Catch-at-age for Bull Trout in Trestle Creek, ID.

Catch-at-age (actually carcasses-at-age) for Bull Trout (Salvelinus confluentis) in Trestle Creek, ID.

Format

A data frame with 6 observations on the following 2 variables.

age: A numeric vector of assigned ages (from otoliths).
carcasses: A numeric vector of number of carcasses found in and along Trestle Creek.

Source

From (approximately) Figure 4a in Downs, C.C., D. Horan, E. Morgan-Harris, and R. Jakubowski. 2006. Spawning demographics and juvenile dispersal of an adfluvial bull trout population in Trestle Creek, Idaho. North American Journal of Fisheries Management 26:190-200. CSV file

Topic(s)

Mortality
Catch curve

Examples

data(BullTroutTC)
str(BullTroutTC)
#> 'data.frame':	6 obs. of  2 variables:
#>  $ age      : int  6 7 8 9 10 11
#>  $ carcasses: int  1 3 20 15 4 3
head(BullTroutTC)
#>   age carcasses
#> 1   6         1
#> 2   7         3
#> 3   8        20
#> 4   9        15
#> 5  10         4
#> 6  11         3
plot(log(carcasses)~age,data=BullTroutTC)