A panel of the the Land, Infrastructure and Transport Ministry has drawn up a set of rules that would allow the extermination of some fish and animals introduced to Japan that are endangering their indigenous counterparts, ministry sources said Sunday.

The rules are the first on the issue to be drafted by a government body. They also leapfrog similar plans mired down in talks within the Environment Ministry, the sources said.

Adopted species targeted by the study group include the black bass and false acacia, the sources said.