mass_inshore_survey.RdData include aggregated time series of inshore fishery-independent trawl survey data from Massachusetts waters. MA inshore surveys have been performed biannually in the spring and fall since 1978.
mass_inshore_survey880 rows and 5 columns
Var: Specifies variable type, including SOE species groupings and sampling season with stratified mean biomass per tow
Value: Value of variable Var.
Time: Year.
Units: Units of variable Var.
EPU: Ecological Production Unit. These data reflect inshore sampling in MA state waters.
Technical details related to the MA inshore survey are available at https://www.mass.gov/files/documents/2016/08/tm/tr-38.pdf.