研究目的
To describe the gill morphology of two bottom feeders Mediterranean Sea fishes: Striped red mullet fish (M. surmuletus) and grey gurnard fish (E. gurnardus) that showed the same feeding habits.
研究成果
The study concluded that although the two fishes belonged to the bottom feeder Mediterranean Sea fishes and shared the same marine living and feeding habits, there were significant differences in the shape, arrangement, and number of gill arches, filaments, and rakers. The difference also included the surface appearance of the interbranchial septum. Many taste buds were observed on the gill arches and rakers of the striped red mullet. In both species, the gill rakers were characterized by the presence of the spines.
研究不足
The study is limited to the morphological description of the gills of two species of Mediterranean Sea fishes and does not explore the physiological implications of the observed differences.
1：Experimental Design and Method Selection:
The study focused on the scanning electron microscopical (SEM) features of the gills to observe differences in the gill arches and gill rakers surface in both species.
2：Sample Selection and Data Sources:
Ten mature fishes of grey gurnard (E. gurnardus) and striped red mullet (M. surmuletus) were collected from the Mediterranean Sea.
3：List of Experimental Equipment and Materials:
Digital camera (Cannon IXY 325, Japan), JEOL JSM 5300 scanning electron microscope.
4：Experimental Procedures and Operational Workflow:
The gills were examined in situ, dissected, and photographed. Samples were fixed in glutaraldehyde, dehydrated through a graded series of acetone, post-fixed in osmium tetroxide, and examined with SEM.
5：Data Analysis Methods:
The SEM images were analyzed to compare the morphological features of the gills between the two species.
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