Improving emergence location estimates for Argos pop-up transmitters

Table 1 Life History Transmitter (LHX) tag summary (n = 24)

Tag	Deployment site	Transmission rate (s)	Average daily drift (km)	First location and deployment distance (LC)	Prop. LC 2/3	# hours to first location	# hours to first LC 2/3
LHX692*	Caines Head	25	15	0.8 (2)	0.40	< 1	4
LHX699	Caines Head	46	12	3.1 (1)	0.20	2	2
LHX675	Caines Head	53	13	5.3 (A)	0.30	3	17
LHX695	Caines Head	47	14	6.2 (B)	0.10	3	6
LHX685**	Caines Head	56	11	2.1 (0)	0.20	< 1	19
LHX681	Caines Head	48	15	2.5 (0)	0.60	< 1	15
LHX673	Calisto Head	52	5	3.0 (B)	0.32	2	7
LHX693	Calisto Head	45	10	8.1 (A)	0.12	3	19
LHX810*	Calisto Head	26	6	5.2 (0)	0.70	2	2
LHX691**	Calisto Head	55	7	2.2 (3)	0.45	2	2
LHX676	Calisto Head	49	6	2.0 (A)	0.60	2	4
LHX686	Calisto Head	50	6	2.9 (B)	0.40	2	2
LHX680*	Lone Island	26	10	1.2 (0)	0.30	< 1	< 1
LHX698	Lone Island	45	7	2.9 (1)	0.20	< 1	5
LHX683	Lone Island	47	6	1.3 (0)	0.10	< 1	2
LHX690	Lone Island	49	8	3.7 (0)	0	< 1	4
LHX696**	Lone Island	51	10	1.8 (1)	0.20	< 1	2
LHX702	Lone Island	53	9	4.5 (A)	0.30	2	4
LHX674*	Perry Strait	25	16	2.1 (3)	0.50	< 1	< 1
LHX682	Perry Strait	46	20	3.1 (3)	0	< 1	< 1
LHX684	Perry Strait	48	21	4.5 (A)	0	< 1	3
LHX689	Perry Strait	50	25	15 (B)	0.10	5	24
LHX694	Perry Strait	52	26	3.0 (3)	0.25	1	1
LHX701**	Perry Strait	54	21	1.4 (3)	0.15	< 1	< 1

*Represents tags with “fast” transmission rate versus **tags with slow repetition rates. Proportion of location class (LC) 2/3 represents the proportion of location classes 2 (< 250–500 m) and 3 (< 250 m) within the first 24 h. The first location and deployment distance designates the distance between the first computed location we obtained via satellite and the deployment site along with the resulting location class

ISSN: 2050-3385