Gill morphology of Bagrus bayad (Forskal, 1775) using scanning electron microscopy,Microscopy Research and Technique

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Gill morphology of Bagrus bayad (Forskal, 1775) using scanning electron microscopy
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2021-07-11 , DOI: 10.1002/jemt.23864
Naglaa F Bassuoni ₁

Affiliation

The work under investigation is carried out to describe the gross morphology and ultrastructure of the gills of the species Bagrus bayad grossly and with the help of scanning electron microscopy. The current work carried on ten fresh adult Bagrus bayad. Bagrus bayad is a genus of the Bagridae family. Our results revealed that the operculum opened caudoventrally. The wide interbranchial septum consisted of four transverse raised areas on each side that connected by transverse lines caudal to the base of the tongue. The gill arch is divided into long ceratobranchial and the short epibranchial clearly and formed an angle between them in the first three gill arches but in the fourth-gill arch is not clear. The first two gill arches have only lateral rackers. The first arch carried well-developed long rackers while rackers on the following rows were short. The majority of gill rackers were short as an adaptation of the carnivorous feeding habit of the Bagrus bayad. The gill arch and rackers were covered by pavement cells with chloride and mucus cells. The pavement cell surface has numerous microridges giving them the fingerprint's appearance. The gill filament's length is nearly fixed along the entire gill arch. Along the gill arch, and the gill filament carried leaf-like gill lamellae. At higher magnification, the gill filament appeared covered by irregular polygonal cells that have concentric microridges.

中文翻译：

使用扫描电子显微镜观察 Bagrus bayad (Forskal, 1775) 的鳃形态

正在研究的工作是在扫描电子显微镜的帮助下粗略地描述Bagrus bayad物种的鳃的总体形态和超微结构。目前的工作进行了十个新鲜成年巴格鲁斯巴亚德。巴格鲁斯巴亚德是Bagridae 科的一个属。我们的结果显示，鳃盖在尾腹侧打开。宽阔的分支间隔由每侧四个横向凸起区域组成，通过横向线连接到舌根尾部。鳃弓清晰地分为长角鳃和短上鳃，在前三个鳃弓中它们之间形成一个角度，而在第四鳃弓中不清楚。前两个鳃弓只有侧齿。第一个拱门带有发达的长齿条，而随后几排的齿条较短。大多数鳃架都很短，因为它适应了Bagrus bayad的食肉习性. 鳃弓和齿条被带有氯化物和粘液细胞的路面细胞覆盖。路面细胞表面有许多微脊，使它们具有指纹的外观。鳃丝的长度沿着整个鳃弓几乎是固定的。沿鳃弓，鳃丝携带叶状鳃片。在更高的放大倍数下，鳃丝似乎被具有同心微脊的不规则多边形细胞覆盖。

更新日期：2021-07-11

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