commercial_div.RdThese data are time series of diversity metrics for commercial fisheries in the Northeast Large Marine Ecosystem, and were drawn from a blend of VTR trip data, CFDBS prices, vessel characteristics from PERMIT databases, and major VTR gear by permit. Here "MA" and "NE" refer to the Mid-Atlantic and New England regions respectively, and are not derived by Ecological Production Unit.
commercial_divThese data contain 156 rows and 5 columns.
Var: Specifies diversity metric or number of fleets, where fleet is defined by vessel length and gear type.
Value: Value of variable Var.
EPU: Specifies region data were drawn from. Either New England ("NE") or Mid-Atlantic ("MA").
Units: Units of variable Var.
Time: Year.
More information, including full variable definitions for diversity metrics, are available at https://noaa-edab.github.io/tech-doc/catch-and-fleet-diversity.html.