Calculates the fishing mortality for each species in each size class using a logistic selectivity curve.
calc_F(nSize, nSpecies, mBound, lBound, Ffull, Falpha, FL50, scLinf,
scLinfMat, phiMin, parameterValues)Number of size class intervals species can grow through
Number of species in the model
Vector. Mid point of each size class interval
Vector. Lower bound of each size class interval
Scalar. Fishing mortaliy rate for a fully recruited fish
Scalar. Number of years to simulate.
Scalar. The length at which 50 % selection by the fishery occurs.
Vector. The size class at which each species reaches L_inf (maximum length)
Binary matrix indicating which size classes each species occupies
Scalar. Model time step (years). See calc_phi
Matrix (nSize x nSpecies). See rochet_GB_parameterValues
A matrix is returned
A matrix (size nSize x nSpecies) of F (fishing mortality) values. Note: F = 0 for size classes in which species do not grow (based on von Bertalanfy growth curve)
Hall et al. (2006). A length-based multispecies model for evaluating community responses to fishing. Can. J. Fish. Aquat. Sci. 63:1344-1359.
Rochet et al. (2011). Does selective fishing conserve community biodiversity? Prediction from a length-based multispecies model. Can. J. Fish. Aquat. Sci. 68:469-486