Table 3 Influence of the occurrence of eddies, filaments and current speed on heading velocity

HV ~ OW _category

Intercept

Presence of eddy

P _intercept /P _variable

_{∆AIC Null}

 M1 – Outward phase

3.57 ± 0.20

−0.14 ± 0.40

<0.0001/NS

+1.87

 M2 – Central phase

1.62 ± 0.11

0.12 ± 0.16

<0.0001/NS

+3.30

 M3 – Inward phase

3.43 ± 0.25

−0.635 ± 0.29

<0.0001/< 0.05

- 2.14

HV ~ FSLE _(>0.1)

Intercept

FSLE _(>0.1)

P _intercept /P _variable

_{∆AIC Null}

 M4 – Whole trip

3.60 ± 0.51

−7.29 ± 2.78

<0.001/< 0.05

- 6.40

TV ~ Current speed

Intercept

Current speed

P _intercept /P _variable

_{∆AIC Null}

 M5 – Whole trip

3.51 ± 0.19

−1.51 ± 0.24

<0.001/<0.001

−27.38