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Potential impacts of alternative regulatory interventions on the recreational value of angling on the Breede River estuary, South Africa

This study investigated the support for, and potential impacts of, alternative management measures to address declining fish stocks in the Breede River estuary. A survey of residents and visitors was carried out during 2011–2012. Angling was the most important attraction of the estuary, and accounted for at least R 25 million in annual expenditure in the area. The majority of recreational anglers were concerned about the status of fish stocks and felt that additional regulations were necessary. There was greatest support for banning the trolling of artificial lures, and majority support for a closed area and an upper size limit for one of the main species targeted – the dusky kob Argyrosomus japonicus. The options of a night ban on fishing and a closed season received little support. Ratings of alternative scenarios suggested that anglers were more sensitive to fish abundance than to regulations. Modelled results showed that regulations resulting in increased abundance of fish, and large A. japonicus in particular, would have a positive impact on angling value of the estuary, whereas further declines in fish stocks would result in a decrease in expenditure in the area.