Length and age compositions of recreational landings of kahawai in KAH 1 in January to April 2008 and and KAH 8 in January to April 2007.

Contributor(s): Armiger, Helena. (NIWA. Auckland) | Hartill, B. (NIWA. Auckland) | Rush, N. (NIWA. Auckland) | Vaughan, M. (NIWA. Auckland) | Smith, M. (NIWA. Auckland) | Buckthought, D. (NIWA. Auckland).
Material type: materialTypeLabelBookSeries: New Zealand fisheries assessment report ; 2009/36.Publisher: Wellington : Ministry of Fisheries, 2009Description: 40 p. : ill. ; 30 cm.ISSN: 1175-1584.Report number: CCMAU4 0907Subject(s): AGE | BAY OF PLENTY | FISHERY SURVEYS | HAURAKI GULF | KAHAWAI | LENGTH | NORTH ISLAND | NORTHLAND | RECREATIONAL FISHING | STOCK ASSESSMENTOnline resources: Click here to access online In: New Zealand fisheries assessment reportSummary: This report documents an eighth consecutive year of recreational catch sampling to KAH 1 and, for the first time, catch sampling from KAH 8. These data are used to both describe the length and age composition of recreational landings and to monitor the wider KAH I and KAII 8 stocks. Recreational landings have been sampled instead of those from the commercial sector because amateur fishers land a wider size range of kahawai from a far greater number of geographically dispersed schools than any other fishery. This is desirable, as kahawai school by size and, therefore, in an aggregated and non-random manner. This schooling behaviour, and the mobility of schools in response to biological and environmental influences, limits the extent to which landings from any fishery represent the wider population structure.
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Item type Current location Call number Copy number Status Date due Barcode
JOURNAL JOURNAL WELLINGTON
JOURNALS
NO. 2009/36 1 Available J09634

Includes bibliographical references (p. 29-30).

This report documents an eighth consecutive year of recreational catch sampling to KAH 1 and, for the first time, catch sampling from KAH 8. These data are used to both describe the length and age composition of recreational landings and to monitor the wider KAH I and KAII 8 stocks. Recreational landings have been sampled instead of those from the commercial sector because amateur fishers land a wider size range of kahawai from a far greater number of geographically dispersed schools than any other fishery. This is desirable, as kahawai school by size and, therefore, in an aggregated and non-random manner. This schooling behaviour, and the mobility of schools in response to biological and environmental influences, limits the extent to which landings from any fishery represent the wider population structure.

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