Tilapia-shrimp polyculture in Negros Island, Philippines

A review

Philip S. Cruz, Merlina N. Andalecio, Remedios B. Bolivar, Kevin Fitzsimmons

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Tilapia-shrimp polyculture has played an important role in current efforts to control luminous bacterial disease caused by Vibrio harveyi. At present, green water technology is most extensively used by shrimp farmers in Negros Island in the central Philippines. While the contribution of tilapia as a biomanipulator is highlighted in the literature, the mechanism of action is not well understood. Data were gathered from shrimp ponds practicing two production systems: (a) green water system (probiotics + tilapia) and (b) closed/semiclosed system (probiotics alone). There was no difference between luminous Vibrio count (P < 0.05) in both systems, and water quality was found to be similar (P < 0.05). Because the green water system uses a bigger reservoir to raise the tilapia biomass, the net shrimp production was lower. In terms of direct cost of production, however, the green water system was 10-15% lower than the closed/semiclosed system because of significantly less aeration required. The polyculture maintained a more stable plankton environment during the early months of culture, which increased survival of shrimps. Various pathways are presented for the control of luminous bacterial growth in polyculture ponds: (a) fish feeding on organic wastes and conversion to feces; (b) selective fish foraging to increase the dominance of beneficial phytoplankton; (c) bioturbation of pond sediments; and (d) release in the water column of antimicrobials, fungi, or competing bacteria from the skin and gut mucus of tilapia.

Original languageEnglish (US)
Pages (from-to)713-725
Number of pages13
JournalJournal of the World Aquaculture Society
Volume39
Issue number6
DOIs
StatePublished - 2008

Fingerprint

polyculture
tilapia (common name)
African Americans
Philippines
shrimp
probiotics
pond
closed loop systems
water technology
bacterial disease
water
mucus
bioturbation
fish
feces
production system
aeration
plankton
skin
Vibrio harveyi

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Aquatic Science

Cite this

Tilapia-shrimp polyculture in Negros Island, Philippines : A review. / Cruz, Philip S.; Andalecio, Merlina N.; Bolivar, Remedios B.; Fitzsimmons, Kevin.

In: Journal of the World Aquaculture Society, Vol. 39, No. 6, 2008, p. 713-725.

Research output: Contribution to journalArticle

Cruz, Philip S. ; Andalecio, Merlina N. ; Bolivar, Remedios B. ; Fitzsimmons, Kevin. / Tilapia-shrimp polyculture in Negros Island, Philippines : A review. In: Journal of the World Aquaculture Society. 2008 ; Vol. 39, No. 6. pp. 713-725.
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