Ages (subsample) and lengths (all fish) for male and female Siscowet Lake Trout captured at four locations in Michigan waters of Lake Superior.
A data frame with 780 observations on the following 8 variables.
Little Lake Harbor)
Depth of gillnet panel in which the fish was captured
Gillnet stretch mesh measure
Unique fish identification code
Assigned ages (yrs; from otoliths)
Total length (mm)
Used in the Introductory Fisheries Analyses with R book.
Obtained directly from the U.S. Fish and Wildlife Service via Michael Seider.
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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)
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