Aquaculture Crsp 21st Annual Technical Report
نویسندگان
چکیده
Eight, three-day workshops were given in Bangladesh, Cambodia, Laos, Nepal, Thailand, and Vietnam during June to July 2002. These workshops focused on practical aspects of how to use principles of pond dynamics to improve pond management and optimize fertilization efficiencies for natural food production in semi-intensive aquaculture systems. The centerpiece of the workshops was learning how to apply the algal bioassay fertilization strategy (ABFS) using the simple algal bioassay test kit developed by Michigan State University (MSU) through the Aquaculture Collaborative Research Support Program (CRSP). Fifteen test kits were left at each workshop site. Nearly 150 total participants representing universities, government fisheries offices, non-profit organizations, and community farming groups participated in the workshops. Responses to the workshops have been very positive. Reports from several countries indicate that researchers and farmers alike are adopting the ABFS because it is practical and promotes economically-efficient natural food production by using a simple ecological approach to identify pond-specific fertilization requirements.
منابع مشابه
Aquaculture Crsp 21st Annual Technical Report
Three techniques for treating fish ponds with agricultural limestone were evaluated in ponds with clayey soils in Brazil and in ponds with sandy soils in South Africa. Amounts of agricultural limestone equal to the lime requirement of bottom soils were applied by the following methods to each of three ponds: (1) direct application over the pond surface; (2) spread uniformly over the bottom of t...
متن کاملAquaculture Crsp 21st Annual Technical Report
All-male tilapias are desirable because they manifest superior growth characteristics compared to females. The synthetic steroid, 17α-methyltestosterone (MT) has been commonly used to sex-reverse tilapia but because of its potential health and environmental hazards, the use of phytochemicals as alternative means to affect sex differentiation has to be explored. We addressed objective 1 by using...
متن کاملPd/a Crsp Seventeenth Annual Technical Report
A model developed to analyze the environmental impacts of aquaculture and the productivity and ecological function of integrated aquaculture/agriculture systems was evaluated using sensitivity analysis and model validation methods. The validated model was used to identify priority areas for future research in integrated aquaculture/agriculture systems and to study the flow of nitrogen in these ...
متن کاملAquaculture Crsp 21st Annual Technical Report
This study sought to determine whether administration of steroids via bioencapsulation into live food is an efficient method for sex inversion of carnivorous species of fish in aquaculture. This technique may offer an alternative for sex reversing such species because the larvae strongly prefer live food compared to artificial diets. To determine whether steroids could accumulate in Artemia, na...
متن کاملPd/a Crsp Seventeenth Annual Technical Report
The Instituto de Investigaciones de la Amazonia Peruana (IIAP) is the leading governmental organization working in aquaculture and fisheries research in the Peruvian Amazon region. In addition, IIAP produces fingerlings, offers training courses, and works with nongovernmental organizations (NGOs) endeavoring to promote fish culture. This report summarizes fieldwork and survey results from rural...
متن کامل