nshrimp: Data for Gulf of Maine northern shrimp
Description
Recruit and postrecruit survey indices and catch data for Gulf of Maine northern shrimp (Pandulus borealis), 1985-2007Format
A data frame with 23 observations on the following 4 variables.
year
- a numeric vector describing the year
r
- a numeric vector of the recruit index
n
- a numeric vector of the postrecruit index
C
- a numeric vector of the landings (in numbers)