Growth data from Smallmouth Bass (Micropterus dolomieu) captured in West Bearskin Lake, MN. Five samples were collected over three years (1988-1990) with two gears (fall -- trapnets, spring -- electrofishing).
A data frame of 445 observations on the following 20 variables:
Species of the fish (SMB for each fish in this file)
Lake fish was captured in (WB for each fish in this file)
Gear used to capture the fish (T=Trapnet and E=Electrofishing)
Year fish was captured (1988, 1989, or 1990)
A unique identifier for each fish
Assigned age-at-capture for the fish (from scales)
Total length-at-capture for the fish (mm)
Magnified scale radius (mm) to the 1st annulus
Magnified scale radius (mm) to the 2nd annulus
Magnified scale radius (mm) to the 3rd annulus
Magnified scale radius (mm) to the 4th annulus
Magnified scale radius (mm) to the 5th annulus
Magnified scale radius (mm) to the 6th annulus
Magnified scale radius (mm) to the 7th annulus
Magnified scale radius (mm) to the 8th annulus
Magnified scale radius (mm) to the 9th annulus
Magnified scale radius (mm) to the 10th annulus
Magnified scale radius (mm) to the 11th annulus
Magnified scale radius (mm) to the 12th annulus
Total scale radius at time of capture
Growth increment analysis
Weisberg linear growth model
Back-Calculation
Used in capHistSum and mrClosed examples. Also see wblake from alr4 for the same dataset with only the agecap, lencap, and radcap variables.