WShrimpGA: Stock and recruitment data for White Shrimp off the coast of...
In FSAdata: Data to Support Fish Stock Assessment ('FSA') Package

WShrimpGA

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)

Stock-Recruit
Recruitment

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. CSV file

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)

FSAdata documentation built on Aug. 24, 2023, 5:06 p.m.