Summary Histological examination of Atka mackerel ovotestes reveals the possibility of intersexuality. Individuals with bisexual gonads have been caught in the North Pacific near the south-east coast of the Kamchatka peninsula. While intersex appeared to be normal females with developing ovaries, histological analysis showed the presence of both female and male tissue in the same gonad. Specifically, primary growth, cortical alveolar and primary vitellogenic oocytes were located among spermatogonia cysts. The prevalence of intersexuality in the population was less than 0.1%.

中文翻译：

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Atka 鲭鱼 Pleurogrammus monopterygius (Hexagrammidae) 中性行为的第一个证据

总结 Atka mackerel ovotestes 的组织学检查揭示了双性恋的可能性。在堪察加半岛东南海岸附近的北太平洋，有双性腺个体被抓获。虽然双性人似乎是卵巢发育的正常女性，但组织学分析显示同一性腺中同时存在女性和男性组织。具体来说，初级生长、皮质肺泡和初级卵黄卵母细胞位于精原细胞囊肿之间。人群中双性恋的流行率不到0.1%。