Table 1.
Device deployment summary information.
| Deployment site (year) | Region | Device type | No. tagged seals | Mean no. locations day−1 ± SD | Total no. trips | Total no. dives | ||
|---|---|---|---|---|---|---|---|---|
| f | m | Total | ||||||
| Isle of May (2001) | NS | SRDL | 5 | 6 | 11 | 4.5 ± 2.3 | 109 | N/A |
| Isle of May (2002) | NS | SRDL | 5 | 5 | 10 | 5.2 ± 1.7 | 67 | N/A |
| Bardsey (2009) | CIS | GPS-GSM | 2 | 0 | 2 | 35.5 ± 5.4 | 23 | 3871 |
| The Skerries (2009) | CIS | GPS-GSM | 1 | 2 | 3 | 33.1 ± 5.7 | 141 | 9373 |
| The Skerries (2010) | CIS | GPS-GSM | 4 | 1 | 5 | 57.2 ± 13.8 | 212 | 46589 |
| Ramsey (2010) | CIS | GPS-GSM | 3 | 4 | 7 | 37.3 ± 9.7 | 162 | 27609 |
| Muckle Green Holm (2010) | NS | GPS-GSM | 4 | 3 | 7 | 22.5 ± 9.6 | 38 | 7417 |
| Stroma (2010) | NS | GPS-GSM | 5 | 2 | 7 | 24.4 ± 4 | 84 | 7941 |
| Total: | 29 | 23 | 52 | 836 | 102800 | |||
Tagged pup sample sizes and tag duration by deployment site and year. Trip and dive numbers given are those included in the analysis after data cleaning and restriction to 120 days after leaving the colony. Although SRDL devices recorded dives, these could not be matched to bathymetric depth data and so were excluded from dive analysis. Colonies were assigned to two geographic regions; NS = North Sea, CIS = Celtic and Irish Seas.