surveyIndexAll: The survey biomass indices for all species within the...

surveyIndexAllR Documentation

The survey biomass indices for all species within the mskeyrun project

Description

Survey data comes from Northeast Fisheries Science Center's Bottom Trawl Survey. Indices are calculated using the Survdat R package. This data set covers the entire bottom trawl survey from 1968 to 2019. All appropriate calibration factors have been applied for changes in gear/vessels over the years. Data from the Bigelow era (>2008) that are not converted are in a separate data set (surveyIndexHBAll). This data covers all species caught on the survey. For the data set containing only the focal species see surveyIndex.

Usage

surveyIndexAll

Format

A data frame

See Also

Other surveyIndex

YEAR

year survey conducted

SVSPP

Survey Species Code see focalSpecies

SEASON

Season the survey was conducted

variable

stratified biomass or abundance (strat.biomass/strat.abund), variance (biomass.var/abund.var), or standard error (biomass.SE/abund.SE)

value

value of the variable

units

units of the variable

: surveyIndexA4All, surveyIndexA4, surveyIndexHBAll, surveyIndexHB, surveyIndex


NOAA-EDAB/ms-keyrun documentation built on April 20, 2024, 10:07 a.m.