An epizootic of vibriosis in Ecuadorian pond-reared Penaeus vannamei Boone (Crustacea: Decapoda)

L. L. Mohney, Donald V Lightner, T. A. Bell

Research output: Chapter in Book/Report/Conference proceedingChapter

67 Citations (Scopus)

Abstract

A massive epizootic of vibriosis began in November 1989 and continued through May 1990 in nursery and grow-out ponds in a number of shrimp farms located in the Gulf of Guayaquil, Ecuador. The level of cumulative mortalities ranged from slight in some ponds to >90% in others. Examination of affected Penaeus vannamei led to the isolation of several closely related Vibrio species. The predominant species were identified as Vibrio parahaemolyticus, V. vulnificus, and V. alginolyticus. The epizootic coincided with the second year of a severe drought in Ecuador. Discharge of fresh water by the Guayas River was reduced and salinities and relative nutrient concentrations were elevated in the Gulf of Guayaquil. These environmental conditions were ideal for the increased growth of the causative vibrios in the estuarine waters and are believed to be factors that contributed to the 1989-1990 epizootic. -from Authors

Original languageEnglish (US)
Title of host publicationJournal - World Aquaculture Society
Pages116-125
Number of pages10
Volume25
Edition1
StatePublished - 1994

Fingerprint

pond
drought
environmental conditions
farm
salinity
mortality
water
nutrient
river
gulf

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Mohney, L. L., Lightner, D. V., & Bell, T. A. (1994). An epizootic of vibriosis in Ecuadorian pond-reared Penaeus vannamei Boone (Crustacea: Decapoda). In Journal - World Aquaculture Society (1 ed., Vol. 25, pp. 116-125)

An epizootic of vibriosis in Ecuadorian pond-reared Penaeus vannamei Boone (Crustacea : Decapoda). / Mohney, L. L.; Lightner, Donald V; Bell, T. A.

Journal - World Aquaculture Society. Vol. 25 1. ed. 1994. p. 116-125.

Research output: Chapter in Book/Report/Conference proceedingChapter

Mohney, LL, Lightner, DV & Bell, TA 1994, An epizootic of vibriosis in Ecuadorian pond-reared Penaeus vannamei Boone (Crustacea: Decapoda). in Journal - World Aquaculture Society. 1 edn, vol. 25, pp. 116-125.
Mohney LL, Lightner DV, Bell TA. An epizootic of vibriosis in Ecuadorian pond-reared Penaeus vannamei Boone (Crustacea: Decapoda). In Journal - World Aquaculture Society. 1 ed. Vol. 25. 1994. p. 116-125
Mohney, L. L. ; Lightner, Donald V ; Bell, T. A. / An epizootic of vibriosis in Ecuadorian pond-reared Penaeus vannamei Boone (Crustacea : Decapoda). Journal - World Aquaculture Society. Vol. 25 1. ed. 1994. pp. 116-125
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