ABSTRACT
Our experiences show that we bend our bodies and stay low to present a smaller area against strong wind to prevent being blown over. We know that migratory fish have characteristic morphologies such as a streamlined body shape and a relatively small cross-sectional area to reduce drag. What are the mechanisms of migratory fish for high-speed and long-distance travel? Functions used for migration and maneuvering are examined from the perspective of the hydrodynamic properties of Pacific bluefin tuna.
