GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - XOBBRSP57CS2H4CRK

Princessfish are a species of coral-reef fish that are captured alive by divers who first stun the individual fish by squirting a certain poison at them. Since the divers limit their catch to a few individuals and take care not to overfish, the divers' continuing activities will clearly not result in serious harm to populations of princessfish.