Question

Where and how does ammonification/ nitrification take place

Answer 1

Bacteria converted to ammonia, then to nitrite and nitrate. Ammonia and Nitrite must be in light so ammonification/nitrification can occur below euphotic zone near the ocean.

Answer 2

Bacteria convert ammonia to nitrite and nitrate but they must be in light so this must occur below the euphotic zone in the ocean.