We examined specimens from the winter–spring cohort of the neon flying squid Ommastrephes bartramii caught off the coast of northeastern Japan in early summer and the following winter for mantle length, sex, maturity, and age to determine their hatching dates as well as their growth and migration patterns. Squid specimens were collected with a research driftnet in July 2018 in the northwestern Pacific and by squid jigging off the coast of northeastern Japan in November 2018 and January 2019. The ages of 300 specimens were estimated from statolith increment counts and used to back-calculate hatching dates. Hatching dates ranged from September 2017 to July 2018. The peak hatching dates varied with the survey season, even for the same winter–spring cohort. Squid caught in July 2018 hatched mainly from February to April, while those caught in November 2018 hatched mostly during April and May and those caught in January 2019 hatched principally during May and June. This pattern indicates that squid migrate among fishing grounds and that stocks are gradually replaced by late-hatching squid.

我们检查了来自霓虹飞鱿Ommastrephes bartramii的冬春季组的标本在初夏和次年冬天在日本东北部海岸捕获的地幔长度、性别、成熟度和年龄，以确定它们的孵化日期以及它们的生长和迁移模式。鱿鱼标本于 2018 年 7 月在西北太平洋通过研究流网收集，并于 2018 年 11 月和 2019 年 1 月在日本东北部海岸钓鱿鱼。 300 个标本的年龄是根据静石增量计数估计的，并用于反计算孵化日期。孵化日期从 2017 年 9 月到 2018 年 7 月不等。孵化高峰日期随调查季节而变化，即使是同一个冬春季群。2018年7月捕获的鱿鱼主要在2-4月孵化，2018 年 11 月捕获的鱼主要在 4 月和 5 月孵化，2019 年 1 月捕获的鱼主要在 5 月和 6 月孵化。这种模式表明鱿鱼在渔场之间迁移，种群逐渐被晚孵化的鱿鱼所取代。