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	Provedor de dados RChHN (2) Autor ARISMENDI,IVÁN (2) JARA,FERNANDO (2) SOTO,DORIS (2) GONZÁLEZ,JORGE (1) GUZMAN,ERWIN (1) JARA,CARLOS (1) LARA,ANTONIO (1) PRINZIO,CECILIA DI (1) SANZANA,JOSÉ (1) Mais... Palavra-chave Catchments characteristics (1) Galaxid fish (1) Naturalized populations (1) Nutrients uploads (1) Salmon farming (1) Salmon invasion (1) Sport fishing potential (1) Trout invasion (1) Mais... Tipo do documento Journal article (2) Ano 2007 (1) 2006 (1) País Chile (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Establishment of Chinook salmon (Oncorhynchus tshawytscha) in Pacific basins of southern South America and its potential ecosystem implications RChHN SOTO,DORIS; ARISMENDI,IVÁN; PRINZIO,CECILIA DI; JARA,FERNANDO. Salmon and trout species are not native to the southern hemisphere, however rainbow and brown trout have been established a century in southern South America. Yet most attempts to introduce anadromous salmon failed until the onset of aquaculture by 1980. Escapes of Oncorhynchus tshawytscha (Chinook salmon) from aquaculture after 1990 have apparently produced increasingly important reproductive returns "naturalized", to upper basins in Chile and Argentina south of 39º S. In this paper we show data on the historic and spatial occurrence of chinook salmon in four Pacific basins during the past decade. Our objective is to establish the progress of the settlement forecasting some ecosystem disruptions in order to project and manage potential impacts. In Chile,... Tipo: Journal article Palavras-chave: Salmon invasion; Naturalized populations; Nutrients uploads; Sport fishing potential. Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000100007 Southern Chile, trout and salmon country: invasion patterns and threats for native species RChHN 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 Registros recuperados: 2 Primeira ... 1 ... Última

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