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

Socio-Economic Aspects of Fishery Operation in the Nam Pong Reservoir, 1970-1971

Publication date:
January 1, 1972
U.S. Agency for International Development
THE CREATION OF A MAN-MADE LAKE LED TO THE NATURAL DEVELOPMENT OF AN INLAND FISHERY AND SOCIOECONOMIC CHANGES AMONG THE FISHERMAN INVOLVED. THE ANALYSIS OF THESE CHANGES OF RESERVOIR MANAGEMENT ENCOMPASSES THE QUESTION OF OPTIMUM RATIO OF THE NUMBER OF FISHERMEN PER GIVEN AREA OF WATER SURFACE. THE...Read more

Fish That Mean Life

Publication date:
January 1, 1972
U.S. Agency for International Development
This publication discusses the importance of fish and aquaculture in addressing food scarcity challenges.Read more
Regional/Country focus:
Global

Aeromonas - Induced Deaths Among Fish and Reptiles in an Eutrophic Inland Lake

Publication date:
January 1, 1972
U.S. Agency for International Development
Aeromonas hydrophila, and Aeromonas shigelloides were associated with mortality among fish, turtles, and alligators of Lake Apopka, Lake and Orange Counties, Florida. Factors predisposing to infection included eutrophication of the lake and low dissolved oxygen content of the water.Read more

Bibliography of Interest in Utilization of Vascular Aquatic Plants

Publication date:
January 1, 1972
U.S. Agency for International Development
Relatively few studies have been conducted on the utilization of aquatic weeds. Little (1968) listed 50 papers on the subject, and only a few reports have been published since his compilation. During recent months interest in the utilization of aquatic plants has increased, particularly with...Read more

Planning Sediment Distribution in Surface Irrigation Systems

Publication date:
November 1, 1971
U.S. Agency for International Development
Colorado State University
This report deals with planning sediment load distribution in surface irrigation systems. The object is to route water and sediment through an irrigation canal network so that sediment discharge equilibrium is achieved by diverting the sediment inflow with the farm supplies. A computer simulated...Read more

Revised Fisheries Prop (Project 512-15-180-247.4)

Publication date:
October 19, 1971
U.S. Agency for International Development
USAID assistance in Northeast Brazil began in 1964 with a team of five PASA technicians which surveyed at the request of SUDENE. USAID has been providing technical assistance in Fish Technology and Fish Biology. PASA assistance is terminating but contractor assistance is to continue for two more...Read more
Regional/Country focus:
Brazil
Latin America and the Caribbean

Sub-Irrigation in the Zapotitan Project

Publication date:
October 1, 1971
U.S. Agency for International Development
Studies were made to determine the feasibility of Sub-Irrigation in the lower portions of the Zapotitan Valley. The report suggests sub-irrigation as a possibility for some of the areas within the valley.Read more
Regional/Country focus:
El Salvador
Latin America and the Caribbean

Nutritive Quality of Food in Ecological Systems

Publication date:
October 1, 1971
U.S. Agency for International Development
The expression of net primary production in terms of dry matter, organic matter, carbon, or energy converts all units of plant production to an equivalent basis. However, net production differs in chemical composition and nutritive value depending upon species, plant age, and habitat. The nutritive...Read more

Annual Report for FY 1971

Publication date:
August 1, 1971
U.S. Agency for International Development
This annual report details the work that was done at the International Center for Aquaculture from July 1970 through June 1971. It identifies the accomplishments over the year in topics including inland fisheries, fish breeding, fish feeding, methods for increasing fish production and training...Read more
Regional/Country focus:
United States
North America

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