Marine reserve benefits and recreational fishing yields: The winners and the losers

Last modified: 
December 28, 2020 - 6:50pm
Type: Journal Article
Year of publication: 2020
Date published: 12/2020
Authors: Mohsen Kayal, Marine Cigala, Eléonore Cambra, Nelly Soulat, Manon Mercader, Audrey Lebras, Pauline Ivanoff, Léa Sébési, Aurélie Lassus-Debat, Virginie Hartmann, Mélissa Bradtke, Philippe Lenfant, Coraline Jabouin, Julien Dubreuil, Dominique Pelletier, Manon Joguet, Solène Le Mellionnec, Marion Brichet, Jean-Louis Binche, Jérôme Payrot, Gilles Saragoni, Romain Crec’hriou, Marion Verdoit-Jarraya
Journal title: PLOS ONE
Volume: 15
Issue: 12
Pages: e0237685

Marine reserves constitute effective tools for preserving fish stocks and associated human benefits. However, not all reserves perform equally, and predicting the response of marine communities to management actions in the long run is challenging. Our decadal-scale survey of recreational fishing yields at France’s 45-year old Cerbère-Banyuls marine reserve indicated significant protection benefits, with 40–50% higher fishing yields per unit effort in the partial-protection zone of the reserve (where fishing is permitted but at a lower level) than in surrounding non-reserve areas. Over the period 2005–2014, catch per unit effort (CPUE) declined both inside and outside the reserve, while weight per unit effort (WPUE) increased by 131% inside and decreased by 60% outside. Different CPUE and WPUE trajectories among fish families indicated changing catch assemblages, with yields increasing for the family most valued by fisheries, Sparidae (the ecological winners). However, reserve benefits were restricted to off-shore fishermen (the social winners), as on-shore yields were ~4 times lower and declining, even inside the reserve. Our study illustrates how surveys of recreational fishing yields can help evaluate the effectiveness of marine protected areas for key social and ecological protagonists. We show that, more than four decades after its establishment, fishing efficiencies at the historical Cerbère-Banyuls marine reserve are still changing, but benefits in terms of catch abundance, weight, and composition remain predominantly restricted to off-shore fishermen. Further regulations appear necessary to guarantee that conservation strategies equitably benefit societal groups.

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