WShrimpGA {FSAdata}R Documentation

Stock and recruitment data for White Shrimp off the coast of Georgia (USA), 1979-2000.

Description

White Shrimp (Litopenaeus setiferus) stock and recruitment data from off the coast of Georgia (USA), 1979-2000.

Format

A data frame with 22 observations on the following 3 variables:

year

Year of data

stock

Spawning stock index – CPUE in June assessment surveys

recruits

Recuit index – commercial landings in pounds from Aug-Jan

yrconf

A code of confidence for whether or not the stock value is known to come from the year shown (see the note)

Topic(s)

Note

No graph was shown for stock values vs. year so some stock values had to be haphazardly paired with recruit values – especially for stock values between 2.5 and 3.0.

Source

From (approximately) Figures 2 and 3 of Belcher, C.N., and C.A. Jennings. 2004. Evaluation of stock-recruitment curves for white shrimp in Georgia. North American Journal of Fisheries Management. 24:654-661.

Examples

data(WShrimpGA)
str(WShrimpGA)
head(WShrimpGA)
op <- par(mfrow=c(1,2),pch=19)
plot(recruits~year,data=WShrimpGA,type="b")
plot(recruits~stock,data=WShrimpGA)
par(op)


[Package FSAdata version 0.3.7 Index]