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

Lake Izabal Fisheries Survey

Published: 
September 5, 1973
U.S. Agency for International Development
In response to a request by the Government of Guatemala and under the sponsorship of USAID, a pre-feasibility fishery survey was conducted from June 11 to 22, 1973, on the Lake Izabal, Rio Dulce, El Golfete system. The objectives were to provide the Ministry of Agriculture with recommendations for...Read more
Regional focus: 
GuatemalaLatin America and the Caribbean

Technical Assistance in Freshwater Fisheries Development in Haiti, August 1973

Published: 
September 1, 1973
U.S. Agency for International Development
At the request of the Haitian Government, USAID/Haiti provided for two weeks technical assistance in freshwater fisheries through the International Center for Aquaculture, Auburn University, Auburn, Alabama. The travel, study and consultations with Haitian fisheries personnel was carried out...Read more
Regional focus: 
HaitiLatin America and the Caribbean

Irrigation System Evaluation and Improvement

Published: 
September 1, 1973
U.S. Agency for International Development
This second edition of the manual contains detailed procedures for the field evaluation of sprinkler, surface, and trickle irrigation performance and management practices. It contains details such as: a list of equipment needed; step-by-step instructions for carrying out the field work; sample...Read more

Increasing Fish Production By Improved Fishcultures, Terminal Report

Published: 
August 30, 1973
U.S. Agency for International Development
"Increasing Fish Production by Improved Fishcultures" is an extension of a prior USAID project which is in need of further technical services in aquaculture and other fishery fields. Due to greater detail and effort this is a more technical project than prior reports.Read more
Regional focus: 
East Asia and Pacific

Annual Report for FY 1973

Published: 
August 15, 1973
U.S. Agency for International Development
This annual report details the work that was done at the International Center for Aquaculture from July 1972 through June 1973. It identifies the accomplishments over the year in topics including recent publications, data on worldwide food fishes, utilization of international resources, economic...Read more
Regional focus: 
United StatesNorth America

Trickle Irrigation Soil Water Potential as Influenced By Management of Highly Saline Water

Published: 
July 19, 1973
U.S. Agency for International Development
Although trickle irrigation offers the possibility of obtaining comparatively good yields when nontoxic highly saline water is used for irrigation, the subsequent accumulation of salts in the root zone is a potential hazard that should not be disregarded. The objective of this investigation was to...Read more

Effect of Agricultural Use on Water Quality for Downstream Use for Irrigation

Published: 
July 1, 1973
U.S. Agency for International Development
Studies the effect of irrigation return flow on downstream irrigation water quality in the Sevier, Colorado, and Rio Grande river systems, and in the Imperial Valley of Southern California. The report begins by reviewing significant literature on irrigation return flow. Next, water quality criteria...Read more
Regional focus: 
United StatesNorth America

Strategy for Optimizing Research on Agricultural Systems Involving Water Management

Published: 
July 1, 1973
U.S. Agency for International Development
The rationale for a model for optimizing agricultural systems through knowledge transfer is developed and presented. The model attempts to disaggregate the environment into significant components which are also measurable. It uses crop production as the overall integrator of the agricultural system...Read more

Chemical Oxygen Demand of Waters and Biological Materials from Ponds

Published: 
July 1, 1973
U.S. Agency for International Development
The rate of oxygen consumption by organisms in pond waters, as measured by a dark bottle technique for a 24-hr period, increased with increasing chemical oxygen demand (COD). Rate of oxygen consumption increased with temperature between 15 and 35C (Q values were 1.5 to 2.0). At the same level of...Read more

Fish Culture Extension Project: Brazil, Dec. 1972-June, 1973

Published: 
June 20, 1973
U.S. Agency for International Development
Major progress towards implementing a self-sufficient extension service within the DNOCS Directorate of Fisheries and Fishculture was made during the second semester of the present contract. The most meaningful advance was the naming of a permanent, trained DNOCS fishculturist to head the fish...Read more
Regional focus: 
BrazilLatin America and the Caribbean

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