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
Age Determination and Growth for Two Corvinas, Cynoscion Stolzmanni and Cynoscion Squamipinnis in the Gulf of Nicoya
Published:
September 1, 1989U.S. Agency for International Development
Age determination and growth for two corvinas, coliamarilla (Cynoscion stoltzmanni) and aguada (Cynoscion quamipinnis), was studied. Validation of age determination on otoliths was carried out by the analysis of length-frequency analysis using the method of Macdonald and Pitcher (1979) and the...Read more
Regional focus:
Costa RicaLatin America and the CaribbeanHydroacoustic Assessment of Fish Stocks in the Gulf of Nicoya, Costa Rica
Published:
September 1, 1989U.S. Agency for International Development
The Gulf of Nicoya, Costa Rica is a relatively shallow, tidally influenced estuary that supports a substantial artisanal fishery on various stocks, primarily corvinas. However, little is known about the population size or productivity of these stocks. While hydro acoustic techniques have been...Read more
Regional focus:
Costa RicaLatin America and the CaribbeanSignificance 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
Regional focus:
Costa RicaLatin America and the CaribbeanThe Use of Stationary Hydro acoustic Transducers to Study Diel and Tidal Influences on Fish Behavior
Published:
October 1, 1987U.S. Agency for International Development
Diel and tiday conditions are two important factors that influence fish behavior. Many fisheries, such as the Corvina fishery in the Gulf of Nicoya, Costa Rica, take advantage of these influences. This study applied stationary transducer arrays that allowed complete coverage of the water column...Read more
Regional focus:
Costa RicaLatin America and the CaribbeanFeasibility of Fish Meal Production in Costa Rica 1983
Published:
January 1, 1983U.S. Agency for International Development
This report by Agricultural Cooperative Development International provides sufficient information to make an assessment under current conditions. This information was obtained through the cooperation of the leaders in the Costa Rican fishing industry, appropriate officials in the Ministry of...Read more
Regional focus:
Costa RicaLatin America and the CaribbeanSociocultural Correlates of Success Among Small-Scale Fishermen in Northwest Costa Rica
Published:
November 1, 1980U.S. Agency for International Development
This paper looks at sociocultural correlates of success among small scale fisherman in northwest Costa Rica. The principal goal of most international development agencies today is to provide for the basic human needs of the poor of the world. This basic human needs approach to development is rather...Read more
Regional focus:
Costa RicaLatin America and the CaribbeanInvestigation Into the Microbiological Quality of Fish in Guatemala and Costa Rica
Published:
January 1, 1978U.S. Agency for International Development
Two preliminary surveys were made on the quality of fish caught by artisan fishers in Costa Rica and Guatemala. The presence of microbiological contamination was tested from point of catch to sale in Costa Rica, and in various retail markets in Guatemala. Observations were made on sanitary...Read more
Regional focus:
Costa RicaLatin America and the CaribbeanArtisanal Fisheries in Costa Rica
Published:
January 1, 1974U.S. Agency for International Development
A SHORT, DESCRIPTIVE REPORT COVERING THE PHYSICAL FEATURES OF THE COSTA RICAN COAST; MARINE SPECIES UTILIZED; THE FISHERMEN; PRODUCTION; ARTISANAL FISHING METHODS; FISHING ORGANIZATIONS AND INSTITUTIONS; THE MARKETING AND DISTRIBUTION SECTOR; PLANS, PROGRAMS, AND GOVERNMENT INVOLVEMENT; AND THE...Read more
Regional focus:
Costa RicaLatin America and the CaribbeanIrrigation Requirements and Water Balance, Arenal Proposed Project, Costa Rica
Published:
June 1, 1972U.S. Agency for International Development
ICE has completed a preliminary study for the construction of a dam and reservoir on the Rio Arenal. The principal purpose is the production of electrical energy. Construction of this power facility will make available an adequate supply of irrigation for a large area of agricultural lands in...Read more
Regional focus:
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.