Albacore are mostly caught by trolling on the west coast of New Zealand. Albacore catch is composed
of three distinct sizes in most years, likely reflecting one- to three-year-old fish.
The present analysis updated previous catch-per-unit-effort (CPUE) analyses, showing low CPUE in
2023. Modeling of catch lengths showed that low CPUE was generally associated with low availability
of the usually dominant two-year-old year-class.
It is likely that patterns in New Zealand Albacore troll CPUE and catch composition are reflective of
environmentally driven availability to the fishery.
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