A viral disease associated with mortalities in hatchery-reared postlarvae of the giant freshwater prawn Macrobrachium rosenbergii

Jean Michel Arcier, François Herman, Donald V Lightner, Rita M. Redman, Jocelyne Mari, Jean Robert Bonami

Research output: Contribution to journalArticle

118 Citations (Scopus)

Abstract

During mortality outbreaks in hatchery-reared Macrobrachium rosenbergii postlarvae (PL) in Guadeloupe Island (French West Indies) during 1997, an associated viral disease was discovered and the agent was subsequently isolated. The clinical signs presented by severely affected PL consisted essentially of an opaque whitish appearance of the abdomen. Histopathological changes in affected PL were characterized predominantly by pale to darkly basophilic, often reticulated, cytoplasmic inclusions in the connective tissue cells of most organs and tissues. The isolated virus was approximately 30 nm in diameter as observed with an electron microscope by negative staining. By its location, structure and size it could be related to different families of the small RNA cytoplasmic viruses such as the Picornaviridae or the Nodaviridae. Its characterization is in progress.

Original languageEnglish (US)
Pages (from-to)177-181
Number of pages5
JournalDiseases of Aquatic Organisms
Volume38
Issue number3
StatePublished - Nov 30 1999

Fingerprint

viral disease
Macrobrachium rosenbergii
postlarvae
hatchery
hatcheries
virus
mortality
Nodaviridae
Picornaviridae
French West Indies
cytoplasmic inclusions
RNA
Guadeloupe
viruses
electron microscopes
connective tissues
electron
abdomen
tissue
cells

Keywords

  • Crustacean
  • Freshwater prawn
  • Macrobrachium rosenbergii
  • Viral disease

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology

Cite this

A viral disease associated with mortalities in hatchery-reared postlarvae of the giant freshwater prawn Macrobrachium rosenbergii. / Arcier, Jean Michel; Herman, François; Lightner, Donald V; Redman, Rita M.; Mari, Jocelyne; Bonami, Jean Robert.

In: Diseases of Aquatic Organisms, Vol. 38, No. 3, 30.11.1999, p. 177-181.

Research output: Contribution to journalArticle

Arcier, Jean Michel ; Herman, François ; Lightner, Donald V ; Redman, Rita M. ; Mari, Jocelyne ; Bonami, Jean Robert. / A viral disease associated with mortalities in hatchery-reared postlarvae of the giant freshwater prawn Macrobrachium rosenbergii. In: Diseases of Aquatic Organisms. 1999 ; Vol. 38, No. 3. pp. 177-181.
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