A KALMAN FILTER APPROACH TO CATCH-AT-LENGTH ANALYSIS

被引:76
作者
SULLIVAN, PJ
机构
关键词
CATCH-AT-AGE ANALYSIS; CATCH-AT-LENGTH ANALYSIS; FISHERIES; KALMAN FILTER; MAXIMUM LIKELIHOOD ESTIMATION;
D O I
10.2307/2532752
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
A state-space representation of a length-structured population under commercial harvest is described and a Kalman filter is used to develop the conditional likelihood equation needed for estimating the underlying system parameters. The state of the system is characterized using conventional fisheries theory with commercial harvest representing the observations taken on the population. The conditional likelihood framework embedded in the Kalman filter facilitates the incorporation of both system stochasticity as well as observation error in the development of the overall likelihood equation. Within this framework a maximum likelihood approach is used to estimate population parameters while taking into account both sources of error.
引用
收藏
页码:237 / 257
页数:21
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