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Table 3 Regional and total survival estimates for alternative predator filtering approaches for 2016 San Joaquin River Chinook salmon data processed using no filter, simple or complex rule-based (RB) filter, and smolt-only or multispecies pattern-recognition (PR) filter

From: Diagnosing predated tags in telemetry survival studies of migratory fishes in river systems

Survival region No filter Simple RB Complex RB Smolt-only PR Multispecies PR CV (%)
Durham Ferry to Turner Cut Junction (A0–A20/T1) 0.044 (0.009) 0.040 (0.008) 0.044 (0.009) 0.036 (0.008) 0.036 (0.008) 10.0
Durham Ferry to Mossdale (A0–A6) 0.643 (0.019) 0.642 (0.019) 0.642 (0.019) 0.643 (0.019) 0.644 (0.019) 0.1
Mossdale to Turner Cut Junction (A6–A20/T1) 0.061 (0.012) 0.055 (0.011) 0.060 (0.012) 0.049 (0.011) 0.049 (0.011) 10.5
Mossdale through head of Old River (A6–A8/B1) 0.665 (0.023) 0.671 (0.023) 0.659 (0.023) 0.673 (0.023) 0.661 (0.023) 0.9
Head of Old River to Weston Ranch (A8–A14) 0.313 (0.030) 0.311 (0.029) 0.318 (0.030) 0.253 (0.028) 0.234 (0.027) 13.7
Weston Ranch to Calaveras River (A14–A18) 0.665 (0.054) 0.637 (0.055) 0.650 (0.054) 0.638 (0.061) 0.687 (0.062) 3.2
Calaveras River to Turner Cut Junction (A18–A20/T1) 0.498 (0.071) 0.470 (0.071) 0.501 (0.071) 0.510 (0.081) 0.523 (0.082) 3.9
  1. A0: release site. Standard errors are in parentheses. Telemetry stations are identified in Fig. 1 and Table 1. CV: coefficient of variation