Histomorphological Description of the Digestive System of Pebbly Fish, Alestes baremoze (Joannis, 1835)
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
The Scientific World Journal
Abstract
Histomorphological studies of the digestive system of Alestes baremoze captured from Lake Albert, Uganda, were done using
standard procedures. These revealed that A. baremoze has a fleshy-lipped terminal small mouth, large molar, short oesophagus,
a three-lobed liver, pouch-like stomach, a nine-fingered caeca, and a long tubular intestine. A stratified squamous epithelium
with numerous mucus-secreting cells lined the lips with no taste buds. Stratified squamous epithelia lined the oesophagus in
the anterior portion which turned into a columnar epithelium towards the stomach. The lamina propria had numerous tubular
glands throughout the entire oesophageal length.The stomach consisted of three distinct regions (cardiac, fundic, and pyloric) with
distinguished lamina propria glands.The intestinal mucosa was thrown into villi of varying heights, with the tallest in the anterior
part, lined with a simple columnar epithelium with numerous lymphocytes-like infiltrations. Numerous goblet cells appeared in
the intestinal lamina epithelialis; these increased uniformly towards the anal opening. The liver was divided into lobules, with a
central vein. Hepatocytes were visibly arranged closely, forming irregular cords, and the scattered tubular acinar glands formed
the exocrine pancreas (hepatopancreas). Stomach content analysis indicated that the fish eats plankton, mollusks, crustaceans, and insects as the main proportion of its diet.
Description
Keywords
Histomorphological, Digestive System, Pebbly Fish
Citation
Kasozi, N., Iwe Degu, G., Mukalazi, J., Kato, C. D., Kisekka, M., Owori Wadunde, A., ... & Namulawa, V. T. (2017). Histomorphological description of the digestive system of pebbly fish, Alestes baremoze (Joannis, 1835). The Scientific World Journal, 2017. https://doi.org/10.1155/2017/8591249