Morphology of the male reproductive system and seasonality in reproduction in the freshwater crab Arcithelphusa cochleariformis (Brachyura: Gecarcinucidae)

IF 0.9 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY

Marine and Freshwater Behaviour and Physiology Pub Date : 2019-09-03 DOI:10.1080/10236244.2019.1677468

Sneha Dineshan, Arath Raghavan Sudha Devi

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Abstract

ABSTRACT This study detailed the histomorphology of the male reproductive system and seasonality in the reproduction of a recently described genus and species of freshwater crab Arcithelphusa cochleariformis. Results indicated that the testis and vas deferens underwent correlative changes in accord with the active, inactive and revival phases of spermatogenesis. The spermatogenic activity was at its peak during June evinced from large fully extended acini with full package of mature spermatozoa and low during September–February with decreased acinar dimensions, pycnotic germ cells and residual sperms. Seasonal cyclicity was also observed in the thickness of epithelium, muscle layer, diameter of lumen and the amount of luminal contents of the vas deferens. In June, the anterior and middle vas deferenswere filled with secretions and spermatophores.By September, ruptured spermatophores with freely dispersed pycnotic spermatozoa were perceptible in the anterior and middle vas deferens and lysed spermatophoric debris in posterior vas deferens.

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淡水蟹雄性生殖系统形态及繁殖季节特征(短肢目:尾蟹科)

摘要本研究详细研究了新发现的一属和一种淡水蟹(Arcithelphusa cochleariformis)雄性生殖系统的组织形态学和繁殖的季节性。结果表明，睾丸和输精管在精子发生的活跃、不活跃和恢复阶段发生了相关的变化。生精活性在6月达到高峰，表现为大的完全伸展的腺泡，有完整的成熟精子包;9 - 2月生精活性较低，腺泡尺寸减小，生殖细胞增生，精子残留。输精管上皮厚度、肌层厚度、管腔直径及管腔内容物量均有季节性变化。6月，前输精管和中输精管充满了分泌物和精囊。9月前、中输精管可见破裂的精囊及散失的精囊，后输精管可见破裂的精囊碎片。

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来源期刊

Marine and Freshwater Behaviour and Physiology 生物-海洋与淡水生物学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Marine and Freshwater Behaviour and Physiology is devoted to the publication of papers covering field and laboratory research into all aspects of the behaviour and physiology of all marine and freshwater animals within the contexts of ecology, evolution and conservation. As the living resources of the world’s oceans, rivers and lakes are attracting increasing attention as food sources for humans and for their role in global ecology, the journal will also publish the results of research in the areas of fisheries biology and technology where the behaviour and physiology described have clear links to the contexts mentioned above. The journal will accept for publication Research Articles, Reviews, Rapid Communications and Technical Notes (see Instructions for authors for details). In addition, Editorials, Opinions and Book Reviews (invited and suggested) will also occasionally be published. Suggestions to the Editor-In-Chief for Special Issues are encouraged and will be considered on an ad hoc basis. With the goal of supporting early career researchers, the journal particularly invites submissions from graduate students and post-doctoral researchers. In addition to recognising the time constraints and logistical limitations their research often faces, and their particular need for a prompt review process, accepted articles by such researchers will be given prominence within the journal (see Instructions for authors for details).