Whale Wars" TV conservationist Paul Watson quit his conservation society Tuesday because of a recent federal court injunction against him and his group's anti-whaling activities.

Last month, the Japanese research foundation Institute of Cetacean Research and the Japanese firm Kyodo Senpaku Kaisha Ltd. secured a U.S. District Court injunction against Watson and his Sea Shepherd Conservation Society, according to the institute's website.

The injunction prohibits Watson and his group from coming within 500 yards of the plaintiffs on the open sea, according to a copy of the court document on the institute's website.

Watson has become renowned for his attempts to disrupt Japanese whalers on the open water through Animal Planet's "Whale Wars" TV show.