WalleyeMN06a: Catch-at-age for Walleye.
In FSAdata: Data to Support Fish Stock Assessment ('FSA') Package

WalleyeMN06a

R Documentation

Catch-at-age for Walleye.

Description

Catch-at-age for Walleye (Sander vitreus) collected from four lakes in Northern Minnesota, USA.

Format

A data frame with 52 observations on the following 3 variables.

lake: A factor vector of collection lake (Crooked, Fourmile, Island, Tom)
age: A numeric vector of assigned ages (from dorsal spines)
number: A numeric vector of number of fish

Topic(s)

Mortality
Catch curve

Source

From various tables in Borkholder, B.D., A.J. Edwards, and C. Olson. 2007. Spring adult and fall juvenile walleye population surveys within the 1854 ceded territory of Minnesota, 2006. Fond du Lac Division of Resource Management, Technical Report 41. CSV file

Examples

data(WalleyeMN06a)
str(WalleyeMN06a)
head(WalleyeMN06a)
op <- par(mfrow=c(2,2),pch=19)
plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Crooked")
plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Fourmile")
plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Island")
plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Tom")
par(op)

FSAdata documentation built on Aug. 24, 2023, 5:06 p.m.