Detailed Research Information

Detailed project information for
Study Plan Number 01072-04

Branch : Fish Health Branch

Study Plan Number : 01072-04

Study Title : Prevalence and contagion of Aeromonas salmonicida based on interactions between hatchery and free-ranging fish

Starting Date : 03/01/1997

Completion Date : 12/31/2000

Principal Investigator(s) : Cipriano, Rocco C.

Primary PI : Cipriano, Rocco C.

Telephone Number : (304) 724-4432

Email Address : rocco_cipriano@usgs.gov

SIS Number : 5002164

Primary Program Element : Fisheries and Aquatic Resources

Second Program Element : Application of Science Information to Management

Status : Completed

Abstract : The use of several major rivers is essential to the Atlantic salmon restoration effort within New England. However, these rivers also support an important non-anadromous salmonid recreational fishery. Furunculosis, caused by A. salmonicida, is enzootic throughout the area encompassed by the Atlantic salmon restoration effort and the disease can be amplified by stocking infected fish. Many of the trout, stocked within New England rivers, are infected with this pathogen. Consequently, it is important to all fishery resource managers to understand the impacts and contagion of this pathogen by examining interactions between hatchery-reared and free-ranging fish. Decisions based upon such interactions will most assuredly affect the success of the restoration effort. The study was completed in which populations of hatchery-reared salmonids from three hatcheries that stock three tributaries of the White River were assessed for infection due to Aeromonas salmonicida. These isolates were libraried in the culture collection of the NFHRL for later comparison to isolates obtained from feral fish. Throughout the study, however, neither direct culture from the mucus of collected fish nor stress induced furunculosis tests conducted on populations of fish from each of the study tributaries produced isolates from feral fish. There was an indication, therefore, that there was no long-lasting interaction in terms of bacterial contagion between hatchery-reared and the free-ranging fish from any of the tributaries that were studied.

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Last Modified: October 21, 2002 dwn
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Branch :	Fish Health Branch
Study Plan Number :	01072-04
Study Title :	Prevalence and contagion of Aeromonas salmonicida based on interactions between hatchery and free-ranging fish
Starting Date :	03/01/1997
Completion Date :	12/31/2000
Principal Investigator(s) :	Cipriano, Rocco C.
Primary PI :	Cipriano, Rocco C.
Telephone Number :	(304) 724-4432
Email Address :	rocco_cipriano@usgs.gov
SIS Number :	5002164
Primary Program Element :	Fisheries and Aquatic Resources
Second Program Element :	Application of Science Information to Management
Status :	Completed
Abstract :	The use of several major rivers is essential to the Atlantic salmon restoration effort within New England. However, these rivers also support an important non-anadromous salmonid recreational fishery. Furunculosis, caused by A. salmonicida, is enzootic throughout the area encompassed by the Atlantic salmon restoration effort and the disease can be amplified by stocking infected fish. Many of the trout, stocked within New England rivers, are infected with this pathogen. Consequently, it is important to all fishery resource managers to understand the impacts and contagion of this pathogen by examining interactions between hatchery-reared and free-ranging fish. Decisions based upon such interactions will most assuredly affect the success of the restoration effort. The study was completed in which populations of hatchery-reared salmonids from three hatcheries that stock three tributaries of the White River were assessed for infection due to Aeromonas salmonicida. These isolates were libraried in the culture collection of the NFHRL for later comparison to isolates obtained from feral fish. Throughout the study, however, neither direct culture from the mucus of collected fish nor stress induced furunculosis tests conducted on populations of fish from each of the study tributaries produced isolates from feral fish. There was an indication, therefore, that there was no long-lasting interaction in terms of bacterial contagion between hatchery-reared and the free-ranging fish from any of the tributaries that were studied.
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U.S. Department of the Interior \|\| U.S. Geological Survey 11700 Leetown Road, Kearneysville, WV 25430, USA URL: http://www.lsc.usgs.gov Maintainer: lsc_webmaster@usgs.gov Last Modified: October 21, 2002 dwn Privacy Policy and Disclaimers \|\| FOIA \|\| Accessibility