bonito {fishmethods}

Data from an age and growth study of the pacific bonito.

Description

Growth increment data derived from tagging experiments on Pacific bonito (Sarda chiliensis) used to illustrate Francis's maximum likelihood method estimation of growth and growth variability (1988).

Usage

bonito

Format

A data frame with 138 observations on the following 4 variables.

T1

a numeric vector describing the release date

T2

a numeric vector describing the recovery date

L1

a numeric vector describing the length at release in cenitmeters

L2

a numeric vector describing the length at recapture in centimeters

Details

Note that Francis (1988) has discarded several records from the original dataset collected by Campbell et al. (1975).

Source

1

Francis, R.I.C.C., 1988. Maximum likelihood estimation of growth and growth variability from tagging data. New Zealand Journal of Marine and Freshwater Research, 22, p.42–51.

2

Campbell, G. & Collins, R., 1975. The age and growth of the Pacific bonito, Sarda chiliensis, in the eastern north Pacific. Calif. Dept. Fish Game, 61(4), p.181-200.