Summary of observer biological information on the New Zealand black oreo and smooth oreo fisheries from 1979-80 to 2007-08 / R. P. Coburn, P. J. McMillan.

By: Coburn, R. P.
Contributor(s): McMillan, P. J. (NIWA. Wellington).
Material type: materialTypeLabelBookSeries: New Zealand fisheries assessment report ; 2010/43.Publisher: Wellington : Ministry of Fisheries, 2010Description: 31 p. : figs. ; 30 cm.ISSN: 1175-1584 (print); 1179-5352 (online).Report number: NPP4 1011Subject(s): BLACK OREOS | SMOOTH OREOS | FISHERIES | STOCK ASSESSMENT | SOUTHLAND | PUYSEGUR BANK | THE SNARES | WAIRARAPA | BOUNTY PLATFORM | PUKAKI RISE | MACQUARIE RIDGE | CHATHAM RISEOnline resources: Click here to access online In: New Zealand fisheries assessment reportSummary: This report summarises black oreo and smooth oreo biological data (total length/sex ratios/otoliths) from 1979-80 to 2007-08. Data were collected mainly by observers from the Ministry of Fisheries Observer Programme (OP) but some samples came from fishing industry funded groups including the Orange Roughy Management Company (ORMC) before 2003-04 and the Deepwater Group (DWG) from 2005-06. Analyses were carried out for each main oreo fishery and the remaining data were pooled and analysed within each of the main quota management areas. Expected and actual levels of observer coverage for oreos by management area and proportion of oreo catch sampled by observers by fishing area are provided. For both species, annual length data were tabulated to provide number of tows sampled and number of fish measured (usually about 100 fish per sample). For the main black oreo and smooth oreo fisheries mean length by year, scaled by catch weight and a measure of confidence in it were calculated.
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Item type Current location Call number Copy number Status Date due Barcode
JOURNAL JOURNAL WELLINGTON
JOURNALS
NO. 2010/43 1 Available J09709

Includes bibliographical references (p. 11)

This report summarises black oreo and smooth oreo biological data (total length/sex ratios/otoliths) from 1979-80 to 2007-08. Data were collected mainly by observers from the Ministry of Fisheries Observer Programme (OP) but some samples came from fishing industry funded groups including the Orange Roughy Management Company (ORMC) before 2003-04 and the Deepwater Group (DWG) from 2005-06. Analyses were carried out for each main oreo fishery and the remaining data were pooled and analysed within each of the main quota management areas. Expected and actual levels of observer coverage for oreos by management area and proportion of oreo catch sampled by observers by fishing area are provided. For both species, annual length data were tabulated to provide number of tows sampled and number of fish measured (usually about 100 fish per sample). For the main black oreo and smooth oreo fisheries mean length by year, scaled by catch weight and a measure of confidence in it were calculated.

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