ABSTRACT: Intersex in gonochoristic species is a reproductive abnormality in which an individual produces gametes of the type normally associated with the opposite sex. To investigate the prevalence of intersex in male lionfish Pterois spp., 884 individuals were collected from the Bahamas and North Carolina between 2004 and 2008. Histological sections of testes were scored for the presence or absence of oocytes. In intersex individuals, the number of oocytes, size, and developmental stage was recorded. The prevalence of intersex was approximately 15% and, along with all other measured metrics describing the condition, did not significantly differ between the 2 locations. Most of the intersex males displayed only primary-stage oocytes embedded in structurally normal gonadal tissue. However, 3 fish from the Bahamas exhibited oocytes of all developmental stages and complete restructuring of the gonadal tissue that is atypical of both male and female lionfish. This study is the first extensive report of intersex in lionfish, and the first in a gonochoristic reef fish.

中文翻译：

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雄性入侵大西洋l鱼（Pterois spp）的双性。

摘要：性交生殖物种中的双性恋是一种生殖异常，其中个体产生通常与异性相关的配子。探讨雌雄性ter鱼Pterois spp中的性行为患病率。在2004年至2008年之间，从巴哈马和北卡罗来纳州收集了884个人。对睾丸的组织学切片评分，以评估是否存在卵母细胞。在两性个体中，记录了卵母细胞的数量，大小和发育阶段。双性恋的患病率约为15％，并且与描述该状况的所有其他测量指标一起，在这两个位置之间没有显着差异。大多数双性恋男性只表现出结构正常性腺组织中嵌入的初级卵母细胞。然而，来自巴哈马的3条鱼表现出所有发育阶段的卵母细胞和性腺组织的完全重组，这是雄性和雌性狮子鱼的非典型特征。这项研究是l鱼中性交的第一个广泛报道，也是角线珊瑚礁鱼中的第一个广泛报道。