Table 1. Summary of acoustic and satellite tag deployments on tiger sharks at the three tagging locations within the Galapagos Marine Reserve in 2014–15.
Shark ID | Tagging date | TL (cm) | Sex | Satellite | Acoustic | |||||
---|---|---|---|---|---|---|---|---|---|---|
Days transmitting | % residency time* | Days monitored** | Days transmitting | No. detections | RI*** (per tagging site) | |||||
Bachas-Salinas | ||||||||||
TS1 | 30-Jan-2014 | 274 | F | 116 | 90.48 | 307 | 152 | 761 | 0.50 | |
TS2 | 30-Jan-2014 | 251 | F | 210 | 74.83 | 79 | 19 | 150 | 0.24 | |
TS3 | 30-Jan-2014 | 248 | F | 127 | 99.02 | - | - | - | - | |
TS4 | 30-Jan-2014 | 383 | F | 333 | 82.78 | 262 | 111 | 438 | 0.42 | |
TS5 | 11-Jun-2015 | 225 | F | - | - | 104 | 71 | 482 | 0.68 | |
TS6 | 11-Jun-2015 | 240 | F | 67 | 98.48 | 104 | 47 | 185 | 0.45 | |
Average TL ± SE = 270.17 ± 23.49 | ||||||||||
Cerro Ballena | ||||||||||
TS7 | 23-Jul-2014 | 140 | F | - | - | 180 | 41 | 140 | 0.23 | |
TS8 | 23-Jul-2014 | 224 | M | 25 | 87.50 | 303 | 68 | 510 | 0.22 | |
TS9 | 24-Jul-2014 | 234 | F | 26 | 100.00 | 271 | 16 | 82 | 0.06 | |
TS10 | 24-Jul-2014 | 171 | F | 21 | 100.00 | 286 | 45 | 399 | 0.16 | |
TS11 | 24-Jul-2014 | 260 | F | 115 | 100.00 | - | - | - | - | |
TS12 | 7-Oct-2014 | 180 | M | - | - | 113 | 23 | 376 | 0.20 | |
TS13 | 7-Oct-2014 | 180 | M | - | - | 195 | 93 | 1183 | 0.48 | |
TS14 | 21-Feb-2015 | 206 | F | 58 | 78.12 | 74 | 10 | 23 | 0.14 | |
TS15 | 21-Feb-2015 | 202 | M | 84 | 98.30 | 177 | 16 | 99 | 0.09 | |
Average TL ± SE = 199.67 ± 12.14 | ||||||||||
Isabela-South | ||||||||||
TS16 | 22-Feb-2015 | 378 | F | 128 | 100.00 | - | - | - | - | |
TS17 | 22-Feb-2015 | 282 | F | 14 | 100.00 | 58 | 1 | 1 | - | |
TS18 | 22-Feb-2015 | 324 | M | 45 | 100.00 | 118 | 2 | 2 | - | |
TS19 | 23-Feb-2015 | 286 | M | 66 | 95.61 | - | - | - | - | |
TS20 | 23-Feb-2015 | 242 | M | 37 | 100.00 | 68 | 1 | 1 | - | |
Average TL ± SE = 302.40 ± 22.93 |
*% residency time refers to the percent of time spent in resident behaviour within the GMR, as determined by the SSSM model.
**Days monitored refers to the number of days that the shark could be detected by the acoustic receivers (note that acoustic receivers were deployed after the sharks were tagged).
***RI = residency index per site (i.e., total number of days a shark was detected divided by the number of days that the shark was monitored by the receivers).