LakeTroutGIS {FSAdata}R Documentation

Stock and recruitment data for Lake Trout from Gull Island Shoal, Lake Superior, 1964-1991.

Description

Lake trout (Salvelinus namaycush) stock and recruitment by year at Gull Island Shoal, Lake Superior, 1964-1991.

Format

A data frame of 28 observations on the following 3 variables:

year

Year of data

stock

Mean CPE of adult female Lake Trout per 1000 m of gillnet captured in fall spawning surveys

recruits

Recruits (number of age-0 fish per ha) captured the following fall in bottom trawls

Topic(s)

Source

From Schram, S.T., J.H. Selgeby, C.R. Bronte, and B.L. Swanson. 1995. Population recovery and natural recruitment of Lake Trout at Gull Island Shoal, Lake Superior, 1964-1992. Journal of Great Lakes Research. 21(supp.1):225-232. Obtained from Ransom Myers online database which was (is?) at http://ram.biology.dal.ca/~myers/data.html.

Examples

data(LakeTroutGIS)
str(LakeTroutGIS)
head(LakeTroutGIS)
op <- par(mfrow=c(1,2))
plot(recruits~year,data=LakeTroutGIS,type="l")
plot(recruits~stock,data=LakeTroutGIS)
par(op)


[Package FSAdata version 0.3.7 Index]