March of the sculpin: measuring and predicting short-term movement of banded sculpin Cottus carolinae

摘要: Movement of fishes through space and time is critical for population regulation community structuring, but the dispersal many benthic stream remains unstudied. We used passive integrated transponders to track short-term 51 banded sculpin Cottus carolinae throughout a 600 m reach Little Creek in central Tennessee during April May. Our objectives were assess efficacy recently developed models, evaluate temporal variability movement determine whether individuals switched between stationary mobile behaviours. Observed distances did not differ from modelled leptokurtic kernels estimated using fishmove package R Statistical Environment 12 13 recapture occasions. Leptokurtic kernel parameters including component (σmob) shared (p) temporally dynamic differed static median values reported fishmove, while more abundant (σstat) showed agreement with fishmove. The occasion which model predictions validated was associated large flow pulse that stimulated increased at scale. At individual scale, 28 fish behaviour frequency distribution switches leptokurtic. Collectively, our findings reveal an emergent property characterised by consistent upstream despite population-scale responses individual-scale behaviour. This paradox represents march sculpin, diffusively spread constant rate multiscale