SEAFDEC/AQDINSTITUTIONAL REPOSITORY
    • English
    • 日本語
    • ไทย
    • Bahasa Indonesia
  • English 
    • English
    • 日本語
    • ไทย
    • Bahasa Indonesia
  • Login
View Item 
  •   SEAFDEC/AQD Institutional Repository Home
  • 02 SEAFDEC/AQD Collaborative Publications
  • SEAFDEC/AQD-Department of Agriculture (DA) - Philippines
  • Bureau of Agricultural Research (BAR)
  • Fisheries Sector Program (FSP)
  • Research Output of the Fisheries Sector Program: Volume 2. Reports on Fisheries and Aquaculture
  • View Item
  •   SEAFDEC/AQD Institutional Repository Home
  • 02 SEAFDEC/AQD Collaborative Publications
  • SEAFDEC/AQD-Department of Agriculture (DA) - Philippines
  • Bureau of Agricultural Research (BAR)
  • Fisheries Sector Program (FSP)
  • Research Output of the Fisheries Sector Program: Volume 2. Reports on Fisheries and Aquaculture
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Bacterial loads in hatcheries and virulence of Vibrio spp. to larvae of the tiger shrimp Penaeus monodon

  • Global styles
  • MLA
  • Vancouver
  • Elsevier - Harvard
  • APA
  • Help
Thumbnail
View/Open
Request a copy
Date
2007
Author
Torres, James L.
Page views
877
ASFA keyword
virulence ASFA
pathogenic bacteria ASFA
shrimp culture ASFA
hatcheries ASFA
disease control ASFA
bacterial diseases ASFA
crustacean larvae ASFA
AGROVOC keyword
Penaeus monodon AGROVOC
Vibrio AGROVOC
Vibrio anguillarum AGROVOC
Philippines AGROVOC
Taxonomic term
Penaeus monodon GBIF
Metadata
Show full item record

Share 
 
Abstract
Shrimp hatcheries are high-density systems and are prone to diseases. A small-scale and a large-scale hatchery for the tiger shrimp Penaeus monodon in Iloilo, Philippines were monitored over two months for water quality and shrimp survival. Water quality (water temperature, pH, salinity, dissolved oxygen, and specific gravity) was not significantly different between the two hatcheries. However, the small hatchery seemed to favor survival of eggs to early postlarval stages, whereas the large hatchery favored the survival of late postlarvae. The normal microflora and bacterial loads of tiger shrimp eggs, larvae, postlarvae, and rearing water were determined to identify the dominant bacteria and potential pathogens. Shrimp eggs harbored the lowest heterotrophic bacterial counts. The counts increased from the nauplii to the mysis stages, decreased during the mysis stage, and then gradually increased in the older larvae. Bacterial loads in the rearing water reflected those in raw sea water and reservoir-aged sea water. Vibrio, Pseudomonas, and Aeromonas were not detected in eggs but were found in postlarvae. Ubiquitous in sea water, these bacteria increased with the build-up of organic matter. The bacterial load in the water adversely affected larval survival. Forty bacterial strains were isolated from tiger shrimp eggs, larvae, postlarvae, from the feeds, and from the rearing water. These were tested for biochemical characteristics and segregated into eight groups or genera. Six genera were found in the mysis and five genera in the postlarvae. The Vibrio species were dominant. Only Escherichia spp. were present in feeds, whereas five genera were present in the rearing water. Only Vibrio and Pseudomonas were present in both larvae and water. Moraxella, Aeromonas, and Klebsiella were found in larvae but not in rearing water. Micrococcus and coryneforms were found only in rearing water. Four Vibrio isolates were tested for virulence against shrimp postlarvae at inoculation densities of 102 and 107 cfu/ml. The four Vibrio species caused mortality of postlarvae, and more at the higher inoculation density. The most virulent was Vibrio anguillarum—30% of postlarvae died after 24 h exposure to a bacterial density of 102 cfu/ml, and all larvae died after 48 h at 107 cfu/ml. Shrimp hatcheries must have protocols for hygiene and sanitation and for disease prevention and control.
URI
http://hdl.handle.net/10862/3270
Suggested Citation
Torres, J. L. (2008). Bacterial loads in hatcheries and virulence of Vibrio spp. to larvae of the tiger shrimp Penaeus monodon. In T. U. Bagarinao (Ed.), Research Output of the Fisheries Sector Program (Vol. 2. Reports on Fisheries and Aquaculture, pp. 87-92). Quezon City, Philippines: Bureau of Agricultural Research, Department of Agriculture.
Type
Book chapter
ISBN
9718511776
Collections
  • Research Output of the Fisheries Sector Program: Volume 2. Reports on Fisheries and Aquaculture [32]

Related items

Showing items related by title, author, creator and subject.

  • Thumbnail

    Studies on the efficacy of Sarafin® (sarafloxacin hydrochloride) on vibrios associated with vibriosis in black tiger shrimp (Penaeus monodon) 

    Pakingking, Rolando V., Jr. ORCID; Lacierda, Erlinda; Torres, James L. (Fish Health Section, Asian Fisheries Society, 2002)
    In vitro activity of Sarafin® (sarafloxacin hydrochloride) was determined against 7 luminous Vibrio harveyi isolates and 3 non-luminous Vibrio species (V. parahaemolyticus, V. alginolyticus and Vibrio species) isolated ...
  • Thumbnail

    Luminous Vibrio and the greenwater culture of the tiger shrimp Penaeus monodon with tilapia 

    Lio-Po, Gilda D. (John Wiley & Sons, Ltd, 2017)
    Luminous vibriosis is a devastating infection of penaeid shrimp larvae and juveniles causing heavy mortalities. To counter the bacterial pathogen, Vibrio harveyi, shrimp farmers in the Philippines modified their growout ...
  • Thumbnail

    Isolation of Vibrio spp. from Penaeus monodon (Fabricius) with red disease syndrome 

    Tendencia, Eleonor ORCID; Dureza, Lourdes A. (Elsevier, 1997)
    From January 1990 to June 1993, 59% of the total juvenile to adult shrimp Penaeus monodon submitted for diagnosis at the Fish Health Section of the Aquaculture Department, Southeast Asian Fisheries Development Center, ...

© SEAFDEC/AQD  2023
Send Feedback | Subscribe
 

 

Browse

All of SAIRCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

LoginRegister

Statistics

View Usage Statistics

© SEAFDEC/AQD  2023
Send Feedback | Subscribe
 

 

Export citations

Export the current results of the search query as a citation list. Select one of the available citation styles, or add a new one using the "Citations format" option present in the "My account" section.

The list of citations that can be exported is limited to items.

Export citations

Export the current item as a citation. Select one of the available citation styles, or add a new one using the "Citations format" option present in the "My account" section.

Export Citations

DOCUMENT REQUEST NOT AVAILABLE

This publication is still available (in PRINT) and for sale at AQD bookstore. The library is currently restricted to send PDF of publications that are still for sale.

You may contact bookstore@seafdec.org.ph or visit AQD bookstore for orders.

FILE UNDER EMBARGO

This file associated with this publication is currently under embargo. This will be available for download after the embargo date.