Stock and recruitment data for Norwegian cod, 1937-1960.

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Description

Norwegian cod (Gadus morhua) stock and recruitment by year, 1937-1960.

Format

A data frame of 24 observations on the following 3 variables:

year

Year of data

recruits

Recruits – year-class strength index

stock

Spawning stock index

Topic(s)

  • Stock-Recruit

  • Recruitment

Source

From Garrod, D.J. 1967. Population dynamics of the Arcto-Norwegian cod. Journal of the Fisheries Research Board of Canada, 24:145-190.

Examples

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

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