Fisheries Infosite

FAR 2014/49 The status of infection by bonamia (Bonamia exitiosa) in Foveaux Strait oysters (Ostrea chilensis) in February 2013, estimates of summer disease mortality, and implications for the projections of future stock status made in the 2012 stock assessment for OYU 5.

FAR_2014_49_2705_OYU2012-01 Objective 1, Milestone 7.pdf

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FAR_2014_49_2705_OYU2012-01 Objective 1, Milestone 7.pdf (3.9 MB)

A survey of Foveaux Strait oysters in February 2013 sampled commercial fishery areas for oyster population size and bonamia. The recruit-sized oyster population increased from 585.3 million in 2012 to 644.9 million in 2013. The density of pre-recruit and small oysters decreased. Mortality from bonamia was about 107 million oysters (13.9% of the recruit-sized oyster population), higher than for recent surveys. Increasing bonamia mortality will slow the rebuilding of the fishery.

Document date
Wednesday, 3 September 2014
Document type
V 1.3
File format
Adobe PDF
File size
3.9 MB
Reference number
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Uploaded from
FAR_2014_49_2705_OYU2012-01 Objective 1, Milestone 7.pdf

Uploaded date
Thursday, 4 September 2014

Search tags
Author: Forman, J.; Fu, D.; Hulston, D.; Maas, E.; Michael, K.P.;
ResearchField: bonamia; Status of infection;
ScienceStock: OYU;
Species: Oyster;
Stock: OYU5;

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