Table 2 Criteria and equations used to calculate the conservation prioritization score, Wt, for each species of Sebastidae and for each taxa of structural corals.
Taxonomic group | Criteria | Proxy variable | Score |
|---|---|---|---|
Sebastidae (rockfish and thornyheads) | Vulnerability | Intrinsic population growth rate, r | \(Score_{1} = x_{1} \left( {\frac{\frac{1}{r}}{{max\left( \frac{1}{r} \right)}}} \right),\) where \(x_{1} = 4\) |
Depletion level | By/B0 (median estimate of spawning biomass during year y, divided by the “unfished” biomass) | \({Score}_{2}={x}_{2}\left(\frac{1-\left(\frac{{B}_{y}}{{B}_{0}}\right)}{max\left(1-\left(\frac{{B}_{y}}{{B}_{0}}\right)\right)}\right),\) where \({x}_{2}=4\) | |
Ecological role | Trophic Level, TL | \({Score}_{3}={x}_{3}\left(\frac{TL-\mathrm{min}(TL)}{\mathrm{max}(TL)-\mathrm{min}(TL)}\right),\) where \({x}_{3}=2\). A min–max normalization is used to highlight differences between planktivores and upper-level predators within the relatively narrow range of TL values for Sebastidae | |
Evolutionary distinctiveness, ED | None (direct measure14) | \({Score}_{4}={x}_{4}\left(\frac{ED}{\mathrm{max}(ED)}\right),\) where \({x}_{4}=2\) | |
Overall species score, Wt | \({W}_{t}=\frac{\sum_{i=1}^{4}{Score}_{i}}{\sum_{i=1}^{4}{x}_{i}}\) Where \({x}_{i}=0\) if \({Score}_{i}\) cannot be calculated for that species (i.e., missing data for proxy variable) | ||
Structural corals | Overall species score, Wt | Mean height, h (cm) | \({W}_{t}=\frac{h}{\mathrm{max}(h)}\) |
