Predicting barriers to the movement of Macquarie perch (Macquaria australasica)
Barriers to the migration of fish limit access to suitable habitat and have been identified as a major contributor to the decline of freshwater fish species. GIS and fine scale elevation data were used to create a model to identify physical barriers to fish migration on the Cotter River in the ACT, Australia. The effect of spatial resolution on the efficacy of the model was also examined. Elevation data gridded at 1m, 5m, 10m and 20m were used to simulate the terrain. Two types of models were...[Show more]
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