Estimation of total catch of silver kob Argyrosomus inodorus by recreational shore-anglers in Namibia using a roving-roving creel survey

A statistical sampling method is described to estimate the annual catch of silver kob Agryrosomus indorus by recreational shore-anglers in Namibia. Th e method is based on the theory of progressive counts and on-site roving in terviews of anglers, with catch counts and measurements at interception, us ing data taken during a survey from 1 October 1995 to 30 September 1996. Tw o different methods of estimating daily catch were tested by sampling the s ame population of anglers using a complete and an incomplete survey. The me an rate estimator, calculated by the ratio of the means with progressive an gler counts and averaged fishing times, provides the best estimate of daily catch.