Hazard function models to estimate mortality rates affecting fish populations with application to the sea mullet (Mugil cephalus) fishery on the Queensland coast (Australia)
نویسنده
چکیده
Survival analysis was applied to fisheries catch at age data to develop maximum likelihood estimators for stock assessment. This new method estimated natural mortality, fishing mortality and catchability from typical catch at age matrices. Monte Carlo simulations suggested estimates were unbiased and provided a better fit than the traditional multinomial approach. Application to a dataset from Queensland’s sea mullet fishery (Australia) estimated natural mortality to be equal to 0.319 ± 0.165 year.
منابع مشابه
First Report of a Toxic Nodularia spumigena (Nostocales/ Cyanobacteria) Bloom in Sub-Tropical Australia. II. Bioaccumulation of Nodularin in Isolated Populations of Mullet (Mugilidae)
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