Russia temporarily stopped exporting black caviar and halted commercial fishing of sturgeon in the Caspian Sea recently in an effort to save the fish from extinction.

• 为了保护鲟鱼使之免于灭绝，俄罗斯最近暂时停止了黑鱼子酱的出口，并停止在里海的商业性捕鱼行动。