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

By: Michael, K. P. (Keith P.).
Contributor(s): Fisheries New Zealand (Government agency).
Material type: materialTypeLabelBookSeries: New Zealand fisheries assessment report: 2021/06Publisher: Wellington, New Zealand : Fisheries New Zealand, Tini a Tangaroa, 2021Description: 1 online resource.ISBN: 9781991003010.Other title: Foveaux Strait oyster and Bonamia surveys February 2020.Subject(s): FISHERIES | NEW ZEALANDHoldings: ELECTRONIC Online resources: FAR 2021/06 Fisheries Infosite | NIWA document server Summary: 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.
List(s) this item appears in: New Zealand Fisheries Assessment Report
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"February 2021."

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.

ELECTRONIC

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