World Aquacluture Magazine - September 2020

22 SEP TEMBER 2020 • WORLD AQUACULTURE • WWW.WA S.ORG Conclusions and Recommendations Solar saltworks in the Mekong Delta have proven to be a suitable habitat for integration of Artemia culture. Vinh Chau cysts have an excellent quality record based on smallest size in the market, excellent hatching characteristics and a high level of essential fatty acids. It is thanks to the availability of these unique cysts that the mudcrab hatchery sector in the Mekong Delta expanded so quickly. Rather than having to rely on rotifers as traditional starter food for mudcrab zoea, umbrella Artemia hatched fromVinh Chau cysts are much easier to produce and less prone to Vibrio contamination. Present cyst production remains modest as the present needs of the aquaculture hatchery sector in Vietnam are about 500-700 t of canned cysts per year. Artemia farming and commercialization needs more publicity and outreach to potential farmers and investors from the Mekong Delta and the country as a whole. In the meantime, academics and farmers have tried to overcome the challenges of climate change through advanced study and application to adapt to the short dry season, diversify the feeding strategy to focus more on biomass culture and to develop and extend an integrated system to sustain Artemia farming in the Mekong Delta. Notes Nguyen Van Hoa and Le Van Thong, Cantho University, Vietnam Patrick Sorgeloos, Ghent University, Belgium References Baert, P., T. Bosteels and P. Sorgeloos. 1996. Pond production. In: Manual on the Production and Use of Live Food for Aquaculture, P. Lavens and P. Sorgeloos (Eds.), FAO Fisheries Technical Paper 361:244-316. Baert, P., N.T.N. Anh, V.D. Quynh and N.V. Hoa. 1997. Increasing cyst yields in Artemia culture ponds in Vietnam: the multi-cycle system, Aquaculture Research 28:809-814. Hoa, N.V., T.A. Thu, N.T.NAnh and H.T. Toi. 2011. Artemia franciscana Kellogg, 1906 (Crustacea: Anostraca) production in earthen pond: Improved culture techniques. International Journal of Artemia Biology 1:13-28. Hoa, N.V. 2014. Artemia production in southern Vietnam: geographical, soil structure, climatic and culture technique updating. International Journal of Artemia Biology 1:30-37. Hoa, N.V, T.V. Phuong, T.N. Hai, C.T. Tao, L.Q. Viet, N.T.H. Van, H.T. Toi, T.H. Le, V.N. Son and P.Q.A. Duy. 2017. Applied biofloc technol- ogy for target species in the Mekong Delta in Vietnam: A review. Journal of Environmental Science and Engineering B 6:165-175. Hoa, N.V., T.S. Ngoc and D.T. Nhi. 2019. Effect of fish meal (low value) as a nutrient source in combination with inorganic fertilizer to enhance the algal development in fertilizer pond. Journal of Environmental Science and Engineering B 8:17-27. Hoa, N.V. and N.T.H. Van. 2019. Principle of Artemia culture in solar saltworks. Agriculture Publishing House. ISBN: 978-604-60-2946-5. 219 pp. Hoa, N.V. and T.N.H. Nam. 2019. Application of bio-floc technology for culture of Artemia. Agriculture Publishing House. ISBN: 978-604- 60-2981-6.163 pp. Hoa, N.V. (Ed.) 2007. Artemia-Research and application in aquaculture. Agriculture Publishing House. 889-2007/CXB/52-124/NN. 135 pp. Ronald, L., G. Van Stappen, N.V. Hoa and P. Sorgeloos. 2014. Effect of carbon/nitrogen ratio manipulation in feed supplements on Artemia production and water quality in solar salt ponds in the Mekong Delta, Vietnam. Aquaculture Research 45(12):1906-1912. Sorgeloos, P., P. Lavens, P. Léger, W. Tackaert and D. Versichele. 1986. Manual for the culture and use of brine shrimp Artemia in aquaculture, Ghent University, Ghent, Belgium, 319 p. Van Stappen, G., S. Liying, N.V. Hoa, M. Tamtin, B. Nyonje, R. de Medeiros Rocha, P. Sorgeloos and G. Gajardo. 2020. Review on integrated production of the brine shrimp Artemia in solar salt ponds. Reviews in Aquaculture 12(2):1054-1071. FIGURE 10. Frozen (left) and chilled (right) biomass for longer storage/transportation. FIGURE 11. Artemia farming status in the Mekong Delta, Vietnam.