FSAdata: Menhaden1 – R documentation

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Menhaden1

Catch-at-age for Gulf Menhaden, 1964-2004.

Description

Estimated catch-at-age for Gulf Menhaden (Brevoortia patronus), 1964-2004 from thereduction fishery in the U.S. Gulf of Mexico.

Format

A data frame with 41 observations on the following 7 variables.

year: Year of capture.
age0: Estimated catch (millions) of age-0 fish.
age1: Estimated catch (millions) of age-1 fish.
age2: Estimated catch (millions) of age-2 fish.
age3: Estimated catch (millions) of age-3 fish.
age4: Estimated catch (millions) of age-4 fish.
age5: Estimated catch (millions) of age-5 fish.
age6: Estimated catch (millions) of age-6 fish.

Topic(s)

Mortality
Catch curve

Source

From Table 2 in Vaughan, D.S., K.W. Shertzer, and J.W. Smith. 2007. Gulf menhaden (Brevoortia patronus) in the U.S. Gulf of Mexico: Fishery characteristics and biological reference points for management. Fisheries Research 83:263-275.

Examples

data(Menhaden1)
str(Menhaden1)
head(Menhaden1)
ages <- 0:6
# Extract one year, delete year column (the -1), and transpose to be a vector
ct <- t(Menhaden1[Menhaden1$year==1974,-1])
plot(ct~ages,pch=16,type="b",xlab="Age",ylab="Est. Catch (Millions)",main="year==1974")

FSAdata

Data to Support Fish Stock Assessment ('FSA') Package

v0.3.8

GPL (>= 2)

Authors

Derek Ogle [aut, cre] (<https://orcid.org/0000-0002-0370-9299>)

Initial release

2019-05-17