A one-day seminar on Monday brought delegates from 12 developing countries, most of them not IWC members, to Tokyo to discuss "sustainable use" of whales.

An official told the BBC that Japan hoped these nations would join the IWC.

On Thursday, the IWC begins a three-day meeting in London aiming to plot a new course for the fractured organisation.

Officially charged with the effective regulation of commercial whaling, many of its member countries would prefer its central remit to become conservation of the "great whales" and their close relatives such as dolphins and porpoises, with virtually all hunting banned.

But Japan, Norway, Iceland and their allies in the pro-sustainable use bloc argue that there is no reason in principle why whales cannot be hunted like other wild creatures, provided quotas are small enough to be sustainable.

Click here to read the complete story on BBC-UK.