Given a text, write a compressed version of it in a single sentence.

Impatient with regulators, the National Environmental Trust began a boycott campaign in February called " Take a Pass on Chilean Seabass. " The Washington - based conservation group says more than 530 restaurants have signed on.
National Environmental Trust began a campaign in February called " Take a Pass on Chilean Seabass. " The conservation group says more than 530 restaurants have signed.