
%0 Journal Article
%A Lucas, C 
%T A method for estimating mortality rates from tag recoveries when fishing is not constant
%J Marine and Freshwater Research
%D 1975/03/01
%V 26
%N 1
%P 75-79
%K 
%R https://doi.org/10.1071/MF9750075
%U https://www.publish.csiro.au/paper/MF9750075 
%X Maximum likelihood estimates for rate of survival and the rate of exploitation from tag recoveries when fishing is not constant are represented. A numerical technique for maximizing the likelihood function is presented. In it, trial values of the death rate parameters are selected until a maximum, if one exists, is located. The variances of the estimates are obtained using the information matrix. 
