When non-native fish are released into lakes and rivers, one tool officials have for predicting the impact on native species is an equation called the Propagule Pressure Index.
onlinelibrary.wiley.com/doi/10.1002/...
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Adjusting the Riverine Propagule Pressure Index for Fish Introduction Events in Lakes: A Theoretical Framework
The Propagule Pressure Index (PPI) is commonly used in riverine systems to understand the environmental impacts of non-native species introductions. As not all introduction events are equal, we propo...
