Comparative Study of Sun Compass Orientation in Migrating Anadromous versus Resident Freshwater Threespine Sticklebacks (<i>Gasterosteus aculeatus</i>).

Although marginally non-significant, the TS fish orientated themselves preferentially to the South–East (mean vector = 115° ± 90°SD; see Fig. 3 ), which resulted in a statistically significant difference between the two datasets, Sun and TS, of 78° (Mardia–Watson–Wheeler test; W = 8.85, P = 0.012).

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