Fishes eat very little during the winter as their metabolism slows down as their metabolism slows down.
Explanation:
Fishes are cold blooded animals and their body temperature is regulated with the change in the water temperature. When the water temperature becomes cold the fishes slow down in feeding. Fishes during winter undergoes certain changes in their body which slows down their metabolism rate.
When their metabolism slows down they will not stop feeding completely but lessen their feeding habit. During winter they also become less active. They seek pocket holes and go to that particular place and stay still. This helps them conserve energy.