Download FAR 2025/09 Commercial Catch sampling programme for Highly Migratory Species in 2021–22, 2022–23, and 2023–24

Kendrick, T.H. (2025). Commercial Catch sampling programme for Highly Migratory Species in 2021–22, 2022–23, and 2023–24. New Zealand Fisheries Assessment Report 2025/09. 34 p.

Swordfish and tunas caught by tuna longline vessels are processed at sea, preventing the measurement of lengths in port samples, but individual processed weights of the catch are kept by those fish processors that export, in a relatively whole state, these large and valuable fish. Processed weights can be converted to lengths so that this project effectively augments observer length frequency data with estimates based on individual processed weights of fish landed by the domestic fleet.