Environmental Biology of Fishes

, Volume 27, Issue 4, pp 303–308

The effects ofTilapia introductions in Lake Luhondo, Rwanda

  • Luc De Vos
  • Jos Snoeks
  • Dirk Thys van den Audenaerde

DOI: 10.1007/BF00002748

Cite this article as:
De Vos, L., Snoeks, J. & van den Audenaerde, D.T. Environ Biol Fish (1990) 27: 303. doi:10.1007/BF00002748


Cyprinid fishes apparently constituted the major part of the original fish fauna in Lake Luhondo, Rwanda, at least until 1934. At that time only three species, all cyprinids, were known from the lake:Barbus neumayeri, a small barbel, very common in the lake (described from the lake asBarbus luhondo) and two larger cyprinid species:Barbus microbarbis andVaricorhinus ruandae. These two large species were probably not very common in the lake. Between 1935 and 1938 some youngTilapia were introduced into Lake Luhondo. Since then and certainly since 1952 the large cyprinids seem to have disappeared completely from the lake. The smallBarbus neumayeri has become extremely rare; at present it survives only in some small tributaries of the lake. In the lake itselfTilapia andHaplochromis species are now the dominant fauna. A survey of the available information is given.

Key Words

Fish introductionsAfricaCichlidsBarbusHaplochromisLake managementFisheries

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • Luc De Vos
    • 1
  • Jos Snoeks
    • 2
  • Dirk Thys van den Audenaerde
  1. 1.Institut National de Recherche ScientifiqueRwandaBelgium
  2. 2.Zoölogisch Instituut, University of LeuvenBelgium