Hedonic evaluation of coral reef fish prices on a direct sale market

Nassiri, A.; Thébaud, Olivier; Holbrook, Sally J.; Lauer, Matthew; Rassweiler, Andrew; Schmitt, Russell J.; Claudet, Joachim

doi:10.1016/j.marpol.2021.104525

Cited by 13 publications

(10 citation statements)

References 35 publications

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“…Furthermore, reefs that have become dominated by macroalgae have subsequently experienced shifts in the taxonomic composition and size structure of the herbivore assemblage (Munsterman et al 2021). While this study consolidates the impact of different herbivores and models a generic "parrotfish" species, different herbivores such as parrotfish and unicornfish are valued differently by fishers (Rassweiler et al 2020;Nassiri et al 2021) and different herbivore functional groups have distinct ecological effects on macroalgae (Green and Bellwood 2009;Han et al 2016;Munsterman et al 2021). For example, herbivores such as parrotfishes (Scaridae) that graze, scrape, or excavate thin epilithic algae can prevent the proliferation of macroalgae on disturbed reefs via consumption of early life stages; by contrast, only browsing herbivores such as Naso and Siganus can remove macroalgae once they have become established (Green and Bellwood 2009;Han et al 2016;Puk et al 2020;Burkepile et al 2020).…”

Section: Discussionmentioning

confidence: 90%

How do fisher responses to macroalgal overgrowth influence the resilience of coral reefs?

Rassweiler

Miller

Holbrook

et al. 2021

Limnology & Oceanography

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Many coral reefs have shifted from coral-to macroalgae-dominated community states, heightening the need to understand resilience of coral communities. Fishing on herbivores often reduces resilience of the coral state, as lower herbivory fosters macroalgal establishment. Despite the acknowledged importance of fishing, relatively little attention has been paid to how fishers change their behavior as macroalgae overgrow reefs, or how the resulting dynamic feedbacks might affect resilience. We address these questions in Moorea, French Polynesia, where local fishers target herbivorous fishes and where shifts to algal dominance have occurred on some lagoon reefs. We quantified fisher preferences for reef habitats where they target various taxa. For the two most ecologically important taxa of herbivores targeted in the fishery, parrotfish (Scaridae) and unicornfish (Naso), fishers preferred to harvest from locations with less macroalgae. We incorporated these habitat preferences into a spatially explicit socialecological model of reef dynamics to explore consequences of changes in fishing behavior for resilience of the coral state, particularly following disturbance. Fishing that targets low-macroalgae locations typically generates resilience by facilitating local recovery of herbivores and thus of coral in the less-targeted macroalgae-dominated patches. However, the resulting movement of fishers across the seascape can sometimes create fragility; if coral loss is widespread, avoidance of macroalgae concentrates fishing in patches having the highest coral cover, resulting in loss of coral via reduced herbivory. Our results emphasize that resilience and coral-macroalgae regime shifts cannot be understood without considering humans as a dynamic part of the system.

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Section: Discussionmentioning

confidence: 90%

How do fisher responses to macroalgal overgrowth influence the resilience of coral reefs?

Rassweiler

Miller

Holbrook

et al. 2021

Limnology & Oceanography

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“…Contrasts between ecological outcomes in the protected and unprotected areas can be used to isolate the cascading effects of fishing. Protected areas in Moorea are not as well enforced, limiting their utility for hypothesis testing, but the diverse fish community includes ecologically similar species, which are valued very differently by fishers (Nassiri et al, 2021 ). Comparing population trends in targeted and unfished taxa can help reveal the effects of the anthropause in this context.…”

Section: Effects Of the Anthropause On Ecosystemsmentioning

confidence: 99%

Long‐term ecological research and the COVID‐19 anthropause: A window to understanding social–ecological disturbance

et al. 2022

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The period of disrupted human activity caused by the COVID-19 pandemic, coined the "anthropause," altered the nature of interactions between humans and ecosystems. It is uncertain how the anthropause has changed ecosystem states, functions, and feedback to human systems through shifts in ecosystem services. Here, we used an existing disturbance framework to propose new investigation pathways for coordinated studies of distributed, long-term socialecological research to capture effects of the anthropause. Although it is still too early to comprehensively evaluate effects due to pandemic-related delays in data availability and ecological response lags, we detail three case studies

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“…A large proportion of landings from the reef fishery is selfconsumed 2 , the rest being sold in the so-called "tui" 3 [61] to contribute to cash earnings of households. The weight of a tui is about 3 kg and is sold around 1500 XPF 4 .…”

Section: The Moorea Island Small-scale Fisherymentioning

confidence: 99%

Stochastic Multi-species MSY to Achieve Ecological-Economic Sustainability of a Coral Reef Fishery System in French Polynesia

Lagarde

Doyen

Claudet

et al. 2022

Environ Model Assess

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This paper investigates the ecological-economic sustainability of coral reef socio-ecological systems under fishing and environmental pressures. To achieve this, a dynamic, spatially explicit, multi-species, multi-fleet fisheries model is developed. Stochastic environmental shocks are assumed to alter coral cover and consequently the entire coral reef social-ecological system. The model is calibrated using ecological, socio-economic and environmental data in French Polynesia. Four exploratory fishing strategies and a goal-seeking strategy entitled Stochastic Multi-Species Maximum Sustainable Yield (SMMSY) are compared in terms of ecological-economic outcomes and sustainability of the socio-ecological system. The SMMSY turns out to promote ecological-economic sustainability. It is characterised by a global increase in fishing effort pointing to the relative current under-exploitation of the fishery. SMMSY balances the trophic level of catches after natural shocks and sustains the fundamental herbivore grazing process. SMMSY strategies are also more diversified in terms of temporality, gears, spatial distribution of fishing and target species.

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Hedonic evaluation of coral reef fish prices on a direct sale market

Cited by 13 publications

References 35 publications

How do fisher responses to macroalgal overgrowth influence the resilience of coral reefs?

How do fisher responses to macroalgal overgrowth influence the resilience of coral reefs?

Long‐term ecological research and the COVID‐19 anthropause: A window to understanding social–ecological disturbance

Stochastic Multi-species MSY to Achieve Ecological-Economic Sustainability of a Coral Reef Fishery System in French Polynesia

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