Recreationist perceptions of lethal and non-lethal management of sharks in two of South Africa’s marine areas

Abstract

Despite growing public pressure to use non-lethal strategies for managing predators (e.g., sharks) in marine ecosystems, the response of many governments remains largely lethal. This article examined recreationist support and understanding of approaches for managing sharks in two of South Africa’s marine areas. Questionnaires completed by 575 ocean recreationists at beaches near Cape Town and Durban showed they strongly disagreed with lethal management of sharks. The non-lethal Shark Spotters program was the most strongly supported strategy, followed by heat sensor cameras to detect sharks. Other non-lethal strategies (exclusion nets, personal repellent devices, deterrent cables, camouflage wetsuits) were supported by fewer than 50% of respondents, but were still more strongly supported than specific lethal strategies (shark hunts, drumlines, shark nets). Shark Spotters was more strongly supported near Cape Town, whereas the lethal strategies and a few of the other non-lethal approaches (personal electric repellent devices, electric deterrent cables, exclusion nets) were more strongly supported near Durban. Few respondents understood that shark nets and drumlines are designed to catch and kill large sharks. Understanding the function of shark nets correlated negatively with support for their use and positively with support for temporary exclusion nets. Implications of these results were discussed within the framework of a global transition from lethal to non-lethal management.