| WalleyeRL {FSAdata} | R Documentation |
Growth increment data for Red Lakes Walleye.
Description
Growth increment data for Red Lakes Walleye (Sander vitreus) in one-fish-per-line format.
Format
A data frame with 1543 observations on the following 13 variables.
- fish
A fish identification number. Unique within a year but not across years.
- yearcap
Year the fish was captured.
- ce
A factor denoting capture gear (
C=commercial andE=experimental nets).- agecap
Age of fish at capture.
- lencap
Length of fish at capture.
- inc1
Scale measurement to first annulus.
- inc2
Scale measurement between first and second annulus.
- inc3
Scale measurement between second and third annulus.
- inc4
Scale measurement between third and fourth annulus.
- inc5
Scale measurement between fourth and fifth annulus.
- inc6
Scale measurement between fifth and sixth annulus.
- inc7
Scale measurement between sixth and seventh annulus.
- radcap
Scale radius at time of capture
Topic(s)
Growth increment analysis
Weisberg linear growth model
Note
Data is in one-fish-per-line format.
Source
Cyterski, M.J. and G.R. Spangler. 1996. A tool for age determination. North American Journal of Fisheries Management 16:403-412. CSV file
Examples
data(WalleyeRL)
str(WalleyeRL)
head(WalleyeRL)