Abstract
This chapter explains some theoretical and technical aspects of stock assessments that may be familiar to those directly involved in fisheries science and analysis of fish populations. The information about stock and recruitment concepts, assessment of population growth, natural and fishing moralities, selectivity of fishing gears and relationship between catch and selectivity. It is written particularly for persons involved in scientific activity, for students and for stakeholders who have never been exposed to formal fisheries science training, but are interested in better understanding complicated fisheries concepts. An enhanced knowledge of assessment concepts and fisheries science will promote an increased understanding of fisheries management and give stakeholders greater confidence as they participate in fisheries management process. Understanding how all factors interact is a challenging task, even for experts in fisheries science.
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