A survey of Bonamia exitiosa infection, and oyster density and recruitment in Foveaux Strait dredge oyster (Ostrea chilensis), February 2006.

By: Michael, K. P.
Contributor(s): Dunn, A. (NIWA. Wellington) | Forman, J. Iu(NIWA. Wellington).
Material type: materialTypeLabelBookSeries: New Zealand fisheries assessment report ; 2008/47.Publisher: Wellington : Ministry of Fisheries, 2008Description: 37 p. : ill. maps ; 30 cm.ISSN: 1175-1584.Subject(s): FISHERIES | OYSTERS | OSTREA CHILENSIS | STOCK ASSESSMENT | DISEASES | BONAMIA | FOVEAUX STRAITOnline resources: Click here to access online In: New Zealand fisheries assessment reportAbstract: The February 2006 Foveaux Strait oyster survey determined the status of bonamia (Bonamia exitiosa) infection in oysters and the effects of disease mortality on stock status. It was a joint programme between the Bluff Oyster Management Company and NIW A. The survey employed a single-phase stratified random design that retained the October 2002 survey strata. Some strata were partitioned, to better define commercial fishery areas designated by oyster skipper. Forty-one sample sites were randomly allocated (35 to commercial strata) and a further three targeted sites were sampled. All sites were sampled for oyster density in three size groups, and oyster samples retained to determine infection by bobamia. Sea conditions were good for dredge sampling and all operational procedures were comparable to those of previous surveys.
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Item type Current location Call number URL Copy number Status Date due Barcode
PDF PDF WELLINGTON
ONLINE
ELECTRONIC http://webcat.niwa.co.nz/documents/FAR2008-47.pdf 1 Not for loan 140378-1001
JOURNAL JOURNAL WELLINGTON
JOURNALS
NO. 2008/47 1 Available J09576

Includes bibliographical references (p. 33-35).

The February 2006 Foveaux Strait oyster survey determined the status of bonamia (Bonamia exitiosa) infection in oysters and the effects of disease mortality on stock status. It was a joint programme between the Bluff Oyster Management Company and NIW A. The survey employed a single-phase stratified random design that retained the October 2002 survey strata. Some strata were partitioned, to better define commercial fishery areas designated by oyster skipper. Forty-one sample sites were randomly allocated (35 to commercial strata) and a further three targeted sites were sampled. All sites were sampled for oyster density in three size groups, and oyster samples retained to determine infection by bobamia. Sea conditions were good for dredge sampling and all operational procedures were comparable to those of previous surveys.

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