Project number:
1987-081
Project Status:
Completed
Budget expenditure:
$0.00
Principal Investigator:
Lindsay Joll
Organisation:
Department of Primary Industries and Regional Development (DPIRD) WA
Project start/end date:
28 Dec 1991
-
31 Dec 1991
Contact:
FRDC
1. Improve existing methods for on-growing pearl oyster spat to a size suitable for pearl cultivation
2. Develop husbandry protocol for preventing and containing an outbreak of oyster mortality on a farm
Final report
Author:
Lindsay Joll
Final Report
•
1.08 MB
1987-081-DLD.pdf
Infection by marine Vlbrlo bacteria is still considered to be
the major opportunistic cause of mass mortalities of pearl
oysters (Pinctada maxima} on farm lease sites in the north
west of Western Australia. Vibriosis of P. maxima was found
to occur following some form of stressful husbandry practice
as similar mortality outbreaks were never apparent in natural
populations of pearl oysters throughout this investigation.
Potentially harmful Vlbrlo species were found to be associated
with pearl oysters in the Broome region throughout the year;
therefore vibriosis could occur at any time to oysters
subjected to excessive stress.
the major opportunistic cause of mass mortalities of pearl
oysters (Pinctada maxima} on farm lease sites in the north
west of Western Australia. Vibriosis of P. maxima was found
to occur following some form of stressful husbandry practice
as similar mortality outbreaks were never apparent in natural
populations of pearl oysters throughout this investigation.
Potentially harmful Vlbrlo species were found to be associated
with pearl oysters in the Broome region throughout the year;
therefore vibriosis could occur at any time to oysters
subjected to excessive stress.
