Design for a catch sampling programme to estimate the age structure of New Zealand hāpuku (Polyprion oxygeneios) /

Maggs, J. Q.

Design for a catch sampling programme to estimate the age structure of New Zealand hāpuku (Polyprion oxygeneios) / J.Q. Maggs, D. Parsons. - Wellington, New Zealand : Fisheries New Zealand, Tini a Tangaroa, 2023. - 1 online resource (30 pages) - New Zealand fisheries assessment report, 2023/34 1179-5352 ; . - New Zealand fisheries assessment report 2023/34 .

"July 2023."

A commercial catch sampling design was developed for estimating the age-structure of hāpuku (Polyprion oxygeneios) from the New Zealand bottom longline fishery. Based on the minimum required number of otoliths, current catches, and market conditions, there may be potential for a catch sampling project in HPB 1, HPB 2, HPB 4, and HPB 5, but this would generally incur a high cost and require highly targeted sampling as well as a high degree of cooperation with fishers and licensed fish receivers.

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