Postweaning horizontal movements and diving behavior of a recovering grey seal (Halichoerus grypus atlantica) population in the western North Atlantic

Table 1 Summary of grey seal satellite relay data logger deployments from 2019 to 2023

year	sex	N	mass (kg)^a	length (cm)^a	girth (cm)^a	tag duration (d)^a
2019	♀	5^b	32.2 (3.5)	103.6 (7.4)	93.0 (8.9)	122.1 (62.5)
2019	♂	6	44.0 (7.8)	116.0 (12.2)	101.0 (9.8)	143.1 (53.9)
2020	♀	12	38.0 (6.7)	104.7 (7.4)	97.0 (6.2)	155.7 (82.1)
2020	♂	8	40.2 (7.3)	106.9 (5.5)	97.9 (6.0)	172.3 (90.8)
2021	♀	0	NA	NA	NA	NA
2021	♂	1	43.2	127.0	89.0	88.9
2022	♀	8	37.5 (9.2)	106.8 (6.6)	89.1 (10.3)	103.0 (56.0)
2022	♂	6	37.9 (7.1)	118.2 (9.2)	92.5 (9.5)	118.7 (73.8)
2023	♀	7	39.2 (5.4)	109.6 (4.9)	100.0 (6.7)	146.0 (37.8)
2023	♂	10^b	37.7 (7.4)	106.4 (17.6)	104.8 (13.2)	102.0 (61.5)
Total	♀	32	37.2 (6.9)	106.1 (6.7)	95.0 (8.6)	135.6 (66.1)
Total	♂	31	39.8 (7.3)	111.3 (13.2)	99.4 (10.7)	131.9 (73.0)

N indicates the number of each respective sex tagged in a given year. Mass, total body length, and girth measurements are reported here as the mean and standard deviation for a given year, sex combination. Tag duration indicates number of days that an SRDL was on an animal and transmitting data
a: mean(± standard deviation), where n > 1
b: one logger failed to transmit and was removed for calculating mean tag duration (total = 1F, 1 M)
N = number of individuals tagged

ISSN: 2050-3385