Einzelnen Beitrag anzeigen
Alt 12.12.2005, 22:40   #1
Walter
Herr Prof. Obermoserer
 
Benutzerbild von Walter
 
Registriert seit: 02.01.2003
Beiträge: 4.130
Images: 552
Local fish extinction in a small tropical lake in Brazil

Paulo dos Santos Pompeu and Carlos Bernardo Mascarenhas Alves. 2003.
Local fish extinction in a small tropical lake in Brazil. Neotropical Ichthyology, 1(2):133-135



Summary:

Lagoa Santa is a shallow permanent lake, located in Belo Horizonte metropolitan region, Brazil. In this study, the loss in fish diversity of the lake over the past 150 years is evaluated. Local extinction of almost 70% of the original fish fauna is described. Probably, the main causes of this richness loss were: obstruction of natural communication with rio das Velhas, non-native species introduction, change in the water level, organic pollution, and elimination of littoral and submerged vegetation.


PDF






__________________
Grüße, Walter
Walter ist offline   Mit Zitat antworten