Table 7 Cox proportional hazards models examining fish survival for fish tagged in situ (n = 70) at both 4 and 6 days after tagging
From: Under pressure: comparing in situ and boat tagging methods using time-to-event analyses
| Days after tagging | Hazards model | AICc | ΔAICc | χ2 | df | p |
|---|---|---|---|---|---|---|
| 4 | Month | 40.38 | 0.00 | 3.26 | 1 | 0.07 |
| Fish size + month | 41.49 | 1.11 | 4.51 | 2 | 0.10 | |
| Handling time | 41.65 | 1.27 | 2.34 | 1 | 0.10 | |
| Depth + month | 41.99 | 1.61 | 3.96 | 2 | 0.10 | |
| Null | 42.19 | 1.81 | ||||
| Handling time + fish size | 42.30 | 1.92 | 3.78 | 2 | 0.20 | |
| Handling time + family | 42.74 | 2.36 | 3.25 | 2 | 0.20 | |
| Fish size + family + month | 43.24 | 2.86 | 5.05 | 3 | 0.20 | |
| Depth + family + month | 43.76 | 3.38 | 4.46 | 3 | 0.20 | |
| Handling time + fish size + family | 43.79 | 3.41 | 4.45 | 3 | 0.20 | |
| Handling time + depth + family | 44.77 | 4.39 | 3.41 | 3 | 0.30 | |
| Tagging time + fish size + family + month | 45.21 | 4.83 | 5.09 | 4 | 0.30 | |
| Handling time + fish size + surgery count + family | 45.57 | 5.19 | 4.52 | 4 | 0.30 | |
| Tagging time + depth + family + month | 45.92 | 5.54 | 4.49 | 4 | 0.30 | |
| Handling time + depth + surgery count + family | 46.97 | 6.59 | 3.44 | 4 | 0.50 | |
| Tagging time + fish size + surgery count + family + month | 47.53 | 7.15 | 5.11 | 5 | 0.40 | |
| 6 | Fish size + month | 57.43 | 0.00 | 5.69 | 2 | 0.06 |
| Fish size | 57.84 | 0.41 | 3.17 | 1 | 0.08 | |
| Handling time + fish size + surgery count | 57.87 | 0.44 | 5.41 | 3 | 0.10 | |
| Fish size + surgery count | 58.37 | 0.94 | 4.45 | 2 | 0.10 | |
| Month | 58.70 | 1.27 | 2.03 | 1 | 0.20 | |
| Null | 58.86 | 1.43 | ||||
| Fish size + surgery count + month | 58.90 | 1.47 | 6.48 | 3 | 0.09 | |
| Depth + month | 59.52 | 2.09 | 3.5 | 2 | 0.20 | |
| Handling time + fish size + surgery count + family | 59.54 | 2.11 | 5.67 | 4 | 0.20 | |
| Surgery count | 60.17 | 2.74 | 1.15 | 1 | 0.30 | |
| Depth + surgery count | 60.92 | 3.49 | 1.72 | 2 | 0.40 | |
| Fish size + surgery count + family + month | 60.95 | 3.52 | 6.68 | 4 | 0.20 | |
| Depth + surgery count + month | 61.02 | 3.59 | 3.94 | 3 | 0.30 | |
| Handling time + depth + surgery count | 62.10 | 4.67 | 2.32 | 3 | 0.50 | |
| Tagging time + depth + surgery count + month | 62.88 | 5.45 | 4.62 | 4 | 0.30 | |
| Tagging time + fish size + surgery count + family + month | 63.19 | 5.76 | 7.5 | 5 | 0.20 | |
| Handling time + depth + surgery count + family | 64.08 | 6.65 | 2.64 | 4 | 0.60 | |
| Tagging time + depth + surgery count + family + month | 64.97 | 7.54 | 4.87 | 5 | 0.40 |