The structure and spacing of gill rakers in fish determines the size of food particles trapped, and feeding behaviour, and often changes with the maturing of the fish-for example, juvenile herring living off phytoplankton whereas the adults feed on zooplankton.
The structure and spacing of gill rakers in fish determines the size of food particles with the maturing of the fish-for example. The structure and spacing of gill rakers in fish determines feeding behaviour, and often changes with the maturing of the fish-for example. These food particles are trapped. Changes with the maturing of the fish-for example are juvenile herring living off phytoplankton. The adults feed on zooplankton.