Fisheries Infosite

FAR 2015/ 73 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 2015.


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FAR-2015-73-Foveaux-Strait-oyster-Feb-2015.pdf (2.0 MB)

The February 2015 Foveaux Strait survey was the second in a new time-series of bonamia and oyster surveys incorporating a fully randomised, two-phase design, and the same survey area and strata. Recruit-sized oysters declined by 35% and pre-recruits by 40% since 2014, and numbers of small oysters remained low. The summer mortality from bonamia was 13.1%, down from 18.3% in 2014. Heightened bonamia mortality and continued low recruitment is expected to result in a downward trend in the population.

Document date
Wednesday, 25 November 2015
Document type
V 1.3
File format
Adobe PDF
File size
2.0 MB
Reference number
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Uploaded date
Wednesday, 25 November 2015

Search tags
FAR: 2015/73;
ISSN: 1179-5352;
ISBN: 978-1-77665-107-8;
ScienceStock: Shellfish;
Species: bonamia; Ostrea chilensis; Oyster;
ResearchField: Bonamia; Bonamia exitosa; Foveaux Strait; oyster; randomised two-phase design;
Author: Forman; Hulston; Michael;

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