Abstract
Abstract The Gila topminnow (Poeciliopsis occidentalis), an endangered poeciliid, rapidly declined in two Arizona springbrooks after colonization by non-native mosquitofish. This characteristic outcome of interaction between these two species results from mosquitofish predation and generally leads to local extinction of the native fish. After removing a replacement population of topminnows, one springbrook was poisoned with Antimycin A in an attempt to remove all mosquitofish. Although mosquitofish appeared to be eliminated, and the re-introduced topminnows quickly expanded to large populations, mosquitofish again were present in the system several months later. Renovation attempts at other localities have produced similar results, and serve to illustrate difficulties involved in removing a fish species from a habitat for management purposes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
