An epizootic of necrotizing hepatopancreatitis in cultured penaeid shrimp (Crustacea: Decapoda) in northwestern Peru

Donald V. Lightner; Rita M. Redman

doi:10.1016/0044-8486(94)90329-8

An epizootic of necrotizing hepatopancreatitis in cultured penaeid shrimp (Crustacea: Decapoda) in northwestern Peru

Donald V. Lightner, Rita M. Redman

Research output: Contribution to journal › Article › peer-review

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Abstract

In January and February of 1993 a severe epizootic of necrotizing hepatopancreatitis (NHP) began to affect a number of commercial penaeid shrimp farms in the Tumbes area of northwestern Peru and adjacent areas of Ecuador. Histological and transmission electron microscopical (TEM) examination of affected juvenile Penaeus vannamei showed massive infections of the hepatopancreas by a pleomorphic intracellular Gram-negative bacterium. The agent was named Peru NHP (PNHP) for its geographical occurrence and for the type of lesion with which it was associated. A very similar bacterium (TNHP) has been found to be associated with a serious epizootic disease in shrimp farms in Texas. Before the cause of the Peru epizootic of PNHP was determined and corrective measures were taken, nearly half of Peru's 44 active shrimp farms had been so seriously affected that they were closed by June of 1993.

Original language	English (US)
Pages (from-to)	9-18
Number of pages	10
Journal	Aquaculture
Volume	122
Issue number	1
DOIs	https://doi.org/10.1016/0044-8486(94)90329-8
State	Published - Apr 15 1994

ASJC Scopus subject areas

Aquatic Science

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title = "An epizootic of necrotizing hepatopancreatitis in cultured penaeid shrimp (Crustacea: Decapoda) in northwestern Peru",

abstract = "In January and February of 1993 a severe epizootic of necrotizing hepatopancreatitis (NHP) began to affect a number of commercial penaeid shrimp farms in the Tumbes area of northwestern Peru and adjacent areas of Ecuador. Histological and transmission electron microscopical (TEM) examination of affected juvenile Penaeus vannamei showed massive infections of the hepatopancreas by a pleomorphic intracellular Gram-negative bacterium. The agent was named Peru NHP (PNHP) for its geographical occurrence and for the type of lesion with which it was associated. A very similar bacterium (TNHP) has been found to be associated with a serious epizootic disease in shrimp farms in Texas. Before the cause of the Peru epizootic of PNHP was determined and corrective measures were taken, nearly half of Peru's 44 active shrimp farms had been so seriously affected that they were closed by June of 1993.",

author = "Lightner, {Donald V.} and Redman, {Rita M.}",

note = "Funding Information: Partial funding for the work reported here was provided by the Asociacion LangostineraP eruanao f Tumbes, Peru.",

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AU - Lightner, Donald V.

AU - Redman, Rita M.

N1 - Funding Information: Partial funding for the work reported here was provided by the Asociacion LangostineraP eruanao f Tumbes, Peru.

PY - 1994/4/15

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N2 - In January and February of 1993 a severe epizootic of necrotizing hepatopancreatitis (NHP) began to affect a number of commercial penaeid shrimp farms in the Tumbes area of northwestern Peru and adjacent areas of Ecuador. Histological and transmission electron microscopical (TEM) examination of affected juvenile Penaeus vannamei showed massive infections of the hepatopancreas by a pleomorphic intracellular Gram-negative bacterium. The agent was named Peru NHP (PNHP) for its geographical occurrence and for the type of lesion with which it was associated. A very similar bacterium (TNHP) has been found to be associated with a serious epizootic disease in shrimp farms in Texas. Before the cause of the Peru epizootic of PNHP was determined and corrective measures were taken, nearly half of Peru's 44 active shrimp farms had been so seriously affected that they were closed by June of 1993.

AB - In January and February of 1993 a severe epizootic of necrotizing hepatopancreatitis (NHP) began to affect a number of commercial penaeid shrimp farms in the Tumbes area of northwestern Peru and adjacent areas of Ecuador. Histological and transmission electron microscopical (TEM) examination of affected juvenile Penaeus vannamei showed massive infections of the hepatopancreas by a pleomorphic intracellular Gram-negative bacterium. The agent was named Peru NHP (PNHP) for its geographical occurrence and for the type of lesion with which it was associated. A very similar bacterium (TNHP) has been found to be associated with a serious epizootic disease in shrimp farms in Texas. Before the cause of the Peru epizootic of PNHP was determined and corrective measures were taken, nearly half of Peru's 44 active shrimp farms had been so seriously affected that they were closed by June of 1993.

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An epizootic of necrotizing hepatopancreatitis in cultured penaeid shrimp (Crustacea: Decapoda) in northwestern Peru

Abstract

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