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Pre-recruit (0+) snapper (Chrysophrys auratus) beam trawl and beach seine surveys of East Northland and the Hauraki Gulf (SNA 1) / Morrison, M.A, McKenzie, J., Bian, R.

Contributor(s): Fisheries New Zealand (Government agency) [issuing body.] | New Zealand. Ministry for Primary Industries [issuing body.].
Material type: materialTypeLabelBookSeries: New Zealand fisheries assessment report: 2019/72Publisher: Wellington, N.Z. : Fisheries New Zealand Tini a Tangaroa, 2019.Description: 1 online resource.ISBN: 9781990017162.Subject(s): CHRYSOPHRYS AURATUS | SNAPPERHoldings: ELECTRONIC Online resources: FAR 2019/72 Fisheries Infosite | NIWA document server | National Digital Heritage Archive Open Access Summary: Stock assessment and management of the SNA 1 stock would benefit from estimates of snapper year-class strength, before these fish recruit into the adult fished populations. A single-phase stratified-random beam trawl survey of the Hauraki Gulf (102 stations) returned an estimate of 10.69 million 2019-year-class recruits (CV 15.9%). A two-phase stratified random survey in East Northland (102 stations), returned an estimate of 634 000 recruits (CV 18.7%). These results demonstrate that beam trawl surveys have the potential to generate year class strength estimates for 0+ snapper.
List(s) this item appears in: New Zealand Fisheries Assessment Report
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ELECTRONIC 1 Not for loan 395965

Archived by the National Library of New Zealand in PDF.

Stock assessment and management of the SNA 1 stock would benefit from estimates of snapper year-class strength, before these fish recruit into the adult fished populations. A single-phase stratified-random beam trawl survey of the Hauraki Gulf (102 stations) returned an estimate of 10.69 million 2019-year-class recruits (CV 15.9%). A two-phase stratified random survey in East Northland (102 stations), returned an estimate of 634 000 recruits (CV 18.7%). These results demonstrate that beam trawl surveys have the potential to generate year class strength estimates for 0+ snapper.

ELECTRONIC

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