tanaka data frame has 138 rows and 3 columns.
The number of returns and the mean times-at-large from Table 2 of
Tanaka (2006) were used to generate individual times-at-large data from a random normal distributions
using a CV of 0.1.
This data frame contains the following columns:
release year (cohort)
individual times-at-large (in years)
Total number of releases for relear year (cohort)
Tanaka, E. 2006. Simultaneous estimation of instantaneous mortality coefficients and rate of effective survivors to number of released fish using multiple sets of tagging experiments. Fisheries Science 72: 710-718.