Very rapid developments are widely believed to have occurred within Bangladesh's aquaculture sector in recent years, but have yet to be adequately documented. This paper addresses the information gap based on a comprehensive review of literature and data. The current status of pond based aquaculture in Bangladesh is summarized in terms of the quantities and species of fish produced and the technical and social characteristics of the production systems from which they originate.
In 1976 the Government of Indonesia began a brackish water pond (tambak) development project on the east coast of the north Sumatra provinces Aceh and North Sumatra. Strategic outputs for the 2 province projects are listed. It was decided that polyculture of milkfish (Chanos chanos ) and shrimp (Penaeus monodon ) would be promoted as the most realistic of several possibilities. A mini-estate pilot project was undertaken in order to determine how the tambak expansion could be conducted in an orderly way, both technically and economically sound.
Aeromonas species are potential water/foodborne pathogens, whereas Aeromonas veronii bv. sobria is one of the most virulent species to human and fish. Most current experimental evidence has publicized that suicide plasmid dependent IS1-element untargeted integration into A. veronii bv. sobria ATCC 9071T strain was recently used to generate brown pigment-producing and spontaneous pelleting (BP+SP+) mutant. Current study was conducted to compare virulence of wild-type ATCC 9071T strain and its BP+SP+ mutant with respect to cytotoxicity in HeLa cells and lethality in Nile tilapia.
Technology and knowledge transfer has been a great challenge for many developing countries in South Asia due to poor information and communications technology networks. A limited number of institutions focused on science and technology, weak linkages among private and public institutions and political instability. These factors have hampered the successful transfer and diffusion of new and proven technologies between countries.
Following two decades of work on aquaculture technologies for smallholder farmers, WorldFish is leading the aquaculture component of the Agriculture and Nutrition Extension Project (ANEP), targeting poor farmers in Bangladesh and Nepal.The main goal of ANEP aquaculture component was to increase fish production, household nutrition, incomes and alternative employment opportunities for smallholders by facilitating the adoption of productive and environmentally sustainable agricultural technologies.
The findings are provided of a literature search conducted on the topic of fishpond aeration, using ASFA for the period 1971-1990 and the ICLARM library and professional staff collection. A total of 97 articles were found. The type of publication is indicated and details given of some of the recent publications and some research institutions working in this field.
The effects of two common weedy grasses in sub-saharan Africa were evaluated as fertilisers in small-scale Nile tilapia ponds for 21 weeks.
Investigations in laboratory, tank and pond systems were carried out at teh Domasi Experimental Fish Farm, Zomba, Malawi to evaluate the liming properties of firewood (sterculia quinquiloba Garcke, Schumach) ash. This article suggested that firewood ash has potential both as a low-cost liming agent and as a phosphorous fertilizer for smallholder fish ponds in developing countries.
A limnological study of the artificial fish pond and an analysis of the stomach contents of pacu (Piaractus mesopotamicus) larvae of 2 to 45 days age were made for a period of 45 days to evaluate their feeding preferences. A preference for chlorophytes and rotifers were noted, while other planktonic species remained constant in the stomach contents. Some limnological variables were found to have strong influence on the feeding behavior of the pacu. A preference for feeding on smaller species in the first few days of larval development was also noted.
Details are given of a standard format used by the Pond Dynamics/Aquaculture Collaborative Research Support Program of the US Agency for International Development for the communication of experimental ideas. An example is given of the "Preliminary Proposal Format," which contains a list of information categories or headings as follows: Title; Objectives: Significance; Experimental design; Pond facilities; Stocking rate; Other inputs; Sampling plan; Hypotheses; Statistical methods; Duration; Water management; and Schedule.