Gen Comp Endocrinol. Feb;(3) Epub Dec Sexually mature male goldfish release large quantities of androstenedione into the water.
You are absolutely correct: at breeding time mature male goldfish will develop breeding tubercles that appear as white bumps on the gill covers.
Request PDF on ResearchGate | Sexually mature male goldfish release large quantities of androstenedione to the water where it functions as a pheromone.
The common goldfish is a breed of goldfish with no other differences from its living ancestor, the However, this fear ceases in a middle-sized and mature goldfish. . In breeding condition the male will develop small white spots on his gill.