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Nagarajan D, Chen CW, Ponnusamy VK, Dong CD, Lee DJ, Chang JS. Sustainable aquaculture and seafood production using microalgal technology - a circular bioeconomy perspective. CHEMOSPHERE 2024:143502. [PMID: 39384130 DOI: 10.1016/j.chemosphere.2024.143502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 09/12/2024] [Accepted: 10/05/2024] [Indexed: 10/11/2024]
Abstract
The aquaculture industry is under the framework of the food-water-energy nexus due to the extensive use of water and energy. Sustainable practices are required to support the tremendous growth of this sector. Currently, the aquaculture industry is challenged by reliance on capture fisheries for feed, increased use of pharmaceuticals, infectious outbreaks, and solid/liquid waste management. This review posits microalgal technology as a comprehensive solution for the current predicaments in aquaculture in a sustainable way. Microalgae are microscopic, freshwater and marine photosynthetic organisms, capable of carbon mitigation and bioremediation. They are indispensable in aquaculture due to their key role in marine productivity and their position in the marine food chain. Microalgae are nutritious and are currently used as feed in specific sectors of aquaculture. Due to their bioremediation potential, direct application of microalgae in shellfish ponds and in recirculating systems have been adopted to improve water quality and aquatic animal health. The potential of microalgae for integration into various aspects of aquaculture processes, namely hatcheries, feed, and waste management has been critically analyzed. Seamless integration of microalgal technology in aquaculture is feasible, and this review will provide new insights into using microalgal technology for sustainable aquaculture.
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Affiliation(s)
- Dillirani Nagarajan
- Institute of Aquatic Science and Technology, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City 811532, Taiwan
| | - Chiu-Wen Chen
- Institute of Aquatic Science and Technology, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City 811532, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 811532, Taiwan
| | - Vinoth Kumar Ponnusamy
- Department of Medicinal and Applied Chemistry & Research Center for Environmental Medicine, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan
| | - Cheng-Di Dong
- Institute of Aquatic Science and Technology, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City 811532, Taiwan; Department of Medicinal and Applied Chemistry & Research Center for Environmental Medicine, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan.
| | - Duu-Jong Lee
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tang, Hong Kong
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan, ROC; Research Center for Smart and Sustainable Circular Economy, Tunghai University, Tainan 407224, Taiwan, ROC; Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung 407224, Taiwan, ROC; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li 32003, Taiwan.
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2
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Zoli M, Rossi L, Bacenetti J, Aubin J. Upscaling and environmental impact assessment of an innovative integrated multi-trophic aquaponic system. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 369:122327. [PMID: 39241592 DOI: 10.1016/j.jenvman.2024.122327] [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: 10/25/2023] [Revised: 07/29/2024] [Accepted: 08/28/2024] [Indexed: 09/09/2024]
Abstract
The increasing growth of the aquaculture sector has raised significant concerns regarding its environmental footprint, including nutrient discharge, substantial feed consumption, and high energy requirements. In response, innovative approaches such as aquaponics and integrated multi-trophic aquaculture (IMTA) are being developed as potentially more sustainable alternatives. This study aims to evaluate the environmental performance of an innovative Integrated Multi-Trophic Aquaponics system (IMTAcs) using the Life Cycle Assessment (LCA) approach. Given the experimental nature of the pilot plant, two distinct scaled-up scenarios were analysed: one utilizing an alternative feed (IMTAcs AF), and the other employing a commercial feed (IMTAcs CF). The functional unit was defined as 100 kcal and 1 kg of protein produced by the system, with a cradle-to-gate perspective defining system boundaries. Results revealed that IMTAcs AF has a higher global warming impact (0.234 kg CO2 eq./100 kcal) compared to IMTAcs CF (0.207 kg CO2 eq.). In both scenarios, electricity consumption was identified as the primary driver to environmental impact, exceeding 50%, in contrast to conventional systems where feed is the main hotspot. Moreover, while trends in impact categories such as net primary production use and eutrophication is opposite between the scenarios, the latter demonstrated substantial mitigation potential, attributable to the system's inherent nutrient recycling, in comparison with traditional aquaculture systems. While the findings are promising, certain limitations in the study (e.g. utilization of scaled-up data and inherent uncertainties analysed), with the scarcity of existing research, point to the opportunity for further exploration. This includes analysing real-scale implementations whenever feasible and conducting more detailed comparisons with traditional systems.
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Affiliation(s)
- Michele Zoli
- Department of Environmental Science and Policy, Università degli Studi di Milano, via G. Celoria 2, 20133, Milano, Italy
| | - Lorenzo Rossi
- Department of Veterinary Science, Università di Pisa, Viale delle Piagge 2, 56124, Pisa, Italy
| | - Jacopo Bacenetti
- Department of Environmental Science and Policy, Università degli Studi di Milano, via G. Celoria 2, 20133, Milano, Italy.
| | - Joël Aubin
- UMR SAS, INRAE, Institut Agro, Rennes, 35000, France
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3
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Franzén F, Strand Å, Stadmark J, Ingmansson I, Thomas JBE, Söderqvist T, Sinha R, Gröndahl F, Hasselström L. Governance hurdles for expansion of low trophic mariculture production in Sweden. AMBIO 2024; 53:1466-1478. [PMID: 38709449 PMCID: PMC11383906 DOI: 10.1007/s13280-024-02033-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 11/24/2023] [Accepted: 04/23/2024] [Indexed: 05/07/2024]
Abstract
The study examines the governance of low trophic species mariculture (LTM) using Sweden as a case study. LTM, involving species such as seaweeds and mollusks, offers ecosystem services and nutritious foods. Despite its potential to contribute to blue growth and Sustainable Development Goals, LTM development in the EU and OECD countries has stagnated. A framework for mapping governance elements (institutions, structures, and processes) and analyzing governance objective (effective, equitable, responsive, and robust) was combined with surveys addressed to the private entrepreneurs in the sector. Analysis reveals ineffective institutions due to lack of updated legislation and guidance, resulting in ambiguous interpretations. Governance structures include multiple decision-making bodies without a clear coordination agency. Licensing processes were lengthy and costly for the private entrepreneurs, and the outcomes were uncertain. To support Sweden's blue bioeconomy, LTM governance requires policy integration, clearer direction, coordinated decision-making, and mechanisms for conflict resolution and learning.
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Affiliation(s)
- Frida Franzén
- Tyrens AB, Folkungagatan 44, 118 86, Stockholm, Sweden
| | - Åsa Strand
- IVL Svenska Miljöinstitutet/IVL Swedish Environmental Research Institute, Kristineberg 566, 451 78, Fiskebäckskil, Sweden
| | - Johanna Stadmark
- IVL Svenska Miljöinstitutet/IVL Swedish Environmental Research Institute, Box 530 21, 400 14, Gothenburg, Sweden
| | | | - Jean-Baptiste E Thomas
- Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Teknikringen 10B, 100 44, Stockholm, Sweden.
| | - Tore Söderqvist
- Anthesis Enveco AB, Barnhusgatan 4, 111 23, Stockholm, Sweden
- Holmboe & Skarp AB, Norr Källstavägen 9, 148 96, Sorunda, Sweden
| | - Rajib Sinha
- Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Teknikringen 10B, 100 44, Stockholm, Sweden
| | - Fredrik Gröndahl
- Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Teknikringen 10B, 100 44, Stockholm, Sweden
| | - Linus Hasselström
- Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Teknikringen 10B, 100 44, Stockholm, Sweden
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4
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Pandita G, Sharma S, Elsa Oommen I, Madaan N, Bhosale Y, Nagy V, Mukarram Shaikh A, Kovács B. Comprehensive review on the potential of ultrasound for blue food protein extraction, modification and impact on bioactive properties. ULTRASONICS SONOCHEMISTRY 2024; 111:107087. [PMID: 39362033 DOI: 10.1016/j.ultsonch.2024.107087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 09/26/2024] [Accepted: 09/26/2024] [Indexed: 10/05/2024]
Abstract
Food security for the increasing global population is a significant challenge of the current times particularly highlighting the protein deficiencies. Plant-based proteins could be considered as alternate source of the protein. The digestibility and PDCASS value of these proteins are still a concern. Blue proteins, the new approach of utilizing the proteins from aquatic sources could be a possible solution as it contains all the essential amino acids. However, the conjugation of these proteins with fats and glycogen interferes with their techno-functional properties and consequently their applicability. The application of power ultrasound for extraction and modification of these proteins from aquatic sources to break open the cellular structure, increase extractability, alter the protein structure and consequently provide proteins with higher bioavailability and bioactive properties could be a potential approach for their effective utilization into food systems. The current review focuses on the application of power ultrasound when applied as extraction treatment, alters the sulphite and peptide bond and modifies protein to elevated digestibility. The degree of alteration is influenced by intensity, frequency, and exposure time. The extracted proteins will serve as a source of essential amino acids. Furthermore, modification will lead to the development of bioactive peptides with different functional applications. Numerous studies reveal that blue proteins have beneficial impacts on amino acid availability, and subsequently food security with higher PDCAAS values. In many cases, converted peptides give anti-hypertensive, anti-diabetic, and anti-oxidant activity. Therefore, researchers are concentrating on ultrasound-based extraction, modification, and application in food and pharmaceutical systems.
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Affiliation(s)
- Ghumika Pandita
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
| | | | - Irin Elsa Oommen
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
| | - Nishchhal Madaan
- Department of Food Technology and Nutrition, School of Agriculture, Lovely Professional University, Phagwara, Punjab, India
| | - Yuvraj Bhosale
- Research Engineer, Indian Institute of Technology, Kharagpur, India.
| | - Vivien Nagy
- Faculty of Agriculture, Food Science, and Environmental Management, Institute of Food Technology, University of Debrecen, Böszörményi út 138, 4032 Debrecen, Hungary; Doctoral School of Nutrition and Food Sciences, University of Debrecen, Böszörményi út 138, 4032 Debrecen, Hungary.
| | - Ayaz Mukarram Shaikh
- Faculty of Agriculture, Food Science, and Environmental Management, Institute of Food Science, University of Debrecen, Böszörményi út 138, 4032 Debrecen, Hungary; Doctoral School of Nutrition and Food Sciences, University of Debrecen, Böszörményi út 138, 4032 Debrecen, Hungary.
| | - Béla Kovács
- Faculty of Agriculture, Food Science, and Environmental Management, Institute of Food Science, University of Debrecen, Böszörményi út 138, 4032 Debrecen, Hungary; Doctoral School of Nutrition and Food Sciences, University of Debrecen, Böszörményi út 138, 4032 Debrecen, Hungary.
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5
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Farías DR, Ibarra R, Estévez RA, Tlusty MF, Nyberg O, Troell M, Avendaño-Herrera R, Norden W. Towards Sustainable Antibiotic Use in Aquaculture and Antimicrobial Resistance: Participatory Experts' Overview and Recommendations. Antibiotics (Basel) 2024; 13:887. [PMID: 39335060 PMCID: PMC11428492 DOI: 10.3390/antibiotics13090887] [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: 08/02/2024] [Revised: 09/09/2024] [Accepted: 09/11/2024] [Indexed: 09/30/2024] Open
Abstract
Notably, 56 worldwide experts gathered for the Antimicrobial Assessment on Global Aquaculture Production (AGAP) series of workshops to (1) evaluate the current state of knowledge on antimicrobial use and identify existing gaps; (2) formulate strategies to identify ecologically relevant impact indicators and establish thresholds for assessment; (3) identify pivotal socioeconomic factors and effective governance mechanisms essential for implementing monitoring practices in aquaculture and extending them across sectors and countries for aquaculture sustainability; (4) develop pathways to enhance our comprehension between antibiotic use in aquaculture and antimicrobial resistance; and (5) explore potential antibiotic monitoring tools that can be universally adapted and implemented across region and sectors. The main outcomes were a roadmap for establishing investigation priorities on the relevant topics regarding antibiotic use in aquaculture, socioeconomic drivers for using antibiotics and behaviors that need more robust and transparent regulatory frameworks to guide farmers, training on antimicrobial use, and access to veterinarians and extension services agents for education. Overall, the workshop evidenced the power of collaboration in addressing complex global challenges to achieve sustainable aquaculture. Despite diligent efforts, some constraints may have inadvertently narrowed the possibility of having more experts and left some pertinent topics unaddressed, but they are needed in the discussion.
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Affiliation(s)
- Daniela R. Farías
- Monterey Bay Aquarium Global Oceans Conservation Program, 886 Cannery Row, Monterey, CA 93940, USA; (R.I.); (M.F.T.); (W.N.)
| | - Rolando Ibarra
- Monterey Bay Aquarium Global Oceans Conservation Program, 886 Cannery Row, Monterey, CA 93940, USA; (R.I.); (M.F.T.); (W.N.)
| | - Rodrigo A. Estévez
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago 8370003, Chile;
- Instituto Milenio en Socio-Ecología Costera, Santiago 8320000, Chile
| | - Michael F. Tlusty
- Monterey Bay Aquarium Global Oceans Conservation Program, 886 Cannery Row, Monterey, CA 93940, USA; (R.I.); (M.F.T.); (W.N.)
- School for the Environment, University of Massachusetts Boston, Boston, MA 02125, USA
| | - Oskar Nyberg
- Stockholm Resilience Centre, Stockholm University, 106 91 Stockholm, Sweden; (O.N.); (M.T.)
| | - Max Troell
- Stockholm Resilience Centre, Stockholm University, 106 91 Stockholm, Sweden; (O.N.); (M.T.)
- Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences, 104 05 Stockholm, Sweden
| | - Ruben Avendaño-Herrera
- Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Viña del Mar 8370035, Chile;
- Interdisciplinary Center for Aquaculture Research (INCAR), Viña del Mar 2531015, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Universidad Andrés Bello, Quintay 2340000, Chile
| | - Wendy Norden
- Monterey Bay Aquarium Global Oceans Conservation Program, 886 Cannery Row, Monterey, CA 93940, USA; (R.I.); (M.F.T.); (W.N.)
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6
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Gephart JA, Agrawal Bejarano R, Gorospe K, Godwin A, Golden CD, Naylor RL, Nash KL, Pace ML, Troell M. Globalization of wild capture and farmed aquatic foods. Nat Commun 2024; 15:8026. [PMID: 39271651 PMCID: PMC11399132 DOI: 10.1038/s41467-024-51965-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 08/22/2024] [Indexed: 09/15/2024] Open
Abstract
Aquatic foods are highly traded, with nearly 60 million tonnes exported in 2020, representing 11% of global agriculture trade by value. Despite the vast scale, basic characteristics of aquatic food trade, including species, origin, and farmed vs wild sourcing, are largely unknown due to the reporting of trade data. Consequently, we have a coarse picture of aquatic food trade and consumption patterns. Here, we present results from a database on species trade that aligns production, conversion factors, and trade to compute apparent consumption for all farmed and wild aquatic foods from 1996 to 2020. Over this period, aquatic foods became increasingly globalized, with the share of production exported increasing by 40%. Importantly, trends differ across aquatic food sectors. Global consumption also increased by 19.4% despite declining marine capture consumption, and some regions became increasingly reliant on foreign-sourced aquatic foods. To identify sustainable diet opportunities among aquatic foods, our findings, and underlying database enable a greater understanding of the role of trade in rapidly evolving aquatic food systems.
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Affiliation(s)
- Jessica A Gephart
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA.
| | - Rahul Agrawal Bejarano
- Department of Environmental Science, American University, Washington, DC, USA
- School of Environment and Sustainability, University of Michigan, Ann Arbor, MI, USA
| | - Kelvin Gorospe
- Department of Environmental Science, American University, Washington, DC, USA
| | - Alex Godwin
- Department of Computer Science, American University, Washington, DC, USA
| | - Christopher D Golden
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Rosamond L Naylor
- Department of Global Environmental Policy and Center on Food Security and Environment, Stanford University, Stanford, CA, USA
| | - Kirsty L Nash
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS, Australia
| | - Michael L Pace
- Department of Environmental Sciences, University of Virginia, Charlottesville, VA, USA
| | - Max Troell
- Beijer Institute of Ecological Economics, The Royal Swedish Academy of Science, Stockholm, Sweden
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
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7
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Hou J, Lu Y, Chen Q, Liao X, Wu X, Sang K, White JC, Gardea-Torresdey JL, Xu J, Zhang J, Yang K, Zhu L, Lin D. Multifunctional biomolecular corona-inspired nanoremediation of antibiotic residues. Proc Natl Acad Sci U S A 2024; 121:e2409955121. [PMID: 39190351 PMCID: PMC11388419 DOI: 10.1073/pnas.2409955121] [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: 05/18/2024] [Accepted: 07/23/2024] [Indexed: 08/28/2024] Open
Abstract
Facing complex and variable emerging antibiotic pollutants, the traditional development of functional materials is a "trial-and-error" process based on physicochemical principles, where laborious steps and long timescales make it difficult to accelerate technical breakthroughs. Notably, natural biomolecular coronas derived from highly tolerant organisms under significant contamination scenarios can be used in conjunction with nanotechnology to tackling emerging contaminants of concern. Here, super worms (Tubifex tubifex) with high pollutant tolerance were integrated with nano-zero valent iron (nZVI) to effectively reduce the content of 17 antibiotics in wastewater within 7 d. Inspired by the synergistic remediation, nZVI-augmented worms were constructed as biological nanocomposites. Neither nZVI (0.3 to 3 g/L) nor worms (104 to 105 per liter) alone efficiently degraded florfenicol (FF, as a representative antibiotic), while their composite removed 87% of FF (3 μmol/L). Under antibiotic exposure, biomolecules secreted by worms formed a corona on and modified the nZVI particle surface, enabling the nano-bio interface greater functionality, including responsiveness, enrichment, and reduction. Mechanistically, FF exposure activated glucose-alanine cycle pathways that synthesize organic acids and amines as major metabolites, which were assembled into vesicles and secreted, thereby interacting with nZVI in a biologically response design strategy. Lactic acid and urea formed hydrogen bonds with FF, enriched analyte presence at the heterogeneous interface. Succinic and lactic acids corroded the nZVI passivation layer and promoted electron transfer through surface conjugation. This unique strategy highlights biomolecular coronas as a complex resource to augment nano-enabled technologies and will provide shortcuts for rational manipulation of nanomaterial surfaces with coordinated multifunctionalities.
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Affiliation(s)
- Jie Hou
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang University-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311200, China
| | - Yuqi Lu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Qiqi Chen
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Xinyi Liao
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Xinyue Wu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Kaijian Sang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT 06511
| | | | - Jiang Xu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Jianying Zhang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
- National Demonstration Center for Experimental Environment and Resources Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Kun Yang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang University-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311200, China
| | - Lizhong Zhu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Daohui Lin
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
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8
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Jostock C, Luick M, Jebb SA, Pechey R. Changing the availability and positioning of more vs. less environmentally sustainable products: A randomised controlled trial in an online experimental supermarket. Appetite 2024; 200:107579. [PMID: 38914261 DOI: 10.1016/j.appet.2024.107579] [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: 10/02/2023] [Revised: 06/20/2024] [Accepted: 06/21/2024] [Indexed: 06/26/2024]
Abstract
Food purchasing behaviours are shaped by the choices available to shoppers and the way they are offered for sale. This study tested whether prominent positioning of more sustainable food items online and increasing their relative availability might reduce the environmental impact of foods selected in a 2x2 (availability x position) factorial randomised controlled trial. Participants (n = 1179) selected items in a shopping task in an experimental online supermarket. The availability intervention added lower-impact products to the regular range. The positioning intervention biased product order to give prominence to lower-impact products. The primary outcome was the environmental impact score (ranging from 1 "least impact" to 5 "most impact", of each item in shopping baskets) analysed using Welch's ANOVA. Secondary outcomes included interactions (analysed via linear regression) by gender, age group, education, income and meat consumption and we assessed intervention acceptability (using different frames) in a post-experiment questionnaire. Compared to control (mean = 21.6), mean eco quintile score was significantly reduced when availability & order was altered (-2.30; 95%CI: 3.04; -1.56) and when order only was changed (-1.67; 95%CI: 2.42; -0.92). No significant difference between availability only (-0.02; 95%CI: 0.73; 0.69) and control was found. There were no significant interactions between interventions or by demographic characteristics. Both interventions were acceptable under certain frames (positioning emphasising lower-impact products: 70.3% support; increasing lower-impact items: 74.3% support). Prominent positioning of more sustainable products may be an effective strategy to encourage more sustainable food purchasing. Increasing availability of more sustainable products alone did not significantly alter the environment impact of products selected.
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Affiliation(s)
- Cinja Jostock
- All authors are affiliated with the Nuffield Department of Primary Care Health Sciences, University of Oxford, United Kingdom.
| | - Madison Luick
- All authors are affiliated with the Nuffield Department of Primary Care Health Sciences, University of Oxford, United Kingdom
| | - Susan A Jebb
- All authors are affiliated with the Nuffield Department of Primary Care Health Sciences, University of Oxford, United Kingdom
| | - Rachel Pechey
- All authors are affiliated with the Nuffield Department of Primary Care Health Sciences, University of Oxford, United Kingdom
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9
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Xu H, Wu T, Budhathoki M, Fang DS, Zhang W, Wang X. Consumption Patterns and Willingness to Pay for Sustainable Aquatic Food in China. Foods 2024; 13:2435. [PMID: 39123626 PMCID: PMC11312269 DOI: 10.3390/foods13152435] [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: 07/14/2024] [Revised: 07/28/2024] [Accepted: 07/28/2024] [Indexed: 08/12/2024] Open
Abstract
China, as the world's largest producer, trader, and consumer of aquatic foods, lacks comprehensive research on consumption patterns and willingness to pay for sustainable aquatic food. This study addressed this gap through an online survey of 3403 participants across Chinese provinces. A majority of consumers (34.7% of the participants) consume aquatic food twice or more per week, mainly from traditional markets (26%). Most prefer fresh or live products (76%), with 42% seeing no difference between farmed and wild options. Consumption is higher among older, affluent, urban, and coastal residents. Crustaceans, especially shrimp, are frequently consumed species, with growing interest in luxury species like salmon and abalone. Taste and quality emerge as the primary factors motivating consumer choices in aquatic food purchases. Food safety is the primary concern, followed by environmental impact. Notably, 92.4% of participants would pay extra for certified products. Factors influencing a higher willingness to pay include higher income, inland residence, price sensitivity, origin consciousness, and concerns about food safety and the environment. The findings highlight that China's aquatic food industry and consumption can become more sustainable by aligning with consumer preferences for high-quality and diverse aquatic food through both production and import, while also addressing concerns related to food safety and environmental impact. This research provides valuable insights into China's rapidly transforming aquatic food market landscape, offering implications for industry innovation and the promotion of sustainable consumption patterns.
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Affiliation(s)
- Hao Xu
- China-ASEAN “The Belt and Road” Joint Laboratory of Mariculture Technology, Shanghai Ocean University, Shanghai 201306, China; (H.X.); (T.W.)
- Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China
| | - Tianqi Wu
- China-ASEAN “The Belt and Road” Joint Laboratory of Mariculture Technology, Shanghai Ocean University, Shanghai 201306, China; (H.X.); (T.W.)
- Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China
| | - Mausam Budhathoki
- Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, UK;
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark
| | - Dingxi Safari Fang
- Emmett Interdisciplinary Program in Environment and Resource, Stanford University, Stanford, CA 94305, USA
| | - Wenbo Zhang
- China-ASEAN “The Belt and Road” Joint Laboratory of Mariculture Technology, Shanghai Ocean University, Shanghai 201306, China; (H.X.); (T.W.)
- Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai 201306, China
| | - Xin Wang
- Best Aquaculture Practices (BAP), Global Seafood Alliance (GSA), Portsmouth, NH 03801, USA
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10
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Liu R, Ding Y, Jing F, Chen Z, Su C, Pan L. Effects of dietary glycerol monolaurate on growth and digestive performance, lipid metabolism, immune defense and gut microbiota of shrimp (Penaeus vannamei). FISH & SHELLFISH IMMUNOLOGY 2024; 151:109666. [PMID: 38838839 DOI: 10.1016/j.fsi.2024.109666] [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: 03/09/2024] [Revised: 05/16/2024] [Accepted: 05/31/2024] [Indexed: 06/07/2024]
Abstract
The advancement of the Penaeus vannamei industry in a sustainable manner necessitates the creation of eco-friendly and exceptionally effective feed additives. To achieve this, 720 similarly-sized juvenile shrimp (0.88 ± 0.02 g) were randomly divided into four groups in this study, with each group consisting of three replicates, each tank (400 L) containing 60 shrimp. Four experimental diets were formulated by adding 0, 500, 1000, and 1500 mg kg-1 glycerol monolaurate (GML) to the basal diet, and the feeding trial lasted for 42 days. Subsequently, a 72-h White Spot Syndrome Virus (WSSV) challenge test was conducted. Polynomial orthogonal contrasts analysis revealed that with the increase in the concentration of GML, those indicators related to growth, metabolism and immunity, exhibit linear or quadratic correlations (P < 0.05). The results indicate that the GML groups exhibited a significant improvement in the shrimp weight gain rate, specific growth rate, and a reduction in the feed conversion ratio (P < 0.05). Furthermore, the GML groups promoted the lipase activity and reduced lipid content of the shrimp, augmented the expression of triglyceride and fatty acid decomposition-related genes and lowered the levels of plasma triglycerides (P < 0.05). GML can also enhanced the humoral immunity of the shrimp by activating the Toll-like receptor and Immune deficiency immune pathways, improved the phagocytic capacity and antibacterial ability of shrimp hemocytes. The challenge test revealed that GML significantly reduced the mortality of the shrimp compared to control group. The 16S rRNA sequencing indicates that the GML group can increases the abundance of beneficial bacteria. However, 1500 mg kg-1 GML adversely affected the stability of the intestinal microbiota, significantly upregulating intestinal antimicrobial peptide-related genes and tumor necrosis factor-alpha levels (P < 0.05). In summary, 1000 mg kg-1 GML was proven to enhance the growth performance, lipid absorption and metabolism, humoral immune response, and gut microbiota condition of P. vannamei, with no negative physiological effects.
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Affiliation(s)
- Renzhi Liu
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Yanjun Ding
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Futao Jing
- Shandong Fisheries Development and Resources Conservation Center, Jinan, 250013, China
| | - Zhifei Chen
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Chen Su
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
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11
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Chang J, Liu A, Zhang J, Chu L, Hou X, Huang X, Xing Q, Bao Z. Transcriptomic analysis reveals PC4's participation in thermotolerance of scallop Argopecten irradians irradians by regulating myocardial bioelectric activity. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2024; 52:101295. [PMID: 39053238 DOI: 10.1016/j.cbd.2024.101295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 07/02/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
Rising ocean temperatures due to global warming pose a significant threat to the bay scallop aquaculture industry. Understanding the mechanisms of thermotolerance in bay scallops is crucial for developing thermotolerant breeds. Our prior research identified Arg0230340.1, part of the positive cofactor 4 (PC4) family, as a key gene associated with the thermotolerance index Arrhenius break temperature (ABT) in bay scallops. Further validation through RNA interference (RNAi) reinforced PC4's role in thermotolerance, offering a solid basis for investigating thermal response mechanisms in these scallops. In this study, we performed a comparative transcriptomic analysis on the temperature-sensitive hearts of bay scallops after siRNA-mediated RNAi targeting Arg0230340.1, to delve into the detailed molecular mechanism of PC4's participation in thermotolerance regulation. The analysis revealed that silencing Arg0230340.1 significantly reduced the expression of mitochondrial tRNA and rRNA, potentially affecting mitochondrial function and the heart's blood supply capacity. Conversely, the up-regulation of genes involved in energy metabolism, RNA polymerase II (RNAPII)-mediated basal transcription, and aminoacyl-tRNA synthesis pathways points to an intrinsic protective response, providing energy and substrates for damage repair and maintenance of essential functions under stress. GO and KEGG enrichment analyses indicated that the up-regulated genes were primarily associated with energy metabolism and spliceosome pathways, likely contributing to myocardial remodeling post-Arg0230340.1 knockdown. Down-regulated genes were enriched in ion channel pathways, particularly those for Na+, K+, and Ca2+ channels, whose dysfunction could disrupt normal myocardial bioelectric activity. The impaired cardiac performance resulting from RNAi targeting Arg0230340.1 reduced the cardiac workload in scallop hearts, thus affecting myocardial oxygen consumption and thermotolerance. We propose a hypothetical mechanism where PC4 down-regulation impairs cardiac bioelectric activity, leading to decreased thermotolerance in bay scallops, providing theoretical guidance for breeding thermotolerant scallop varieties and developing strategies for sustainable aquaculture in the face of long-term environmental changes.
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Affiliation(s)
- Jiaxi Chang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Ancheng Liu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Junhao Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Longfei Chu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xiujiang Hou
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xiaoting Huang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Marine Science and Technology Center, Qingdao 266237, China
| | - Qiang Xing
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Marine Science and Technology Center, Qingdao 266237, China.
| | - Zhenmin Bao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Marine Science and Technology Center, Qingdao 266237, China
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12
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Kuempel CD, Arnett E, Klein CJ. Quantifying global redundant fisheries trade to streamline seafood supply chains. PLoS One 2024; 19:e0305779. [PMID: 38985725 PMCID: PMC11236095 DOI: 10.1371/journal.pone.0305779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 06/04/2024] [Indexed: 07/12/2024] Open
Abstract
Seafood plays an important role in sustainably feeding the world and is one of the most traded food products globally. However sustainability improvements are often focused on its production (e.g., aquaculture, fishing) rather than trade. Here, we quantify the magnitude and extent of global 'redundant two-way' seafood trade-the exchange of the same quantity of the same taxonomic species between two countries-to examine its prevalence and potential implications across the seafood supply chain. We focused on wild-caught seafood trade and found that redundant two-way trade has increased by 43%, between 2000 and 2015, making up 3.2% (7.7 Mt) of global seafood trade during that period. Although most countries were involved in redundant two-way seafood trade (111 of 212 analyzed), the majority occurred between five trade partners: Canada and the United States (15%), Germany and the Netherlands (11.8%); Denmark and Sweden (10.6%); Germany and Denmark (7.1%); and France and Norway (7%). Nearly 50% of redundant trade is made up of just four species including Atlantic herring, Atlantic cod, Skipjack tuna and Atlantic mackerel. While deficiencies in global seafood trade data mask seasonal and product heterogeneity, redundant trade could have implications for meeting conservation and sustainable development goals. Future research should build upon these findings to explore specific environmental, economic, and social implications associated with redundant two-way trade to benefit producers and consumers within the seafood supply chain.
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Affiliation(s)
- Caitlin D Kuempel
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Nathan, Australia
| | - Emma Arnett
- School of Environment, Centre for Biodiversity and Conservation Science, University of Queensland, Queensland, Australia
| | - Carissa J Klein
- School of Environment, Centre for Biodiversity and Conservation Science, University of Queensland, Queensland, Australia
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Shen L, Wu L, Wei W, Yang Y, MacLeod MJ, Lin J, Song G, Yuan J, Yang P, Wu L, Li M, Zhuang M. Marine aquaculture can deliver 40% lower carbon footprints than freshwater aquaculture based on feed, energy and biogeochemical cycles. NATURE FOOD 2024; 5:615-624. [PMID: 38907010 DOI: 10.1038/s43016-024-01004-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/17/2024] [Indexed: 06/23/2024]
Abstract
Freshwater aquaculture is an increasingly important source of blue foods but produces substantial methane and nitrous oxide emissions. Marine aquaculture, also known as mariculture, is a smaller sector with a large growth potential, but its climate impacts are challenging to accurately quantify. Here we assess the greenhouse gas emissions from mariculture's aquatic environment in global potentially suitable areas at 10 km resolution on the basis of marine biogeochemical cycles, greenhouse gas measurements from research cruises and satellite-observed net primary productivity. Mariculture's aquatic emissions intensities are estimated to be 1-6 g CH4 kg-1 carcass weight and 0.05-0.2 g N2O kg-1 carcass weight, >98% and >80% lower than freshwater systems. Using a life-cycle assessment approach, we show that mariculture's carbon footprints are ~40% lower than those of freshwater aquaculture based on feed, energy use and the aquatic environment emissions. Adoption of mariculture alongside freshwater aquaculture production could offer considerable climate benefits to meet future dietary protein and nutritional needs.
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Affiliation(s)
- Lu Shen
- Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China.
- Institute of Carbon Neutrality, Peking University, Beijing, China.
| | - Lidong Wu
- Chinese Academy of Fishery Sciences, Beijing, China
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Wei Wei
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Yi Yang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China
| | - Michael J MacLeod
- Department of Rural Economy, Environment and Society, Scotland's Rural College, Edinburgh, UK
| | - Jintai Lin
- Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China
| | - Guodong Song
- Frontiers Science Center for Deep Ocean Multispheres and Earth System and Key Laboratory of Marine Chemistry Theory and Technology (Ministry of Education), Ocean University of China, Qingdao, China
| | - Junji Yuan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Ping Yang
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Lin Wu
- Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China
| | - Mingwei Li
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing, China
| | - Minghao Zhuang
- State Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing, China.
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14
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Arévalo-Martínez DL. Offshore aquaculture greenhouse gas emissions based on ocean net primary productivity. NATURE FOOD 2024; 5:548-549. [PMID: 38907009 DOI: 10.1038/s43016-024-01005-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/23/2024]
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15
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Bullen CD, Driscoll J, Burt J, Stephens T, Hessing-Lewis M, Gregr EJ. The potential climate benefits of seaweed farming in temperate waters. Sci Rep 2024; 14:15021. [PMID: 38951559 PMCID: PMC11217401 DOI: 10.1038/s41598-024-65408-3] [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: 06/15/2023] [Accepted: 06/19/2024] [Indexed: 07/03/2024] Open
Abstract
Seaweed farming is widely promoted as an approach to mitigating climate change despite limited data on carbon removal pathways and uncertainty around benefits and risks at operational scales. We explored the feasibility of climate change mitigation from seaweed farming by constructing five scenarios spanning a range of industry development in coastal British Columbia, Canada, a temperate region identified as highly suitable for seaweed farming. Depending on growth rates and the fate of farmed seaweed, our scenarios sequestered or avoided between 0.20 and 8.2 Tg CO2e year-1, equivalent to 0.3% and 13% of annual greenhouse gas emissions in BC, respectively. Realisation of climate benefits required seaweed-based products to replace existing, more emissions-intensive products, as marine sequestration was relatively inefficient. Such products were also key to reducing the monetary cost of climate benefits, with product values exceeding production costs in only one of the scenarios we examined. However, model estimates have large uncertainties dominated by seaweed production and emissions avoided, making these key priorities for future research. Our results show that seaweed farming could make an economically feasible contribute to Canada's climate goals if markets for value-added seaweed based products are developed. Moreover, our model demonstrates the possibility for farmers, regulators, and researchers to accurately quantify the climate benefits of seaweed farming in their regional contexts.
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Affiliation(s)
- Cameron D Bullen
- SciTech Environmental Consulting, 2136 Napier Street, Vancouver, BC, Canada, V5L 2N9
| | - John Driscoll
- Institute for Resources, Environment and Sustainability, University of British Columbia, Vancouver, BC, Canada
| | - Jenn Burt
- Nature United, North Vancouver, BC, Canada
| | - Tiffany Stephens
- College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Juneau, AK, USA
| | - Margot Hessing-Lewis
- Hakai Institute, Campbell River, BC, Canada
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC, Canada
| | - Edward J Gregr
- SciTech Environmental Consulting, 2136 Napier Street, Vancouver, BC, Canada, V5L 2N9.
- Institute for Resources, Environment and Sustainability, University of British Columbia, Vancouver, BC, Canada.
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16
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Garlock TM, Asche F, Anderson JL, Eggert H, Anderson TM, Che B, Chávez CA, Chu J, Chukwuone N, Dey MM, Fitzsimmons K, Flores J, Guillen J, Kumar G, Liu L, Llorente I, Nguyen L, Nielsen R, Pincinato RBM, Sudhakaran PO, Tibesigwa B, Tveteras R. Environmental, economic, and social sustainability in aquaculture: the aquaculture performance indicators. Nat Commun 2024; 15:5274. [PMID: 38902254 PMCID: PMC11190207 DOI: 10.1038/s41467-024-49556-8] [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: 06/18/2023] [Accepted: 06/10/2024] [Indexed: 06/22/2024] Open
Abstract
Aquaculture is a rapidly growing food production technology, but there are significant concerns related to its environmental impact and adverse social effects. We examine aquaculture outcomes in a three pillars of sustainability framework by analyzing data collected using the Aquaculture Performance Indicators. Using this approach, comparable data has been collected for 57 aquaculture systems worldwide on 88 metrics that measure social, economic, or environmental outcomes. We first examine the relationships among the three pillars of sustainability and then analyze performance in the three pillars by technology and species. The results show that economic, social, and environmental outcomes are, on average, mutually reinforced in global aquaculture systems. However, the analysis also shows significant variation in the degree of sustainability in different aquaculture systems, and weak performance of some production systems in some dimensions provides opportunity for innovative policy measures and investment to further align sustainability objectives.
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Affiliation(s)
- Taryn M Garlock
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Frank Asche
- School of Forest, Fisheries and Geomatics Science, University of Florida, Gainesville, FL, 32611, USA.
- Department of Safety, Economics and Planning, University of Stavanger, 4036, Stavanger, Norway.
| | - James L Anderson
- Food and Resource Economics Department, University of Florida, Gainesville, FL, 32611, USA
| | - Håkan Eggert
- Department of Economics, University of Gothenburg, 405 30, Göteborg, Sweden
| | - Thomas M Anderson
- Food and Resource Economics Department, University of Florida, Gainesville, FL, 32611, USA
- Department of Agricultural and Resource Economics, University of California at Davis, Davis, CA, 95616, USA
| | - Bin Che
- College of Economics and Management, Shanghai Ocean University, Shanghai, 201306, China
| | - Carlos A Chávez
- Facultad de Economía y Negocios, Universidad de Talca and Interdisciplinary Center for Aquaculture Research, Talca, Chile
| | - Jingjie Chu
- East Asia-Environment, Natural Resources and Blue Economy, The World Bank, Washington, DC, 20433, USA
| | - Nnaemeka Chukwuone
- Department of Agricultural Economics and Resource and Environmental Policy Research Centre, Environment for Development Nigeria, University of Nigeria Nsukka, Nsukka, Enugu State, 40001, Nigeria
| | - Madan M Dey
- Department of Agricultural Sciences, Texas State University, San Marcos, TX, 78666, USA
| | - Kevin Fitzsimmons
- Environmental Science, University of Arizona, Tucson, AZ, 85721, USA
| | - Jimely Flores
- Climate Resilient Fisheries and Oceans Program, Environmental Defense Fund, 1100, Quezon City, Philippines
| | - Jordi Guillen
- Ocean and water unit, European Commission Joint Research Centre, 21027, Ispra, Italy
| | - Ganesh Kumar
- Thad Cochran National Warmwater Aquaculture Center, Delta Research and Extension Center, Mississippi State University, Mississippi, 38756, USA
| | - Lijun Liu
- Food and Resource Economics Department, University of Florida, Gainesville, FL, 32611, USA
| | - Ignacio Llorente
- Business Administration Department, Universidad de Cantabria, 39005, Santander, Spain
| | - Ly Nguyen
- College of Agriculture and Food Sciences, Florida A&M University, Tallahassee, FL, 32312, USA
| | - Rasmus Nielsen
- Department of Food and Resource Economics, University of Copenhagen, 1958, Frederiksberg C, Denmark
| | - Ruth B M Pincinato
- Department of Safety, Economics and Planning, University of Stavanger, 4036, Stavanger, Norway
| | | | | | - Ragnar Tveteras
- UiS School of Business and Law, University of Stavanger, 4036, Stavanger, Norway
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17
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Liu H, Yu S, Liu B, Xiang S, Jiang M, Yang F, Tan W, Zhou J, Xiao M, Li X, Richardson JJ, Lin W, Zhou J. Space-Efficient 3D Microalgae Farming with Optimized Resource Utilization for Regenerative Food. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401172. [PMID: 38483347 DOI: 10.1002/adma.202401172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/07/2024] [Indexed: 03/23/2024]
Abstract
Photosynthetic microalgae produce valuable metabolites and are a source of sustainable food that supports life without compromising arable land. However, the light self-shading, excessive water supply, and insufficient space utilization in microalgae farming have limited its potential in the inland areas most in need of regenerative food solutions. Herein, this work develops a 3D polysaccharide-based hydrogel scaffold for vertically farming microalgae without needing liquid media. This liquid-free strategy is compatible with diverse microalgal species and enables the design of living microalgal frameworks with customizable architectures that enhance light and water utilization. This approach significantly increases microalgae yield per unit water consumption, with an 8.8-fold increase compared to traditional methods. Furthermore, the dehydrated hydrogels demonstrate a reduced size and weight (≈70% reduction), but readily recover their vitality upon rehydration. Importantly, valuable natural products can be produced in this system including proteins, carbohydrates, lipids, and carotenoids. This study streamlines microalgae regenerative farming for low-carbon biomanufacturing by minimizing light self-shading, relieving water supply, and reducing physical footprints, and democratizing access to efficient aquatic food production.
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Affiliation(s)
- Hai Liu
- College of Biomass Science and Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065, China
| | - Siqin Yu
- Department of Energy Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Bin Liu
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Shuhong Xiang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Minwen Jiang
- College of Biomass Science and Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065, China
| | - Fan Yang
- College of Biomass Science and Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065, China
| | - Weiwei Tan
- College of Biomass Science and Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065, China
| | - Jianfei Zhou
- College of Biomass Science and Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065, China
- Research Institute of Leather and Footwear Industry of Wenzhou, Wenzhou, 325000, China
| | - Ming Xiao
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Xiaojie Li
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Joseph J Richardson
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Wei Lin
- College of Biomass Science and Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065, China
| | - Jiajing Zhou
- College of Biomass Science and Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065, China
- Research Institute of Leather and Footwear Industry of Wenzhou, Wenzhou, 325000, China
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18
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Li W, Li X, Song C, Gao G. Carbon removal, sequestration and release by mariculture in an important aquaculture area, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172272. [PMID: 38583626 DOI: 10.1016/j.scitotenv.2024.172272] [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: 02/04/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
To combat with climate change, most countries have set carbon neutrality target. However, our understanding on carbon removal, release and sequestration by mariculture remains unclear. Here, carbon removal, release and sequestration by maricultured seaweeds, shellfish and fish in Shandong Province during 2003-2022 were assessed using a comprehensive method that considers the processes of biological metabolism, seawater chemistry and carbon footprint. Saccharina japonica productivity has been largely enhanced since 2014, resulting in increased production and CO2 removal and sequestration. Seaweeds removed 172 Gg C and sequestered 62 Gg C in 2022. CO2 removal and release by shellfish demonstrated a slow increase trend, ranging from 231 to 374 Gg C yr-1 and 897 to 1438 Gg C yr-1 during 2003-2022, respectively. Contrary to seaweed and shellfish, maricultured fish added CO2 to seawater due to the use of feeds. The added CO2 by fish culture achieved the peak of 60 Gg C in 2011 and decreased to 25 Gg C in 2022. Most of this added CO2 was released to atmosphere by microbial mineralization and it was in the range of 21-52 Gg C yr-1 during 2003-2022. After summing up the contribution of seaweeds, shellfish and fish, both total CO2 removal (from 110 to 259 Gg C yr-1) and total CO2 release (from 929 to 1429 Gg C yr-1) increased remarkably during the past 20 years. To neutralize CO2 release by shellfish and fish, Pyropia yezoensis needs the largest culture area (1.65 ± 0.15 × 106 ha) while Gracilariopsis lemaneiformis requires the smallest area (0.11 ± 0.03 × 106 ha). In addition, there are enough available areas for culturing G. lemaneiformis, Ulva prolifera and Sargassum fusifarme to neutralize total CO2 emission in Shandong Province. This study elucidates carbon removal, release and sequestration capacities of mariculture and indicates that seaweed culture has a tremendous potential to achieve carbon neutrality target in Shandong.
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Affiliation(s)
- Wei Li
- College of Life and Environmental Sciences, Huangshan University, Huangshan 245021, China; State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
| | - Xu Li
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
| | - Chi Song
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
| | - Guang Gao
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China.
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19
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Wong A, Frommel AY, Sumaila UR, Cheung WWL. A traits-based approach to assess aquaculture's contributions to food, climate change, and biodiversity goals. NPJ OCEAN SUSTAINABILITY 2024; 3:30. [PMID: 38828386 PMCID: PMC11142914 DOI: 10.1038/s44183-024-00065-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 04/29/2024] [Indexed: 06/05/2024]
Abstract
Aquaculture has the potential to support a sustainable and equitable food system in line with the United Nations Sustainable Development Goals (SDG) on food security, climate change, and biodiversity (FCB). Biological diversity amongst aquaculture organisms can drive diverse contributions to such goals. Existing studies have assessed the performance of a limited number of taxa in the general context of improving aquaculture production, but few explicitly consider the biological attributes of farmed aquatic taxa at the FCB nexus. Through a systematic literature review, we identify key traits associated with FCB and evaluate the potential of aquaculture to contribute to FCB goals using a fuzzy logic model. The majority of identified traits are associated with food security, and two-thirds of traits linked with food security are also associated with climate change or biodiversity, revealing potential co-benefits of optimizing a single trait. Correlations between FCB indices further suggest that challenges and opportunities in aquaculture are intertwined across FCB goals, but low mean FCB scores suggest that the focus of aquaculture research and development on food production is insufficient to address food security, much less climate or biodiversity issues. As expected, production-maximizing traits (absolute fecundity, the von Bertalanffy growth function coefficient K, macronutrient density, maximum size, and trophic level as a proxy for feed efficiency) highly influence a species' FCB potential, but so do species preferences for environmental conditions (tolerance to phosphates, nitrates, and pH levels, as well as latitudinal and geographic ranges). Many highly farmed species that are typically associated with food security, especially finfish, score poorly for food, climate, and biodiversity potential. Algae and mollusc species tend to perform well across FCB indices, revealing the importance of non-fish species in achieving FCB goals and potential synergies in integrated multi-trophic aquaculture systems. Overall, this study provides decision-makers with a biologically informed assessment of desirable aquaculture traits and species while illuminating possible strategies to increase support for FCB goals. Our findings can be used as a foundation for studying the socio-economic opportunities and barriers for aquaculture transitions to develop equitable pathways toward FCB-positive aquaculture across nuanced regional contexts.
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Affiliation(s)
- Aleah Wong
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, BC Canada
| | - Andrea Y. Frommel
- Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC Canada
| | - U. Rashid Sumaila
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, BC Canada
| | - William W. L. Cheung
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, BC Canada
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20
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Yadav NK, Patel AB, Singh SK, Mehta NK, Anand V, Lal J, Dekari D, Devi NC. Climate change effects on aquaculture production and its sustainable management through climate-resilient adaptation strategies: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:31731-31751. [PMID: 38652188 DOI: 10.1007/s11356-024-33397-5] [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: 08/01/2023] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Aquaculture witnessed a remarkable growth as one of the fastest-expanding sector in the food production industry; however, it faces serious threat from the unavoidable impacts of climate change. Understanding this threat, the present review explores the consequences of climate change on aquaculture production and provides need based strategies for its sustainable management, with a particular emphasis on climate-resilient approaches. The study examines the multi-dimensional impacts of climate change on aquaculture which includes the shifts in water temperature, sea-level rise, ocean acidification, harmful algal blooms, extreme weather events, and alterations in ecological dynamics. The review subsequently investigates innovative scientific interventions and climate-resilient aquaculture strategies aimed at strengthening the adaptive capacity of aquaculture practices. Some widely established solutions include selective breeding, species diversification, incorporation of ecosystem-based management practices, and the implementation of sustainable and advanced aquaculture systems (aquaponics and recirculating aquaculture systems (RAS). These strategies work towards fortifying aquaculture systems against climate-induced disturbances, thereby mitigating risks and ensuring sustained production. This review provides a detailed insight to the ongoing discourse on climate-resilient aquaculture, emphasizing an immediate need for prudent measures to secure the future sustainability of fish food production sector.
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Affiliation(s)
- Nitesh Kumar Yadav
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India.
| | - Arun Bhai Patel
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
| | - Soibam Khogen Singh
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
- Krishi Vigyan Kendra, ICAR Research Complex for NEH Region, Imphal, Manipur, 795142, India
| | - Naresh Kumar Mehta
- Department of Fish Processing Technology, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
| | - Vishwajeet Anand
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
- ICAR - Central Institute of Fisheries Education, Mumbai, 400061, Maharashtra, India
| | - Jham Lal
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
| | - Debojit Dekari
- Department of Aquatic Health and Environment, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
| | - Ng Chinglembi Devi
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
- Department of Aquaculture, Dr. M.G.R Fisheries College and Research Institute, Thiruvallur District, Ponneri, 601 204, Tamil Nadu, India
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Verkuijl C, Dutkiewicz J, Scherer L, Behrens P, Lazarus M, Hötzel MJ, Nordquist R, Hayek M. FAO's 1.5 °C roadmap for food systems falls short. NATURE FOOD 2024; 5:264-266. [PMID: 38499746 DOI: 10.1038/s43016-024-00950-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Affiliation(s)
- Cleo Verkuijl
- Stockholm Environment Institute US, Somerville, MA, USA.
- Brooks McCormick Jr. Animal Law and Policy Program, Harvard Law School, Cambridge, MA, USA.
| | | | - Laura Scherer
- Institute of Environmental Sciences (CML), Leiden University, Leiden, the Netherlands
| | - Paul Behrens
- Institute of Environmental Sciences (CML), Leiden University, Leiden, the Netherlands
| | | | | | - Rebecca Nordquist
- Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Matthew Hayek
- Department of Environmental Studies, New York University, New York, NY, USA
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22
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Wang R, Feng L, Xu Q, Jiang L, Liu Y, Xia L, Zhu YG, Liu B, Zhuang M, Yang Y. Sustainable Blue Foods from Rice-Animal Coculture Systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5310-5324. [PMID: 38482792 DOI: 10.1021/acs.est.3c07660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Global interest grows in blue foods as part of sustainable diets, but little is known about the potential and environmental performance of blue foods from rice-animal coculture systems. Here, we compiled a large experimental database and conducted a comprehensive life cycle assessment to estimate the impacts of scaling up rice-fish and rice-crayfish systems in China. We find that a large amount of protein can be produced from the coculture systems, equivalent to ∼20% of freshwater aquaculture and ∼70% of marine wild capture projected in 2030. Because of the ecological benefits created by the symbiotic relationships, cocultured fish and crayfish are estimated to be carbon-negative (-9.8 and -4.7 kg of CO2e per 100 g of protein, respectively). When promoted at scale to displace red meat, they can save up to ∼98 million tons of greenhouse gases and up to ∼13 million hectares of farmland, equivalent to ∼44% of China's total rice acreage. These results suggest that rice-animal coculture systems can be an important source of blue foods and contribute to a sustainable dietary shift, while reducing the environmental footprints of rice production. To harvest these benefits, robust policy supports are required to guide the sustainable development of coculture systems and promote healthy and sustainable dietary change.
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Affiliation(s)
- Rui Wang
- State Key Laboratory of Pollution Control & Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, P. R. China
| | - Lei Feng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, P. R. China
| | - Qiang Xu
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, P. R. China
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, P. R. China
- Research Institute of Rice Industrial Engineering Technology of Yangzhou University, Yangzhou 225009, P. R. China
| | - Lu Jiang
- State Key Laboratory of Pollution Control & Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, P. R. China
| | - Yize Liu
- State Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, P. R. China
| | - LongLong Xia
- Institute for Meteorology and Climate Research (IMK-IFU), Karlsruhe Institute of Technology, Garmisch-Partenkirchen 82467, Germany
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
| | - Beibei Liu
- State Key Laboratory of Pollution Control & Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, P. R. China
| | - Minghao Zhuang
- State Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing 100193, P. R. China
| | - Yi Yang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, P. R. China
- College of Environment and Ecology, Chongqing University, Chongqing 400044, P. R. China
- The National Centre for International Research of Low-carbon & Green Buildings, Ministry of Science & Technology, Chongqing University, Chongqing 400044, P. R. China
- The Joint International Research Laboratory of Green Buildings and Built Environments, Ministry of Education, Chongqing University, Chongqing 400044, P. R. China
- China Chongqing Field Observation Station for River and Lake Ecosystems, Chongqing University, Chongqing 400044, P. R. China
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23
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Guy DJ, Bray J, Appleton KM. Select dietary changes towards sustainability: Impacts on dietary profiles, environmental footprint, and cost. Appetite 2024; 194:107194. [PMID: 38154573 DOI: 10.1016/j.appet.2023.107194] [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: 10/03/2023] [Revised: 12/13/2023] [Accepted: 12/22/2023] [Indexed: 12/30/2023]
Abstract
Healthy sustainable diets have the power to improve dietary intakes and environmental resource use. However, recommendations for improving food choices need to consider the effects of any changes across multiple dimensions of health, environmental sustainability, and dietary cost to promote long-lasting behaviour change. The aim of this study was to identify differences between original diets, and the diets that can be achieved through the implementation of select small dietary changes towards sustainability. Twelve hypothetical sustainable actions were investigated for the potential effects of these actions on dietary markers (protein, saturated fat, sugars, salt, iron, and calcium), environmental footprints (greenhouse gas emissions, freshwater withdrawals, and land use), and dietary cost. Dietary data from 1235 individuals, aged 19-94 years, participating in the UK National Diet and Nutrition Survey (2017/19) provided the original diet. Dietary changes were implemented as required by each sustainable action, and differences between the original diet and each new diet were investigated. Results revealed benefits to dietary markers and environmental characteristics from eleven sustainable actions (range: F(1,728) = 5.80, p < .001 to F(1,506) = 435.04, p < .001), but effects were stronger for some actions than for others. Greatest benefits for all three outcomes were found for actions which reduced meat consumption and/or replaced meat with pulses or eggs. The remaining sustainable actions tended to be beneficial for improving outcomes individually or to some degree. Our results demonstrate the possible impacts of a number of small sustainable dietary actions for dietary, environmental, and cost outcomes, and provide a hierarchy of actions based on benefit. Findings may facilitate dietary behaviours towards improved health, whilst also offering fruitful contributions towards environmental footprint targets in the UK.
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Affiliation(s)
- Danielle J Guy
- Department of Psychology, Faculty of Science and Technology, Bournemouth University, UK.
| | - Jeffery Bray
- Bournemouth University Business School, Bournemouth University, UK
| | - Katherine M Appleton
- Department of Psychology, Faculty of Science and Technology, Bournemouth University, UK
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24
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Cottrell RS. Towards a nutritional balance of fish for feed and fish for food. NATURE FOOD 2024; 5:200-201. [PMID: 38509234 DOI: 10.1038/s43016-024-00933-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Affiliation(s)
- Richard S Cottrell
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia.
- Centre for Marine Socioecology, University of Tasmania, Hobart, Tasmania, Australia.
- School of the Environment, The University of Queensland, Brisbane, Queensland, Australia.
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25
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Ran Y, Cederberg C, Jonell M, Bergman K, De Boer IJM, Einarsson R, Karlsson J, Potter HK, Martin M, Metson GS, Nemecek T, Nicholas KA, Strand Å, Tidåker P, Van der Werf H, Vanham D, Van Zanten HHE, Verones F, Röös E. Environmental assessment of diets: overview and guidance on indicator choice. Lancet Planet Health 2024; 8:e172-e187. [PMID: 38453383 DOI: 10.1016/s2542-5196(24)00006-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 03/09/2024]
Abstract
Comprehensive but interpretable assessment of the environmental performance of diets involves choosing a set of appropriate indicators. Current knowledge and data gaps on the origin of dietary foodstuffs restrict use of indicators relying on site-specific information. This Personal View summarises commonly used indicators for assessing the environmental performance of diets, briefly outlines their benefits and drawbacks, and provides recommendations on indicator choices for actors across multiple fields involved in activities that include the environmental assessment of diets. We then provide recommendations on indicator choices for actors across multiple fields involved in activities that use environmental assessments, such as health and nutrition experts, policy makers, decision makers, and private-sector and public-sector sustainability officers. We recommend that environmental assessment of diets should include indicators for at least the five following areas: climate change, biosphere integrity, blue water consumption, novel entities, and impacts on natural resources (especially wild fish stocks), to capture important environmental trade-offs. If more indicators can be handled in the assessment, indicators to capture impacts related to land use quantity and quality and green water consumption should be used. For ambitious assessments, indicators related to biogeochemical flows, stratospheric ozone depletion, and energy use can be added.
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Affiliation(s)
- Ylva Ran
- Department of Energy and Technology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
| | - Christel Cederberg
- Division of Physical Resource Theory, Department of Space, Earth and Environment, Chalmers University of Technology, Göteborg, Sweden
| | - Malin Jonell
- Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Science, Stockholm, Sweden; Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
| | - Kristina Bergman
- KTH Royal Institute of Technology, Department of Sustainable Development, Environmental Science and Engineering, Stockholm, Sweden
| | - Imke J M De Boer
- Animal Production Systems Group, Wageningen University & Research, Wageningen, Netherlands
| | - Rasmus Einarsson
- Department of Energy and Technology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Johan Karlsson
- Department of Energy and Technology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Hanna Karlsson Potter
- Department of Energy and Technology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Michael Martin
- IVL Swedish Environmental Research Institute, Stockholm, Sweden
| | - Geneviève S Metson
- Department of Geography and Environment, Social Sciences Centre, University of Western Ontario, London, ON, Canada; Ecological and Environmental Modeling Division, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden
| | - Thomas Nemecek
- Agroscope, Life Cycle Assessment Research Group, Zurich, Switzerland
| | | | - Åsa Strand
- IVL Swedish Environmental Research Institute, Stockholm, Sweden
| | - Pernilla Tidåker
- Department of Energy and Technology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Hayo Van der Werf
- French National Research Institute for Agriculture, Food and Environment, l'Institut Agro Rennes-Angers, Rennes, France
| | | | - Hannah H E Van Zanten
- Farming Systems Ecology Group, Wageningen Universityand Research, Wageningen, Netherlands; Department of Global Development, College of Agriculture and Life Sciences, and Cornell Atkinson Center for Sustainability, Cornell University, Ithaca, NY, USA
| | - Francesca Verones
- Industrial Ecology Programme, Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway
| | - Elin Röös
- Department of Energy and Technology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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26
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Maar M, Larsen J, Butenschön M, Kristiansen T, Thodsen H, Taylor D, Schourup-Kristensen V. Impacts of climate change on water quality, benthic mussels, and suspended mussel culture in a shallow, eutrophic estuary. Heliyon 2024; 10:e25218. [PMID: 38322902 PMCID: PMC10845728 DOI: 10.1016/j.heliyon.2024.e25218] [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: 09/24/2023] [Revised: 12/16/2023] [Accepted: 01/23/2024] [Indexed: 02/08/2024] Open
Abstract
Climate change is a global problem that causes severe local changes to marine biota, ecosystem functioning, and ecosystem services. The Limfjorden is a shallow, eutrophic estuary influenced by episodic summer hypoxia with an important mussel fishery and suspended mussel culture industry. Three future climate change scenarios ranging from low greenhouse gas emissions (SSP1-2.6), to intermediate (SSP2-4.5) and very high emissions (SSP5-8.5) were combined with nutrient load reductions according to the National Water Plans to investigate potential impacts on natural benthic mussel populations and suspended mussel culture for the two periods 2051-2060 and 2090-2099, relative to a reference period from 2009 to 2018. The FlexSem model combined 3D hydrodynamics with a pelagic biogeochemical model, a sediment-benthos model, and a dynamic energy budget - farm scale model for mussel culture. Model results showed that the Limfjorden was sensitive to climate change impacts with the strongest responses of physics and water quality in the worst case SSP5-8.5 scenario with no nutrient reductions. In the two low emissions scenarios, expected improvements of bottom oxygen and Chlorophyll a concentrations due to reduced nutrient loads were counteracted by climate change impacts on water physics (warming, freshening, stronger stratification). Hence, higher nutrient reductions in the Water Plans would be needed to reach a good ecological status under the influence of climate change. Suspended mussel culture was intensified in all scenarios showing a high potential harvest, whereas the benthic mussels suffered from reduced food supply and hypoxia. Provided the environmental changes and trends in social demands, in the future, it is likely that suspended mussel cultivation will become the primary source of mussels for the industry. Model scenarios can be used to inform managers, mussel farmers, fishermen, and the local population on potential future changes in bivalve harvesting and ecosystem health, and to find solutions to mitigate climate change impacts.
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Affiliation(s)
- Marie Maar
- Department of Ecoscience, Aarhus University, Frederiksborgvej 399, PO Box 358, 4000 Roskilde, Denmark
| | - Janus Larsen
- Department of Ecoscience, Aarhus University, Frederiksborgvej 399, PO Box 358, 4000 Roskilde, Denmark
| | - Momme Butenschön
- CMCC Foundation—Euro-Mediterranean Center on Climate Change, Bologna, Italy
| | - Trond Kristiansen
- Farallon Institute, 101 H St., Petaluma, CA 9495, USA
- Actea Inc, San Francisco, CA, USA
| | - Hans Thodsen
- Department of Ecoscience, Aarhus University, CF Møllers Allé 3, 8000 Aarhus C, Denmark
| | - Daniel Taylor
- Section for Coastal Ecology, National Institute of Aquatic Resources, DTU Aqua, 7900 Nykøbing-Mors, Denmark
| | - Vibe Schourup-Kristensen
- Department of Ecoscience, Aarhus University, Frederiksborgvej 399, PO Box 358, 4000 Roskilde, Denmark
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27
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Zhao K, Gaines SD, García Molinos J, Zhang M, Xu J. Effect of trade on global aquatic food consumption patterns. Nat Commun 2024; 15:1412. [PMID: 38360822 PMCID: PMC10869811 DOI: 10.1038/s41467-024-45556-w] [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: 06/20/2023] [Accepted: 01/28/2024] [Indexed: 02/17/2024] Open
Abstract
Globalization of fishery products is playing a significant role in shaping the harvesting and use of aquatic foods, but a vigorous debate has focused on whether the trade is a driver of the inequitable distribution of aquatic foods. Here, we develop species-level mass balance and trophic level identification datasets for 174 countries and territories to analyze global aquatic food consumption patterns, trade characteristics, and impacts from 1976 to 2019. We find that per capita consumption of aquatic foods has increased significantly at the global scale, but the human aquatic food trophic level (HATL), i.e., the average trophic level of aquatic food items in the human diet, is declining (from 3.42 to 3.18) because of the considerable increase in low-trophic level aquaculture species output relative to that of capture fisheries since 1976. Moreover, our study finds that trade has contributed to increasing the availability and trophic level of aquatic foods in >60% of the world's countries. Trade has also reduced geographic differences in the HATL among countries over recent decades. We suggest that there are important opportunities to widen the current focus on productivity gains and economic outputs to a more equitable global distribution of aquatic foods.
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Affiliation(s)
- Kangshun Zhao
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Key Laboratory of Lake and Watershed Science for Water Security, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- Bren School of Environmental Science & Management, University of California, Santa Barbara, CA, USA
| | - Steven D Gaines
- Bren School of Environmental Science & Management, University of California, Santa Barbara, CA, USA
| | | | - Min Zhang
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, College of Fisheries, Huazhong Agricultural University, Wuhan, China.
| | - Jun Xu
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Key Laboratory of Lake and Watershed Science for Water Security, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, China.
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
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28
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Urban P, Jacobsen MW, Bekkevold D, Nielsen A, Storr-Paulsen M, Nijland R, Nielsen EE. eDNA based bycatch assessment in pelagic fish catches. Sci Rep 2024; 14:2976. [PMID: 38316827 PMCID: PMC10844201 DOI: 10.1038/s41598-024-52543-0] [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: 05/25/2023] [Accepted: 01/19/2024] [Indexed: 02/07/2024] Open
Abstract
Pelagic fish like herring, sardines, and mackerel constitute an essential and nutritious human food source globally. Their sustainable harvest is promoted by the application of precise, accurate, and cost-effective methods for estimating bycatch. Here, we experimentally test the new concept of using eDNA for quantitative bycatch assessment on the illustrative example of the Baltic Sea sprat fisheries with herring bycatch. We investigate the full pipeline from sampling of production water on vessels and in processing factories to the estimation of species weight fractions. Using a series of controlled mixture experiments, we demonstrate that the eDNA signal from production water shows a strong, seasonally consistent linear relationship with herring weight fractions, however, the relationship is influenced by the molecular method used (qPCR or metabarcoding). In four large sprat landings analyzed, despite examples of remarkable consistency between eDNA and visual reporting, estimates of herring bycatch biomass varied between the methods applied, with the eDNA-based estimates having the highest precision for all landings analyzed. The eDNA-based bycatch assessment method has the potential to improve the quality and cost effectiveness of bycatch assessment in large pelagic fisheries catches and in the long run lead to more sustainable management of pelagic fish as a precious marine resource.
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Affiliation(s)
- Paulina Urban
- Section for Marine Living Resources, National Institute of Aquatic Resources (DTU Aqua), Technical University of Denmark (DTU), Silkeborg, Denmark.
| | - Magnus Wulff Jacobsen
- Section for Marine Living Resources, National Institute of Aquatic Resources (DTU Aqua), Technical University of Denmark (DTU), Silkeborg, Denmark
| | - Dorte Bekkevold
- Section for Marine Living Resources, National Institute of Aquatic Resources (DTU Aqua), Technical University of Denmark (DTU), Silkeborg, Denmark
| | - Anders Nielsen
- Section for Marine Living Resources, National Institute of Aquatic Resources (DTU Aqua), Technical University of Denmark (DTU), Lyngby, Denmark
| | - Marie Storr-Paulsen
- Section for Monitoring and Data, National Institute of Aquatic Resources (DTU Aqua), Technical University of Denmark (DTU), Lyngby, Denmark
| | - Reindert Nijland
- Marine Animal Ecology Group, Wageningen University, Wageningen, The Netherlands
| | - Einar Eg Nielsen
- Section for Marine Living Resources, National Institute of Aquatic Resources (DTU Aqua), Technical University of Denmark (DTU), Silkeborg, Denmark.
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29
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She J, Chen S, Liu X, Huo B. Chromosome-level assembly of Triplophysa yarkandensis genome based on the single molecule real-time sequencing. Sci Data 2024; 11:39. [PMID: 38182618 PMCID: PMC10770143 DOI: 10.1038/s41597-023-02900-x] [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: 07/24/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024] Open
Abstract
Triplophysa yarkandensis, a species of freshwater fish endemic to Xinjiang, China, is currently classified as endangered. The objective of this study was to obtain the chromosome-level genome of T. yarkandensis using PacBio and Hi-C techniques. The PacBio sequencing technology resulted in an assembly of 520.64 Mb, with a contig N50 size of 1.30 Mb. Hi-C data was utilized for chromosome mapping, ultimately yielding 25 chromosome sequences. The success rate of chromosome mapping was 93%, with a scaffold N50 of 19.14 Mb, and a BUSCO evaluation integrity of 94.1%. The genome of T. yarkandensis encompasses 25,505 predicted protein-coding genes, with a total of 30,673 proteins predicted. The BUSCO evaluation integrity for predicted protein-coding genes was found to be 91.5%. Additionally, the genome contained a genomic repeat sequence accounting for 27.29% of its total length. Future research employing comparative genomics holds considerable importance in elucidating the molecular mechanisms behind saline-alkali adaptation and ensuring the conservation of biological resources.
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Affiliation(s)
- Jiacheng She
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shengao Chen
- College of Life Sciences and Technology, Tarim University, Alar, 843300, China
| | - Xuan Liu
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Bin Huo
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
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30
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Li J, Bergman K, Thomas JBE, Gao Y, Gröndahl F. Life Cycle Assessment of a large commercial kelp farm in Shandong, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166861. [PMID: 37673254 DOI: 10.1016/j.scitotenv.2023.166861] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/01/2023] [Accepted: 09/03/2023] [Indexed: 09/08/2023]
Abstract
The environmental benefits of seaweed cultivation have gained a lot of attention, both in policy strategies and by private companies. Sustainability evaluations of seaweed farming have however focused on a very small part of global production of seaweed - on European cultivations at research and pilot-scales although Asia stands for 99 % of global production with China alone producing 60 %. In this study, we use Life Cycle Assessment (LCA) to evaluate the environmental performance of a 400-hectare Chinese kelp farm with a yearly harvest of 60,000 tons. Primary data from the farm was used to assess impacts up until harvest for the functional unit of 1 ton of fresh-weight kelp. Included in the LCA were impact on climate change, acidification terrestrial and marine eutrophication, and use of land water and energy. In addition, we calculated nutrient uptake. Further, we extracted inventory data of four published LCA studies of farmed kelp and recalculated environmental impacts, applying the same background data and method choices with the aim to compare the effects of scale and cultivation system. The results of the hotspot analysis showed that the plastic ropes and buoys dominated impacts on climate change, freshwater and marine eutrophication, and energy consumption. Consequently, the most effective improvement action was recycling after use. The yearly harvest of the Chinese farm was 1000-4000 times larger than previously evaluated farms compared. Results suggest that streamlined and mature production in the large-scale Chinese kelp farm led to lower electricity and fuel consumption compared to small-scale production, thus placing the Chinese farm with a climate impact of 57.5 kg CO2 eq. per ton fresh-weight kelp on the lower end when comparing the carbon footprint. There was a large variation in carbon footprints, which implies that the kelp cultivation sector has considerable room for optimization.
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Affiliation(s)
- Ji Li
- School of Oceanography, Shanghai Jiao Tong University, Shanghai 200030, China.
| | - Kristina Bergman
- KTH Royal Institute of Technology, Department of Sustainable Development, Environmental Science and Engineering Teknikringen 10B, SE-100 44 Stockholm, Sweden.
| | - Jean-Baptiste E Thomas
- KTH Royal Institute of Technology, Department of Sustainable Development, Environmental Science and Engineering Teknikringen 10B, SE-100 44 Stockholm, Sweden
| | - Yonghui Gao
- School of Oceanography, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Fredrik Gröndahl
- KTH Royal Institute of Technology, Department of Sustainable Development, Environmental Science and Engineering Teknikringen 10B, SE-100 44 Stockholm, Sweden
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31
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Neff RA, Ramsing RJ, Kim BF. Commercial weight-loss diets, greenhouse gas emissions and freshwater consumption. J Hum Nutr Diet 2023; 36:2268-2279. [PMID: 37867400 DOI: 10.1111/jhn.13248] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 08/31/2023] [Accepted: 09/20/2023] [Indexed: 10/24/2023]
Abstract
BACKGROUND Weight-loss attempts are widespread in the United States, with many using commercial weight-loss diet plans for guidance and support. Accordingly, dietary suggestions within these plans influence the nation's food-related environmental footprint. METHODS We modelled United States (US) per capita greenhouse gas emissions (GHGe) and water footprints associated with seven commercial weight-loss diets, the US baseline, and selected other dietary patterns. We characterised consumption in commercial weight-loss diets both via modelling from provided guidelines and based on specific foods in 1-week meal plans. Cradle-to-farmgate GHGe and water footprints were assessed using a previously developed model. GHGe results were compared to the EAT-Lancet 2050 target. Water footprints were compared to the US baseline. RESULTS Weight-loss diets had GHGe footprints on average 4.4 times the EAT-Lancet target recommended for planetary health (range: 2.4-8.5 times). Bovine meat was by far the largest contributor of GHGe in most diets that included it. Three commercial diets had water footprints above the US baseline. Low caloric intake in some diets compensated for the relative increases in GHGe- and water-intensive foods. CONCLUSIONS Dietary patterns suggested by marketing materials and guidelines from commercial weight-loss diets can have high GHGe and water footprints, particularly if caloric limits are exceeded. Commercial diet plan guidance can be altered to support planetary and individual health, including describing what dietary patterns can jointly support environmental sustainability and weight loss.
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Affiliation(s)
- Roni A Neff
- Department of Environmental Health & Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Environmental Health & Engineering Johns Hopkins Center for a Livable Future, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Rebecca J Ramsing
- Department of Environmental Health & Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Environmental Health & Engineering Johns Hopkins Center for a Livable Future, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Brent F Kim
- Department of Environmental Health & Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Environmental Health & Engineering Johns Hopkins Center for a Livable Future, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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32
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Love DC, Asche F, Fry J, Nguyen L, Gephart J, Garlock TM, Jenkins LD, Anderson JL, Brown M, Viglia S, Nussbaumer EM, Neff R. Aquatic food loss and waste rate in the United States is half of earlier estimates. NATURE FOOD 2023; 4:1058-1069. [PMID: 38093119 PMCID: PMC10727981 DOI: 10.1038/s43016-023-00881-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 10/27/2023] [Indexed: 12/20/2023]
Abstract
Food loss and waste (FLW) is a major challenge to food system sustainability, including aquatic foods. We investigated aquatic FLW in the food supply of the United States, the largest importer of aquatic food globally, using primary and secondary data and life cycle methodology. We show that there are significant differences in FLW among species, production technology, origin and stage of supply chain. We estimate total aquatic FLW was 22.7%, which is 43-55% lower than earlier estimates reported in the literature, illustrating the importance of applying a disaggregated approach. Production losses associated with imported food contribute over a quarter of total FLW, and addressing these losses requires multinational efforts to implement interventions along the supply chain. These findings inform prioritization of solutions-including areas of need for innovations, government incentives, policy change, infrastructure and equity.
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Affiliation(s)
- David C Love
- Johns Hopkins Center for a Livable Future, Johns Hopkins University, Baltimore, MD, USA.
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Frank Asche
- School of Forest, Fisheries and Geomatics Sciences, University of Florida, Gainesville, FL, USA
- Department of Safety, Economics and Planning, University of Stavanger, Stavanger, Norway
| | - Jillian Fry
- Department of Health Sciences, College of Health Professions, Towson University, Towson, MD, USA
| | - Ly Nguyen
- Food and Resource Economics Department, University of Florida, Gainesville, FL, USA
| | - Jessica Gephart
- Department of Environmental Science, American University, Washington, DC, USA
| | - Taryn M Garlock
- School of Forest, Fisheries and Geomatics Sciences, University of Florida, Gainesville, FL, USA
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL, USA
| | - Lekelia D Jenkins
- School for the Future of Innovation in Society, Arizona State University, Tempe, AZ, USA
| | - James L Anderson
- Center for Environmental Policy, University of Florida, Gainesville, FL, USA
| | - Mark Brown
- Center for Environmental Policy, University of Florida, Gainesville, FL, USA
| | - Silvio Viglia
- Center for Environmental Policy, University of Florida, Gainesville, FL, USA
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Casaccia Research Centre, Rome, Italy
| | - Elizabeth M Nussbaumer
- Johns Hopkins Center for a Livable Future, Johns Hopkins University, Baltimore, MD, USA
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Baltimore, MD, USA
| | - Roni Neff
- Johns Hopkins Center for a Livable Future, Johns Hopkins University, Baltimore, MD, USA
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Baltimore, MD, USA
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33
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Liu X, Wu H, Wang Y, Liu Y, Zhu H, Li Z, Shan P, Yuan Z. Comparative assessment of Chinese mitten crab aquaculture in China: Spatiotemporal changes and trade-offs. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 337:122544. [PMID: 37709121 DOI: 10.1016/j.envpol.2023.122544] [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: 07/12/2023] [Revised: 08/25/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
The increasing human demand for high-quality animal protein has provided impetus for the development of aquaculture. Chinese mitten crab (Eriocheir sinensis) is a catadromous species rapidly being cultured in China but scientific literature documenting its life cycle environmental and economic consequences remains scarce. This study aims to address this gap by examining the spatio-temporal evolution of crab aquaculture in China since the 2000s and evaluating the environmental and economic characteristics along its life-cycle stages: megalopa, juvenile crab, and adult crab cultivation. The geostatistical analysis shows a more dispersed pattern of crab aquaculture nationally as crab grows, with coastal provinces that have brackish water for megalopa cultivation but wider spatial coverage for juvenile and adult crab cultivation. Our findings reveal that the production of 1 ton of live-weight crab results in 7.65 ton of CO2 equivalent of greenhouse gas emissions, surpassing previous estimates for finfish fish production by approximately 50%. Most environmental pressures occur during the adult crab cultivation stage, with significant contributions from upstream processes such as electricity and feed production. By comparing between different production systems, our study shows that crab aquaculture in lake systems performs better than pond systems in terms of most global environmental impact categories and economic considerations. This work contributes to the existing literature by elucidating the spatio-temporal changes of crab aquaculture boom in China and constructing a representative life cycle data pool that broadens the benchmark knowledge on its environmental and economic characteristics. We highlight the trade-offs between environmental and economic performance as well as the balance between global and local environmental impacts to promote sustainable growth in the aquaculture industry.
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Affiliation(s)
- Xin Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Huijun Wu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, 232001, China
| | - Yuan Wang
- Institute of Geography, Fujian Normal University, Fuzhou, 350007, China
| | - Yajie Liu
- Norwegian College of Fishery Science, UiT The Arctic University of Norway, Norway
| | - Hui Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Zeru Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Pengguang Shan
- Institute of Geography, Fujian Normal University, Fuzhou, 350007, China
| | - Zengwei Yuan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
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34
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Gianella F, Burrows MT, Davidson K. The relationship between salmon (Salmo salar) farming and cell abundance of harmful algal taxa. HARMFUL ALGAE 2023; 129:102512. [PMID: 37951607 DOI: 10.1016/j.hal.2023.102512] [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: 03/29/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 11/14/2023]
Abstract
The effects of nutrient effluents from fish cage aquaculture are an important eutrophication concern. It has been proposed that marine fish farm derived nutrients have the potential to increase phytoplankton abundance and lead to intensification of Harmful Algal Blooms (HABs), and that these blooms may negatively impact both the finfish and the shellfish industry. This study addressed this hypothesis using farmed salmon biomass in Scottish marine waters (as a proxy for nutrient load added to the water column as a consequence of fish farming) cell abundance of HAB taxa that most frequently impact shellfish farms and human health in the region (Dinophysis spp., Alexandrium spp. and Pseudo-nitzschia spp.), and cell abundance of one phytoplankton species of particular concern to the salmon farming industry (Karenia mikimotoi). Data from a 15-year weekly HAB monitoring programme and parallel national monitoring data relating to salmon farm stocking biomass were summarised in 5 km per 5 km aggregation boxes. Linear regression models were used to assess (i) inter-annual variation in cell abundance and total annual farmed salmon biomass; (ii) intra-annual (monthly) variation in harmful phytoplankton cell abundance and salmon biomass; (iii) a further analysis included seasonal effects within the intra-annual analysis. Farmed salmon biomass alone had a non-significant effect on cell abundance of any of the studied phytoplankton taxa. In contrast, a significant effect on cell abundance was found when using location, month or season as the predictive variable. Despite the non-significant impact of fish biomass on phytoplankton counts, the relationship varied seasonally, with a different response of Dinophysis spp. indicating a taxa specific interaction. A possible explanation for the lack of a significant relationship between farmed salmon and harmful phytoplankton cell abundance is that aquaculture farms are generally located in hydrodynamically energetic locations where recurrent flushing likely allows efficient dilution of nutrients. Overall, the analyses suggest that current levels of salmon farming activities do not markedly impact the abundance of routinely monitored biotoxin producing or fish killing phytoplankton taxa in Scottish waters.
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Affiliation(s)
- Fatima Gianella
- Scottish Association for Marine Science, Oban PA37 1QA, United Kingdom.
| | - Michael T Burrows
- Scottish Association for Marine Science, Oban PA37 1QA, United Kingdom
| | - Keith Davidson
- Scottish Association for Marine Science, Oban PA37 1QA, United Kingdom
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35
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Vu DT, Falch E, Elvevoll EO, Jensen IJ. Enzymatic Hydrolysis of Orange-Footed Sea Cucumber ( Cucumaria frondosa)-Effect of Different Enzymes on Protein Yield and Bioactivity. Foods 2023; 12:3685. [PMID: 37835338 PMCID: PMC10573069 DOI: 10.3390/foods12193685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/29/2023] [Accepted: 10/05/2023] [Indexed: 10/15/2023] Open
Abstract
While sea cucumber is a food delicacy in Asia, these food resources are less exploited in Europe. The aim of this study was to determine the chemical composition and potential food applications of the less exploited orange-footed sea cucumber (Cucumaria frondosa). In particular, the antioxidative capacity and free amino acids associated with the umami flavor released by enzymatic hydrolyses by either Bromelain + Papain (0.36%, 1:1) or Alcalase (0.36%) were studied. Fresh C. frondosa contained approximately 86% water, and low levels of ash (<1%) and lipids (<0.5%). The protein content was 5%, with a high proportion of essential amino acids (43%) and thus comparable to the FAO reference protein. The high concentration of free amino acids associated with umami, sour, sweet, and bitter may contribute to flavor enhancement. Hydrolysis by Bromelain + Papain resulted in the highest protein yield, and the greatest concentration of free amino acids associated with umami and sour taste. All samples showed promising antioxidant capacity measured by FRAP, ABTS, DPPH and ORAC compared to previous reports. The inorganic arsenic concentration of fresh C. frondosa ranged from 2 to 8 mg/kg wet weight and was not affected by processing. This is comparable to other seafood and may exceed regulatory limits of consumption.
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Affiliation(s)
- Dat Trong Vu
- Department of Biotechnology and Food Science, The Norwegian University of Science and Technology, NTNU Trondheim, N-7012 Trondheim, Norway; (D.T.V.); (E.F.)
| | - Eva Falch
- Department of Biotechnology and Food Science, The Norwegian University of Science and Technology, NTNU Trondheim, N-7012 Trondheim, Norway; (D.T.V.); (E.F.)
| | - Edel O. Elvevoll
- Norwegian College of Fishery Science, UiT-The Arctic University of Norway, N-9037 Tromsø, Norway;
| | - Ida-Johanne Jensen
- Department of Biotechnology and Food Science, The Norwegian University of Science and Technology, NTNU Trondheim, N-7012 Trondheim, Norway; (D.T.V.); (E.F.)
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36
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Liu P, Hu J, Wang Q, Tan J, Wei J, Yang H, Tang S, Huang H, Zou Y, Huang Z. Physicochemical characterization and cosmetic application of kelp blanching water polysaccharides. Int J Biol Macromol 2023; 248:125981. [PMID: 37499725 DOI: 10.1016/j.ijbiomac.2023.125981] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/18/2023] [Accepted: 07/23/2023] [Indexed: 07/29/2023]
Abstract
Seaweeds account for half of global mariculture and have become a key player in bio-based industries. Seaweed process typically starts with hot water blanching that helps reduce postharvest quality deterioration but also generates large amounts of hydrothermal waste. This study aims to explore the feasibility of isolating water-soluble biopolymers from seaweed hydrothermal waste and their potential applications. Using Saccharina japonica (formerly Laminaria japonica) blanching water as example, 2.9 g/L of polymeric substances were efficiently isolated by ultrafiltration, implying biopolymer coproduction potential of ~5.8 kt from blanching wastewater of current kelp industry. Physicochemical characterizations revealed polysaccharidic nature of the biopolymers, with high contents of fucose, uronic acids and sulfate, showing distinct but also overlapping structural features with hot water-extracted kelp polysaccharides. The main fraction of the blanching water polymers after anion exchange chromatography was acidic polysaccharide, the major backbone residues of which were (1-4) linked mannopyranose, (1-4) linked gulopyranose and (1-2) linked fucopyranose while the branched residues were primarily 1,3,4-, 1,2,4- and 1,4,6-linked hexoses but also 1,3,4-fucopyranose. Furthermore, the polysaccharides were found to have a good compatibility in cosmetic creams with added cohesiveness and freshness, demonstrating the application potential of such natural biopolymers from currently underexplored seaweed blanching water.
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Affiliation(s)
- Peihua Liu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Guangdong Province Key Laboratory for Biocosmetics, Guangzhou 510641, China
| | - Jingjing Hu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Guangdong Province Key Laboratory for Biocosmetics, Guangzhou 510641, China
| | - Qiangqiang Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Guangdong Province Key Laboratory for Biocosmetics, Guangzhou 510641, China
| | - Jianhua Tan
- Guangdong Province Key Laboratory for Biocosmetics, Guangzhou 510641, China; Guangzhou Quality Supervision and Testing Institute, Guangzhou 511447, China
| | - Jian Wei
- Guangdong Province Key Laboratory for Biocosmetics, Guangzhou 510641, China; Guangzhou Quality Supervision and Testing Institute, Guangzhou 511447, China
| | - Hongbo Yang
- Instrumental Analysis Center, Shenzhen University, Shenzhen 518055, China
| | - Shuping Tang
- Guangzhou Siyan Biotechnology Co., Ltd., Guangzhou 510006, China
| | - Hongliang Huang
- School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yongdong Zou
- Instrumental Analysis Center, Shenzhen University, Shenzhen 518055, China.
| | - Zebo Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Guangdong Province Key Laboratory for Biocosmetics, Guangzhou 510641, China.
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37
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Huang S, Edie SM, Collins KS, Crouch NMA, Roy K, Jablonski D. Diversity, distribution and intrinsic extinction vulnerability of exploited marine bivalves. Nat Commun 2023; 14:4639. [PMID: 37582749 PMCID: PMC10427664 DOI: 10.1038/s41467-023-40053-y] [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: 06/17/2022] [Accepted: 07/10/2023] [Indexed: 08/17/2023] Open
Abstract
Marine bivalves are important components of ecosystems and exploited by humans for food across the world, but the intrinsic vulnerability of exploited bivalve species to global changes is poorly known. Here, we expand the list of shallow-marine bivalves known to be exploited worldwide, with 720 exploited bivalve species added beyond the 81 in the United Nations FAO Production Database, and investigate their diversity, distribution and extinction vulnerability using a metric based on ecological traits and evolutionary history. The added species shift the richness hotspot of exploited species from the northeast Atlantic to the west Pacific, with 55% of bivalve families being exploited, concentrated mostly in two major clades but all major body plans. We find that exploited species tend to be larger in size, occur in shallower waters, and have larger geographic and thermal ranges-the last two traits are known to confer extinction-resistance in marine bivalves. However, exploited bivalve species in certain regions such as the tropical east Atlantic and the temperate northeast and southeast Pacific, are among those with high intrinsic vulnerability and are a large fraction of regional faunal diversity. Our results pinpoint regional faunas and specific taxa of likely concern for management and conservation.
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Affiliation(s)
- Shan Huang
- School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
- Senckenberg Biodiversity and Climate Research Center (SBiK-F), Frankfurt (Main), Germany.
| | - Stewart M Edie
- Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC, 20013, USA
| | | | - Nicholas M A Crouch
- Department of the Geophysical Sciences, University of Chicago, Chicago, IL, 60637, USA
| | - Kaustuv Roy
- Department of Ecology, Behavior and Evolution, University of California San Diego, La Jolla, CA, 92093-0116, USA
| | - David Jablonski
- Department of the Geophysical Sciences, University of Chicago, Chicago, IL, 60637, USA
- Committee on Evolutionary Biology, University of Chicago, Chicago, IL, 60637, USA
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38
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Welfare and value of farmed fish. Vet Rec 2023; 193:161-162. [PMID: 37594834 DOI: 10.1002/vetr.3389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
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39
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Trigo JP, Palmnäs-Bédard M, Juanola MVL, Undeland I. Effects of whole seaweed consumption on humans: current evidence from randomized-controlled intervention trials, knowledge gaps, and limitations. Front Nutr 2023; 10:1226168. [PMID: 37545570 PMCID: PMC10399747 DOI: 10.3389/fnut.2023.1226168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 07/07/2023] [Indexed: 08/08/2023] Open
Abstract
Seaweed is often recognized for its potential health benefits, attributed to its abundance of dietary fibers, protein, and polyphenols. While human observational studies have shown promise, the collective evidence from human intervention trials remains limited. This narrative review aims to comprehensively analyze the effects of seaweed intake on humans, while critically assessing the methodology, including Cochrane risk-of-bias assessment. A search was conducted in online databases, including PubMed, Scopus, and Google Scholar, covering the period from 2000 to May 2023. The focus was on randomized controlled clinical trials (RCTs) evaluating the impact of whole seaweed, either consumed as capsules, integrated into food products or as part of meals. Various health outcomes were examined, including appetite, anthropometric measures, cardiometabolic risk factors, thyroid function, markers of oxidative stress, and blood mineral concentrations. Out of the 25 RCTs reviewed, the findings revealed limited yet encouraging evidence for effects of seaweed on blood glucose metabolism, blood pressure, anthropometric measures, and, to a lesser extent, blood lipids. Notably, these favorable effects were predominantly observed in populations with type-2 diabetes and hypertension. Despite most trials selecting a seaweed dose aligning with estimated consumption levels in Japan, considerable variability was observed in the pretreatment and delivery methods of seaweed across studies. Moreover, most studies exhibited a moderate-to-high risk of bias, posing challenges in drawing definitive conclusions. Overall, this review highlights the necessity for well-designed RCTs with transparent reporting of methods and results. Furthermore, there is a need for RCTs to explore seaweed species cultivated outside of Asia, with a specific emphasis on green and red species. Such studies will provide robust evidence-based support for the growing utilization of seaweed as a dietary component in regions with negligible seaweed consumption, e.g., Europe.
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40
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Viana DF, Zamborain-Mason J, Gaines SD, Schmidhuber J, Golden CD. Nutrient supply from marine small-scale fisheries. Sci Rep 2023; 13:11357. [PMID: 37443165 PMCID: PMC10344920 DOI: 10.1038/s41598-023-37338-z] [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: 03/17/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Over 2 billion people are unable to access safe, nutritious and sufficient food year-round. While global fisheries are considered key in providing essential nutrients to hundreds of millions of people around the globe, the specific contribution of small-scale fisheries to the nutrient supply given other available food supplies is unknown. Here, we combined multiple global databases to quantify the importance of marine small-scale fisheries to national-level nutrient supply of coastal populations. We found that, on average across assessed nutrients (iron, zinc, calcium, DHA + EPA and vitamins A and B12), small-scale fisheries contributed about 32% of overall global seafood nutrient supply, 17% of the nutrient supply from animal-sourced foods and 10% of nutrient supply from all foods. These global averages, however, underrepresent some key roles of ocean-based foods. Combining nutrient supply estimates with global estimates of inadequate nutrient intake, we found that about half of coastal countries that have a mean inadequate intake of at least 50% across assessed nutrients (iron, zinc, calcium, DHA + EPA and vitamins A and B12) rely on small scale fisheries for at least 15% of mean nutrient supply, and many rely on small scale fisheries for more than 30% of mean nutrient supply. Catch from small-scale fisheries is particularly important for the supply of vitamin B12, calcium and DHA + EPA, representing up to 100% of supply in selected countries. Our study demonstrates the significance of small-scale fisheries for nutritionally vulnerable coastal populations, emphasizing how effective fisheries management can contribute to public health.
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Affiliation(s)
- Daniel F Viana
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.
- Ocean Conservation, World Wildlife Fund, Washington, DC, 20037, USA.
| | | | - Steven D Gaines
- Bren School of Environmental Science and Management, University of California, Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Josef Schmidhuber
- Markets and Trade Division, Food and Agriculture Organization, Rome, Italy
| | - Christopher D Golden
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
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41
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Zhong Z, Li H, Li Z, Cao J, Wang C, Luo Z, Wang B, Zhuang J, Han Q, Li A. Inhibiting thioredoxin glutathione reductase is a promising approach to controlling Cryptocaryon irritans infection in fish. Vet Parasitol 2023; 320:109972. [PMID: 37385103 DOI: 10.1016/j.vetpar.2023.109972] [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: 03/10/2023] [Revised: 05/21/2023] [Accepted: 06/09/2023] [Indexed: 07/01/2023]
Abstract
Marine cultured fish often suffer from Cryptocaryon irritans infection, which causes enormous mortality. C. irritans is resistant to oxidative damage induced by zinc. To develop an effective drug to control the parasite, a putative thioredoxin glutathione reductase (CiTGR) from C. irritans was cloned and characterized. CiTGR was designed as a target to screen for inhibitors by molecular docking. The selected inhibitors were tested both in vitro and in vivo. The results showed that CiTGR is located in the nucleus of the parasite, possesses a common pyridine-oxidoreductases redox active center, and lacks a glutaredoxin active site. Recombinant CiTGR exhibited high TrxR activity but low glutathione reductase activity. Shogaol was found to significantly suppress TrxR activity and enhance toxicity of zinc on C. irritans (P < 0.05). The abundance of C. irritans on the fish body decreased significantly after oral administration of shogaol (P < 0.05). These results implied that CiTGR could be used to screen for drugs that weaken the resistance of C. irritans to oxidative stress, which is critical for controlling the parasite in fish. This paper deepens the understanding of the interaction between ciliated parasites and oxidative stress.
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Affiliation(s)
- Zhihong Zhong
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China
| | - Han Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China
| | - Zhicheng Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China
| | - Jizhen Cao
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China
| | - Chenxi Wang
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China
| | - Zhi Luo
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China
| | - Baotun Wang
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China
| | - Jingyu Zhuang
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China
| | - Qing Han
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China
| | - Anxing Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, Guangdong Province, PR China.
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42
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Giosuè A, Riccardi G, Antonelli M. Maximizing cardiovascular benefits of fish consumption within the One Health approach: Should current recommendations be revised? Nutr Metab Cardiovasc Dis 2023; 33:1129-1133. [PMID: 37087360 DOI: 10.1016/j.numecd.2023.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 03/23/2023] [Indexed: 04/24/2023]
Abstract
AIMS Current dietary recommendations on fish consumption for cardiovascular disease (CVD) prevention put somewhat vague emphasis on fatty fish, mainly driven by evidence on the cardioprotective effects of n-3 PUFAs. Recent data on the consumption of different types of fish in relation to hard cardiovascular endpoints suggests that fatty but not lean fish can contribute to CVD prevention. This considered, we aimed at evaluating, by an environmental perspective, fish consumption limited to the fatty type - in appropriate amounts for optimizing CVD prevention - within the European context. DATA SYNTHESIS Starting from the current average intake of total fish by the European population (i.e., 2 servings/week of fatty plus lean fish), we show that the shift towards the consumption of 2 servings/week of solely fatty fish - appropriate for optimizing CVD prevention - would allow a 32% saving of greenhouse gas (GHG) emissions related to fish consumption. This is due to the lower environmental impact of fatty fish globally considered, compared to lean fish. However, since the carbon footprint of different fatty fish species can vary significantly - with small blue fish (e.g., anchovies, sardines, herrings) in the lowest range, we estimated that GHG emissions due to fish consumption in Europe could be reduced by 82% by focusing on small blue fish consumption. CONCLUSIONS Consumption of 2 servings/week of small blue fish could represent a feasible and effective choice among the functional dietary strategies available to achieve the maximal benefits for human and environmental health.
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Affiliation(s)
- Annalisa Giosuè
- Department of Clinical Medicine and Surgery, "Federico II" University, Naples, Italy.
| | - Gabriele Riccardi
- Department of Clinical Medicine and Surgery, "Federico II" University, Naples, Italy
| | - Marta Antonelli
- Division Impacts on Agriculture, Forests and Ecosystem Services (IAFES), Foundation Euro- Mediterranean Center on Climate Change (CMCC), Viterbo, Italy
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43
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Konic Ristic A, Ryan S, Attjioui M, O'Connell S, Gibney ER. Effects of an Extract of the Brown Seaweed Ascophylum nodosum on Postprandial Glycaemic Control in Healthy Subjects: A Randomized Controlled Study. Mar Drugs 2023; 21:337. [PMID: 37367662 DOI: 10.3390/md21060337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/19/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
The effects of the consumption of an extract of the brown seaweed Ascophyllum nodosum (BSW) on postprandial glucose and insulin responses to white bread were investigated in an acute, randomized, double-blind, three-arm, crossover, controlled trial in healthy, normoglycemic subjects. Sixteen subjects were administered either control white bread (50 g total digestible carbohydrates) or white bread with 500 mg or 1000 mg of BSW extract. Biochemical parameters were measured in venous blood over 3 h. Significant inter-individual variation in the glycaemic response to white bread was observed. Analysis of the responses of all subjects to either 500 mg or 1000 mg of BSW extract versus control revealed no significant effects of treatments. The variation in response to the control was used to classify individuals into glycaemic responders and non-responders. In the sub-cohort of 10 subjects with peak glucose levels after white bread above 1 mmol/L, we observed a significant decrease in maximum levels of plasma glucose after the intervention meal with 1000 mg of extract compared with the control. No adverse effects were reported. Further work is warranted to define all factors that determine "responders" to the effects of brown seaweed extracts and identify the cohort that would benefit the most from their consumption.
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Affiliation(s)
- Aleksandra Konic Ristic
- UCD School of Agriculture and Food Science, University College Dublin, D04V1W8 Belfiled, Dublin, Ireland
- UCD Institute of Food and Health, University College Dublin, D04V1W8 Belfield, Dublin, Ireland
| | | | | | - Shane O'Connell
- Marigot Ltd., P43NN62 Carrigaline, Ireland
- Shannon Applied Biotechnology Centre, Munster Technological University-Kerry, V92CX88 Tralee, Ireland
| | - Eileen R Gibney
- UCD School of Agriculture and Food Science, University College Dublin, D04V1W8 Belfiled, Dublin, Ireland
- UCD Institute of Food and Health, University College Dublin, D04V1W8 Belfield, Dublin, Ireland
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44
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Zhu X, Zhang J, Li M, Hou X, Liu A, Dong X, Wang W, Xing Q, Huang X, Wang S, Hu J, Bao Z. Cardiac performance and heart gene network provide dynamic responses of bay scallop Argopecten irradians irradians exposure to marine heatwaves. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 882:163594. [PMID: 37094688 DOI: 10.1016/j.scitotenv.2023.163594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/13/2023] [Accepted: 04/15/2023] [Indexed: 05/03/2023]
Abstract
The increased frequency of marine heat waves (MHWs) caused by global climate change is predicted to threaten the survival of economic bivalves, therefore having severely adverse effects on local ecological communities and aquaculture production. However, the study of scallops facing MHWs is still scarce, particularly in the scallop Argopecten irradians irradians, which has a significant share of "blue foods" in northern China. In the present study, bay scallop heart was selected to detect its cardiac performance, oxidative impairment and dynamic molecular responses, accompanied by assessing survival variations of individuals in the simulated scenario of MWHs (32 °C) with different time points (0 h, 6 h, 12 h, 24 h, 3 d, 6 d and 10 d). Notably, cardiac indices heart rate (HR), heart amplitude (HA), rate-amplitude product (RAP) and antioxidant enzyme activities superoxide dismutase (SOD) and catalase (CAT) all peaked at 24 h but sharply dropped on 3 d, coinciding with mortality. Transcriptome analysis revealed that the heart actively defended against heat stress at the acute stage (<24 h) via energy supply, misfolded proteins correction and enhanced signal transduction, whereas regulation of the defense response and apoptotic process combined with twice transcription initiation were the dominant responses at the chronic stage (3-10 d). In particular, HSP70 (heat shock protein 70), HSP90 and CALR (calreticulin) in the endoplasmic reticulum were identified as the hub genes (top 5 %) in the HR-associated module via WGCNA (weighted gene co-expression network analysis) trait-module analysis, followed by characterization of their family members and diverse expression patterns under heat exposure. Furthermore, RNAi-mediated knockdown of CALR expression (after 24 h) significantly weakened the thermotolerance of scallops, as evidenced by a drop of 1.31 °C in ABT (Arrhenius break temperature) between the siRNA-injected group and the control group. Our findings elucidated the dynamic molecular responses at the transcriptome level and verified the cardiac functions of CALR in bay scallops confronted with stimulated MHWs.
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Affiliation(s)
- Xinghai Zhu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Junhao Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Moli Li
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiujiang Hou
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Ancheng Liu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xuecheng Dong
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Wen Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Qiang Xing
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China.
| | - Xiaoting Huang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Shi Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China; Fang Zongxi Center for Marine Evo Devo, Ocean University of China, Qingdao, China
| | - Jingjie Hu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China; Laboratory of Tropical Marine Germplasm Resources and Breeding Engineering, Sanya Oceanographic Institution of the Ocean University of China (SOI-OUC), Sanya, China
| | - Zhenmin Bao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
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45
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Pörtner HO, Scholes RJ, Arneth A, Barnes DKA, Burrows MT, Diamond SE, Duarte CM, Kiessling W, Leadley P, Managi S, McElwee P, Midgley G, Ngo HT, Obura D, Pascual U, Sankaran M, Shin YJ, Val AL. Overcoming the coupled climate and biodiversity crises and their societal impacts. Science 2023; 380:eabl4881. [PMID: 37079687 DOI: 10.1126/science.abl4881] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Earth's biodiversity and human societies face pollution, overconsumption of natural resources, urbanization, demographic shifts, social and economic inequalities, and habitat loss, many of which are exacerbated by climate change. Here, we review links among climate, biodiversity, and society and develop a roadmap toward sustainability. These include limiting warming to 1.5°C and effectively conserving and restoring functional ecosystems on 30 to 50% of land, freshwater, and ocean "scapes." We envision a mosaic of interconnected protected and shared spaces, including intensively used spaces, to strengthen self-sustaining biodiversity, the capacity of people and nature to adapt to and mitigate climate change, and nature's contributions to people. Fostering interlinked human, ecosystem, and planetary health for a livable future urgently requires bold implementation of transformative policy interventions through interconnected institutions, governance, and social systems from local to global levels.
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Affiliation(s)
- H-O Pörtner
- Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
- Department of Biology and Chemistry, University of Bremen, Bremen, Germany
| | - R J Scholes
- Global Change Institute, University of the Witwatersrand, Johannesburg, South Africa
| | - A Arneth
- Atmospheric Environmental Research, Karlsruhe Institute of Technology (KIT), Garmisch-Partenkirchen, Germany
| | - D K A Barnes
- British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
| | - M T Burrows
- Scottish Association for Marine Science, Oban, Argyll, UK
| | - S E Diamond
- Department of Biology, Case Western Reserve University, Cleveland, OH, USA
| | - C M Duarte
- Red Sea Research Centre (RSRC), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- Computational Bioscience Research Centre (CBRC), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - W Kiessling
- Geozentrum Nordbayern, Friedrich-Alexander-Universität, Erlangen, Germany
| | - P Leadley
- Laboratoire d'Ecologie Systématique Evolution, Université Paris-Saclay, CNRS, AgroParisTech, 91400 Orsay, France
| | - S Managi
- Urban Institute, Kyushu University, Fukuoka, Japan
| | - P McElwee
- Department of Human Ecology, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - G Midgley
- Global Change Biology Group, Botany and Zoology Department, University of Stellenbosch, 7600 Stellenbosch, South Africa
| | - H T Ngo
- Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), Bonn, Germany
- Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, Rome, Italy
| | - D Obura
- Coastal Oceans Research and Development-Indian Ocean (CORDIO) East Africa, Mombasa, Kenya
- Global Climate Institute, University of Queensland, Brisbane, QLD 4072, Australia
| | - U Pascual
- Basque Centre for Climate Change (BC3), Leioa, Spain
- Basque Foundation for Science (Ikerbasque), Bilbao, Spain
- Centre for Development and Environment, University of Bern, Bern, Switzerland
| | - M Sankaran
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bellary Road, Bangalore, Karnataka, India
| | - Y J Shin
- Marine Biodiversity, Exploitation and Conservation (MARBEC), Institut de Recherche pour le Développement (IRD), Université Montpellier, Insititut Français de Recherche pour l'Exploitation de la Mer (IFREMER), CNRS, 34000 Montpellier, France
| | - A L Val
- Brazilian National Institute for Research of the Amazon, 69080-971 Manaus, Brazil
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46
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Crona BI, Wassénius E, Jonell M, Koehn JZ, Short R, Tigchelaar M, Daw TM, Golden CD, Gephart JA, Allison EH, Bush SR, Cao L, Cheung WWL, DeClerck F, Fanzo J, Gelcich S, Kishore A, Halpern BS, Hicks CC, Leape JP, Little DC, Micheli F, Naylor RL, Phillips M, Selig ER, Springmann M, Sumaila UR, Troell M, Thilsted SH, Wabnitz CCC. Four ways blue foods can help achieve food system ambitions across nations. Nature 2023; 616:104-112. [PMID: 36813964 PMCID: PMC10076219 DOI: 10.1038/s41586-023-05737-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 01/17/2023] [Indexed: 02/24/2023]
Abstract
Blue foods, sourced in aquatic environments, are important for the economies, livelihoods, nutritional security and cultures of people in many nations. They are often nutrient rich1, generate lower emissions and impacts on land and water than many terrestrial meats2, and contribute to the health3, wellbeing and livelihoods of many rural communities4. The Blue Food Assessment recently evaluated nutritional, environmental, economic and justice dimensions of blue foods globally. Here we integrate these findings and translate them into four policy objectives to help realize the contributions that blue foods can make to national food systems around the world: ensuring supplies of critical nutrients, providing healthy alternatives to terrestrial meat, reducing dietary environmental footprints and safeguarding blue food contributions to nutrition, just economies and livelihoods under a changing climate. To account for how context-specific environmental, socio-economic and cultural aspects affect this contribution, we assess the relevance of each policy objective for individual countries, and examine associated co-benefits and trade-offs at national and international scales. We find that in many African and South American nations, facilitating consumption of culturally relevant blue food, especially among nutritionally vulnerable population segments, could address vitamin B12 and omega-3 deficiencies. Meanwhile, in many global North nations, cardiovascular disease rates and large greenhouse gas footprints from ruminant meat intake could be lowered through moderate consumption of seafood with low environmental impact. The analytical framework we provide also identifies countries with high future risk, for whom climate adaptation of blue food systems will be particularly important. Overall the framework helps decision makers to assess the blue food policy objectives most relevant to their geographies, and to compare and contrast the benefits and trade-offs associated with pursuing these objectives.
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Affiliation(s)
- Beatrice I Crona
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden.
- Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Science, Stockholm, Sweden.
| | - Emmy Wassénius
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
- Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Science, Stockholm, Sweden
| | - Malin Jonell
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
- Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Science, Stockholm, Sweden
| | - J Zachary Koehn
- Stanford Center for Ocean Solutions, Stanford University, Stanford, CA, USA
| | - Rebecca Short
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
| | | | - Tim M Daw
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
| | - Christopher D Golden
- Dept. of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Dept. of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Dept. of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Jessica A Gephart
- Dept. of Environmental Science, American University, Washington, DC, USA
| | | | - Simon R Bush
- Wageningen University and Research, Wageningen, The Netherlands
| | - Ling Cao
- School of Oceanography, Shanghai Jiao Tong University, Shanghai, China
| | - William W L Cheung
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Jessica Fanzo
- Bloomberg School of Public Health, Berman Institute of Bioethics, Johns Hopkins University, Washington DC, USA
- Nitze School of Advanced International Studies, Johns Hopkins University, Washington, DC, USA
| | - Stefan Gelcich
- Instituto Milenio en Socio-Ecologia Costera, Pontificia Universidad Católica de Chile, Santiago, Chile
- Center of Applied Ecology and Sustainability, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Avinash Kishore
- International Food Policy Research Institute (IFPRI), New Delhi, India
| | - Benjamin S Halpern
- National Center for Ecological Analysis and Synthesis, UC Santa Barbara, Santa Barbara, CA, USA
- Bren School of Environmental Science and Management, UC Santa Barbara, Santa Barbara, CA, USA
| | | | - James P Leape
- Stanford Center for Ocean Solutions, Stanford University, Stanford, CA, USA
| | - David C Little
- Institute of Aquaculture, University of Stirling, Stirling, UK
| | - Fiorenza Micheli
- Stanford Center for Ocean Solutions, Stanford University, Stanford, CA, USA
- Hopkins Marine Station, Oceans Department, Stanford University, Pacific Grove, CA, USA
| | - Rosamond L Naylor
- Department of Earth System Science, Stanford University, Stanford, CA, USA
- Center on Food Security and the Environment, Stanford University, Stanford, CA, USA
| | | | - Elizabeth R Selig
- Stanford Center for Ocean Solutions, Stanford University, Stanford, CA, USA
| | - Marco Springmann
- Oxford Martin Programme on the Future of Food, University of Oxford, Oxford, UK
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - U Rashid Sumaila
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, British Columbia, Canada
- School of Public Policy and Global Affairs, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Max Troell
- Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Science, Stockholm, Sweden
- Beijer Institute of Ecological Economics, Royal Swedish Academy of Science, Stockholm, Sweden
| | | | - Colette C C Wabnitz
- Stanford Center for Ocean Solutions, Stanford University, Stanford, CA, USA
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, British Columbia, Canada
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Zhuxin L, Biao Y, Badamkhand D, Yifan C, Honghong S, Xiao X, Mingqian T, Zhixiang W, Chongjiang C. Carboxylated chitosan improved the stability of phycocyanin under acidified conditions. Int J Biol Macromol 2023; 233:123474. [PMID: 36720327 DOI: 10.1016/j.ijbiomac.2023.123474] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/13/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023]
Abstract
Phycocyanin, a natural blue colorant, derived from Spirulina platensis, is now widely used in the food industry. However, its main drawbacks are loss of color and denature of structure in an acidic environment. In this study, carboxylated chitosan (0.1 %-1 % w/v) was chosen as an additive in acid-denatured phycocyanin for preserving phycocyanin's blue color and natural structure. Zeta-potential and particle size revealed that the carboxylated chitosan with high negative charge adsorbed on phycocyanin and provided stronger electrostatic repulsion to overcome the protein aggregation. Ultraviolet-visible absorption spectrum and fluorescence spectroscopy showed that the carboxylated chitosan recovered the microenvironment of tetrapyrrole chromophores and β-subunits, which led the secondary structure changed and the trimers depolymerized into the monomers changed by the acidic environment. Furthermore, Fourier transform infrared spectroscopy revealed highly negatively charged carboxylated chitosan with the groups (NH2, COOH and OH) could restored the microenvironment of tetrapyrrole chromophores and β-subunits of phycocyanin, and interact with phycocyanin through hydrogen bonding, NH bonding, ionic bonding and van der Waals, which led to a change in secondary structure and depolymerization of trimers into monomers. Our study demonstrated the carboxylated chitosan played a beneficial role in recovering the structure of acid-denatured phycocyanin and its blue color.
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Affiliation(s)
- Li Zhuxin
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Yuan Biao
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China.
| | - Dashnyam Badamkhand
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Cao Yifan
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Shan Honghong
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Xu Xiao
- School of Life Science, Shaoxing University, Shaoxing, Zhejiang 312000, China
| | - Tan Mingqian
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034, China
| | - Wang Zhixiang
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Cao Chongjiang
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China.
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Kuempel CD, Frazier M, Verstaen J, Rayner PE, Blanchard JL, Cottrell RS, Froehlich HE, Gephart JA, Jacobsen NS, McIntyre PB, Metian M, Moran D, Nash KL, Többen J, Williams DR, Halpern BS. Environmental footprints of farmed chicken and salmon bridge the land and sea. Curr Biol 2023; 33:990-997.e4. [PMID: 36787746 DOI: 10.1016/j.cub.2023.01.037] [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: 09/27/2022] [Revised: 12/16/2022] [Accepted: 01/18/2023] [Indexed: 02/16/2023]
Abstract
Food production, particularly of fed animals, is a leading cause of environmental degradation globally.1,2 Understanding where and how much environmental pressure different fed animal products exert is critical to designing effective food policies that promote sustainability.3 Here, we assess and compare the environmental footprint of farming industrial broiler chickens and farmed salmonids (salmon, marine trout, and Arctic char) to identify opportunities to reduce environmental pressures. We map cumulative environmental pressures (greenhouse gas emissions, nutrient pollution, freshwater use, and spatial disturbance), with particular focus on dynamics across the land and sea. We found that farming broiler chickens disturbs 9 times more area than farming salmon (∼924,000 vs. ∼103,500 km2) but yields 55 times greater production. The footprints of both sectors are extensive, but 95% of cumulative pressures are concentrated into <5% of total area. Surprisingly, the location of these pressures is similar (85.5% spatial overlap between chicken and salmon pressures), primarily due to shared feed ingredients. Environmental pressures from feed ingredients account for >78% and >69% of cumulative pressures of broiler chicken and farmed salmon production, respectively, and could represent a key leverage point to reduce environmental footprints. The environmental efficiency (cumulative pressures per tonne of production) also differs geographically, with areas of high efficiency revealing further potential to promote sustainability. The propagation of environmental pressures across the land and sea underscores the importance of integrating food policies across realms and sectors to advance food system sustainability.
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Affiliation(s)
- Caitlin D Kuempel
- Australian Rivers Institute, Griffith University, Nathan, QLD 4111, Australia; National Center for Ecological Analysis & Synthesis, University of California, 1021 Anacapa St., Suite 300, Santa Barbara, CA 93101, USA.
| | - Melanie Frazier
- National Center for Ecological Analysis & Synthesis, University of California, 1021 Anacapa St., Suite 300, Santa Barbara, CA 93101, USA
| | - Juliette Verstaen
- National Center for Ecological Analysis & Synthesis, University of California, 1021 Anacapa St., Suite 300, Santa Barbara, CA 93101, USA
| | - Paul-Eric Rayner
- National Center for Ecological Analysis & Synthesis, University of California, 1021 Anacapa St., Suite 300, Santa Barbara, CA 93101, USA
| | - Julia L Blanchard
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7004, Australia; Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7004, Australia
| | - Richard S Cottrell
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7004, Australia; Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7004, Australia; Centre for Biodiversity and Conservation Science, School of Earth and Environmental Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Halley E Froehlich
- Environmental Studies, University of California, Santa Barbara, CA 93106, USA; Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA
| | - Jessica A Gephart
- Department of Environmental Science, American University, Washington, DC 20016, USA
| | - Nis Sand Jacobsen
- Technical University of Denmark, National Institute of Aquatic Resources, Kemitorvet 1, Lyngby 2800, Denmark
| | - Peter B McIntyre
- Department of Natural Resource and Environment, Cornell University, Ithaca, NY 14853, USA
| | - Marc Metian
- International Atomic Energy Agency - Marine Environment Laboratories (IAEA-MEL), Radioecology Laboratory, Principality of Monaco, Monaco
| | - Daniel Moran
- Industrial Ecology Programme, Department of Energy and Process Technology, Norwegian University of Science and Technology, Trondheim 7016, Norway
| | - Kirsty L Nash
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS 7004, Australia
| | - Johannes Többen
- GWS (Institute of Economic Structures Research), 49080 Osnabrück, Germany; Social Metabolism & Impacts, Potsdam Institute for Climate Impact Research, Member of the Leibniz Association, 14473 Potsdam, Germany
| | - David R Williams
- Sustainability Research Institute, School of Earth and Environment, University of Leeds, Leeds LS29JT, UK; Bren School of Environmental Science and Management, University of California, Santa Barbara, CA 93106, USA
| | - Benjamin S Halpern
- National Center for Ecological Analysis & Synthesis, University of California, 1021 Anacapa St., Suite 300, Santa Barbara, CA 93101, USA; Bren School of Environmental Science and Management, University of California, Santa Barbara, CA 93106, USA
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Mouritsen OG. Roe gastronomy. Int J Gastron Food Sci 2023. [DOI: 10.1016/j.ijgfs.2023.100712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
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Xu C, Su G, Zhao K, Wang H, Xu X, Li Z, Hu Q, Xu J. Assessment of greenhouse gases emissions and intensity from Chinese marine aquaculture in the past three decades. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 329:117025. [PMID: 36563445 DOI: 10.1016/j.jenvman.2022.117025] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/29/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Marine aquaculture is increasingly gaining importance as a source of food with high nutritional value. However, the expansion of aquaculture could be responsible for water contamination that influences the environmental quality of coastal ecosystems, and emissions of greenhouse gases (GHG) that affect global climate. China is the world's largest producer of marine aquaculture protein, which demands robust studies to assess the corresponding GHG emissions and intensity. To fill in this knowledge gap, the current study quantifies and analyzes GHG emissions and intensity (emission intensity is defined as GHG emissions per unit of production) from Chinese marine aquaculture (marine aquaculture production) over the past 30 years (1991-2020). The production of marine aquaculture comes from the China Fisheries Statistical Yearbooks. And the GHG emissions and intensity were calculated based on five sectors (commercial feed, trash fish, N2O, CH4, and energy) by Emission-Factor Approach. The results suggest that, excluding shellfish and algae, GHG emissions of ten coastal provinces (excluding Shanghai, Hong Kong, Taiwan, and Macau) increased from 2 Mt (109 kg) CO2-eq in 1991 to 25 Mt CO2-eq in 2020. In contrast, GHG emission intensity decreased in the same period from 7.33 (t CO2-eq/t production) to 6.34 (t CO2-eq/t production), indicating a progressive mitigation in GHG emissions per unit of product, hence sustainably satisfying a growing demand for food. As a result, China's marine aquaculture seems to be paving a promising way towards the neutrality of GHG emissions. In most provinces, GHG is on the rise, and only in Tianjin is on the decline in recent years. For the emissions intensity, the values of more than half provinces showed the downtrends. In addition, by considering the ratio of shellfish and algae, Chinese marine aquaculture can improve the net zero goal for GHG emissions of the sector. Finally, results also reveal for the first time the changes in taxonomic composition and spatial GHG emissions and intensity, providing new understanding and scientific bases to elaborate consistent mitigation strategies for an expanding global marine aquaculture.
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Affiliation(s)
- Congjun Xu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Guohuan Su
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; Center for Advanced Systems Understanding (CASUS), Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Gorlitz, Germany.
| | - Kangshun Zhao
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Bren School of Environmental Science & Management, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Huan Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, Hainan, 570228, China
| | - Xiaoqi Xu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; College of Fisheries and Life Science, Dalian Ocean University, Dalian, 116000, China
| | - Ziqi Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiang Hu
- Center for Microalgal Biotechnology and Biofuels, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China; Key Laboratory for Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Jun Xu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
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