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Maire E, Robinson JPW, McLean M, Arif S, Zamborain-Mason J, Cinner JE, Ferse SCA, Graham NAJ, Hoey AS, MacNeil MA, Mouillot D, Hicks CC. Managing nutrition-biodiversity trade-offs on coral reefs. Curr Biol 2024:S0960-9822(24)01146-1. [PMID: 39293442 DOI: 10.1016/j.cub.2024.08.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 06/27/2024] [Accepted: 08/16/2024] [Indexed: 09/20/2024]
Abstract
Coral reefs support an incredible abundance and diversity of fish species, with reef-associated fisheries providing important sources of income, food, and dietary micronutrients to millions of people across the tropics. However, the rapid degradation of the world's coral reefs and the decline in their biodiversity may limit their capacity to supply nutritious and affordable seafood while meeting conservation goals for sustainability. Here, we conduct a global-scale analysis of how the nutritional quality of reef fish assemblages (nutritional contribution to the recommended daily intake of calcium, iron, and zinc contained in an average 100 g fish on the reef) relates to key environmental, socioeconomic, and ecological conditions, including two key metrics of fish biodiversity. Our global analysis of more than 1,600 tropical reefs reveals that fish trophic composition is a more important driver of micronutrient concentrations than socioeconomic and environmental conditions. Specifically, micronutrient density increases as the relative biomass of herbivores and detritivores increases at lower overall biomass or under high human pressure. This suggests that the provision of essential micronutrients can be maintained or even increase where fish biomass decreases, reinforcing the need for policies that ensure sustainable fishing, and that these micronutrients are retained locally for nutrition. Furthermore, we found a negative association between micronutrient density and two metrics of fish biodiversity, revealing an important nutrition-biodiversity trade-off. Protecting reefs with high levels of biodiversity maintains key ecosystem functions, whereas sustainable fisheries management in locations with high micronutrient density could sustain the essential supply of micronutrients to coastal human communities.
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Affiliation(s)
- Eva Maire
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK; MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Montpellier, France.
| | - James P W Robinson
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK
| | - Matthew McLean
- Department of Biology and Marine Biology, Center for Marine Science, University of North Carolina Wilmington, Wilmington, NC 28403, USA
| | - Suchinta Arif
- Ocean Frontier Institute, Department of Biology, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Jessica Zamborain-Mason
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA
| | - Joshua E Cinner
- Thriving Oceans Research Hub, School of Geosciences, University of Sydney, Camperdown, NSW 2006, Australia
| | - Sebastian C A Ferse
- Leibniz Centre for Tropical Marine Research (ZMT), 28359 Bremen, Germany; Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359 Bremen, Germany; Faculty of Fisheries and Marine Sciences, Bogor Agricultural University, Bogor 16680, Indonesia
| | | | - Andrew S Hoey
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - M Aaron MacNeil
- Ocean Frontier Institute, Department of Biology, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - David Mouillot
- MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Montpellier, France; Institut Universitaire de France, Paris, France
| | - Christina C Hicks
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK
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2
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Çakmakçı S, Polatoğlu B, Çakmakçı R. Foods of the Future: Challenges, Opportunities, Trends, and Expectations. Foods 2024; 13:2663. [PMID: 39272427 PMCID: PMC11393958 DOI: 10.3390/foods13172663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 08/20/2024] [Accepted: 08/22/2024] [Indexed: 09/15/2024] Open
Abstract
Creating propositions for the near and distant future requires a design to catch the tide of the times and move with or against trends. In addition, appropriate, adaptable, flexible, and transformational projects are needed in light of changes in science, technology, social, economic, political, and demographic fields over time. Humanity is facing a period in which science and developing technologies will be even more important in solving food safety, health, and environmental problems. Adapting to and mitigating climate change; reducing pollution, waste, and biodiversity loss; and feeding a growing global population with safe food are key challenges facing the agri-food industry and the food supply chain, requiring systemic transformation in agricultural systems and sustainable future agri-food. The aim of this review is to compile scientific evidence and data, define, and create strategies for the future in terms of food security, safety, and sufficiency; future sustainable foods and alternative protein sources; factors affecting food and nutrition security and agriculture; and promising food systems such as functional foods, novel foods, synthetic biology, and 3D food printing. In this review, the safety, conservation, nutritional, sensory, welfare, and potential challenges and limitations of food systems and the opportunities to overcome them on the basis of new approaches, innovative interpretations, future possibilities, and technologies are discussed. Additionally, this review also offers suggestions for future research and food trends in light of future perspectives. This article focuses on future sustainable foods, alternative protein sources, and novel efficient food systems, highlights scientific and technological advances and new research directions, and provides a significant perspective on sustainability.
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Affiliation(s)
- Songül Çakmakçı
- Department of Food Engineering, Faculty of Agriculture, Atatürk University, 25240 Erzurum, Türkiye
| | - Bilgehan Polatoğlu
- Department of Food Technology, Technical Sciences Vocational School, Atatürk University, 25240 Erzurum, Türkiye
- Department of Nanoscience and Nanoengineering, Graduate School of Natural and Applied Sciences, Atatürk University, 25240 Erzurum, Türkiye
| | - Ramazan Çakmakçı
- Department of Field Crops, Faculty of Agriculture, Çanakkale Onsekiz Mart University, 17100 Çanakkale, Türkiye
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3
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Fiorella KJ, Bageant ER, Thilsted SH, Heilpern SA. Commercially traded fish portfolios mask household utilization of biodiversity in wild food systems. Proc Natl Acad Sci U S A 2024; 121:e2403691121. [PMID: 39018198 PMCID: PMC11287268 DOI: 10.1073/pnas.2403691121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/24/2024] [Indexed: 07/19/2024] Open
Abstract
The global biodiversity that underpins wild food systems-including fisheries-is rapidly declining. Yet, we often have only a limited understanding of how households use and benefit from biodiversity in the ecosystems surrounding them. Explicating these relationships is critical to forestall and mitigate the effects of biodiversity declines on food and nutrition security. Here, we quantify how biodiversity filters from ecosystems to household harvest, consumption, and sale, and how ecological traits and household characteristics shape these relationships. We used a unique, integrated ecological (40 sites, quarterly data collection) and household survey (n = 414, every 2 mo data collection) dataset collected over 3 y in rice field fisheries surrounding Cambodia's Tonlé Sap, one of Earth's most productive and diverse freshwater systems. While ecosystem biodiversity was positively associated with household catch, consumption, and sold biodiversity, households consumed an average of 43% of the species present in the ecosystem and sold only 9%. Larger, less nutritious, and more common species were disproportionally represented in portfolios of commercially traded species, while consumed species mirrored catches. The relationship between ecosystem and consumed biodiversity was remarkably consistent across variation in household fishing effort, demographics, and distance to nearest markets. Poorer households also consumed more species, underscoring how wild food systems may most benefit the vulnerable. Our findings amplify concerns about the impacts of biodiversity loss on our global food systems and highlight that utilization of biodiversity for consumption may far exceed what is commercially traded.
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Affiliation(s)
- Kathryn J. Fiorella
- Department of Public and Ecosystem Health, Cornell University, Ithaca, NY14850
| | | | - Shakuntala H. Thilsted
- Nutrition, Health and Food Security Impact Area Platform, Consultative Group for International Agricultural Research, Washington, DC20005
| | - Sebastian A. Heilpern
- Department of Public and Ecosystem Health, Cornell University, Ithaca, NY14850
- Department of Natural Resources and the Environment, Cornell University, Ithaca, NYUSA 14850
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4
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Galligan BP, McClanahan TR. Tropical fishery nutrient production depends on biomass-based management. iScience 2024; 27:109420. [PMID: 38510133 PMCID: PMC10952041 DOI: 10.1016/j.isci.2024.109420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/17/2023] [Accepted: 03/01/2024] [Indexed: 03/22/2024] Open
Abstract
The need to enhance nutrient production from tropical ecosystems to feed the poor could potentially create a new framework for fisheries science and management. Early recommendations have included targeting small fishes and increasing the species richness of fish catches, which could represent a departure from more traditional approaches such as biomass-based management. To test these recommendations, we compared the outcomes of biomass-based management with hypothesized factors influencing nutrient density in nearshore artisanal fish catches in the Western Indian Ocean. We found that enhancing nutrient production depends primarily on achieving biomass-based targets. Catches dominated by low- and mid-trophic level species with smaller body sizes and faster turnover were associated with modest increases in nutrient densities, but the variability in nutrient density was small relative to human nutritional requirements. Therefore, tropical fishery management should focus on restoring biomass to achieve maximum yields and sustainability, particularly for herbivorous fishes.
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Affiliation(s)
- Bryan P. Galligan
- Jesuit Justice and Ecology Network Africa, Karen, Nairobi 00502, Kenya
- Loyola University Chicago, Department of Biology, Chicago, IL 60660, USA
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5
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Iannotti L, Randrianarivony T, Randrianasolo A, Rakotoarivony F, Andriamihajarivo T, LaBrier M, Gyimah E, Vie S, Nunez-Garcia A, Hart R. Wild Foods Are Positively Associated with Diet Diversity and Child Growth in a Protected Forest Area of Madagascar. Curr Dev Nutr 2024; 8:102101. [PMID: 38590953 PMCID: PMC10999825 DOI: 10.1016/j.cdnut.2024.102101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 01/22/2024] [Accepted: 02/07/2024] [Indexed: 04/10/2024] Open
Abstract
Background Concurrent losses in biodiversity and human dietary diversity are evident in Madagascar and across many food systems globally. Wild food harvest can mitigate nutrition insecurities but may also pose species conservation concerns. Objectives This study aimed to examine the association of wild plant and animal species consumption during hunger season with diet diversity and child growth near the Alandraza-Agnalavelo protected forest in Southwestern Madagascar. Second, we studied the conservation status of the consumed wild plants. Methods Methods from public health nutrition (24-h recall dietary intake, anthropometry using World Health Organization [WHO] Growth Standards), ethnobotany, and forest ecology (ecologic studies of abundance, habitat preference, associated species, food chemistry assays, and species richness) were applied. Results Malnutrition in children (n = 305) was highly prevalent: stunting (32.3%); wasting (18.8%); and low-dietary diversity (4% meeting WHO minimum dietary diversity threshold). Animal foods were consumed in small quantities, providing <10% of Dietary Reference Intakes for all limiting nutrients. Twenty-two wild plant species were consumed during hunger season, prominently tubers (Dioscoreaceae), and leafy greens (Asteraceae, Blechnaceae, Portulacaceae, and Solanaceae). Eight of the 9 target species were identified as abundant and "Least Concern," whereas Amorphophollus taurostigma was abundant and "Vulnerable." Regression modeling showed wild food consumption was associated with an increased household dietary diversity score [β = 0.29 (0.06 standard error); P < 0.001], and total wild animal foods positively correlated with height-for-age Z score [β = 0.14 (0.07 standard error); P = 0.04]. Conclusions Wild plant and animal foods may be an important element of food systems to support human nutrition while maintaining ecosystem viability.
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Affiliation(s)
- Lora Iannotti
- E3 Nutrition Lab, Institute for Public Health, Washington University in St. Louis, Saint Louis, MO, United States
| | - Tabita Randrianarivony
- Missouri Botanical Garden, Madagascar Research and Conservation Program, Antananarivo, Madagascar
| | - Armand Randrianasolo
- William L. Brown Center, Missouri Botanical Garden, St. Louis, MO, United States
| | - Fortunat Rakotoarivony
- Missouri Botanical Garden, Madagascar Research and Conservation Program, Antananarivo, Madagascar
| | - Tefy Andriamihajarivo
- Missouri Botanical Garden, Madagascar Research and Conservation Program, Antananarivo, Madagascar
| | - Mia LaBrier
- E3 Nutrition Lab, Institute for Public Health, Washington University in St. Louis, Saint Louis, MO, United States
| | - Emmanuel Gyimah
- E3 Nutrition Lab, Institute for Public Health, Washington University in St. Louis, Saint Louis, MO, United States
| | - Sydney Vie
- E3 Nutrition Lab, Institute for Public Health, Washington University in St. Louis, Saint Louis, MO, United States
| | - Andrea Nunez-Garcia
- E3 Nutrition Lab, Institute for Public Health, Washington University in St. Louis, Saint Louis, MO, United States
| | - Robbie Hart
- William L. Brown Center, Missouri Botanical Garden, St. Louis, MO, United States
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6
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van Rees CB, Hernández-Abrams DD, Shudtz M, Lammers R, Byers J, Bledsoe BP, Bilskie MV, Calabria J, Chambers M, Dolatowski E, Ferreira S, Naslund L, Nelson DR, Nibbelink N, Suedel B, Tritinger A, Woodson CB, McKay SK, Wenger SJ. Reimagining infrastructure for a biodiverse future. Proc Natl Acad Sci U S A 2023; 120:e2214334120. [PMID: 37931104 PMCID: PMC10655554 DOI: 10.1073/pnas.2214334120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023] Open
Abstract
Civil infrastructure will be essential to face the interlinked existential threats of climate change and rising resource demands while ensuring a livable Anthropocene for all. However, conventional infrastructure planning largely neglects the contributions and maintenance of Earth's ecological life support systems, which provide irreplaceable services supporting human well-being. The stability and performance of these services depend on biodiversity, but conventional infrastructure practices, narrowly focused on controlling natural capital, have inadvertently degraded biodiversity while perpetuating social inequities. Here, we envision a new infrastructure paradigm wherein biodiversity and ecosystem services are a central objective of civil engineering. In particular, we reimagine infrastructure practice such that 1) ecosystem integrity and species conservation are explicit objectives from the outset of project planning; 2) infrastructure practices integrate biodiversity into diverse project portfolios along a spectrum from conventional to nature-based solutions and natural habitats; 3) ecosystem functions reinforce and enhance the performance and lifespan of infrastructure assets; and 4) civil engineering promotes environmental justice by counteracting legacies of social inequity in infrastructure development and nature conservation. This vision calls for a fundamental rethinking of the standards, practices, and mission of infrastructure development agencies and a broadening of scope for conservation science. We critically examine the legal and professional precedents for this paradigm shift, as well as the moral and economic imperatives for manifesting equitable infrastructure planning that mainstreams biodiversity and nature's benefits to people. Finally, we set an applied research agenda for supporting this vision and highlight financial, professional, and policy pathways for achieving it.
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Affiliation(s)
- Charles B. van Rees
- River Basin Center, Odum School of Ecology, University of Georgia, Athens, GA30602
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
| | - Darixa D. Hernández-Abrams
- Environmental Laboratory, U.S. Army Corps of Engineers Engineer Research and Development Center, Vicksburg, MS39180
| | - Matthew Shudtz
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
| | - Roderick Lammers
- Department of Environmental Engineering, Central Michigan University, Mount Pleasant, MI48858
| | - James Byers
- River Basin Center, Odum School of Ecology, University of Georgia, Athens, GA30602
| | - Brian P. Bledsoe
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
- School of Environmental, Civil, Agricultural, and Mechanical Engineering, College of Engineering, University of Georgia, Athens, GA30602
| | - Matthew V. Bilskie
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
- School of Environmental, Civil, Agricultural, and Mechanical Engineering, College of Engineering, University of Georgia, Athens, GA30602
| | - Jon Calabria
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
- College of Environment and Design, University of Georgia, Athens, GA30602
| | - Matthew Chambers
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
- School of Environmental, Civil, Agricultural, and Mechanical Engineering, College of Engineering, University of Georgia, Athens, GA30602
| | - Emily Dolatowski
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
- College of Environment and Design, University of Georgia, Athens, GA30602
| | - Susana Ferreira
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
- College of Agricultural Economics, Department of Agricultural and Applied Economics, University of Georgia, Athens, GA30602
| | - Laura Naslund
- River Basin Center, Odum School of Ecology, University of Georgia, Athens, GA30602
| | - Donald R. Nelson
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
- Department of Anthropology, College of Arts and Sciences, University of Georgia, Athens, GA30602
| | - Nathan Nibbelink
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA30602
| | - Burton Suedel
- Environmental Laboratory, U.S. Army Corps of Engineers Engineer Research and Development Center, Vicksburg, MS39180
| | - Amanda Tritinger
- Environmental Laboratory, U.S. Army Corps of Engineers Engineer Research and Development Center, Vicksburg, MS39180
| | - C. Brock Woodson
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
- School of Environmental, Civil, Agricultural, and Mechanical Engineering, College of Engineering, University of Georgia, Athens, GA30602
| | - S. Kyle McKay
- Environmental Laboratory, U.S. Army Corps of Engineers Engineer Research and Development Center, Vicksburg, MS39180
| | - Seth J. Wenger
- River Basin Center, Odum School of Ecology, University of Georgia, Athens, GA30602
- Institute for Resilient Infrastructure Systems, University of Georgia, Athens, GA30602
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7
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Heilpern SA, Herrera-R GA, Fiorella KJ, Moya L, Flecker AS, McIntyre PB. Species trait diversity sustains multiple dietary nutrients supplied by freshwater fisheries. Ecol Lett 2023; 26:1887-1897. [PMID: 37671723 DOI: 10.1111/ele.14299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/07/2023]
Abstract
Species, through their traits, influence how ecosystems simultaneously sustain multiple functions. However, it is unclear how trait diversity sustains the multiple contributions biodiversity makes to people. Freshwater fisheries nourish hundreds of millions of people globally, but overharvesting and river fragmentation are increasingly affecting catches. We analyse how loss of nutritional trait diversity in consumed fish portfolios affects the simultaneous provisioning of six essential dietary nutrients using household data from the Amazon and Tonlé Sap, two of Earth's most productive and diverse freshwater fisheries. We find that fish portfolios with high trait diversity meet higher thresholds of required daily intakes for a greater variety of nutrients with less fish biomass. This beneficial biodiversity effect is driven by low redundancy in species nutrient content profiles. Our findings imply that sustaining the dietary contributions fish make to people given declining biodiversity could require more biomass and ultimately exacerbate fishing pressure in already-stressed ecosystems.
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Affiliation(s)
- Sebastian A Heilpern
- Department of Natural Resources and Environment, Cornell University, Ithaca, New York, USA
| | - Guido A Herrera-R
- Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, USA
| | - Kathryn J Fiorella
- Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, New York, USA
| | - Luis Moya
- Wildlife Conservation Society, Iquitos, Perú
| | - Alexander S Flecker
- Deparment of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, USA
| | - Peter B McIntyre
- Department of Natural Resources and Environment, Cornell University, Ithaca, New York, USA
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8
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Ignowski L, Belton B, Ali H, Thilsted SH. Integrated aquatic and terrestrial food production enhances micronutrient and economic productivity for nutrition-sensitive food systems. NATURE FOOD 2023; 4:866-873. [PMID: 37666998 PMCID: PMC10589083 DOI: 10.1038/s43016-023-00840-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 08/09/2023] [Indexed: 09/06/2023]
Abstract
Integrated aquaculture-agriculture (IAA) is a form of crop diversification where aquatic and terrestrial foods are grown together on a single parcel of land. We compare economic and nutrient productivity per hectare for 12 distinct IAA combinations, identified from a representative survey of 721 farms in southern Bangladesh. Just under half of households integrate agriculture into their aquaculture production. Regression analyses show positive associations between the integration of terrestrial foods into aquatic farming systems and nutrient productivity, but that nutrient productivity is partly disconnected from economic productivity. However, we find that production of specific combinations of aquatic foods and vegetables can simultaneously improve nutrient productivity and economic productivity, thereby promoting nutrition-sensitive agriculture (NSA). The approach demonstrated here can be applied to the design of NSA programmes that are important for realizing nutrition-sensitive food systems.
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Affiliation(s)
| | - Ben Belton
- Michigan State University, East Lansing, MI, USA
- International Food Policy Research Institute, Dhaka, Bangladesh
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9
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Shalders TC, Champion C, Coleman MA, Butcherine P, Broadhurst MK, Mead B, Benkendorff K. Impacts of seasonal temperatures, ocean warming and marine heatwaves on the nutritional quality of eastern school prawns (Metapenaeus macleayi). THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 876:162778. [PMID: 36906039 DOI: 10.1016/j.scitotenv.2023.162778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/26/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
Ocean warming and marine heatwaves significantly alter environmental conditions in marine and estuarine environments. Despite their potential global importance for nutrient security and human health, it is not well understood how thermal impacts could alter the nutritional quality of harvested marine resources. We tested whether short-term experimental exposure to seasonal temperatures, projected ocean-warming temperatures, and marine heatwaves affected the nutritional quality of the eastern school prawn (Metapenaeus macleayi). In addition, we tested whether nutritional quality was affected by the duration of exposure to warm temperatures. We show the nutritional quality of M. macleayi is likely to be resilient to short- (28 d), but not longer-term (56 d) exposure to warming temperatures. The proximate, fatty acid and metabolite compositions of M. macleayi were unchanged after 28 d exposure to simulated ocean warming and marine heatwaves. The ocean-warming scenario did, however, show potential for elevated sulphur, iron and silver levels after 28 d. Decreasing saturation of fatty acids in M. macleayi after 28 d exposure to cooler temperatures indicates homeoviscous adaptation to seasonal changes. We found that 11 % of measured response variables were significantly different between 28 and 56 d when exposed to the same treatment, indicating the duration of exposure time and time of sampling are critical when measuring this species' nutritional response. Further, we found that future acute warming events could reduce harvestable biomass, despite survivors retaining their nutritional quality. Developing a combined knowledge of the variability in seafood nutrient content with shifts in the availability of harvested seafood is crucial for understanding seafood-derived nutrient security in a changing climate.
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Affiliation(s)
- Tanika C Shalders
- Faculty of Science and Engineering, National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia; NSW Department of Primary Industries, National Marine Science Centre, Coffs Harbour, New South Wales, Australia.
| | - Curtis Champion
- Faculty of Science and Engineering, National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia; NSW Department of Primary Industries, National Marine Science Centre, Coffs Harbour, New South Wales, Australia
| | - Melinda A Coleman
- Faculty of Science and Engineering, National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia; NSW Department of Primary Industries, National Marine Science Centre, Coffs Harbour, New South Wales, Australia
| | - Peter Butcherine
- Faculty of Science and Engineering, National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia
| | - Matt K Broadhurst
- Faculty of Science and Engineering, National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia; NSW Department of Primary Industries, National Marine Science Centre, Coffs Harbour, New South Wales, Australia
| | - Bryan Mead
- Analytical Research Laboratory, Southern Cross Analytical and Research Services, Southern Cross University, Lismore, New South Wales, Australia
| | - Kirsten Benkendorff
- Faculty of Science and Engineering, National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia
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10
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Partelow S, Nagel B, Paramita AO, Buhari N. Seafood consumption changes and COVID-19 impact index in West Nusa Tenggara, Indonesia. PLoS One 2023; 18:e0280134. [PMID: 36652444 PMCID: PMC9847987 DOI: 10.1371/journal.pone.0280134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 12/21/2022] [Indexed: 01/19/2023] Open
Abstract
This empirical study examines seafood consumption patterns in the province of West Nusa Tenggara, Indonesia at the regency level, and analyzes changes in consumption patterns during the COVID-19 (SARS-CoV-2) virus outbreak. We used a stratified semi-random general population survey administered online through mobile devices from November 24th-December 31st 2020 for rapid assessment and dissemination, which received 1518 respondents. Our findings enabled us to generate a COVID-19 impact index at the regency level, indicating an urban-to-rural gradient in the degree of change in seafood consumption patterns, with rural areas incurring more changes. During COVID-19, 61% of respondents ate less seafood than normal, 66% stated seafood was more expensive, and 37% stated that the seafood they normally buy was not available. Respondents also bought 5% less fresh or raw seafood, and 4.3% more pre-cooked seafood products during the pandemic. Traditional markets, mobile vendors, and food stands remain the most frequent access points for seafood, although access decreased during the pandemic for all, with mini- and supermarket access slightly increasing. Raw and fresh seafood purchases from travelling merchants decreased 12.5% during the pandemic. A larger percentage of women (~10% more than men) eat fish at least once per week, and women eat a larger diversity of seafood products. However, men classified themselves on average in a higher income class than women both before and during the pandemic, and men were significantly more likely to agree that they had enough money to buy the food they wanted during the pandemic. Overall, respondents who indicated eating a higher frequency of fish per week, were significantly more likely to agree that they ate less fish during the pandemic. Respondents on Sumbawa island were significantly more likely to agree that the fisheries products were not available during the pandemic.
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Affiliation(s)
- Stefan Partelow
- Leibniz Centre for Tropical Marine Research (ZMT), Bremen, Germany
| | - Ben Nagel
- Leibniz Centre for Tropical Marine Research (ZMT), Bremen, Germany
- Jacobs University, Bremen, Germany
| | - Adiska Octa Paramita
- Leibniz Centre for Tropical Marine Research (ZMT), Bremen, Germany
- Jacobs University, Bremen, Germany
| | - Nurliah Buhari
- University of Mataram, Lombok, West Nusa Tenggara, Indonesia
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11
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Sguotti C, Bischoff A, Conversi A, Mazzoldi C, Möllmann C, Barausse A. Stable landings mask irreversible community reorganizations in an overexploited Mediterranean ecosystem. J Anim Ecol 2022; 91:2465-2479. [PMID: 36415049 DOI: 10.1111/1365-2656.13831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 09/23/2022] [Indexed: 11/24/2022]
Abstract
Cumulative human pressures and climate change can induce nonlinear discontinuous dynamics in ecosystems, known as regime shifts. Regime shifts typically imply hysteresis, a lacking or delayed system response when pressures are reverted, which can frustrate restoration efforts. Here, we investigate whether the northern Adriatic Sea fish and macroinvertebrate community, as depicted by commercial fishery landings, has undergone regime shifts over the last 40 years, and the reversibility of such changes. We use a stochastic cusp model to show that, under the interactive effect of fishing pressure and water warming, the community reorganized through discontinuous changes. We found that part of the community has now reached a new stable state, implying that a recovery towards previous baselines might be impossible. Interestingly, total landings remained constant across decades, masking the low resilience of the community. Our study reveals the importance of carefully assessing regime shifts and resilience in marine ecosystems under cumulative pressures and advocates for their inclusion into management.
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Affiliation(s)
- Camilla Sguotti
- Institute for Marine Ecosystem and Fisheries Science (IFM), Center for Earth System Research and Sustainability (CEN), University of Hamburg, Hamburg, Germany.,Department of Biology, University of Padova, Padova, Italy
| | - Aurelia Bischoff
- Institute for Marine Ecosystem and Fisheries Science (IFM), Center for Earth System Research and Sustainability (CEN), University of Hamburg, Hamburg, Germany
| | - Alessandra Conversi
- National Research Council of Italy, Marine Science Institute, CNR - ISMAR - LERICI, Forte Santa Teresa, Lerici, SP, Italy
| | - Carlotta Mazzoldi
- Department of Biology, University of Padova, Padova, Italy.,CoNISMa, National Inter-University Consortium for Marine Sciences, Rome, Italy
| | - Christian Möllmann
- Institute for Marine Ecosystem and Fisheries Science (IFM), Center for Earth System Research and Sustainability (CEN), University of Hamburg, Hamburg, Germany
| | - Alberto Barausse
- Department of Biology, University of Padova, Padova, Italy.,CoNISMa, National Inter-University Consortium for Marine Sciences, Rome, Italy
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12
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Robinson JPW, Mills DJ, Asiedu GA, Byrd K, Mancha Cisneros MDM, Cohen PJ, Fiorella KJ, Graham NAJ, MacNeil MA, Maire E, Mbaru EK, Nico G, Omukoto JO, Simmance F, Hicks CC. Small pelagic fish supply abundant and affordable micronutrients to low- and middle-income countries. NATURE FOOD 2022; 3:1075-1084. [PMID: 37118295 DOI: 10.1038/s43016-022-00643-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 10/20/2022] [Indexed: 04/30/2023]
Abstract
Wild-caught fish provide an irreplaceable source of essential nutrients in food-insecure places. Fishers catch thousands of species, yet the diversity of aquatic foods is often categorized homogeneously as 'fish', obscuring an understanding of which species supply affordable, nutritious and abundant food. Here, we use catch, economic and nutrient data on 2,348 species to identify the most affordable and nutritious fish in 39 low- and middle-income countries. We find that a 100 g portion of fish cost between 10 and 30% of the cheapest daily diet, with small pelagic fish (herring, sardine, anchovy) being the cheapest nutritious fish in 72% of countries. In sub-Saharan Africa, where nutrient deficiencies are rising, <20% of small pelagic catch would meet recommended dietary fish intakes for all children (6 months to 4 years old) living near to water bodies. Nutrition-sensitive policies that ensure local supplies and promote consumption of wild-caught fish could help address nutrient deficiencies in vulnerable populations.
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Affiliation(s)
| | - David J Mills
- WorldFish, Jalan Batu Maung, Batu Maung, Bayan Lepas, Malaysia
- Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, Australia
| | | | - Kendra Byrd
- WorldFish, Jalan Batu Maung, Batu Maung, Bayan Lepas, Malaysia
- Natural Resources Institute, University of Greenwich, Chatham, UK
| | - Maria Del Mar Mancha Cisneros
- Nicholas School of the Environment, Duke University, Durham, NC, USA
- Scripps Institution of Oceanography, University of California, San Diego, CA, USA
| | - Philippa J Cohen
- WorldFish, Jalan Batu Maung, Batu Maung, Bayan Lepas, Malaysia
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Kathryn J Fiorella
- Department of Public & Ecosystem Health, Cornell University, Ithaca, NY, USA
| | | | - M Aaron MacNeil
- Ocean Frontier Institute, Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Eva Maire
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Emmanuel K Mbaru
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Kenya Marine and Fisheries Research Institute, Mombasa, Kenya
| | - Gianluigi Nico
- Fisheries and Aquaculture Department, Food and Agriculture Organization of the United Nations, Rome, Italy
| | - Johnstone O Omukoto
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Kenya Marine and Fisheries Research Institute, Mombasa, Kenya
| | - Fiona Simmance
- WorldFish, Jalan Batu Maung, Batu Maung, Bayan Lepas, Malaysia
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13
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Tigchelaar M, Leape J, Micheli F, Allison EH, Basurto X, Bennett A, Bush SR, Cao L, Cheung WW, Crona B, DeClerck F, Fanzo J, Gelcich S, Gephart JA, Golden CD, Halpern BS, Hicks CC, Jonell M, Kishore A, Koehn JZ, Little DC, Naylor RL, Phillips MJ, Selig ER, Short RE, Sumaila UR, Thilsted SH, Troell M, Wabnitz CC. The vital roles of blue foods in the global food system. GLOBAL FOOD SECURITY 2022. [DOI: 10.1016/j.gfs.2022.100637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Chouvelon T, Gilbert L, Caurant F, Méndez‐Fernandez P, Bustamante P, Brault‐Favrou M, Spitz J. Nutritional grouping of marine forage species reveals contrasted exposure of high trophic levels to essential micro‐nutrients. OIKOS 2022. [DOI: 10.1111/oik.08844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tiphaine Chouvelon
- Observatoire Pelagis, UAR 3462 La Rochelle Univ./CNRS La Rochelle France
- Ifremer, Unité Contamination Chimique des Écosystèmes Marins (CCEM) Nantes Cedex France
| | - Lola Gilbert
- Observatoire Pelagis, UAR 3462 La Rochelle Univ./CNRS La Rochelle France
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 La Rochelle Univ./CNRS Villiers‐en‐Bois France
| | - Florence Caurant
- Observatoire Pelagis, UAR 3462 La Rochelle Univ./CNRS La Rochelle France
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 La Rochelle Univ./CNRS Villiers‐en‐Bois France
| | | | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 La Rochelle Univ./CNRS La Rochelle France
- Inst. Univ. de France (IUF) Paris France
| | - Maud Brault‐Favrou
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 La Rochelle Univ./CNRS La Rochelle France
| | - Jérôme Spitz
- Observatoire Pelagis, UAR 3462 La Rochelle Univ./CNRS La Rochelle France
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 La Rochelle Univ./CNRS Villiers‐en‐Bois France
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15
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The importance of biodiverse plant communities for healthy soils. Proc Natl Acad Sci U S A 2022; 119:2119953118. [PMID: 34996861 PMCID: PMC8740759 DOI: 10.1073/pnas.2119953118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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16
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Khoury CK, Brush S, Costich DE, Curry HA, de Haan S, Engels JMM, Guarino L, Hoban S, Mercer KL, Miller AJ, Nabhan GP, Perales HR, Richards C, Riggins C, Thormann I. Crop genetic erosion: understanding and responding to loss of crop diversity. THE NEW PHYTOLOGIST 2022; 233:84-118. [PMID: 34515358 DOI: 10.1111/nph.17733] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/13/2021] [Indexed: 06/13/2023]
Abstract
Crop diversity underpins the productivity, resilience and adaptive capacity of agriculture. Loss of this diversity, termed crop genetic erosion, is therefore concerning. While alarms regarding evident declines in crop diversity have been raised for over a century, the magnitude, trajectory, drivers and significance of these losses remain insufficiently understood. We outline the various definitions, measurements, scales and sources of information on crop genetic erosion. We then provide a synthesis of evidence regarding changes in the diversity of traditional crop landraces on farms, modern crop cultivars in agriculture, crop wild relatives in their natural habitats and crop genetic resources held in conservation repositories. This evidence indicates that marked losses, but also maintenance and increases in diversity, have occurred in all these contexts, the extent depending on species, taxonomic and geographic scale, and region, as well as analytical approach. We discuss steps needed to further advance knowledge around the agricultural and societal significance, as well as conservation implications, of crop genetic erosion. Finally, we propose actions to mitigate, stem and reverse further losses of crop diversity.
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Affiliation(s)
- Colin K Khoury
- International Center for Tropical Agriculture (CIAT), Km 17, Recta Cali-Palmira, Apartado Aéreo 6713, 763537, Cali, Colombia
- Department of Biology, Saint Louis University, 1 N. Grand Blvd, St Louis, MO, 63103, USA
- San Diego Botanic Garden, 230 Quail Gardens Dr., Encinitas, CA, 92024, USA
| | - Stephen Brush
- University of California Davis, 1 Shields Ave., Davis, CA, 95616, USA
| | - Denise E Costich
- International Maize and Wheat Improvement Center (CIMMYT), Carretera México-Veracruz, Km. 45, El Batán, 56237, Texcoco, México
| | - Helen Anne Curry
- Department of History and Philosophy of Science, University of Cambridge, Free School Lane, Cambridge, CB2 3RH, UK
| | - Stef de Haan
- International Potato Center (CIP), Avenida La Molina 1895, La Molina, Apartado Postal 1558, Lima, Peru
| | | | - Luigi Guarino
- Global Crop Diversity Trust, Platz der Vereinten Nationen 7, 53113, Bonn, Germany
| | - Sean Hoban
- The Morton Arboretum, The Center for Tree Science, 4100 IL-53, Lisle, IL, 60532, USA
| | - Kristin L Mercer
- Department of Horticulture and Crop Science, The Ohio State University, Columbus, OH, 43210, USA
| | - Allison J Miller
- Department of Biology, Saint Louis University, 1 N. Grand Blvd, St Louis, MO, 63103, USA
- Donald Danforth Plant Science Center, 975 N Warson Rd, St Louis, MO, 63132, USA
| | - Gary P Nabhan
- Southwest Center and Institute of the Environment, University of Arizona, 1401 E. First St., PO Box 210185, Tucson, AZ, 85721-0185, USA
| | - Hugo R Perales
- Departamento de Agroecología, El Colegio de la Frontera Sur, San Cristóbal, Chiapas, 29290, México
| | - Chris Richards
- National Laboratory for Genetic Resources Preservation, United States Department of Agriculture, Agricultural Research Service, 1111 South Mason Street, Fort Collins, CO, 80521, USA
| | - Chance Riggins
- Department of Crop Sciences, University of Illinois, 331 Edward R. Madigan Lab, 1201 W. Gregory Dr., Urbana, IL, 61801, USA
| | - Imke Thormann
- Federal Office for Agriculture and Food (BLE), Information and Coordination Centre for Biological Diversity (IBV), Deichmanns Aue 29, 53179, Bonn, Germany
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17
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Ross SRPJ, García Molinos J, Okuda A, Johnstone J, Atsumi K, Futamura R, Williams MA, Matsuoka Y, Uchida J, Kumikawa S, Sugiyama H, Kishida O, Donohue I. Predators mitigate the destabilising effects of heatwaves on multitrophic stream communities. GLOBAL CHANGE BIOLOGY 2022; 28:403-416. [PMID: 34689388 DOI: 10.1111/gcb.15956] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/25/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
Amidst the global extinction crisis, climate change will expose ecosystems to more frequent and intense extreme climatic events, such as heatwaves. Yet, whether predator species loss-a prevailing characteristic of the extinction crisis-will exacerbate the ecological consequences of extreme climatic events remains largely unknown. Here, we show that the loss of predator species can interact with heatwaves to moderate the compositional stability of ecosystems. We exposed multitrophic stream communities, with and without a dominant predator species, to realistic current and future heatwaves and found that heatwaves destabilised algal communities by homogenising them in space. However, this happened only when the predator was absent. Additional heatwave impacts on multiple aspects of stream communities, including changes to the structure of algal and macroinvertebrate communities, as well as total algal biomass and its temporal variability, were not apparent during heatwaves and emerged only after the heatwaves had passed. Taken together, our results suggest that the ecological consequences of heatwaves can amplify over time as their impacts propagate through biological interaction networks, but the presence of predators can help to buffer such impacts. These findings underscore the importance of conserving trophic structure, and highlight the potential for species extinctions to amplify the effects of climate change and extreme events.
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Affiliation(s)
- Samuel R P-J Ross
- Department of Zoology, School of Natural Sciences, Trinity College Dublin, Dublin, Ireland
| | - Jorge García Molinos
- Arctic Research Center, Hokkaido University, Sapporo, Japan
- Global Station for Arctic Research, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Japan
| | - Atsushi Okuda
- Tomakomai Experimental Forest, Field Science Center for Northern Biosphere, Hokkaido University, Takaoka, Tomakomai, Hokkaido, Japan
| | - Jackson Johnstone
- Graduate School of Environmental Science, Hokkaido University, Hakodate, Hokkaido, Japan
| | - Keisuke Atsumi
- Graduate School of Environmental Science, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Ryo Futamura
- Tomakomai Experimental Forest, Field Science Center for Northern Biosphere, Hokkaido University, Takaoka, Tomakomai, Hokkaido, Japan
- Graduate School of Environmental Science, Hokkaido University, Takaoka, Hokkaido, Japan
| | - Maureen A Williams
- Department of Zoology, School of Natural Sciences, Trinity College Dublin, Dublin, Ireland
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, Washington, USA
- Biology Department, McDaniel College, Westminster, Maryland, USA
| | - Yuichi Matsuoka
- Tomakomai Experimental Forest, Field Science Center for Northern Biosphere, Hokkaido University, Takaoka, Tomakomai, Hokkaido, Japan
| | - Jiro Uchida
- Tomakomai Experimental Forest, Field Science Center for Northern Biosphere, Hokkaido University, Takaoka, Tomakomai, Hokkaido, Japan
| | - Shoji Kumikawa
- Tomakomai Experimental Forest, Field Science Center for Northern Biosphere, Hokkaido University, Takaoka, Tomakomai, Hokkaido, Japan
| | - Hiroshi Sugiyama
- Tomakomai Experimental Forest, Field Science Center for Northern Biosphere, Hokkaido University, Takaoka, Tomakomai, Hokkaido, Japan
| | - Osamu Kishida
- Tomakomai Experimental Forest, Field Science Center for Northern Biosphere, Hokkaido University, Takaoka, Tomakomai, Hokkaido, Japan
| | - Ian Donohue
- Department of Zoology, School of Natural Sciences, Trinity College Dublin, Dublin, Ireland
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18
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Loring PA. Regenerative food systems and the conservation of change. AGRICULTURE AND HUMAN VALUES 2021; 39:701-713. [PMID: 34776604 PMCID: PMC8576312 DOI: 10.1007/s10460-021-10282-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
In recent years, interest has increased in regenerative practices as a strategy for transforming food systems and solving major environmental problems such as biodiversity loss and climate change. However, debates persist regarding these practices and how they ought to be defined. This paper presents a framework for exploring the regenerative potential of food systems, focusing on how food systems activities and technologies are organized rather than the specific technologies or practices being employed. The paper begins with a brief review of debates over sustainable food systems and the varying ways that regenerative food systems have been defined and theorized. Then, it provides the theoretical backing of the framework-the conservation of change principle-which is an interpretation of the laws of thermodynamics and theories of adaptive change as relevant to the regenerative capacity of living systems. Next, the paper introduces the framework itself, which comprises two independent but intersecting dimensions of food systems organization: resource diversity and livelihood flexibility. These two dimensions result in four archetypical regimes for food systems: degenerative, regenerative, impoverished, and coerced. The paper defines each and offers real-world examples. Finally, the paper concludes with a discussion of pathways for transforming food systems and opportunities for additional research.
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Affiliation(s)
- Philip A. Loring
- Department of Geography, Environment, and Geomatics, Arrell Food Institute, University of Guelph, 50 Stone Road E., Guelph, ON N1G2W1 Canada
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19
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Joffre OM, Freed S, Bernhardt J, Teoh SJ, Sambath S, Belton B. Assessing the Potential for Sustainable Aquaculture Development in Cambodia. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2021. [DOI: 10.3389/fsufs.2021.704320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Inland capture fisheries are central to livelihoods and food security in Cambodia, but are under threat from growing anthropogenic pressures. Policy discourse in Cambodia increasingly frames aquaculture as a viable alternative to capture fisheries, and seeks to promote its development. This paper presents results from the first comprehensive survey of Cambodia's aquaculture value chain. The study combines qualitative (46 Key Informant Interviews) and quantitative surveys (1,204 farmers and 191 other aquaculture value chain actors) to investigate potential for aquaculture in Cambodia to grow, support livelihoods, and contribute to food security. We found the following: (i) The fish farm sector in Cambodia is comprised mainly of small family farms raising carnivorous fish species or pangasius, using direct inputs of “trash fish” harvested from the wild; (ii) Most fish seed and pelleted feed are imported, and domestic producers of these inputs struggle to compete; (iii) Fish farmed in Cambodia is mostly sold live. Farm fish are more expensive than the main species harvested from inland capture fisheries, and struggle to compete with imported farmed fish; (iv) Capture fisheries employ many times more people than aquaculture; (v) Space for aquaculture is limited because few locations have both perennial access to water and protection from flooding. These findings raise questions about the potential of Cambodia's aquaculture sector, as currently organized, to contribute significantly to employment, food and nutrition security, and rural economic development. We propose actions to improve the sector's sustainability and contribute to desirable development outcomes.
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20
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O'Connor MI, Mori AS, Gonzalez A, Dee LE, Loreau M, Avolio M, Byrnes JEK, Cheung W, Cowles J, Clark AT, Hautier Y, Hector A, Komatsu K, Newbold T, Outhwaite CL, Reich PB, Seabloom E, Williams L, Wright A, Isbell F. Grand challenges in biodiversity-ecosystem functioning research in the era of science-policy platforms require explicit consideration of feedbacks. Proc Biol Sci 2021; 288:20210783. [PMID: 34641733 PMCID: PMC8511742 DOI: 10.1098/rspb.2021.0783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Feedbacks are an essential feature of resilient socio-economic systems, yet the feedbacks between biodiversity, ecosystem services and human wellbeing are not fully accounted for in global policy efforts that consider future scenarios for human activities and their consequences for nature. Failure to integrate feedbacks in our knowledge frameworks exacerbates uncertainty in future projections and potentially prevents us from realizing the full benefits of actions we can take to enhance sustainability. We identify six scientific research challenges that, if addressed, could allow future policy, conservation and monitoring efforts to quantitatively account for ecosystem and societal consequences of biodiversity change. Placing feedbacks prominently in our frameworks would lead to (i) coordinated observation of biodiversity change, ecosystem functions and human actions, (ii) joint experiment and observation programmes, (iii) more effective use of emerging technologies in biodiversity science and policy, and (iv) a more inclusive and integrated global community of biodiversity observers. To meet these challenges, we outline a five-point action plan for collaboration and connection among scientists and policymakers that emphasizes diversity, inclusion and open access. Efforts to protect biodiversity require the best possible scientific understanding of human activities, biodiversity trends, ecosystem functions and—critically—the feedbacks among them.
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Affiliation(s)
- Mary I O'Connor
- Department of Zoology, University of British Columbia, Vancouver, Canada.,Biodiversity Research Centre, University of British Columbia, Vancouver, Canada
| | - Akira S Mori
- Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Japan
| | - Andrew Gonzalez
- Department of Biology, McGill University, Montreal, QC, Canada
| | - Laura E Dee
- Department of Ecology and Evolutionary Biology, University of Colorado at Boulder, Boulder, CO, USA
| | - Michel Loreau
- Theoretical and Empirical Ecology Station, CNRS, Moulis, France
| | - Meghan Avolio
- Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Jarrett E K Byrnes
- College of Science and Mathematics, University of Massachusetts-Boston, Boston, MA, USA
| | - William Cheung
- Biodiversity Research Centre, University of British Columbia, Vancouver, Canada.,Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, Canada
| | - Jane Cowles
- Department of Ecology, Evolution and Behavior, University of Minnesota, St Paul, MN, USA
| | - Adam T Clark
- Institute of Biology, University of Graz, Holteigasse 6, 8010 Graz, Austria
| | - Yann Hautier
- Ecology and Biodiversity Group, Department of Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Andrew Hector
- Department of Plant Sciences, University of Oxford, Oxford, UK
| | | | - Tim Newbold
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Charlotte L Outhwaite
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Peter B Reich
- Department of Forest Resources, University of Minnesota, St Paul, MN 55108 USA.,Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW 2753, Australia.,Institute for Global Change Biology, University of Michigan, Ann Arbor, MI 48109, USA.,School for Environment and Sustainability, University of Michigan, Ann Arbor, MI 48109, USA
| | - Eric Seabloom
- Department of Ecology, Evolution and Behavior, University of Minnesota, St Paul, MN, USA
| | - Laura Williams
- Department of Forest Resources, University of Minnesota, St Paul, MN 55108 USA
| | - Alexandra Wright
- Biological Sciences Department, California State University Los Angeles, 5151 State University Drive, Los Angeles, CA, USA
| | - Forest Isbell
- Department of Ecology, Evolution and Behavior, University of Minnesota, St Paul, MN, USA
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21
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Golden CD, Koehn JZ, Shepon A, Passarelli S, Free CM, Viana DF, Matthey H, Eurich JG, Gephart JA, Fluet-Chouinard E, Nyboer EA, Lynch AJ, Kjellevold M, Bromage S, Charlebois P, Barange M, Vannuccini S, Cao L, Kleisner KM, Rimm EB, Danaei G, DeSisto C, Kelahan H, Fiorella KJ, Little DC, Allison EH, Fanzo J, Thilsted SH. Aquatic foods to nourish nations. Nature 2021; 598:315-320. [PMID: 34526720 PMCID: PMC10584661 DOI: 10.1038/s41586-021-03917-1] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 08/16/2021] [Indexed: 12/29/2022]
Abstract
Despite contributing to healthy diets for billions of people, aquatic foods are often undervalued as a nutritional solution because their diversity is often reduced to the protein and energy value of a single food type ('seafood' or 'fish')1-4. Here we create a cohesive model that unites terrestrial foods with nearly 3,000 taxa of aquatic foods to understand the future impact of aquatic foods on human nutrition. We project two plausible futures to 2030: a baseline scenario with moderate growth in aquatic animal-source food (AASF) production, and a high-production scenario with a 15-million-tonne increased supply of AASFs over the business-as-usual scenario in 2030, driven largely by investment and innovation in aquaculture production. By comparing changes in AASF consumption between the scenarios, we elucidate geographic and demographic vulnerabilities and estimate health impacts from diet-related causes. Globally, we find that a high-production scenario will decrease AASF prices by 26% and increase their consumption, thereby reducing the consumption of red and processed meats that can lead to diet-related non-communicable diseases5,6 while also preventing approximately 166 million cases of inadequate micronutrient intake. This finding provides a broad evidentiary basis for policy makers and development stakeholders to capitalize on the potential of aquatic foods to reduce food and nutrition insecurity and tackle malnutrition in all its forms.
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Affiliation(s)
- Christopher D Golden
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
- Department of Global Health and Population, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| | - J Zachary Koehn
- Center for Ocean Solutions, Stanford University, Stanford, CA, USA
| | - Alon Shepon
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Department of Environmental Studies, The Porter School of the Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
- The Steinhardt Museum of Natural History, Tel Aviv University, Tel Aviv, Israel
| | - Simone Passarelli
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Christopher M Free
- Bren School of Environmental Science and Management, University of California, Santa Barbara, Santa Barbara, CA, USA
- Marine Sciences Institute, University of California, Santa Barbara, CA, USA
| | - Daniel F Viana
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Betty and Gordon Moore Center for Science, Conservation International, Arlington, VA, USA
| | - Holger Matthey
- Markets and Trade Division, Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Jacob G Eurich
- Marine Sciences Institute, University of California, Santa Barbara, CA, USA
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Jessica A Gephart
- Department of Environmental Science, American University, Washington, DC, USA
| | | | | | - Abigail J Lynch
- U.S. Geological Survey, National Climate Adaptation Science Center, Reston, VA, USA
| | | | - Sabri Bromage
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Pierre Charlebois
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Manuel Barange
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Stefania Vannuccini
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Ling Cao
- School of Oceanography, Shanghai Jiao Tong University, Shanghai, China
| | | | - Eric B Rimm
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Goodarz Danaei
- Department of Global Health and Population, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Camille DeSisto
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Heather Kelahan
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Kathryn J Fiorella
- Department of Population Medicine and Diagnostic Sciences and Master of Public Health Program, Cornell University, Ithaca, NY, USA
| | - David C Little
- Institute of Aquaculture, University of Stirling, Stirling, UK
| | | | - Jessica Fanzo
- Bloomberg School of Public Health and Nitze School of Advanced International Studies, Johns Hopkins University, Washington, DC, USA
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22
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Bernhardt JR, O'Connor MI. Aquatic biodiversity enhances multiple nutritional benefits to humans. Proc Natl Acad Sci U S A 2021; 118:e1917487118. [PMID: 33876740 PMCID: PMC8053940 DOI: 10.1073/pnas.1917487118] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Humanity depends on biodiversity for health, well-being, and a stable environment. As biodiversity change accelerates, we are still discovering the full range of consequences for human health and well-being. Here, we test the hypothesis-derived from biodiversity-ecosystem functioning theory-that species richness and ecological functional diversity allow seafood diets to fulfill multiple nutritional requirements, a condition necessary for human health. We analyzed a newly synthesized dataset of 7,245 observations of nutrient and contaminant concentrations in 801 aquatic animal taxa and found that species with different ecological traits have distinct and complementary micronutrient profiles but little difference in protein content. The same complementarity mechanisms that generate positive biodiversity effects on ecosystem functioning in terrestrial ecosystems also operate in seafood assemblages, allowing more diverse diets to yield increased nutritional benefits independent of total biomass consumed. Notably, nutritional metrics that capture multiple micronutrients and fatty acids essential for human well-being depend more strongly on biodiversity than common ecological measures of function such as productivity, typically reported for grasslands and forests. Furthermore, we found that increasing species richness did not increase the amount of protein in seafood diets and also increased concentrations of toxic metal contaminants in the diet. Seafood-derived micronutrients and fatty acids are important for human health and are a pillar of global food and nutrition security. By drawing upon biodiversity-ecosystem functioning theory, we demonstrate that ecological concepts of biodiversity can deepen our understanding of nature's benefits to people and unite sustainability goals for biodiversity and human well-being.
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Affiliation(s)
- Joey R Bernhardt
- Department of Zoology, Biodiversity Research Centre, University of British Columbia, Vancouver, BC V6T 1Z4, Canada;
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520
| | - Mary I O'Connor
- Department of Zoology, Biodiversity Research Centre, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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