SlotLim - Catch Advice for Data-Limited Vertebrate and Invertebrate Fisheries Managed by Harvest Slot Limits

Catch advice for data-limited vertebrate and invertebrate fisheries managed by harvest slot limits using the 'SlotLim' harvest control rule. The package accompanies the manuscript 'SlotLim: catch advice for data-limited vertebrate and invertebrate fisheries managed by harvest slot limits' (Pritchard et al., in prep). Minimum data requirements: at least two consecutive years of catch data, length–frequency distributions, and biomass or abundance indices (all from fishery-dependent sources); species-specific growth rate parameters (either von Bertalanffy, Gompertz, or Schnute); and either the natural mortality rate ('M') or the maximum observed age ('tmax'), from which M is estimated. The following functions have optional plotting capabilities that require 'ggplot2' installed: 'prop_target', 'TBA', 'SAM', 'catch_advice', 'catch_adjust', and 'slotlim_once'.