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.
FAR 2015/73 A survey of the Foveaux Strait oyster (Ostrea chilensis) population (OYU5) in commercial fishery areas and the status of bonamia (Bonamia exitiosa) in February 2015
Report - Fisheries Assessment Report (FAR)
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