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  • Title: Holistic investigation of shore angler profiles to support marine protected areas management.
    Author: Cambra E, Bello A, Kayal M, Lenfant P, Vasseur L, Verdoit-Jarraya M.
    Journal: J Environ Manage; 2021 May 01; 285():112089. PubMed ID: 33601262.
    Abstract:
    Marine Recreational Fishing (MRF) is growing worldwide in scientific interest, as evidenced by the increasing number of dedicated publications. Studies on the impacts and benefits to socio-ecosystems and mental health are driving this gradual awareness. In the Mediterranean, MRF is currently responsible for 10% of the catches though, in the context of small-scale fisheries decline, it may become dominant. Sustaining this activity represents a universal challenge for the future of mankind. However, the potential influence of anglers' heterogeneity on both the environment and the Catch Per Unit of Effort (CPUE), used internationally to evaluate fish harvest and as a stocks indicator, hinders MRF management. In addition, little data is available on onshore fishing, while the number of practitioners may increase sharply in the context of a socio-economic crisis, especially in marine protected areas (MPA). We conducted a year-round survey in 2017-2018 in a French Mediterranean MPA subject to tourist flows, during which 144 onshore anglers were polled by semi-directive interviews. We used a typology based on technical and socio-economic data of anglers to describe their behaviour diversity and its influence on CPUE and, more broadly, the marine environment in multi-species fisheries. We characterised four onshore angler profiles, segregated in space and time, including one identified as at risk of causing impacts. Our analyses support using total and per species CPUE independently of profiles to evaluate onshore MRF harvest, except for four species. CPUE seem based on the profiles' skills and self-regulation which induce similar yields between anglers in the absence of control. This demonstrates the importance of taking into account angler behaviour, as each profile could react differently to management actions and highlights that CPUE could be used to detect the effect of changes in regulation in the framework of adaptive management. Our results support that MRF regulations should be simplified and homogenised at the national level and cooperation with fishing shops in MPA co-management should be promoted.
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