What remains the primary food source for the Japanese white crucian carp variant even through adulthood?

Answer

Phytoplankton

For the Japanese white crucian carp variant, phytoplankton remains the primary food source even through adulthood, a habit reflected in their specialized pharyngeal teeth.

What remains the primary food source for the Japanese white crucian carp variant even through adulthood?
dietanimalfishcrucian carp