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Sustainable intensification of aquaculture using efficient nanobubble technology

Year of publication 2022

Place of publication Bangkok, Thailand ;

Pages 8p.

Author FAO

Publisher FAO ;

Product type Brochure, flyer, fact-sheet

Synopsis (short abstract) To intensify production, it is common for aquaculture producers to aerate water in production systems. Efficient distribution of dissolved oxygen in the production unit is important to avoid stress and crowding behaviour. Most mechanical aeration systems agitate the water surface to increase oxygen levels and as a result dissolved oxygen levels are highest near the water surface and aquatic animals may aggregate and crowd in areas where oxygen levels are highest. Commercial companies have developed and are now marketing improved oxygen supply and aeration systems to improve the efficiency of oxygen transfer through nanobubble technology production systems. Nanobubbles can remain suspended in water for many days until dissolving and are therefore a more efficient method of increasing the dissolved oxygen content in water. The approach is being used with land-based recirculation aquaculture technology by salmon producers working with high stocking densities. Nanobubble generators also work well in biofloc pond systems for species like shrimp and tilapia.

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FAO. 2022. Sustainable intensification of aquaculture using efficient nanobubble technology. Bangkok

Language English

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    Aquaculture development and coordination programme. Fish feed technology. Lectures presented at the FAO/UNDP Training Course in Fish Feed Technology, Seattle, Washington, 9 October - 15 December 1978 1980
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    The need for developing suitable feeds based on locally available inexpensive ingredients has been widely recognized. Since lack of trained personnel is the main constraint in the development of fish feed technology in developing countries, the FAO/UNDP Aquaculture Development and Coordination Programme (ADCP) organized a special training course in fish feed technology at the College of Fisheries, University of Washington, Seattle, with a view to forming a small corps of fish feed specialists wh o could then be the focal points for future feed development programmes in their respective countries. The first report of the training course was presented in the report ADCP /REP/79/8. This present volume represents the edited texts of lectures presented by different specialists. Some additional material has been included for more complete coverage of the subject. Together, these texts may be considered to constitute a manual on fish feed technology, even though they were not prepared for that purpose. Twenty-six papers are included, under the general headings: (1) Digestion, physiology and anatomy; (2) nutritional bioenergetics; (3) nutritional biochemistry; (4) feedstuffs; (5) feed formulation; (6) feed manufacturing technology; (7) practical diets; and (8) quality control. Appendices include conversion tables, electrical data, and details on pelletability of selective feedstuffs, pellet die specifications, and equipment requirements for an 8 ton an hour feed mill.
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    Book (stand-alone)
    Proceedings of the Regional Consultation on Sustainable Intensification of Aquaculture in Asia and the Pacific 2014
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    Asian aquaculture has grown rapidly over the past three decades, and now represents more than 90 percent of global aquaculture output by volume. Growth of the industry has largely been the result of two factors: intensification through technological advances and increased use of feed and other resources. While growth of Asian aquaculture has contributed to food security, it has also led to negative environmental impacts. Intensifying aquaculture production in a sustainable manner is a massive ch allenge. This document is the outcome of a regional consultation on sustainable intensification of aquaculture in Asia and the Pacific held in Bangkok, Thailand from 9 to 11 October 2012. Its main objective was to develop a regional strategic policy framework to guide national governments and regional organizations in promoting sustainable intensification of aquaculture in the region.
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