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

Hatchery Propagation of the Black Basses

Published: 
January 1, 1975
U.S. Agency for International Development
THE MOST PRACTICAL METHOD OF MASS-PRODUCING BASS FINGERLINGS UP TO A TOTAL LENGTH OF 4 INCHES (10 CM) IS TO STOCK SMALL BASS OF AN APPROPRIATE SIZE INTO PREPARED REARING PONDS AT A DENSITY GOVERNED BY THE SIZE BEING REARED. FRY CAN BE PRODUCED IN A SPAWNING POND UNDER THE CARE OF THE PARENT FISH OR...Read more

Ecosystems Modeling: Economic Considerations for a Peruvian Coastal Fishery; A.I.D. Technical Services Project

Published: 
January 1, 1975
U.S. Agency for International Development
MECHANISTIC SIMULATION MODELS OF ECOLOGICAL PROCESSES ARE BECOMING USEFUL TOOLS FOR THE STUDY AND MANAGEMENT OF COMPLEX NATURAL SYSTEMS SUCH AS UPSWELLING COASTAL REGIONS. THE GOAL OF THIS COOPERATIVE PROJECT WAS TO DEVELOP SUCH A MODEL, WHICH WOULD PROVIDE WORKING EXPERIENCE WITH THE METHODS AND...Read more

Artisanal Fisheries in Panama

Published: 
January 1, 1975
U.S. Agency for International Development
A DESCRIPTION OF PERTINENT CHARACTERISTICS OF SELECTED CONCENTRATIONS OF ARTISANAL FISHERMEN IN PANAMA. THEY RANGE FROM GROUPS OF UNORGANIZED INDIVIDUALISTIC FISHERMEN TO HIGHLY ORGANIZED FISHING COOPERATIVES. THE EQUIPMENT USED EXTENDS FROM MOTORLESS DUGOUT CANOES AND HANDLINES TO MOTORIZED...Read more

An Evaluation of USAID Technical Assistance to the Eaffro Lake Victoria Fisheries Project

Published: 
January 1, 1975
U.S. Agency for International Development
AN EVALUATION OF EXISTING USAID TECHNICAL ASSISTANCE TO THE LAKE VICTORIA FISHERIES PROJECT OF THE EAST AFRICAN FRESHWATER FISHERIES ORGANIZATION (EAFFRO). EAFFRO HAS DETERMINED THE EXISTENCE OF OFFSHORE DEMERSAL STOCKS (MAINLY HAPLOCHROMIS) THAT COULD BE EXPLOITED; ANNUAL YIELD HAS BEEN ESTIMATED...Read more

Small Boat Design

Published: 
January 1, 1975
U.S. Agency for International Development
The proceedings of the International Center for Living Aquatic Resources Management Conference on Small Boat Design, October 1975.Read more
Regional focus: 
East Asia and Pacific

Freshwater Foodfish (And Crawfish), Research Needs in the Southern Region (Research Problem 4.07). 1975

Published: 
January 1, 1975
U.S. Agency for International Development
GIVEN INDICATIONS THAT THE U.S. WILL HAVE TO BECOME MORE AND MORE DEPENDENT ON AQUACULTURE AS A SOURCE OF FISH, THE AQUATIC FOOD ANIMAL TASK FORCE ESTABLISHED COMMITTEES TO ASSESS RESEARCH PRIORITIES RELATING TO DEVELOPMENT OF AQUACULTURE FOR FRESHWATER FOODFISH AND CRAWFISH IN THE SOUTHERN REGION...Read more

Artisan Fisheries: Characteristics, Problems, Needs, and Relationships to Aquaculture

Published: 
January 1, 1975
U.S. Agency for International Development
PORTRAYS ARTISAN FISHERIES, FOCUSING ON COSTA RICA, CHILE, TANZANIA, AND SOUTH VIETNAM. COMMON DENOMINATORS OF ARTISAN FISHERIES ALSO ARE DISCUSSED. IN THE CONCLUDING SECTION, IT WAS SEEN THAT ARTISAN FISHERIES AND AQUACULTURAL DEVELOPMENT HAVE THE FOLLOWING GOALS: 1) TO PROVIDE ADDITIONAL HIGH-...Read more

Report on Fish Culture Activities in the Lower Sao Francisco Valley, Brazil

Published: 
December 2, 1974
U.S. Agency for International Development
The fish culture practices applied in the lower Sao Francisco River Valley are described. The principal species cultivated is "curimata paou", Proohilodus argenteus, although t'piau verdadeiro", Leporinus piau, and 'mandf amarelo", Pimelodus olariast are also farmed...Read more
Regional focus: 
BrazilLatin America and the Caribbean

Progress Report on Fisheries Development in Brazil

Published: 
December 1, 1974
U.S. Agency for International Development
Technical assistance rendered under the Auburn University Brazil Contract, provided the initial impetus and training for forming an extension service for intensive fish culture within the DNOCS Directorate of Fisheries and Fishculture. This program put research results to practical use in intensive...Read more
Regional focus: 
BrazilLatin America and the Caribbean

Energy Inputs to Irrigation

Published: 
December 1, 1974
U.S. Agency for International Development
Energy inputs to irrigation are dramatically increasing as irrigated agriculture expands to meet world food demands and more sophisticated technologies are developed to increase water use efficiency. In this study nine irrigation systems, designed for a specific land area, are analyzed and the...Read more
Regional focus: 
United StatesNorth America

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