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 Japans 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.<br /><br />Is it still possible to preserve them? And how?