Combined climate and nutritional performance of seafoods

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For the week of 22 July 2019

Greetings OpenChannels Community Members,

Journal of Cleaner Production published, Combined climate and nutritional performance of seafoods.

Abstract: National authorities in many countries advise their populations to eat more seafood, for health and sometimes for environmental purposes, but give little guidance as to what type of seafood should be consumed. The large diversity in species and production methods results in variability both in the nutritional content and in the environmental performance of seafoods. More targeted dietary advice for sustainable seafood consumption requires a better understanding of the relative nutritional benefits against environmental costs of various types of seafood. This study analyzes the combined climate and nutritional performance of seafood commonly consumed in Sweden, originating all over the world. Nutrient density scores, assessed by seven alternative methods, are combined with species- technology- and origin-specific greenhouse gas emission data for 37 types of seafood. An integrated score indicates which seafood products provide the greatest nutritional value at the lowest climate costs and hence should be promoted from this perspective. Results show that seafoods consumed in Sweden differ widely in nutritional value as well as climate impact and that the two measures are not correlated across all species. Dietary changes towards increased consumption of more seafood choices where a correlation exists (e.g. pelagic species like sprat, herring and mackerel) would benefit both health and climate. Seafoods with a higher climate impact in relation to their nutritional value (e.g. shrimp, Pangasius and plaice) should, on the other hand, not be promoted in dietary advice. The effect of individual nutrients and implications of different nutrient density scores is evaluated. This research is a first step towards modelling the joint nutritional and climate benefits of seafood as a concrete baseline for policy-making, e.g. in dietary advice. It should be followed up by modelling other species, including environmental toxins in seafood in the nutrition score, and expanding to cover other environmental aspects.

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Adaptive Management

OA: Nickols, K. J. et al. Setting ecological expectations for adaptive management of marine protected areasJournal of Applied Ecology (2019). doi:10.1111/1365-2664.13463

Aquaculture, Seafood, and Food Security

OA: Hallström, E. et al. Combined climate and nutritional performance of seafoodsJournal of Cleaner Production 230, 402 - 411 (2019).

Blue Economy

OA: Garland, M., Axon, S., Graziano, M., Morrissey, J. & C. Heidkamp, P. The blue economy: Identifying geographic concepts and sensitivitiesGeography Compass (2019). doi:10.1111/gec3.12445

Distributions of Species

OA: Alt, K. G., Kochmann, J., Klimpel, S. & Cunze, S. Improving species distribution models of zoonotic marine parasitesScientific Reports 9, (2019).

Ecosystem Services and Uses

OA: Chaigneau, T., Brown, K., Coulthard, S., Daw, T. M. & Szaboova, L. Money, use and experience: Identifying the mechanisms through which ecosystem services contribute to wellbeing in coastal Kenya and MozambiqueEcosystem Services 38, 100957 (2019).

Fisheries and Fisheries Management

OA: Cannon, J. et al. Fishery improvement projects: Performance over the past decadeMarine Policy 97, 179 - 187 (2018).

Food for Thought

OA: Bennett, N. J., Blythe, J., Cisneros-Montemayor, A. M., Singh, G. G. & U. Sumaila, R. Just Transformations to SustainabilitySustainability 11, 3881 (2019).

Human Impacts on the Environment

OA: Sagerman, J., Hansen, J. P. & Wikström, S. A. Effects of boat traffic and mooring infrastructure on aquatic vegetation: A systematic review and meta-analysisAmbio (2019). doi:10.1007/s13280-019-01215-9

Pollution and Marine Debris

OA: Barboza, L. Gabriel An et al. Microplastics cause neurotoxicity, oxidative damage and energy-related changes and interact with the bioaccumulation of mercury in the European seabass, Dicentrarchus labrax (Linnaeus, 1758)Aquatic Toxicology 195, 49 - 57 (2018).

Recreational Fisheries

OA: Townhill, B. L. et al. Marine recreational fishing and the implications of climate changeFish and Fisheries (2019). doi:10.1111/faf.12392


OA: Renzi, J. J., He, Q. & Silliman, B. R. Harnessing Positive Species Interactions to Enhance Coastal Wetland RestorationFrontiers in Ecology and Evolution 7, (2019).

Tools and Data

OA: Bax, N. J. et al. A Response to Scientific and Societal Needs for Marine Biological ObservationsFrontiers in Marine Science 6, (2019).


Preprint: Z. Shamir, Z., S. Shamir, Z., Tchernov, D., Scheinin, A. & Becker, N. Shark aggregation and tourism: opportunities and challenges of an emerging phenomenonInternational Journal of Sustainable Development & World Ecology 26, 406 - 414 (2019).