"P. notatus spends its winters deep in the ocean and its summers in the intertidal zone, where the male fish make humming noises that draw the females near. The authors previously showed that the hair cells in the ears of both male and female fish were tuned to the frequencies of the male mating calls during the reproductive season but not year-round."-http://www.the-scientist.com//?articles.view/articleNo/38383/title/Herring-Impaired/-Turned on automatically