Why do viperfish avoid engaging in prolonged, high-speed chases?

Answer

Such chases burn precious calories that are difficult to replenish

Energy efficiency is paramount in the deep ocean. High-speed chases represent a significant caloric expenditure that is rarely justifiable or sustainable in an environment where successful food encounters are scarce. The ambush method allows the viperfish to conserve energy while waiting for high-yield prey opportunities.

Why do viperfish avoid engaging in prolonged, high-speed chases?
dietViperfish