Multi-method assessment of whale shark (Rhincodon typus) residency, distribution, and dispersal behavior at an aggregation site in the Red Sea
Fig 2
Visual and acoustic recapture odds vs time of year and temporal lag.
The line graphs track the odds of recapture for the mixed models’ hypothetical “typical” and how those odds change with (A) time of year and (B) temporal lag. The dashed line represents the mean odds of recapture for both methods, putting the visual and acoustic data on the same relative scale. There are clear peaks for both methods in relation to time of year, though the visual census dataset is restricted to the spring months when surveys were conducted. Recapture odds are comparatively flat in response to temporal lag, indicating high interannual fidelity in at least a few sharks.