Table 4. Values of variables and parameters used to simulate blue crab stock and landings for forecast scenarios. Variable or parameter Value (units) Standard deviation Year 2005–2050 Initial stock 54,640 (tons) Instantaneous annual rate of fishing mortality, F 0.692 r† for baseline scenario −0.0083 0.176 r for 20% loss of shoreline aquatic vegetation bay-wide scenario −0.019 0.176 r for 20% loss of shoreline aquatic vegetation, 1 cell scenario −0.012 0.176 r for 10% hardened shoreline scenario −0.045 0.176 †r = rate of population change.