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Different ossification patterns of intermuscular bones in fish with different swimming modes
Wenjie Yao1, Yaoping Lv2, Xiaoling Gong1
1The Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, Shanghai 201306, China.
Biology Open
|November 26, 2015
Summary
Swimming activity influences the development of intermuscular bones in fish. Tail amputation reduced bone length, suggesting mechanical forces from swimming induce ossification in zebrafish and Japanese eels.
Area of Science:
- Ichthyology
- Developmental Biology
- Biomechanics
Background:
- Intermuscular bones in teleosts are located in myosepta.
- Limited information exists on their development and ossification.
Purpose of the Study:
- Investigate the ossification process of intermuscular bones during development.
- Examine the influence of swimming and mechanical forces on bone formation.
Main Methods:
- Comparative study of ossification in zebrafish (Danio rerio) and Japanese eel (Anguilla japonica).
- Analysis of intermuscular bone development following tail amputation in both species.
Main Results:
- Ossification patterns differed: anterior-to-posterior in Japanese eels, posterior-to-anterior in zebrafish.
- Tail amputation reduced posterior intermuscular bone length in both species, correlating with reduced swimming activity.
- Greater tail amputation in zebrafish led to shorter intermuscular bones.
- Anterior intermuscular bone length was reduced in zebrafish but not Japanese eels post-amputation.
Conclusions:
- Swimming-induced mechanical forces likely stimulate intermuscular bone ossification.
- Species-specific swimming mechanics influence ossification patterns and responses to injury.
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