FSAdata: SiscowetMI2004 – R documentation

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SiscowetMI2004

Ages (subsample) and lengths (all fish) for male and female Siscowet Lake Trout captured at four locations in Michigan waters of Lake Superior.

Description

Ages (subsample) and lengths (all fish) for male and female Siscowet Lake Trout captured at four locations in Michigan waters of Lake Superior.

Format

A data frame with 780 observations on the following 8 variables.

locID: Locations (Blind Sucker,Deer Park,Grand Marais,Little Lake Harbor)
pnldep: Depth of gillnet panel in which the fish was captured
mesh: Gillnet stretch mesh measure
fishID: Unique fish identification code
sex: Sex (F and M)
age: Assigned ages (yrs; from otoliths)
len: Total length (mm)
wgt: Weight (g)

Topic(s)

Age-Length Key
Growth

Note

Used in the Introductory Fisheries Analyses with R book.

Source

Obtained directly from the U.S. Fish and Wildlife Service via Michael Seider.

Examples

data(SiscowetMI2004)
str(SiscowetMI2004)
head(SiscowetMI2004)
xtabs(~age+locID,data=SiscowetMI2004)
op <- par(mfrow=c(2,2),pch=19)
plot(len~age,data=SiscowetMI2004,subset=locID=="Blind Sucker",main="Blind Sucker")
plot(len~age,data=SiscowetMI2004,subset=locID=="Grand Marais",main="Grand Marais")
plot(len~age,data=SiscowetMI2004,subset=locID=="Little Lake Harbor",main="Little Lake Harbor")
par(op)

FSAdata

Data to Support Fish Stock Assessment ('FSA') Package

v0.3.8

GPL (>= 2)

Authors

Derek Ogle [aut, cre] (<https://orcid.org/0000-0002-0370-9299>)

Initial release

2019-05-17