Micronutrient supply from global marine fisheries under climate change and overfishing

Maire, Eva; Graham, Nicholas A. J.; MacNeil, M. Aaron; Lam, Vicky W. Y.; Robinson, James P. W.; Cheung, William W. L.; Hicks, Christina C.

doi:10.1016/j.cub.2021.06.067

Cited by 46 publications

(32 citation statements)

References 40 publications

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“…Seafood is a sector in which consumers have more skepticism and concern about the product, due to concerns such as food fraud [ 51 ], the impact of marine environment pollution on product safety [ 52 ] and environmental damage from harvesting practices [ 53 ]. This awareness and concern may lead consumers to have a lower price elasticity in favor of locally produced goods.…”

Section: Resultsmentioning

confidence: 99%

Is Buying Local Less Expensive? Debunking a Myth—Assessing the Price Competitiveness of Local Food Products in Canada

Charlebois

Hill

Morrison

et al. 2022

Foods

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It is well known that many consumers believe local foods are more expensive than comparative products coming from other markets. The aim of this study was to measure the price competitiveness of products certified by the Aliments du Québec program, a well-known program in the Canadian province of Quebec. Using machine-learning, artificial intelligence and targeted data mining, the report identifies local products and comparator products, to consider whether locally certified products are more expensive than comparative products coming from outside Quebec. Uncertified products used as comparative products come from anywhere around the world, outside of the province of Quebec. For this study, a total of more than 350,000 discrete price data points were analyzed in the Winter 2022. Local product prices were examined relative to the prices of comparator products. In total, there were 48 subcategories considered. In 70.83% of the subcategories, the local product was either as expensive (similar price) or less expensive than the comparator product. Results challenge the popular belief that local food products are often more expensive. This study also provides limitation and future research paths.

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Section: Resultsmentioning

confidence: 99%

Is Buying Local Less Expensive? Debunking a Myth—Assessing the Price Competitiveness of Local Food Products in Canada

Charlebois

Hill

Morrison

et al. 2022

Foods

View full text Add to dashboard Cite

show abstract

“…In this multipurpose network of protected areas, the aim of partial protection is primarily socio-economic. However, by giving the exclusive access of ressources to local communities through locally managed MPAs, positive impacts can be found in increased awareness of resource management and food security 79,91 . Furthermore, economic bene ts do not stop at food security, protection settings also include additional bene ts such as tourism revenue or savings due to ood or storm damage mitigation 92 .…”

Section: Discussionmentioning

confidence: 99%

Towards a productivity-based management of tropical reefs in the Anthropocene

Seguin

Mouillot

Cinner

et al. 2022

Preprint

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Tropical reefs provide livelihood and food security to millions of people. However, tropical reefs are entering new configurations requiring management strategies to incorporate process-oriented measures such as biomass production to determine their dynamics and resilience. We proposed a new framework, comprising three management strategies based on fish standing biomass and productivity which were calculated on 2,027 reef sites over 39 countries. We found that 3.5% of the sites have low fish biomass and productivity, where alternative fisheries like seaweed and bivalve aquaculture are recommended. We identified 24% of high productivity sites where we suggest adaptive management: establishment of partially protected areas sustaining local fisheries when needed, or full protection when possible given their capacity for recovery. For the 5% high biomass sites, we urgently need full protection to maintain high reproductive capacity through large individuals. Our framework can thus guide management strategies by incorporating both static and process-oriented measures, tailoring each strategy to local priorities based on biodiversity and socio-economic objectives.

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“…the fishing vulnerability of each nutrient catch, weighted by species (Maire et al, 2021). Using our evenness-vulnerability framework, we assessed the potential for multispecies (high nutrient-catch evenness) and single-species approaches to nutrient-based management (low nutrient-catch evenness) and identified countries with nutrient catches that were resilient or vulnerable to fishing.…”

Section: Predicting Nutrient Management Potentialmentioning

confidence: 99%

Managing fisheries for maximum nutrient yield

et al. 2022

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Wild-caught fish are a bioavailable source of nutritious food that, if managed strategically, could enhance diet quality for billions of people. However, optimising nutrient production from the sea has not been a priority, hindering development of nutritionsensitive policies. With fisheries management increasingly effective at rebuilding stocks and regulating sustainable fishing, we can now begin to integrate nutritional outcomes within existing management frameworks. Here, we develop a conceptual foundation for managing fisheries for multispecies Maximum Nutrient Yield (mMNY).We empirically test our approach using size-based models of North Sea and Baltic Sea fisheries and show that mMNY is predicted by the relative contribution of nutritious species to total catch and their vulnerability to fishing, leading to trade-offs between catch and specific nutrients. Simulated nutrient yield curves suggest that vitamin D, which is deficient in Northern European diets, was underfished at fishing levels that returned maximum catch weights. Analysis of global catch data shows there is scope for nutrient yields from most of the world's marine fisheries to be enhanced through nutrient-sensitive fisheries management. With nutrient composition data now widely available, we expect our mMNY framework to motivate development of nutrientbased reference points in specific contexts, such as data-limited fisheries. Managing for mMNY alongside policies that promote access to fish could help close nutrient gaps for coastal populations, maximising the contribution of wild-caught fish to global food and nutrition security.

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Micronutrient supply from global marine fisheries under climate change and overfishing

Cited by 46 publications

References 40 publications

Is Buying Local Less Expensive? Debunking a Myth—Assessing the Price Competitiveness of Local Food Products in Canada

Is Buying Local Less Expensive? Debunking a Myth—Assessing the Price Competitiveness of Local Food Products in Canada

Towards a productivity-based management of tropical reefs in the Anthropocene

Managing fisheries for maximum nutrient yield

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