MPs should be compared when they are tuned to the same level. MPs that are tuned to a higher chance of being in the Kobe Green quadrant result in lower exploitation levels and higher biomass: the boxplots on the left (showing F relative to F_MSY) sink, while the boxplots on the right (showing relative biomass) rise up.

These differences are even more apparent when the same distributions are represented as violin plots.

Use the buttons below to explore the impact of tuning; or jump to the bottom to look at the full set of results.

It is standard in the IOTC to display only 80% the distribution. The violin plots below show the full set of values generated by 500 simulations.

It is apparent from the violin plots below that the model allows F (fishing mortality) to reach 12 times the F_MSY level, at least in a few simulations.

These violin plots also clearly show that shapes of the distributions differ significantly between HCR even as the average values are similar for similar levels of tuning. The Hockey Stick based MPs (pink/purple) seem to offer more control — the corresponding distributions are more concentrated around the middle compared to more spread out values of CPUE-based MPs (blue/green).