Table S2.
Variable | Total fishers | Fishers observed* | Observed trips | Observed sets (N) | Shark per set | Shark/1,000 hooks | No. hooks/set | |||
Mean | SD | Mean | SD | Mean | SD | |||||
All fishers | 145 | 120 | 867 | 12,062 | 4.603 | 5.331 | 1.996 | 2.322 | 2,327.052 | 409.217 |
E-A fishers | 52 | 46 | 371 | 4,793 | 4.386 | 4.982 | 1.776 | 2.053 | 2,492.924 | 481.605 |
K-A fishers | 24 | 23 | 199 | 2,645 | 3.847 | 4.853 | 1.794 | 2.209 | 2,130.047 | 288.505 |
V-A fishers† | 70 | 51 | 297 | 4,624 | 5.260 | 5.843 | 2.339 | 2.592 | 2,267.808 | 307.597 |
Network groups, not including outliers | ||||||||||
E-A network | 51 | 45 | 362 | 4,694 | 4.365 | 4.968 | 1.765 | 2.047 | 2,495.662 | 485.292 |
K-A network | 20 | 20 | 172 | 2,281 | 3.84 | 5.034 | 1.759 | 2.267 | 2,158.983 | 286.927 |
V-A network† | 69 | 51 | 297 | 4,624 | 5.261 | 5.843 | 2.339 | 2.592 | 2,267.808 | 307.597 |
Outliers | ||||||||||
A (E-A, majority K-A) | 1 | 1 | 9 | 99 | — | — | — | — | — | — |
B (K-A, majority E-A) | 1 | 1 | 7 | 88 | — | — | — | — | — | — |
C (K-A, split) | 1 | 1 | 9 | 123 | — | — | — | — | — | — |
D (K-A, majority V-A) | 1 | 1 | 11 | 153 | — | — | — | — | — | — |
E (K-A, majority E-A) | 1 | 0 | 0 | 0 | — | — | — | — | — | — |
F (V-A, majority E-A) | 1 | 0 | 0 | 0 | — | — | — | — | — | — |
G (E-A, majority V-A) | 1 | 0 | 0 | 0 | — | — | — | — | — | — |
Final network groups‡ | ||||||||||
E-A network | 52 | 45 | 362 | 4,694 | 4.365 | 4.968 | 1.764 | 2.042 | 2,490.852 | 482.504 |
K-A network | 23 | 20 | 172 | 2,281 | 3.84 | 5.034 | 1.792 | 2.251 | 2,149.052 | 295.116 |
V-A network | 70 | 51 | 297 | 4,624 | 5.261 | 5.843 | 2.335 | 2.569 | 2,256.347 | 309.418 |
The bold dashes (—) represent values that are protected by federal law due to confidentiality agreements, which protect all data pertaining to less than three aggregated individuals.
Defined as fishers who captained a tuna targeting trip with a NOAA fisheries observer onboard between 2008 and 2012; ∼20% of all tuna trips are observed.
Some fishers in this group also participate in swordfish fishing; swordfish trips are not included in this analysis.
In the final network groups, A was included in the K-A network, B was included in the E-A network, and C and D remained in the K-A network (Table 2).