You can easily differentiate a flounder from other flatfish by the humps on its upper side. Anglers say its skin feels a bit like sandpaper. Like all other flatfish, the flounder begins its life as symmetrical larva. Only after reaching a body size of about one centimetre will the larva begin its spectacular metamorphosis – where the left eye shifts over to the right-hand side and the body flattens out. Flounders feel particularly at home in brackish water. The young ones, especially, like to swim up rivers switching between fresh and salty water.
Baltic Sea LIFE - DISCOVER.UNDERSTAND.PROTECT.