tidy-tuesday

Repository for lab hacky hours

2025-08-26

Visualizing flounder MSE metrics

Visualize results of the summer flounder MSE using a common results data frame, in data/MSE_median_metrics.rds.

Data Dictionary

Variable	Type	Description
om	NA	not used
RegType	character	Description of which regulations were allowed to change during the simulation. One of: “Bag” - bag limit “Length” - minimum size limit “Season” - season length “All” - all three of the above
mp	character	Management Procedure. One of four candidate MPs: “BBM” - biomass-based matrix “BRP” - biological reference point “NCA” - no change approach “PCA” - percent change approach
metric	character	Name of performance metric or regulation. One of 22 values: “bag” - bag limit (number of fish) “change_cs” - overall change in consumer surplus “cs_per_trip” - consumer surplus per trip “exp_keep” - expected number of fish kept “expense” - total recreational fishing costs “keep_one” - probability of a trip with at least one keeper “keep_to_exp” - number of kept fish compared to expected “kept per trip” - number of kept fish per trip “kept:released” - ratio of number of kept fish to numbers released “minlen” - minimum size limit (inches) “mulen_keep” - mean length of kept fish “mulen_release” - mean length of released fish “not overfished” - probability that the stock is not overfished (i.e P(SSB>0.5 BMSY) ) “not overfishing” - probability that overfishing is not occurring (i.e. P(F < FMSY) ) “ntrips” - total number of recreational fishing trips “prop_female” - proportion of the stock that are female fish “rec_removals” - total recreational removals (number of fish) “rel per trip” - number of fish released per trip “seaslen” - season length (days) “spawning biomass” - magnitude of spawning stock biomass “total catch” - total catch (from both commercial and recreational) “trophy” - probability that a trip includes a large ‘trophy size’ fish.
value	numeric (real number)	Median (over simulations) value for the performance metric
StartBBMSY	numeric (real number)	Value for the scenario stock status relative to BMSY at the start of the projection period in the simulations. One of three values: 1.0 - (base case, stock starts the simulations around B/BMSY) 2.0 - (stock starts above BMSY) 0.3 - (stock starts close to the overfished limit)