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| SOTO,DORIS; ARISMENDI,IVÁN; GONZÁLEZ,JORGE; SANZANA,JOSÉ; JARA,FERNANDO; JARA,CARLOS; GUZMAN,ERWIN; LARA,ANTONIO. |
| In order to evaluate the present distribution patterns of salmonids and their potential effects on native fish, we sampled 11 large lakes and 105 streams, encompassing a total of 13 main hydrographic watersheds of southern Chile (39° to 52°S). Overall, trout (Salmo trutta and Oncorhynchus mykiss) accounted for more than 60 % of total fish abundance and more than 80 % of total biomass, while 40 % of the streams sampled did not have native fish. Salmon, introduced for aquaculture, such as O. kisutch, Salmo salar, and O. tshawytscha, were only present in lakes with salmon farming and did not seem to be reproducing naturally in affluent streams. We tested the effect of river geographic origin (Andes mountains, central valley, or Coastal range) on fish... |
| Tipo: Journal article |
Palavras-chave: Trout invasion; Galaxid fish; Salmon farming; Catchments characteristics. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000100009 |
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