Table 2. Hatchery conditions and practices.
Lilliwaup Hatchery(Duckabush) | McKernan Hatchery(Skokomish) | |
Mean water temperature | 8.9°C | 8.6°C |
Mean density index (ponding to age-1)a | 0.0066 (6.30 × 10−5) | 0.290 (0.185) |
Mean density index (age-1 to age-2)a | 0.0065 (9.03 × 10−6) | 0.056 (0.101) |
Vessel configuration (ponding to age-1) | 10′ circular | 16′ circular |
Vessel configuration (age-1 to age-2) | 20′ circular | 12 × 140′ raceway |
Number of size sorts (ponding to age-1) | 2 | 1 |
Number of size sorts (age-1 to age-2) | 0 | 0 |
Feeding frequency | 3×/d, 4 days/wk | 2–3×/d, 7 days/wk |
Feed Manufacturer | Bio-Oregon | Bio-Oregon |
Fish densities are expressed in lbs/ft3 divided by the average fish length in inches [50] and kg/m3/mm in parentheses.