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Table 1.

Summary of swim speed characteristics obtained visually for each seal at each patch distance

				Swim speed (m s^–1)
		N			40 m			80 m			120 m			All distances
Seal ID	Age	Descent	Ascent	Descent	Ascent	Descent	Ascent	Descent	Ascent	Max	Descent	Ascent
L	A	536	530	1.87±0.28	1.49±0.25	1.81±0.20	1.45±0.26	1.79±0.27	1.35±0.20	2.67	1.82±0.26	1.42±0.24
Q	A	432	432	1.25±0.28	0.98±0.24	1.16±0.27	0.90±0.24	1.16±0.1	0.99±0.14	2.00	1.2±0.26	0.95±0.22
K	P	313	296	2.27±0.28	1.78±0.26	1.91±0.25	1.45±0.21	1.90±0.19	1.57±0.16	2.86	2.00±0.30	1.53±0.25
N	P	165	150	2.20±0.33	2.00±0.23	1.85±0.27	1.55±0.1	1.88±0.24	1.66±0.15	2.86	2.01±0.33	1.77±0.5
R	P	193	194	2.06±0.27	1.53±0.23	1.81±0.14	1.61±0.19	1.77±0.25	1.59±0.22	2.86	1.87±0.24	1.58±0.21
W	P	1239	1228			1.77±0.15	1.63±0.18			2.42	1.77±0.15	1.63±0.18
X	P	309	309			1.7±0.27	1.54±0.29			3.2	1.7±0.27	1.54±0.29

				Swim speed (m s^–1)
		N			40 m			80 m			120 m			All distances
Seal ID	Age	Descent	Ascent	Descent	Ascent	Descent	Ascent	Descent	Ascent	Max	Descent	Ascent
L	A	536	530	1.87±0.28	1.49±0.25	1.81±0.20	1.45±0.26	1.79±0.27	1.35±0.20	2.67	1.82±0.26	1.42±0.24
Q	A	432	432	1.25±0.28	0.98±0.24	1.16±0.27	0.90±0.24	1.16±0.1	0.99±0.14	2.00	1.2±0.26	0.95±0.22
K	P	313	296	2.27±0.28	1.78±0.26	1.91±0.25	1.45±0.21	1.90±0.19	1.57±0.16	2.86	2.00±0.30	1.53±0.25
N	P	165	150	2.20±0.33	2.00±0.23	1.85±0.27	1.55±0.1	1.88±0.24	1.66±0.15	2.86	2.01±0.33	1.77±0.5
R	P	193	194	2.06±0.27	1.53±0.23	1.81±0.14	1.61±0.19	1.77±0.25	1.59±0.22	2.86	1.87±0.24	1.58±0.21
W	P	1239	1228			1.77±0.15	1.63±0.18			2.42	1.77±0.15	1.63±0.18
X	P	309	309			1.7±0.27	1.54±0.29			3.2	1.7±0.27	1.54±0.29

A, adult; P, pup

Swim speeds are means ± s.d.