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Capture years and ages for Lake Sturgeon from Goulais Bay, Lake Superior, Ont.

Source: R/SturgeonGB.R
SturgeonGB.Rd

Pratt et al. (2014) recorded the capture years and ages for Lake Sturgeon captured in multiple gillnet sets in Goulais Bay, Lake Superior (Ontario) in July 2010-2012.

Format

A data frame with 436 observations on the following 2 variables.

year

Year of capture

age

Age (yrs; from pectoral fin ray)

Source

From Pratt, T.C., Gardner, W.M., Pearce, J., Greenwood, S., and Chong, S.C. 2014. Identification of a robust Lake Sturgeon (Acipenser fulvescens Rafinesque, 1917) population in Goulais Bay, Lake Superior. Journal of Applied Ichthyology 30:1328-1334. Obtained directly from Tom Pratt. CSV file

Note

Used in the Introductory Fisheries Analyses with R book.

Topic(s)

  • Year-class Strength

Examples

data(SturgeonGB)
str(SturgeonGB)
#> 'data.frame':	436 obs. of  2 variables:
#>  $ year: int  2010 2010 2010 2010 2010 2010 2010 2010 2010 2010 ...
#>  $ age : int  3 3 3 3 3 3 3 3 3 3 ...
head(SturgeonGB)
#>   year age
#> 1 2010   3
#> 2 2010   3
#> 3 2010   3
#> 4 2010   3
#> 5 2010   3
#> 6 2010   3
plot(age~year,data=SturgeonGB)