SMBassWB: Growth increment data for West Bearskin Lake, MN, Smallmouth Bass.

Description

Growth data from Smallmouth Bass (Micropterus dolomieu) captured in West Bearksin Lake, MN. Five samples were collected over three years (1988-1990) with two gears (fall -- trapnets, spring -- electrofishing).

Arguments

Format

A data frame of 445 observations on the following 20 variables:

species: Species of the fish (SMB for each fish in this file)
lake: Lake fish was captured in (WB for each fish in this file)
gear: Gear used to capture the fish (T=Trapnet and E=Electrofishing)
yearcap: Year fish was captured (1988, 1989, or 1990)
fish: A unique identifier for each fish
agecap: Assigned age-at-capture for the fish (from scales)
lencap: Total length-at-capture for the fish (mm)
anu1: Magnified scale radius (mm) to the 1st annulus
anu2: Magnified scale radius (mm) to the 2nd annulus
anu3: Magnified scale radius (mm) to the 3rd annulus
anu4: Magnified scale radius (mm) to the 4th annulus
anu5: Magnified scale radius (mm) to the 5th annulus
anu6: Magnified scale radius (mm) to the 6th annulus
anu7: Magnified scale radius (mm) to the 7th annulus
anu8: Magnified scale radius (mm) to the 8th annulus
anu9: Magnified scale radius (mm) to the 9th annulus
anu10: Magnified scale radius (mm) to the 10th annulus
anu11: Magnified scale radius (mm) to the 11th annulus
anu12: Magnified scale radius (mm) to the 12th annulus
radcap: Total scale radius at time of capture

Source

Data from the linear growth modelling software distributed in support of Weisberg, S. 1993. Using hard-part increment data to estimate age and environmental effects. Canadian Journal of Fisheries and Aquatic Sciences 50:1229-1237.

Topic(s)

Growth increment analysis
Weisberg linear growth model
Back-Calculation

Examples

Run this code

data(SMBassWB)
str(SMBassWB)
head(SMBassWB)