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dc.contributor.authorLavilla-Pitogo, C. R.
dc.contributor.authorAlbright, L. J.
dc.contributor.authorPaner, M. G.
dc.contributor.editorFlegel, Timothy W.
dc.identifier.citationLavilla-Pitogo, C. R., Albright, L. J., & Paner, M. G. (1998). Will microbial manipulation sustain the ecological balance in shrimp (Penaeus monodon) hatcheries? In T. W. Flegel (Ed.), Advances in Shrimp Biotechnology : Proceedings to the special session on shrimp biotechnology, 5th Asian Fisheries Forum, 11-14 November 1998, Chiengmai, Thailand (pp. 185–192). Bangkok, Thailand: National Center for Genetic Engineering and Biotechnology.en
dc.description.abstractA shift in preferred methods employed to contain bacterial diseases in the hatchery phase of shrimp culture has resulted largely from the unsuccessful control by and deleterious effects of chemotherapy. Manipulation of hatchery microbial ecology has gained popularity, but for successful implementation, this niche-filling approach requires a thorough understanding of the epidemiology of bacterial diseases in the hatchery. This study examined the responses of Vibrio harveyi populations, (associated with luminescent vibriosis in shrimp larvae) to various physico-chemical factors and various hatchery components. Results showed that V. harveyi had a wider range of tolerance to environmental parameters than larvae of Penaeus monodon, such that control measures based on manipulation of these parameters might not be feasible. However, it was evident from the results that there were components in the shrimp hatchery environment that could be manipulated to control high populations of V. harveyi. The natural microflora of seawater, as well as the microbial flora associated with the diatoms Skeletonema costatum and Chaetoceros calcitrans negatively affected the survival of V. harveyi in experimental mixed cultures. The successful manipulation of such benign microbial components to compete with and exclude potential pathogens is necessary to sustain ecological balance in the shrimp hatchery environment.en
dc.description.sponsorshipWe thank the International Development Research Centre (IDRC) of Canada for funding the research under Project 3-P-88-1053-02. Sheila Mae Buen provided excellent help with the graphs.en
dc.publisherNational Center for Genetic Engineering and Biotechnologyen
dc.subjectmicrobial ecologyen
dc.subjectLuminous bacteriaen
dc.subjectprawns and shrimpsen
dc.subjectGiant tiger shrimpen
dc.subjectPenaeus monodonen
dc.subject.lccVF SP 0228
dc.titleWill microbial manipulation sustain the ecological balance in shrimp (Penaeus monodon) hatcheries?en
dc.typeConference paperen
dc.citation.conferenceTitleAdvances in Shrimp Biotechnology : Proceedings to the special session on shrimp biotechnology, 5th Asian Fisheries Forum, 11-14 November 1998, Chiengmai, Thailanden
dc.subject.asfashrimp cultureen
dc.subject.asfaecological balanceen
dc.subject.asfabacterial diseasesen
dc.subject.scientificNamePenaeus monodonen
dc.subject.scientificNameVibrio harveyien

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