Fisheries Infosite

FAR 2021/06 Surveys of the Foveaux Strait oyster (Ostrea chilensis) population (OYU 5) and Bonamia exitiosa prevalence, intensity, and disease related oyster mortality in February 2020


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FAR-2021-06-Foveaux-Strait-Oyster-And-Bonamia-Surveys-Feb2020-4100.pdf (4.0 MB)

Foveaux Strait commercial and recruit-sized oyster densities and population sizes were similar in February 2020 to that in 2019, pre-recruits increased 22.5%, and small oysters increased 76.6%. The prevalence of Bonamia infection was 5.1 % in 2020, lower than in 2019 (6.4%). Numbers of non-fatally infected recruit-sized-oysters were low in 2020 (0.9%), similar to in 2019. Bonamia mortality was low in 2020 (3%). Key indicators for the future rebuilding of the fishery are strongly positive.

Document date
Thursday, 11 February 2021
Document type
V 1.3
File format
Adobe PDF
File size
4.0 MB
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Thursday, 11 February 2021

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AUTHOR: Michael, K.P.; Bilewitch, J.; Forman, J.; Hulston, D.; Moss, G.;
FAR: 2021/06;
ISBN: 978-1-99-100301-0;
ISSN: 1179-5352;

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