FAR 2016/67 A survey of the Foveaux Strait oyster (Ostrea chilensis) population (OYU 5) in commercial fishery areas and the status of bonamia (Bonamia exitiosa) in February 2016.

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FAR-2016-67-Foveaux-Strait-Oysters.pdf

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FAR-2016-67-Foveaux-Strait-Oysters.pdf (1.8 MB)

Abstract
The 2016 Foveaux Strait survey found the recruit-sized, pre-recruit and small oyster populations increased from 2015. Recruit-sized oysters in core strata increased from 351.4 million oysters in 2015 (CV 8%) to 385.2 million oysters in 2016 (CV 11%). Bonamia infection levels decreased markedly in 2016. Summer mortality was much lower, 16.2 million recruit-sized oysters (4.2% of the population), than in 2015 (13.1%). The declining trend in the oyster population since 2012 has levelled off in 2016. Any rebuilding of the recruit-sized population is likely to be slow.

Document date
Wednesday, 11 January 2017

Document type
V 1.3

File format
Adobe PDF

File size
1.8 MB

Reference number
2016/67

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FAR-2016-67-Foveaux-Strait-Oysters.pdf

Uploaded date
Wednesday, 11 January 2017

Search tags

FAR: 2016/67;
ISSN: 1179-5352;
ISBN: 978-1-77665-456-7;
ScienceStock: shellfish;
Species: Bonamia exitiosa; Ostrea chilensis; oyster;
Stock: OYU5;
ResearchField: bonamia; Fouveaux Strait; Oyster; OYU5;
Author: Forman; Hulston; Michael; Sutherland;

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