Age distributions were estimated for orange roughy sampled from the main Cook Canyon spawning aggregation in 2019 and 2020 and from Cook Canyon Pinnacle in 2020. In 2019, Cook Canyon Plume was dominated by fish between 30 to 65 years old, but with several fish over 100 years old. In 2020, age compositions were similar between strata, with most fish ranging from 30 to 55 years old, with few fish greater than 100 years old. The Plume contained slightly older fish on average than the Pinnacle.
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