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Published online 30 September 1999 | Nature | doi:10.1038/news990930-9
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Bass are bad news for lake trout
Ecologists are developing intriguing techniques for assessing the impact of introduced species on ecosystems.
Ecologists have been inspired by the old adage "You are what you eat" to develop a reliable way of detecting and predicting potential damage and loss of diversity in natural ecosystems after invasion by a non-native species.
M.Jake Vander Zanden of the Department of Biology at McGill University, Montréal, Canada, and colleagues have been looking at changes in the diet of the native Canadian lake trout (Salvelinus namaycush) that have been forced on it by invasion of its home by two non-native fish species: the smallmouth bass (Micropterus dolomieu) and rock bass (Ambloplites rupestris).
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