Environmental Biology of Fishes

, Volume 78, Issue 2, pp 107–114

Tilapia (Teleostei: Cichlidae) status in Nicaraguan natural waters


    • Faculty of Science, Technology and EnvironmentUniversity of Central America
    • Conservation Management Institute, College of Natural ResourcesVirginia Tech
  • Brian R. Murphy
    • Conservation Management Institute, College of Natural ResourcesVirginia Tech
  • Jay R. StaufferJr.
    • School of Forest ResourcesThe Pennsylvania State University
  • Sherman S. Hendrix
    • Biology DepartmentGettysburg College
Original paper

DOI: 10.1007/s10641-006-9080-x

Cite this article as:
McCrary, J.K., Murphy, B.R., Stauffer, J.R. et al. Environ Biol Fish (2007) 78: 107. doi:10.1007/s10641-006-9080-x


We surveyed the watersheds covering more than 80% of the surface area of Nicaragua, and review the history of deliberate introductions and unintentional invasion of tilapias, Oreochromis spp., into the freshwater of Nicaragua. The species have become widely established, with a range of negative consequences for the rich natural fish fauna of this Central American country. Tilapias compete directly with native cichlids in a number of ways, and have also supplanted native species as food fish in local markets. We suggest that introduced tilapias may have been responsible for the outbreak of blindness in native cichlids. We make recommendations on the management of these exotic species and on further introductions.


TilapiaInvasive speciesNicaraguaFisheriesAquacultureCichlids

Copyright information

© Springer Science+Business Media B.V. 2006