Filename
FAR-2025-17-Annual-survey-of-the-Foveaux-Strait-oyster-fishery-OYU5-and-Bonamia-exitiosa-prevalence-intensity-and-disease-mortality-in-February-2024.pdf
Link to file
FAR-2025-17-Annual-survey-of-the-Foveaux-Strait-oyster-fishery-OYU5-and-Bonamia-exitiosa-prevalence-intensity-and-disease-mortality-in-February-2024.pdf (5.6 MB)
Abstract
•The Foveaux Strait oyster fishery (OYU 5) is a high value, nationally important fishery.
•A defining feature of the OYU 5 fishery is the recurrent infection by the parasite Bonamia exitiosa (Bonamia)
•Annual research surveys monitor both oyster abundance within the fishery and the prevalence of Bonamia infection annually.
•A dredge survey was undertaken in February 2024, in collaboration with the Bluff Oyster Management Company Ltd on FV Golden Harvest.
•Oyster densities have declined since 2021.
•In 2024, 1755 oysters were tested from 71 stations, with 18.1% testing positive for Bonamia.
•The prevalence of infection is higher than in 2023 (8.7%) and the highest it has been since at least 2015.
•The increased prevalence of infection is expected to affect the number of recruit-sized oysters in the population.
Document date
Wednesday, 19 March 2025
Document type
V 1.3
File format
Adobe PDF
File size
5.6 MB
Reference number
Sort order
Uploaded from
FAR-2025-17-Annual-survey-of-the-Foveaux-Strait-oyster-fishery-OYU5-and-Bonamia-exitiosa-prevalence-intensity-and-disease-mortality-in-February-2024.pdf
Uploaded date
Wednesday, 19 March 2025
Search tags
ISBN:
978-1-991345-42-4;
ISSN:
1179-5352;
FAR:
2025/17;
AUTHOR:
Morrison, M.;
Lane, H.S.;
Bian, R.;
Moss, G.;
Brooks, A.;
Smith, L.;
Forman, J.;
If you are having problems opening this file, you may not have the software on your computer needed to view it. Click the link below to download and install a suitable program.
