SummaryButterflyfish Chaetodon striatus is highly sought after in the marine ornamental aquarium, although studies about its reproductive biology are scarce. Therefore, to contribute to a better understanding of the reproductive aspects of C. striatus, we describe in detail with the use of high resolution histology the cellular dynamics of the germinal epithelium during the reproductive life history of this species. Based on the activity of the germinal epithelium, this study describes different stages of the gonadal development, similar to the reproductive phases found in other fish, to determine the reproductive period of C. striatus. In characterization of gonadal development, the following germ cells are described for males: spermatogonia, spermatocytes, spermatids and spermatozoa. Oogonia, early, primary, secondary, full-grown and maturing oocytes are described for females. Female germinal epithelium of C. striatus showed substantial changes over the study period, indicating that there was an active spawning period. Male germinal epithelium also presented relevant alterations, indicating reproductive activity in the testicular lobules. Morphological data confirm how informative was the cellular dynamics of the germinal epithelium for understanding gonadal development during adult reproductive life of fish in general. Although Chaetodon are a popular species, previous studies have only produced superficial and rough histological analyses. Therefore, this study demonstrates important information on germinal epithelium of Chaetodon. This knowledge could be a fundamental tool for development of new strategies for breeding of several species in captivity, especially butterflyfishes.

中文翻译：

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纹状毛蚴 (Perciformes: Chaetodontidae) 雌性和雄性配子发生过程中生发上皮的细胞发育

摘要蝴蝶鱼毛齿蛉在海洋观赏水族馆中备受追捧，尽管对其生殖生物学的研究很少。因此，有助于更好地了解其生殖方面纹状体，我们使用高分辨率组织学详细描述了该物种生殖生活史期间生发上皮的细胞动力学。基于生发上皮细胞的活动，本研究描述了性腺发育的不同阶段，类似于在其他鱼类中发现的生殖阶段，以确定纹状体. 在性腺发育的表征中，描述了男性的以下生殖细胞：精原细胞、精母细胞、精子细胞和精子。描述了雌性卵原细胞、早期、初级、次级、成熟和成熟的卵母细胞。雌性生发上皮纹状体在研究期间显示出实质性变化，表明存在活跃的产卵期。雄性生发上皮也呈现出相关的改变，表明睾丸小叶的生殖活动。形态学数据证实了生发上皮的细胞动力学对于了解一般鱼类成年生殖生命期间性腺发育的信息量。虽然毛齿兽是一个受欢迎的物种，以前的研究只产生了表面和粗略的组织学分析。因此，本研究证明了有关生发上皮的重要信息毛齿兽. 这些知识可以成为制定圈养几种物种，尤其是蝴蝶鱼的新策略的基本工具。