surveyIndex: The survey biomass indices for the focal species within the...

In NOAA-EDAB/ms-keyrun: All information for keyrun review

The survey biomass indices for the focal 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 1963 to 2019. All calibration factors have been applied for the change from Albatross IV to Bigelow. Data from the Bigelow era (2009 - 2019) that are not converted are in a separate data set (surveyIndexHB). This data only covers the focal species of the MS Keyrun Project. For an expanded data set see surveyIndexAll.

Usage

surveyIndex

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, surveyIndexAll, surveyIndexHBAll, surveyIndexHB

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