Ultrastructure comparison of the mouth opening between two marine fishes with different feeding habits (Red porgy and Boops boops fish)

Document Type : Research articles

Authors

1 Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Matrouh University, Matrouh , Egypt

2 Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt

3 Department of Animal Medicine, Faculty of Veterinary Medicine, Matrouh University, Matrouh, Egypt

4 Department of Pharmacology, Faculty of Veterinary Medicine, Matrouh University, Matrouh, Egypt

Abstract

The present investigation aimed to describe two types of marine fish of different eating behavior (Carnivorous and omnivorous). The samples were collected from two different places, the Red porgy fishes were collected from the Red Sea while the Boops boops fishes were collected from the Mediterranean Sea. The total length of the Red porgy fishes was 20:23 cm while in Boops boops fishes were 17:18 cm. The gross morphology and scanning electron microscopy (SEM) explored the following. The mouth of the Red porgy fish was very large in size, very wide and broad, half circle shaped with a very prominent and strong premaxila while Boops boops was very thin. By SEM, the Red porgy upper lip was surrounded by different size teeth, it showed very striated and corrugated surface with different lines in its surface while the lower lip appeared with a cilia- like structure with different tall length and its apex somewhat thinner than its base. Boops boops fish upper lip appeared as a thick round structure with multiple prominent bumps which look-like small bushes gets out along the surface while its lower lip appeared very close to the teeth, it narrow anteriorly and increased in width posteriorly.

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