Information 2006-07-08

The introduction and spread of non-native, invasive fish species in freshwater and marine environments is a worldwide problem that is increasing rapidly in frequency.

Professor Dr. Carlos Fernández-Delgado at the University of Cordoba initiated the first restoration of a lake in Andalusia, Laguna de Zóñar. The objective was to enable the endangered duck species Oxyura leucocephala and other duck species to return to the lake by eradicating the carp population with rotenone. The result is overwhelming. Today, after the eradication in 2006, around 120 numbers of Oxyura leucocephala have returned to the lake.

Please read below information from 2006, 2007 and 2008.

Information 2006
Rotenone is an essential tool in fisheries management. An 8-page Brochure describing the situation at the end of 2006.
CFT_LEGUMINE_8 PAGE.pdf

Information 2007
Restoration of the Waterfowl fauna in Laguna de Zonar, Andalusia. A 4-page leaflet describing the situation one Year after carp eradication.
CFT-LEGUMINE_4 PAGE.pdf

Information 2008
The objective was achieved - The White-Headed Duck, Oxyura leucocephala,
has returned to Laguna De Zonar.
CARPA-CORREGIDO.pdf

- Restoration; is the objective.

- Rotenone; is a management tool for eradication of invasive,
undesirable fish species.