The survey biomass indices for the focal species within the mskeyrun project from the Albatross IV era
Source:R/SurveyIndexA4.r
surveyIndexA4.RdSurvey data comes from Northeast Fisheries Science Center's Bottom Trawl
Survey. Indices are calculated using the Survdat R package. This data
set covers the Albatross IV era of the bottom trawl survey from 1968 to 2008.
All appropriate calibration factors have been applied for changes in gear/vessels
over the years. Data from the Bigelow era (>2008) 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 surveyIndexA4All.
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,
surveyIndexAll,
surveyIndexHBAll,
surveyIndexHB,
surveyIndex