Fixed Behaviors
The post-larval migration of E. soleae on the host’s surface ranges from 10–40 days where maintenance of navigational signals must remain intact over the entire period of migration.
Egg hatching of E. soleae induces a releaser response where the larva swims up and down the water column in the ocean to find the sole host.
During migration, E. soleae larva utilizes the physical features of the host’s scales as guidance for movement towards the head. The haptor attaches to the host’s scales as a lock and key mechanism where the axis of the haptor aligns with the longitudinal axis of the sole towards the head.
E. soleae demonstrate host-specific behavior by attaching to the sole epidermis by the presence of sole mucous cells.
Read more about this topic: Entobdella Soleae
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