Japan Agricultural Research Quarterly: JARQ
Online ISSN : 2185-8896
Print ISSN : 0021-3551
ISSN-L : 0021-3551
Fisheries
Impact of Predation by Water Insects on Fish Seed Production in Lao PDR
Kosuke SANOKoji MIYOSHISatoshi ISHIKAWANouhak LIEPVISAYHisashi KUROKURA
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2011 Volume 45 Issue 4 Pages 461-465

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Abstract
The predation of cultured larval fish by water insects presents a serious issue for aquaculture development in rural areas of the Lao People’s Democratic Republic (Lao PDR). In this study, the species composition of predatory water insects was monitored in a fish nursing pond. Laboratory predation experiments were then performed to examine the predation potential of water insects on 3 major cultured fish species, including Barbonymus gonionotus, Cirrhinus cirrhosus, and Cyprinus carpio. Anisops spp. was considered to have the highest impact on mortality by predation in Lao PDR. It was estimated that Anisops bouvieri can prey on 10.4-46.7% of larval fish within 24 h under standard rearing conditions recommended by FAO.
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© 2011 Japan International Research Center for Agricultural Sciences
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