Sea urchins from the area around the Kuril Islands are in constant demand in Japan. <br />Each day scores of Russian ships are unloaded in the north of the island of Hokkaido. <br />Maritime villages in Japan’s backwoods have turned into prosperous townships <br />during the over years of brisk trade with the Russians. But the different sea creatures like trepangs and others are now on the verge of disappearing.