Overview: Our focus today is Shirauo, often called noodlefish in English. These beautiful fish have tiny, transparent bodies that grow up to only 10 centimeters long. They are both precious and pricey as the fish can only survive in brackish water conditions where freshwater meets seawater. Fishing for Shirauo symbolizes the coming of spring, their peak season. Visit a lake in the northern prefecture of Aomori to find out more about this mysterious fish.