: 
March 1, 1988
U.S. Agency for International Development
This paper looks at factors influencing success of fishermen's cooperatives in Ecuador. The fishermen's cooperative is viewed by many as the ideal type of organization for use in improving the welfare of fishermen in development projects. Major development agencies such as the Food and...Read more
Regional focus: 
EcuadorLatin America and the Caribbean

Baskets of Stones: Government Assistance and Development of Local Irrigation in a District of Northern Sumatera

Published: 
March 1, 1988
U.S. Agency for International Development
Local irrigation networks built, operated and maintained for the local people rather than state irrigation agencies are prevalent throughout Afia. This research discusses the nature and consequences of state assistance to such local system. Focusing on a single administrative district in the...Read more
Regional focus: 
IndonesiaEast Asia and Pacific

Implementing the Irrigation Maintenance and Operations (M & O) Learning Process Regionally or Nationally

Published: 
March 1, 1988
U.S. Agency for International Development
This report examines a maintenance and operations learning process which was developed to provide guidelines that will identify common problems with irrigation systems and to develop solutions that treat the causes of these problems.Read more
Regional focus: 
ThailandEast Asia and Pacific

Collaborative Research Support Program Pond Dynamics/Aquaculture Fifth Annual Administrative Report 1987

Published: 
March 1, 1988
U.S. Agency for International Development
This administrative report addresses the management and technical accomplishments of the Pond Dynamics/Aquaculture Collaborative Research Support Program during the reporting period from September 1 1986 to August 31 1987.Read more
Regional focus: 
United StatesNorth America

Spawning and Recruitment Patterns of Tropical Marine Fish Stock

Published: 
March 1, 1988
U.S. Agency for International Development
There is a paucity of available knowledge regarding fundamental aspects of tropical fish stock demographics and dynamics. The global objective of this research was to develop quantitative techniques and heuristics designed to facilitate optimal benefits acquisition from TFS resources. This paper...Read more

Tropical Fishery System Model: Corecs - Continuous Recruitment Simulation

Published: 
March 1, 1988
U.S. Agency for International Development
The objective of this paper was to develop a continuous-time probabilistic simulation model which depicts salient features of the TFS. Simulation has been defined by Minsky (1986) as a situation in which one system mimics the behavior of another. in principle, a modern computer can be used to...Read more

User's Guide to CORECS -- Continuous Recruitment Simulation Model

Published: 
March 1, 1988
U.S. Agency for International Development
CORECS is a widely applicable finite time-step (At), numerical population simulation model. The model was designed for applications to a tropical context by utilizing continuous versus discrete decision variables. It was specifically designed to produce stochastic age-independent population...Read more

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