ปลาไพค์สวีเดนช่วยควบคุมสาหร่ายในทะเลบอลติกทางอ้อม

Algae blooms happen when simple algae plants start growing out of control. The tiny plants are not usually toxic on their own, but the overabundance creates so-called dead zones because they suck all the oxygen out of the water.