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)

• Stock-Recruit
• Recruitment

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)