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Fiorella KJ, Bageant ER, Thilsted SH, Heilpern SA. Commercially traded fish portfolios mask household utilization of biodiversity in wild food systems. Proc Natl Acad Sci U S A 2024; 121:e2403691121. [PMID: 39018198 PMCID: PMC11287268 DOI: 10.1073/pnas.2403691121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/24/2024] [Indexed: 07/19/2024] Open
Abstract
The global biodiversity that underpins wild food systems-including fisheries-is rapidly declining. Yet, we often have only a limited understanding of how households use and benefit from biodiversity in the ecosystems surrounding them. Explicating these relationships is critical to forestall and mitigate the effects of biodiversity declines on food and nutrition security. Here, we quantify how biodiversity filters from ecosystems to household harvest, consumption, and sale, and how ecological traits and household characteristics shape these relationships. We used a unique, integrated ecological (40 sites, quarterly data collection) and household survey (n = 414, every 2 mo data collection) dataset collected over 3 y in rice field fisheries surrounding Cambodia's Tonlé Sap, one of Earth's most productive and diverse freshwater systems. While ecosystem biodiversity was positively associated with household catch, consumption, and sold biodiversity, households consumed an average of 43% of the species present in the ecosystem and sold only 9%. Larger, less nutritious, and more common species were disproportionally represented in portfolios of commercially traded species, while consumed species mirrored catches. The relationship between ecosystem and consumed biodiversity was remarkably consistent across variation in household fishing effort, demographics, and distance to nearest markets. Poorer households also consumed more species, underscoring how wild food systems may most benefit the vulnerable. Our findings amplify concerns about the impacts of biodiversity loss on our global food systems and highlight that utilization of biodiversity for consumption may far exceed what is commercially traded.
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Affiliation(s)
- Kathryn J. Fiorella
- Department of Public and Ecosystem Health, Cornell University, Ithaca, NY14850
| | | | - Shakuntala H. Thilsted
- Nutrition, Health and Food Security Impact Area Platform, Consultative Group for International Agricultural Research, Washington, DC20005
| | - Sebastian A. Heilpern
- Department of Public and Ecosystem Health, Cornell University, Ithaca, NY14850
- Department of Natural Resources and the Environment, Cornell University, Ithaca, NYUSA 14850
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2
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Bennett A, Belant JL. The global nutritional value of recreational inland fisheries. NATURE FOOD 2024; 5:353-354. [PMID: 38741001 DOI: 10.1038/s43016-024-00965-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Affiliation(s)
- Abigail Bennett
- Wild Foods Institute, Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, USA.
| | - Jerrold L Belant
- Wild Foods Institute, Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, USA
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3
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Lynch AJ, Embke HS, Nyboer EA, Wood LE, Thorpe A, Phang SC, Viana DF, Golden CD, Milardi M, Arlinghaus R, Baigun C, Beard TD, Cooke SJ, Cowx IG, Koehn JD, Lyach R, Potts W, Robertson AM, Schmidhuber J, Weyl OLF. Inland recreational fisheries contribute nutritional benefits and economic value but are vulnerable to climate change. NATURE FOOD 2024; 5:433-443. [PMID: 38741002 DOI: 10.1038/s43016-024-00961-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 03/12/2024] [Indexed: 05/16/2024]
Abstract
Inland recreational fishing is primarily considered a leisure-driven activity in freshwaters, yet its harvest can contribute to food systems. Here we estimate that the harvest from inland recreational fishing equates to just over one-tenth of all reported inland fisheries catch globally. The estimated total consumptive use value of inland recreational fish destined for human consumption may reach US$9.95 billion annually. We identify Austria, Canada, Germany and Slovakia as countries above the third quantile for nutrition, economic value and climate vulnerability. These results have important implications for populations dependent on inland recreational fishing for food. Our findings can inform climate adaptation planning for inland recreational fisheries, particularly those not currently managed as food fisheries.
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Affiliation(s)
- Abigail J Lynch
- National Climate Adaptation Science Center, United States Geological Survey, Reston, VA, USA.
| | - Holly S Embke
- Midwest Climate Adaptation Science Center, United States Geological Survey, St. Paul, MN, USA
| | - Elizabeth A Nyboer
- Canadian Centre for Evidence-Based Conservation, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, Ontario, Canada
- Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Louisa E Wood
- Centre for Blue Governance, University of Portsmouth, Portsmouth, UK
| | - Andy Thorpe
- Centre for Blue Governance, University of Portsmouth, Portsmouth, UK
| | | | - Daniel F Viana
- Department of Nutrition, Department of Environmental Health, Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Christopher D Golden
- Department of Nutrition, Department of Environmental Health, Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Marco Milardi
- Southern Indian Ocean Fisheries Agreement (SIOFA/APSOI), Saint-Denis, France
| | - Robert Arlinghaus
- Department of Fish Biology, Fisheries and Aquaculture, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
- Division of Integrative Fisheries Management, Faculty of Life Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Claudio Baigun
- Institute of Environmental Research and Engineering, National University of San Martin-CONICET, Buenos Aires, Argentina
| | - T Douglas Beard
- National Climate Adaptation Science Center, United States Geological Survey, Reston, VA, USA
| | - Steven J Cooke
- Canadian Centre for Evidence-Based Conservation, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, Ontario, Canada
| | - Ian G Cowx
- International Fisheries Institute, University of Hull, Hull, UK
| | - John D Koehn
- Applied Aquatic Ecology, Arthur Rylah Institute for Environmental Research, Department of Energy, Environment and Climate Action, Heidelberg, Victoria, Australia
- Gulbali Institute for Agriculture, Water and Environment, Charles Sturt University, Albury, New South Wales, Australia
| | - Roman Lyach
- Institute for Evaluations and Social Analyses (INESAN), Prague, Czech Republic
| | - Warren Potts
- Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
| | - Ashley M Robertson
- Department of Environmental Science and Policy, George Mason University, Fairfax, VA, USA
| | | | - Olaf L F Weyl
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
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4
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Parisek CA, De Castro FA, Colby JD, Leidy GR, Sadro S, Rypel AL. Reservoir ecosystems support large pools of fish biomass. Sci Rep 2024; 14:9428. [PMID: 38658610 PMCID: PMC11043325 DOI: 10.1038/s41598-024-59730-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: 11/30/2023] [Accepted: 04/15/2024] [Indexed: 04/26/2024] Open
Abstract
Humans increasingly dominate Earth's natural freshwater ecosystems, but biomass production of modified ecosystems is rarely studied. We estimate potential fish total standing stock in USA reservoirs is 3.4 billion (B) kg, and approximate annual secondary production is 4.5 B kg y-1. We also observe varied and non-linear trends in reservoir fish biomass over time, thus previous assertions that reservoir fisheries decline over time are not universal. Reservoirs are globally relevant pools of freshwater fisheries, in part due to their immense limnetic footprint and spatial extent. This study further shows that reservoir ecosystems play major roles in food security and fisheries conservation. We encourage additional effort be expended to effectively manage reservoir environments for the good of humanity, biodiversity, and fish conservation.
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Affiliation(s)
- Christine A Parisek
- Department of Wildlife, Fish and Conservation Biology, University of California Davis, Davis, CA, 95616, USA.
- Center for Watershed Sciences, University of California Davis, Davis, CA, 95616, USA.
| | - Francine A De Castro
- Department of Environmental Toxicology, University of California Davis, Davis, CA, 95616, USA
- Bodega Marine Laboratory, University of California Davis, Bodega Bay, CA, 94923, USA
| | - Jordan D Colby
- Department of Wildlife, Fish and Conservation Biology, University of California Davis, Davis, CA, 95616, USA
- Department of Environmental Toxicology, University of California Davis, Davis, CA, 95616, USA
- Bodega Marine Laboratory, University of California Davis, Bodega Bay, CA, 94923, USA
| | - George R Leidy
- AECOM, Sacramento, CA, 95811, USA
- Stillwater Sciences, Davis, CA, 95618, USA
| | - Steve Sadro
- Department of Environmental Science and Policy, University of California Davis, Davis, CA, 95616, USA
| | - Andrew L Rypel
- Department of Wildlife, Fish and Conservation Biology, University of California Davis, Davis, CA, 95616, USA
- Center for Watershed Sciences, University of California Davis, Davis, CA, 95616, USA
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5
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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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6
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Nunes CB, Vieira KC, Pereyra PER, Hallwass G, Cunha CV, Silvano RAM. 'From the sky to the ground': fishers' knowledge, landscape analysis and hydrological data indicate long-term environmental changes in Amazonian clear water rivers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166763. [PMID: 37666343 DOI: 10.1016/j.scitotenv.2023.166763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/22/2023] [Accepted: 08/31/2023] [Indexed: 09/06/2023]
Abstract
Fishers possess detailed local ecological knowledge (LEK) which can be a valuable resource for tracking long-term environmental changes in less studied tropical rivers. Our goal was to investigate such changes in three clear water rivers in the Brazilian Amazon, focusing on hydrology, water quality and land cover. Additionally, we aimed to compare these changes among three rivers (Trombetas, Tapajós and Tocantins) representing a potential gradient of environmental changes. We interviewed 129 fishers (67 in Tapajós, 33 in Tocantins and 29 in Trombetas), and analyzed temporal series on land cover and hydrology respectively through maps produced by the project MapBiomas, and data from the Brazilian National Water Agency across the last 34 years (from 1985 to 2019). The complementary analyses of these three databases (mapping, hydrological data and fishers' knowledge) revealed environmental changes in the studied rivers. The maps showed a gradient of anthropic changes on land cover, from the less altered Trombetas river, the moderately altered Tapajós and the more intensely changed landscape in the Tocantins River. Fishers from the Tocantins River reported a greater variety of negative changes in water quality related to anthropic actions, such as dams, deforestation, and pollution. Additionally, most fishers indicated hydrological changes making the Tocantins River drier in more recent years, which would cause negative effects on fish populations. In the Tapajós River, fishers mentioned more varied hydrological patterns and negative effects on water quality linked to mining activities, whereas in Trombetas fishers perceived increased floods. The changes mentioned by the interviewed fishers matched observed trends from hydrological data indicating a trend of increasing droughts in the more impacted Tocantins River. Fishers' knowledge provided exclusive 'on the ground' data to track long-term changes on local hydrology and water quality, as well as inform the effects of these changes on fish and fisheries.
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Affiliation(s)
- Carolina B Nunes
- Programa de Pós-graduação em Ecologia e Departamento de Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.
| | - Kaluan C Vieira
- Programa de Pós-graduação em Ecologia e Departamento de Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Paula E R Pereyra
- Programa de Pós-graduação em Ecologia e Departamento de Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Gustavo Hallwass
- Fisheries and Food Institute (FIFO), Rio de Janeiro, Brazil; Instituto de Ciência, Tecnologia e Inovação, Programa de Pós-Graduação em Ecologia Aplicada, Universidade Federal de Lavras (UFLA), Lavras, MG, Brazil; Programa de Pós-Graduação em Ecologia Aquática e Pesca, Universidade Federal do Pará (UFPA), Belém, PA, Brazil
| | - Cristiane V Cunha
- Faculdade de Educação do Campo, Universidade Federal do Sul e Sudeste do Pará (UNIFESSPA), Marabá, PA, Brazil
| | - Renato A M Silvano
- Programa de Pós-graduação em Ecologia e Departamento de Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil; Fisheries and Food Institute (FIFO), Rio de Janeiro, Brazil
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7
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Cheung WWL, Maire E, Oyinlola MA, Robinson JPW, Graham NAJ, Lam VWY, MacNeil MA, Hicks CC. Climate change exacerbates nutrient disparities from seafood. NATURE CLIMATE CHANGE 2023; 13:1242-1249. [PMID: 37927330 PMCID: PMC10624626 DOI: 10.1038/s41558-023-01822-1] [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: 11/26/2022] [Accepted: 08/24/2023] [Indexed: 11/07/2023]
Abstract
Seafood is an important source of bioavailable micronutrients supporting human health, yet it is unclear how micronutrient production has changed in the past or how climate change will influence its availability. Here combining reconstructed fisheries databases and predictive models, we assess nutrient availability from fisheries and mariculture in the past and project their futures under climate change. Since the 1990s, availabilities of iron, calcium and omega-3 from seafood for direct human consumption have increased but stagnated for protein. Under climate change, nutrient availability is projected to decrease disproportionately in tropical low-income countries that are already highly dependent on seafood-derived nutrients. At 4 oC of warming, nutrient availability is projected to decline by ~30% by 2100 in low income countries, while at 1.5-2.0 oC warming, decreases are projected to be ~10%. We demonstrate the importance of effective mitigation to support nutritional security of vulnerable nations and global health equity.
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Affiliation(s)
- William W. L. Cheung
- Changing Ocean Research Unit, Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia Canada
| | - Eva Maire
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Muhammed A. Oyinlola
- Changing Ocean Research Unit, Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia Canada
| | | | | | - Vicky W. Y. Lam
- Changing Ocean Research Unit, Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia Canada
| | - M. Aaron MacNeil
- Ocean Frontier Institute, Department of Biology, Dalhousie University, Halifax, Nova Scotia Canada
- Department of Mathematics and Statistics, Dalhousie University, Halifax, Nova Scotia Canada
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8
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Reis-Filho JA, Ramos-Filho F, Castello L, Giarrizzo T. -I fish, therefore I monitor: Participatory monitoring to assess inland small-scale fisheries. ENVIRONMENTAL MANAGEMENT 2023:10.1007/s00267-023-01819-8. [PMID: 37060368 DOI: 10.1007/s00267-023-01819-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 04/03/2023] [Indexed: 06/19/2023]
Abstract
Analysis of small-scale inland fisheries (SSIFs) is often highly dispersed and tends not reflect the true magnitude of their contribution to society. This is partly due to the insufficient attention given to this sector by the relevant authorities, in addition to its highly diverse characteristics, with complex patterns of operation in a wide range of systems, often in remote areas. Here, by integrating fishers as participatory fishery monitors, we provide fishery-dependent estimates of yields, the biological attributes of the fish species, and the spatiotemporal dynamics of the fisheries of lakes on the floodplain of the São Francisco basin in northeastern Brazil. As the fishers were willing participates in the monitoring, the results revealed well-structured artisanal fishing activities, with the lake system providing high-profile fish harvests from both monthly and annual perspectives. The spatial distribution of fishing effort reflected the adaptation of the fishers to the flood cycle of the river, in order to maintain high fishery productivity throughout the year. The results also indicate that participatory monitoring can help to overcome knowledge gaps and provide a database that is readily applicable to management needs at both local and regional scales. As Brazil is one few world's nations that no longer have national fishing monitoring program, participatory monitoring represents a low-cost solution for the credible and useful data on small-scale fisheries. It would thus appear to be extremely worthwhile to invest in the empowerment of communities in order to overcome the historic vulnerability of productive sector and the food security of the populations that depend on these fisheries.
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Affiliation(s)
- José Amorim Reis-Filho
- ICHTUS Ambiente & Sociedade, 41904-250, Salvador, BA, Brazil.
- Graduate Program in Ecology: Theory, Application and Values, UFBA, 40170-115, Salvador, BA, Brazil.
| | - Fecundo Ramos-Filho
- Traditional Specialist - Associação de Pescadores e Pescadoras da Ilha de Zezé, 41904-250, Malhadas, BA, Brazil
| | - Leandro Castello
- College of Natural Resources and Environment, Virginia Tech, Fish and Wildlife Conservation, Blacksburg, USA
| | - Tommaso Giarrizzo
- Instituto de Ciênicas do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil
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9
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Castello L, Carvalho F, Ateba NOO, Busanga AK, Ickowitz A, Frimpong E. An approach to assess data-less small-scale fisheries: examples from Congo rivers. REVIEWS IN FISH BIOLOGY AND FISHERIES 2023; 33:1-18. [PMID: 37360580 PMCID: PMC10030197 DOI: 10.1007/s11160-023-09770-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 02/01/2023] [Indexed: 06/28/2023]
Abstract
Small-scale fisheries (SSF) account for much of the global fish catch, but data to assess them often do not exist, impeding assessments of their historical dynamics and status. Here, we propose an approach to assess 'data-less' SSF using local knowledge to produce data, life history theory to describe their historical multispecies dynamics, and length-based reference points to evaluate stock status. We demonstrate use of this approach in three data-less SSFs of the Congo Basin. Fishers' recalls of past fishing events indicated fish catch declined by 65-80% over the last half-century. Declines in and depletion of many historically important species reduced the diversity of exploited species, making the species composition of the catch more homogenous in recent years. Length-at-catch of 11 of the 12 most important species were below their respective lengths-at-maturity and optimal lengths (obtained from Fishbase) in recent years, indicating overfishing. The most overfished species were large-bodied and found in the Congo mainstem. These results show the approach can suitably assess data-less SSF. Fishers' knowledge produced data at a fraction of the cost and effort of collecting fisheries landings data. Historical and current data on fish catch, length-at-catch, and species diversity can inform management and restoration efforts to curb shifting baselines of these fisheries. Classification of stock status allows prioritizing management efforts. The approach is easy to apply and generates intuitive results, having potential to complement the toolkits of researchers and managers working in SSF and engage stakeholders in decision-making processes. Supplementary Information The online version contains supplementary material available at 10.1007/s11160-023-09770-x.
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Affiliation(s)
- Leandro Castello
- Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA USA
| | - Felipe Carvalho
- Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA USA
| | | | - Alidor Kankonda Busanga
- Department of Hydrobiology, University of Kisangani, Kisangani, Democratic Republic of the Congo
| | - Amy Ickowitz
- Center for International Forestry Research, Bogor, Indonesia
| | - Emmanuel Frimpong
- Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA USA
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Manohar S, Downs S, Shaikh S, Mak S, Sok S, Graham E, Miachon L, Fanzo J. Riverine food environments and food security: a case study of the Mekong River, Cambodia. Bull World Health Organ 2023; 101:140-148. [PMID: 36733629 PMCID: PMC9874365 DOI: 10.2471/blt.22.288830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/14/2022] [Accepted: 11/27/2022] [Indexed: 02/04/2023] Open
Abstract
Rivers are critical, but often overlooked, parts of food systems. They have multiple functions that support the food security, nutrition, health and livelihoods of the communities surrounding them. However, given current unsustainable food system practices, damming and climate change, the majority of the world's largest rivers are increasingly susceptible to environmental degradation, with negative implications for the communities that rely on them. Here we describe the dynamism and multifaceted nature of rivers as food environments (i.e. the place within food systems where people obtain their food) and their role in securing food security including improved diets and overall health. We also provide a conceptual framework that explain rivers as food environments within the broader food system and describe approaches to characterizing these food environments to better inform our understanding of how they influence food security and nutrition outcomes. Applying this framework to the Mekong River in Cambodia, we describe rivers as multifaceted wild food environments embedded within ecosystems, sociocultural and political environments and sectors of influence. We also explain the ways in which individual factors might influence how communities interact with this food environment. Developing and articulating food-related, ecosystem-specific frameworks and their constructs can guide implementation of policies aimed to improve specific public health or environmental sustainability outcomes. Our conceptual framework incorporates the multiple dimensions of rivers, which will aid future work and public health policy framing to better describe, understand and intervene to ensure protection of rivers' biodiversity and ecosystems as well as food security, health and livelihoods.
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Affiliation(s)
- Swetha Manohar
- Global Food Ethics Policy Program, School of Advanced International Studies, 1776 Massachusetts Avenue, WashingtonDC, 20007, United States of America (USA)
| | - Shauna Downs
- Department of Health Behavior, Society and Policy, Rutgers School of Public Health, Piscataway, USA
| | - Sabina Shaikh
- Committee on Environment, Geography and Urbanization, University of Chicago, Chicago, USA
| | - Sithirith Mak
- Department of Natural Resource Management, Royal University of Phnom Penh, Phnom Penh, Cambodia
| | - Serey Sok
- Research Office, Royal University of Phnom Penh, Phnom Penh, Cambodia
| | - Elizabeth Graham
- Global Food Ethics Policy Program, Johns Hopkins School of Public Health, WashingtonDC, USA
| | - Lais Miachon
- Global Food Ethics Policy Program, Johns Hopkins School of Public Health, WashingtonDC, USA
| | - Jessica Fanzo
- Global Food Ethics Policy Program, School of Advanced International Studies, 1776 Massachusetts Avenue, WashingtonDC, 20007, United States of America (USA)
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11
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Dias GKS, Siqueira-Souza FK, Souza LA, Freitas CEC. The consumption of fish by the riverine population of the lower Solimões River, Amazonas, Brazil. BRAZ J BIOL 2023; 83:e271572. [PMID: 37098963 DOI: 10.1590/1519-6984.271572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 03/20/2023] [Indexed: 04/27/2023] Open
Abstract
The riverine population of the Amazon Basin are among the largest consumers of fish in the world, but the consumption patterns could be regionally distinct. Moreover, their total fish catches are not fully known. The objective of this work was to estimate the per capita fish consumption of the riverine people that inhabit the Paciência Island (Iranduba, Amazonas), where there is a fishing agreement in force. A total of 273 questionnaires were applied during the first two weeks of each month between April 2021 and March 2022. The sample unit was the residences. The questionnaire contained questions about the species captured and their quantities. Consumption was calculated by dividing the average monthly capture with the average number of residents per household interviewed, which was multiplied by the number of questionnaires applied. Thirty groups of consumed fish species belonging to 17 families and 5 orders were recorded. The total catch was 3,388.35 kg and the highest monthly catch was 602.60 kg during the falling-water season in October. Daily per capita fish consumption averaged 66.13 ± 29.21 g/day, with a peak of 116.45 g/day during the falling-water season in August. The high fish consumption rate highlighted the importance of fisheries management to food security and the maintenance of the community's lifestyle.
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Affiliation(s)
- G K S Dias
- ªInstituto Nacional de Pesquisas na Amazônia - INPA, Programa de Pós-graduação em Biologia de Água Doce e Pesca Interior, Laboratório de Ecologia Pesqueira, Manaus, AM, Brasil
| | - F K Siqueira-Souza
- ᵇUniversidade Federal do Amazonas - UFAM, Departamento de Ciências Pesqueiras, Manaus, AM, Brasil
| | - L A Souza
- ᵇUniversidade Federal do Amazonas - UFAM, Departamento de Ciências Pesqueiras, Manaus, AM, Brasil
| | - C E C Freitas
- ᵇUniversidade Federal do Amazonas - UFAM, Departamento de Ciências Pesqueiras, Manaus, AM, Brasil
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12
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Chaplin-Kramer R, Neugarten RA, Sharp RP, Collins PM, Polasky S, Hole D, Schuster R, Strimas-Mackey M, Mulligan M, Brandon C, Diaz S, Fluet-Chouinard E, Gorenflo LJ, Johnson JA, Kennedy CM, Keys PW, Longley-Wood K, McIntyre PB, Noon M, Pascual U, Reidy Liermann C, Roehrdanz PR, Schmidt-Traub G, Shaw MR, Spalding M, Turner WR, van Soesbergen A, Watson RA. Mapping the planet's critical natural assets. Nat Ecol Evol 2023; 7:51-61. [PMID: 36443466 PMCID: PMC9834042 DOI: 10.1038/s41559-022-01934-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 10/13/2022] [Indexed: 11/30/2022]
Abstract
Sustaining the organisms, ecosystems and processes that underpin human wellbeing is necessary to achieve sustainable development. Here we define critical natural assets as the natural and semi-natural ecosystems that provide 90% of the total current magnitude of 14 types of nature's contributions to people (NCP), and we map the global locations of these critical natural assets at 2 km resolution. Critical natural assets for maintaining local-scale NCP (12 of the 14 NCP) account for 30% of total global land area and 24% of national territorial waters, while 44% of land area is required to also maintain two global-scale NCP (carbon storage and moisture recycling). These areas overlap substantially with cultural diversity (areas containing 96% of global languages) and biodiversity (covering area requirements for 73% of birds and 66% of mammals). At least 87% of the world's population live in the areas benefitting from critical natural assets for local-scale NCP, while only 16% live on the lands containing these assets. Many of the NCP mapped here are left out of international agreements focused on conserving species or mitigating climate change, yet this analysis shows that explicitly prioritizing critical natural assets and the NCP they provide could simultaneously advance development, climate and conservation goals.
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Affiliation(s)
- Rebecca Chaplin-Kramer
- SPRING, Oakland, CA, USA. .,Institute on the Environment, University of Minnesota, St. Paul, MN, USA. .,Natural Capital Project, Stanford University, Stanford, CA, USA.
| | - Rachel A. Neugarten
- grid.5386.8000000041936877XDept. of Natural Resources & Environment, Cornell University, Ithaca, NY USA ,grid.421477.30000 0004 0639 1575Conservation International, Arlington, VA USA
| | | | - Pamela M. Collins
- grid.421477.30000 0004 0639 1575Conservation International, Arlington, VA USA
| | - Stephen Polasky
- grid.17635.360000000419368657Dept. of Applied Economics, University of Minnesota, St. Paul, MN USA
| | - David Hole
- grid.421477.30000 0004 0639 1575Conservation International, Arlington, VA USA
| | - Richard Schuster
- grid.34428.390000 0004 1936 893XDept. of Biology, 1125 Colonel By Drive, Carleton University, Ottawa, ON Canada ,grid.436484.90000 0004 0496 3533Nature Conservancy of Canada, Toronto, Ontario Canada
| | | | - Mark Mulligan
- grid.13097.3c0000 0001 2322 6764Dept. of Geography, King’s College London, Bush House, London, UK
| | - Carter Brandon
- grid.433793.90000 0001 1957 4854World Resources Institute, Washington, DC USA
| | - Sandra Diaz
- grid.509694.70000 0004 0427 3591Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET, Casilla de Correo 495, Córdoba, Argentina ,grid.10692.3c0000 0001 0115 2557Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, Departamento de Diversidad Biológica y Ecología, Córdoba, Argentina
| | - Etienne Fluet-Chouinard
- grid.168010.e0000000419368956Dept. of Earth System Science, Stanford University, Stanford, CA USA
| | - L. J. Gorenflo
- grid.29857.310000 0001 2097 4281Dept. of Landscape Architecture, Penn State University, University Park, PA USA
| | - Justin A. Johnson
- grid.17635.360000000419368657Dept. of Applied Economics, University of Minnesota, St. Paul, MN USA
| | - Christina M. Kennedy
- grid.422375.50000 0004 0591 6771Global Protect Oceans, Lands and Waters Program, The Nature Conservancy, Fort Collins, CO USA
| | - Patrick W. Keys
- grid.47894.360000 0004 1936 8083School of Global Environmental Sustainability, Colorado State University, Fort Collins, CO USA
| | - Kate Longley-Wood
- grid.422375.50000 0004 0591 6771The Nature Conservancy, 4245 Fairfax Drive, Arlington, VA USA
| | - Peter B. McIntyre
- grid.5386.8000000041936877XDept. of Natural Resources & Environment, Cornell University, Ithaca, NY USA
| | - Monica Noon
- grid.421477.30000 0004 0639 1575Conservation International, Arlington, VA USA
| | - Unai Pascual
- grid.423984.00000 0001 2002 0998Basque Centre for Climate Change, Sede Building 1, 1st floor. Scientific Campus of the University of the Basque Country, Leioa, Spain ,grid.424810.b0000 0004 0467 2314Basque Foundation for Science, Ikerbasque, Bilbao, Spain ,grid.5734.50000 0001 0726 5157Centre for Development and Environment, University of Bern, Bern, Switzerland
| | | | | | | | - M. Rebecca Shaw
- grid.439064.c0000 0004 0639 3060World Wildlife Fund, San Francisco, CA USA
| | - Mark Spalding
- grid.422375.50000 0004 0591 6771The Nature Conservancy, 4245 Fairfax Drive, Arlington, VA USA ,grid.9024.f0000 0004 1757 4641Dept. of Physical, Earth, and Environmental Sciences, University of Siena, Pian dei Mantellini, Siena, Italy
| | - Will R. Turner
- grid.421477.30000 0004 0639 1575Conservation International, Arlington, VA USA
| | - Arnout van Soesbergen
- grid.13097.3c0000 0001 2322 6764Dept. of Geography, King’s College London, Bush House, London, UK ,grid.439150.a0000 0001 2171 2822UN Environment World Conservation Monitoring Centre, Cambridge, UK
| | - Reg A. Watson
- grid.1009.80000 0004 1936 826XInstitute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Battery Point, Hobart, Tasmania Australia
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Robinson JPW, Mills DJ, Asiedu GA, Byrd K, Mancha Cisneros MDM, Cohen PJ, Fiorella KJ, Graham NAJ, MacNeil MA, Maire E, Mbaru EK, Nico G, Omukoto JO, Simmance F, Hicks CC. Small pelagic fish supply abundant and affordable micronutrients to low- and middle-income countries. NATURE FOOD 2022; 3:1075-1084. [PMID: 37118295 DOI: 10.1038/s43016-022-00643-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 10/20/2022] [Indexed: 04/30/2023]
Abstract
Wild-caught fish provide an irreplaceable source of essential nutrients in food-insecure places. Fishers catch thousands of species, yet the diversity of aquatic foods is often categorized homogeneously as 'fish', obscuring an understanding of which species supply affordable, nutritious and abundant food. Here, we use catch, economic and nutrient data on 2,348 species to identify the most affordable and nutritious fish in 39 low- and middle-income countries. We find that a 100 g portion of fish cost between 10 and 30% of the cheapest daily diet, with small pelagic fish (herring, sardine, anchovy) being the cheapest nutritious fish in 72% of countries. In sub-Saharan Africa, where nutrient deficiencies are rising, <20% of small pelagic catch would meet recommended dietary fish intakes for all children (6 months to 4 years old) living near to water bodies. Nutrition-sensitive policies that ensure local supplies and promote consumption of wild-caught fish could help address nutrient deficiencies in vulnerable populations.
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Affiliation(s)
| | - David J Mills
- WorldFish, Jalan Batu Maung, Batu Maung, Bayan Lepas, Malaysia
- Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, Australia
| | | | - Kendra Byrd
- WorldFish, Jalan Batu Maung, Batu Maung, Bayan Lepas, Malaysia
- Natural Resources Institute, University of Greenwich, Chatham, UK
| | - Maria Del Mar Mancha Cisneros
- Nicholas School of the Environment, Duke University, Durham, NC, USA
- Scripps Institution of Oceanography, University of California, San Diego, CA, USA
| | - Philippa J Cohen
- WorldFish, Jalan Batu Maung, Batu Maung, Bayan Lepas, Malaysia
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Kathryn J Fiorella
- Department of Public & Ecosystem Health, Cornell University, Ithaca, NY, USA
| | | | - M Aaron MacNeil
- Ocean Frontier Institute, Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Eva Maire
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Emmanuel K Mbaru
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Kenya Marine and Fisheries Research Institute, Mombasa, Kenya
| | - Gianluigi Nico
- Fisheries and Aquaculture Department, Food and Agriculture Organization of the United Nations, Rome, Italy
| | - Johnstone O Omukoto
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Kenya Marine and Fisheries Research Institute, Mombasa, Kenya
| | - Fiona Simmance
- WorldFish, Jalan Batu Maung, Batu Maung, Bayan Lepas, Malaysia
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14
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Global dataset of species-specific inland recreational fisheries harvest for consumption. Sci Data 2022; 9:488. [PMID: 35948590 PMCID: PMC9365780 DOI: 10.1038/s41597-022-01604-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 08/02/2022] [Indexed: 11/08/2022] Open
Abstract
Inland recreational fisheries, found in lakes, rivers, and other landlocked waters, are important to livelihoods, nutrition, leisure, and other societal ecosystem services worldwide. Although recreationally-caught fish are frequently harvested and consumed by fishers, their contribution to food and nutrition has not been adequately quantified due to lack of data, poor monitoring, and under-reporting, especially in developing countries. Beyond limited global harvest estimates, few have explored species-specific harvest patterns, although this variability has implications for fisheries management and food security. Given the continued growth of the recreational fishery sector, understanding inland recreational fish harvest and consumption rates represents a critical knowledge gap. Based on a comprehensive literature search and expert knowledge review, we quantified multiple aspects of global inland recreational fisheries for 81 countries spanning ~192 species. For each country, we assembled recreational fishing participation rate and estimated species-specific harvest and consumption rate. This dataset provides a foundation for future assessments, including understanding nutritional and economic contributions of inland recreational fisheries. Measurement(s) | inland recreational fisheries harvest | Technology Type(s) | Module 4: Literature References | Sample Characteristic - Organism | Osteichthyes | Sample Characteristic - Environment | inland waters | Sample Characteristic - Location | Global |
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15
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Simmance FA, Nico G, Funge-Smith S, Basurto X, Franz N, Teoh SJ, Byrd KA, Kolding J, Ahern M, Cohen PJ, Nankwenya B, Gondwe E, Virdin J, Chimatiro S, Nagoli J, Kaunda E, Thilsted SH, Mills DJ. Proximity to small-scale inland and coastal fisheries is associated with improved income and food security. COMMUNICATIONS EARTH & ENVIRONMENT 2022; 3:174. [PMID: 35966220 PMCID: PMC9362682 DOI: 10.1038/s43247-022-00496-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Poverty and food insecurity persist in sub-Saharan Africa. We conducted a secondary analysis of nationally representative data from three sub-Saharan Africa countries (Malawi, Tanzania, and Uganda) to investigate how both proximity to and engagement with small-scale fisheries are associated with household poverty and food insecurity. Results from the analysis suggest that households engaged in small-scale fisheries were 9 percentage points less likely to be poor than households engaged only in agriculture. Households living in proximity to small-scale fisheries (average distance 2.7 km) were 12.6 percentage points more likely to achieve adequate food security and were 15 percentage points less likely to be income poor, compared to the most distant households. Households distant from fishing grounds (>5 km) were 1.5 times more likely to consume dried fish compared to households living close. Conserving the flow of benefits from small-scale fisheries is important for meeting the Sustainable Development Goals in the region.
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Affiliation(s)
| | - Gianluigi Nico
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations, Rome, Italy
| | - Simon Funge-Smith
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations, Rome, Italy
| | - Xavier Basurto
- Nicholas School of the Environment, Duke University, Durham, USA
| | - Nicole Franz
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations, Rome, Italy
| | | | | | | | - Molly Ahern
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations, Rome, Italy
| | | | | | - Edith Gondwe
- Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
| | - John Virdin
- Nicholas School of the Environment, Duke University, Durham, USA
| | | | | | - Emmanuel Kaunda
- Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
| | | | - David J. Mills
- WorldFish, Penang, Malaysia
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Australia
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16
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More Than Fish—Framing Aquatic Animals within Sustainable Food Systems. Foods 2022; 11:foods11101413. [PMID: 35626983 PMCID: PMC9141230 DOI: 10.3390/foods11101413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 01/27/2023] Open
Abstract
Aquatic animals are diverse in terms of species, but also in terms of production systems, the people involved, and the benefits achieved. In this concept piece, we draw on literature to outline how the diversity of aquatic animals, their production, and their consumption all influence their impact within the food system. Built on evidence from an array of reductionist and non-reductionist literature, we suggest that food systems researchers and policymakers adapt current methods and theoretical frameworks to appropriately contextualise aquatic animals in broader food systems. We do this through combining current understandings of food systems theory, value chain, livelihoods, nutritional outcomes, and planetary boundaries thinking. We make several claims around understanding the role of aquatic animals in terms of nutritional output and environmental impacts. We suggest a need to consider: (1) the diversity of species and production methods; (2) variable definitions of an “edible yield”; (3) circular economy principles and the impacts of co-products, and effects beyond nutrient provision; (4) role of aquatic animals in the overall diet; (5) contextual effects of preservation, preparation, cooking, and consumer choices; (6) globalised nature of aquatic animal trade across the value chain; and (7) that aquatic animals are produced from a continuum, rather than a dichotomy, of aquaculture or fisheries. We conclude by proposing a new framework that involves cohesive interdisciplinary discussions around aquatic animal foods and their role in the broader food system.
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17
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Kaminski AM, Little DC, Middleton L, Syapwaya M, Lundeba M, Johnson J, Huchzermeyer C, Thilsted SH. The Role of Aquaculture and Capture Fisheries in Meeting Food and Nutrition Security: Testing a Nutrition-Sensitive Pond Polyculture Intervention in Rural Zambia. Foods 2022; 11:1334. [PMID: 35564057 PMCID: PMC9102775 DOI: 10.3390/foods11091334] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/13/2022] [Accepted: 04/28/2022] [Indexed: 02/05/2023] Open
Abstract
This study tested the efficacy of a pond polyculture intervention with farming households in northern Zambia. Longitudinal data on fish consumption and the associated nutrient intake of households (N = 57) were collected over a six-month period (September 2019-March 2020). One group of people tested the intervention while another group that practiced monoculture tilapia farming, and a third group that did not practice aquaculture, acted as control groups. A similar quantity of fish was consumed on average; however, the associated nutrient intake differed, based on the quantity and type of species consumed, particularly for those who had access to pelagic small fish from capture fisheries. There was a decrease in fish consumption from December onward due to fisheries management restrictions. The ponds provided access to micronutrient-rich fish during this time. Pond polyculture can act as a complementary source of fish to capture fisheries that are subjected to seasonal controls, as well as to households that farm tilapia. Assessments of how aquatic foods can improve food and nutrition security often separate aquaculture and capture fisheries, failing to account for people who consume fish from diverse sources simultaneously. A nutrition-sensitive approach thus places food and nutrition security, and consumers, at the center of the analysis.
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Affiliation(s)
| | - David C. Little
- Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, UK;
| | - Lucinda Middleton
- WorldFish One CGIAR, Plot 18944 Lubansenshi, Lusaka 10101, Zambia; (L.M.); (M.S.); (M.L.)
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Ellengowan Drive, Casuarina, NT 0810, Australia
| | - Muleya Syapwaya
- WorldFish One CGIAR, Plot 18944 Lubansenshi, Lusaka 10101, Zambia; (L.M.); (M.S.); (M.L.)
| | - Mary Lundeba
- WorldFish One CGIAR, Plot 18944 Lubansenshi, Lusaka 10101, Zambia; (L.M.); (M.S.); (M.L.)
| | - Jacob Johnson
- Department of Ecosystem Science and Management, Penn State University, State College, PA 16801, USA;
| | - Carl Huchzermeyer
- Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ), Kariba Road, Lusaka 10101, Zambia;
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18
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Murray FJ, Little DC. Rural Consumer Preferences for Inland Fish and Their Substitutes in the Dry-Zone of Sri Lanka and Implications for Aquaculture Development. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2022. [DOI: 10.3389/fsufs.2022.867701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Poor understanding of market demand is a key factor in the recurrent failure of many production-orientated aquaculture interventions. In the Dry-Zone of Sri Lanka stocking-based fisheries enhancements in small-scale reservoirs have been promoted by the State since the 1980's with no evidence of sustainable adoption. Through an evaluation of positive (actual) and normative (aspirational) consumer preferences for inland fish and its substitutes, we aimed to assess underlying reasons for this recurrent failure and future prospects for the policy and rural food-security. Work commenced with a detailed scoping-analysis to establish socio-economic context and a sample frame for systematic surveys. Consumption recall and preference ranking/scoring techniques were applied in two iterative survey phases across 6 villages of Northwest Province. Totals of 39 and 165 respondents were surveyed across the two phases with selection stratified on age, gender, caste and wealth criteria. Results underscored the importance of inland fish to rural food security. Fresh inland fish was consumed by 60% of all respondents at least once per fortnight and by 82% at least once per month with tilapias accounting for 75–85% of meals. Preference for inland fish compared over similarly priced substitutes is attributable to their freshness at point of sale above any other intrinsic product quality. Larger inland and marine fish were more popular than smaller sizes of the same varieties though poorer households consumed lower cost small fresh tilapia (<180 g) and dried marine fish at higher frequency. Common carp an exotic candidate for culture-based reservoir stocking enhancements, held an intermediate position. National policies on inland aquaculture development and rural food security are discussed and recommendations made in the light of these findings.
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19
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Vollmer D, Burkhard K, Adem Esmail B, Guerrero P, Nagabhatla N. Incorporating Ecosystem Services into Water Resources Management-Tools, Policies, Promising Pathways. ENVIRONMENTAL MANAGEMENT 2022; 69:627-635. [PMID: 35381851 PMCID: PMC9012863 DOI: 10.1007/s00267-022-01640-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
Ecosystems provide a range of services, including water purification, erosion prevention, and flood risk mitigation, that are important to water resource managers. But as a sector, water resources management has been slow to incorporate ecosystem protection and restoration, for a variety of reasons, although related concepts such as nature-based solutions and green infrastructure are gaining traction. We explain some of the existing challenges to wider uptake of the ecosystem services concept in water resources management and introduce some promising avenues for research and practice, elaborated in more detail through 12 papers, spanning five continents and a variety of contexts, which make up a Special Issue on "Incorporating Ecosystem Services into Water Resources Management". Cross-cutting themes include (A) ecosystem services as a flexible concept to communicate with stakeholders; (B) participatory processes to involve stakeholders in research; (C) multiple values, and valuation methods, of water-related services; and (D) applications of decision-support tools. We conclude with a summary of research gaps and emphasize the importance of co-producing knowledge with decision makers and other stakeholders, in order to improve water resources management through the integration of ecosystem services.
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Affiliation(s)
- Derek Vollmer
- Moore Center for Science, Conservation International, Arlington, VA, USA
| | - Kremena Burkhard
- Institute for Environmental Planning, Leibniz University Hannover, Hannover, Germany
- Department of Landscape Ecology and Environmental Systems Analysis, Institute of Geoecology, Technische Universität Braunschweig, Braunschweig, Germany
| | - Blal Adem Esmail
- Institute of Geography, Ruhr University Bochum, Bochum, Germany.
| | | | - Nidhi Nagabhatla
- United Nations University Institute on Comparative Regional Integration Studies (UNU CRIS), Bruges, Belgium
- School of Earth, Environment and Society, McMaster University, Hamilton, ON, Canada
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20
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Simmance FA, Simmance AB, Kolding J, Schreckenberg K, Tompkins E, Poppy G, Nagoli J. A photovoice assessment for illuminating the role of inland fisheries to livelihoods and the local challenges experienced through the lens of fishers in a climate-driven lake of Malawi. AMBIO 2022; 51:700-715. [PMID: 34170476 PMCID: PMC8231085 DOI: 10.1007/s13280-021-01583-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 06/13/2023]
Abstract
Small-scale inland capture fisheries provide an important source of nutritious food, employment and income to millions of people in developing countries, particularly in rural environments where limited alternatives exist. However, the sector is one of most under-valued fisheries sectors and is increasingly experiencing environmental change. This study adopts a Sustainable Livelihoods Approach and investigates how important a fluctuating inland fishery is to livelihoods, and how local perceptions on challenges corresponds to global evidence. Through an innovative participatory method; photovoice, the lived experiences and perceptions of fishers are depicted. The findings illuminate the valuable role of the sector to food and nutrition security and the complex nexus with vulnerability to climate change. The study responds to the call for more local level assessments of the impacts of climate change on inland fisheries in data-limited environments, and the value of the sector in underpinning the Sustainable Development Goals.
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Affiliation(s)
- Fiona Armstrong Simmance
- WorldFish, Jalan Batu Maung, Batu Maung, 11960 Bayan Lepas, Pulau Pinang Malaysia
- University of Southampton, University Road, Southampton, SO17 1BJ UK
| | | | - Jeppe Kolding
- University of Bergen, Postboks 7803, 5020 Bergen, Norway
| | | | - Emma Tompkins
- Garden Court Office Park, Area 11, Office Block 3, P. O. Box 30294, Capital City, Lilongwe, Malawi
| | - Guy Poppy
- University of Southampton, University Road, Southampton, SO17 1BJ UK
| | - Joseph Nagoli
- Garden Court Office Park, Area 11, Office Block 3, P. O. Box 30294, Capital City, Lilongwe, Malawi
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21
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Adaptation Strategies to a Changing Resource Base: Case of the Gillnet Nile Perch Fishery on Lake Victoria in Uganda. SUSTAINABILITY 2022. [DOI: 10.3390/su14042376] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Sustainable management of fisheries has proven to be a daunting exercise for Lake Victoria. Exploitation patterns in the fishery are driven by fishers who adopt different strategies as a response to changing economic, management, socio-economic, and resource conditions. Fisheries managers, however, seldom consider these changes in management policies. The aim of the study, therefore, was to evaluate the adaptation strategies of the Nile perch gillnet fishers on Lake Victoria in Uganda using 8-year catch and effort data collected in the period from 2005 to 2015. Trends of the selected effort and catch variables in the study period identified two adaptive fishing strategies by gillnet fishers on the lake. The first group, the paddled fishermen whose gillnet use varied in the first half of the study, diverted to harvesting juvenile Nile perch by using smaller, mesh sizes, monofilament nets and gillnets of less depth in the second half of the study. Motorized fishers, on the other hand, maintained their mesh size, using multifilament gillnets, however, they increased the depth of their nets in the second half of the study period to maintain their targeted fish size. Fishers on Lake Victoria adapted strategies to cope with their constraints and opportunities based on the Nile perch population structure and their economic needs. It is important for fishery managers to consider that the fishers are an integral part of the fisheries ecosystems, and considering their behavior in management decisions will aid in devising adaptive policies for sustainable resource use and sustainable livelihood development of the fishers’ communities.
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22
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Silvano RAM, Pereyra PER, Begossi A, Hallwass G. Which fish is this? Fishers know more than 100 fish species in megadiverse tropical rivers. Facets (Ott) 2022. [DOI: 10.1139/facets-2021-0136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Ethnobiological studies on folk, common, or popular names that fishers use to identify fish can help improve fisheries monitoring and collaborations between fishers and researchers. This study investigates fishers’ knowledge (recognition, naming, and habitat use) on 115 and 119 fish species, respectively, in the Negro and Tapajos Rivers, two megadiverse rivers in the Brazilian Amazon, and investigates the relationship between such knowledge and fish importance to fisheries, fish abundance, and fish size. We also compared fishers’ perceptions on fisheries and fish abundance with literature data on fish harvests and fish sampling. We interviewed 16 fishers in 16 communities (one fisher per community, 8 communities along each river). These fishers recognized an average of 91 ± 10.4 species in the Negro River and 115 ± 7.2 species in the Tapajos River, but all fishers recognized 114 species in Negro and all species in Tapajos. The fishers’ knowledge of fish species was positively related to fishers’ perceptions on fish abundance, size, and importance to fisheries in the Negro, but only positively related to fish size in the Tapajos. Our results highlight the usefulness of fishers’ knowledge to providing data on use and cultural relevance of fish species in high diversity aquatic ecosystems.
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Affiliation(s)
- Renato A. M. Silvano
- Departamento de Ecologia e Programa de Pós-Graduação em Ecologia – IB, Universidade do Rio Grande do Sul (UFRGS), Rio Grande do Sul, Brazil
- Fisheries and Food Institute – FIFO , Rio de Janeiro, RJ, Brazil
| | - Paula E. R. Pereyra
- Departamento de Ecologia e Programa de Pós-Graduação em Ecologia – IB, Universidade do Rio Grande do Sul (UFRGS), Rio Grande do Sul, Brazil
| | - Alpina Begossi
- Fisheries and Food Institute – FIFO , Rio de Janeiro, RJ, Brazil
- Núcleo de Estudos e Pesquisas em Alimentação – NEPA, CAPESCA, UNICAMP, Campinas, SP, Brazil and PG Unisanta, Santos, SP, Brazil
| | - Gustavo Hallwass
- Fisheries and Food Institute – FIFO , Rio de Janeiro, RJ, Brazil
- Universidade Federal do Oeste do Pará (UFOPA), Pará, Brazil
- Current address: Instituto de Ciências, Tecnologia e Inovação, Universidade Federal de Lavras (UFLA), São Sebastião do Paraíso, Minas Gerais, Brazil
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Mamun AA, Murray FJ, Sprague M, McAdam BJ, Roos N, de Roos B, Pounds A, Little DC. Export-Driven, Extensive Coastal Aquaculture Can Benefit Nutritionally Vulnerable People. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2021. [DOI: 10.3389/fsufs.2021.713140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Export-orientated shrimp and prawn farming in coastal ghers has been associated with negative environmental, social, and nutritional impacts. This study challenges these perceptions based on field observations from four communities in South West Bangladesh. Most households observed (>60%) were either directly involved in seafood farming or engaged elsewhere in the seafood value chain. Our study set out to establish how the type and location of aquaculture impacted on access to and consumption of aquatic animals. Additionally, we assessed the effects of both household socioeconomic status and intra-household food allocation on individual diet and nutritional outcomes. We used a blended approach, including a 24-h consumption recall on two occasions, analysis of the proximate composition of aquatic animals and biomarkers from whole blood from a sample of the target population. The diverse polyculture systems generated broad social benefits, where “export-oriented” production actually supplied more food locally than to global markets. Key findings: (1) worse-off households achieved higher productivity of farmed aquatic animals on smaller landholding than better-off households with larger landholdings; (2) vegetable production on gher dikes was a significant source of nutrition and income in lower saline gradients; (3) more fish was eaten in lower saline gradients although fish consumption was highly variable within and between households; (4) intra-household allocation of specific foods within diets were similar across communities; (5) recommended nutrient intakes of protein and zinc exceeded daily requirements for adolescent females, but energy, calcium, and iron were below recommended intake levels; (6) n-3 LC-PUFA, expressed as percentage of total fatty acids, in whole blood samples of adolescent females declined with ambient salinity level regardless of household socioeconomic status; (7) analysis of aquatic animals consumed found that mangrove species and tilapia harvested from higher saline ghers contained high levels of desirable PUFAs. These findings suggest that export-driven, extensive coastal aquaculture can be nutrition sensitive when co-products are retained for local consumption.
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Lopes PFM, Hanazaki N, Nakamura EM, Salivonchyk S, Begossi A. What fisher diets reveal about fish stocks. AMBIO 2021; 50:1851-1865. [PMID: 33677808 PMCID: PMC8363708 DOI: 10.1007/s13280-021-01506-0] [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: 07/10/2020] [Revised: 11/27/2020] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
Tracking fish consumption could provide additional information on changes to fish stocks, one of the planet's main protein sources. We used data on seafood consumption in fishing villages in Brazil over time to test for changes in: species richness, diversity, and composition, fish size and trophic levels, consumption of endangered species, and functional diversity (namely, species with different behavioral and habitat preferences). Our results demonstrate the potential to include this additional data source to complement fisheries data, especially in data-poor countries. With respect to Brazil specifically, we identified a decrease in both the average trophic level and size of the species consumed. While the consumption of endangered species had always been low, most of these species changed over time, thereby suggesting that many, especially elasmobranchs, may have become rare on the plates. Although it may be hard to fully isolate cultural changes from biodiversity changes when it comes to analyzing consumption data, by examining diets it is possible to identify aspects worth investigating further, such as, whether the decrease in dietary trophic levels mirrors a decrease in environmental trophic levels. In places where fisheries data are either inexistent or limited, diet track surveys, such as household expenditure programs, can help trace the changes caused by fisheries in stocks and habitats.
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Affiliation(s)
- Priscila F. M. Lopes
- Departament of Ecology, Universidade Federal Do RioGrande do Norte, Natal, RN Brazil
| | - Natália Hanazaki
- Department of Ecology and Zoology, Biological Sciences Center, Universidade Federal de Santa Catarina - Campus Universitário, Sala 009 Bloco C - Córrego Grande, 88040-900 Florianópolis, SC Brazil
| | - Elaine M. Nakamura
- Department of Ecology and Zoology, Biological Sciences Center, Universidade Federal de Santa Catarina - Campus Universitário, Sala 010 Bloco C - Córrego Grande, CEP: 88040-900 Florianópolis, SC Brazil
| | - Svetlana Salivonchyk
- Institute for Nature Management, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Alpina Begossi
- CAPESCA, NEPA, UNICAMP SP, Rua Albert Einstein 291, Campinas, SP 13083-852 Brazil
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25
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Golden CD, Koehn JZ, Shepon A, Passarelli S, Free CM, Viana DF, Matthey H, Eurich JG, Gephart JA, Fluet-Chouinard E, Nyboer EA, Lynch AJ, Kjellevold M, Bromage S, Charlebois P, Barange M, Vannuccini S, Cao L, Kleisner KM, Rimm EB, Danaei G, DeSisto C, Kelahan H, Fiorella KJ, Little DC, Allison EH, Fanzo J, Thilsted SH. Aquatic foods to nourish nations. Nature 2021; 598:315-320. [PMID: 34526720 PMCID: PMC10584661 DOI: 10.1038/s41586-021-03917-1] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 08/16/2021] [Indexed: 12/29/2022]
Abstract
Despite contributing to healthy diets for billions of people, aquatic foods are often undervalued as a nutritional solution because their diversity is often reduced to the protein and energy value of a single food type ('seafood' or 'fish')1-4. Here we create a cohesive model that unites terrestrial foods with nearly 3,000 taxa of aquatic foods to understand the future impact of aquatic foods on human nutrition. We project two plausible futures to 2030: a baseline scenario with moderate growth in aquatic animal-source food (AASF) production, and a high-production scenario with a 15-million-tonne increased supply of AASFs over the business-as-usual scenario in 2030, driven largely by investment and innovation in aquaculture production. By comparing changes in AASF consumption between the scenarios, we elucidate geographic and demographic vulnerabilities and estimate health impacts from diet-related causes. Globally, we find that a high-production scenario will decrease AASF prices by 26% and increase their consumption, thereby reducing the consumption of red and processed meats that can lead to diet-related non-communicable diseases5,6 while also preventing approximately 166 million cases of inadequate micronutrient intake. This finding provides a broad evidentiary basis for policy makers and development stakeholders to capitalize on the potential of aquatic foods to reduce food and nutrition insecurity and tackle malnutrition in all its forms.
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Affiliation(s)
- Christopher D Golden
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
- Department of Global Health and Population, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| | - J Zachary Koehn
- Center for Ocean Solutions, Stanford University, Stanford, CA, USA
| | - Alon Shepon
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Department of Environmental Studies, The Porter School of the Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
- The Steinhardt Museum of Natural History, Tel Aviv University, Tel Aviv, Israel
| | - Simone Passarelli
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Christopher M Free
- Bren School of Environmental Science and Management, University of California, Santa Barbara, Santa Barbara, CA, USA
- Marine Sciences Institute, University of California, Santa Barbara, CA, USA
| | - Daniel F Viana
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Betty and Gordon Moore Center for Science, Conservation International, Arlington, VA, USA
| | - Holger Matthey
- Markets and Trade Division, Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Jacob G Eurich
- Marine Sciences Institute, University of California, Santa Barbara, CA, USA
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Jessica A Gephart
- Department of Environmental Science, American University, Washington, DC, USA
| | | | | | - Abigail J Lynch
- U.S. Geological Survey, National Climate Adaptation Science Center, Reston, VA, USA
| | | | - Sabri Bromage
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Pierre Charlebois
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Manuel Barange
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Stefania Vannuccini
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Ling Cao
- School of Oceanography, Shanghai Jiao Tong University, Shanghai, China
| | | | - Eric B Rimm
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Goodarz Danaei
- Department of Global Health and Population, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Camille DeSisto
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Heather Kelahan
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Kathryn J Fiorella
- Department of Population Medicine and Diagnostic Sciences and Master of Public Health Program, Cornell University, Ithaca, NY, USA
| | - David C Little
- Institute of Aquaculture, University of Stirling, Stirling, UK
| | | | - Jessica Fanzo
- Bloomberg School of Public Health and Nitze School of Advanced International Studies, Johns Hopkins University, Washington, DC, USA
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26
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Moreau MA, Garaway CJ. Trading Fast and Slow: Fish Marketing Networks Provide Flexible Livelihood Opportunities on an East African Floodplain. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2021. [DOI: 10.3389/fsufs.2021.742803] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Domestic marketing networks in inland small-scale fisheries (SSF) provide food and income to millions of the rural poor globally. Yet these contributions remain undervalued, as most trade is informal and unmonitored, and inland fisheries overlooked in research and policy. Taking a commodity chain approach, we provide a case study of access arrangements governing how people come to enter and benefit from the freshwater fish trade on Tanzania's Rufiji River floodplain. We conducted a repeat market survey, interviews, and participant observation with actors at all levels of the district trade over 15 months. Gender, age, and social capital structured participation patterns, with younger men dominating the more lucrative but riskier fresh trade, older men prioritizing steady income from smoked fish, and women culturally constrained to selling a “cooked” product (i.e., fried fish). Nearly all participants were local, with traders drawing on a complex web of relationships to secure supplies. The majority of market vendors cited the trade as their household's most important income source, with women's earnings and consumption of unsold fish likely to have substantial benefits for children's well-being. Our findings reveal a resilient and pro-poor trade system where, starting with small initial investments, people overcame considerable environmental, financial, regulatory, and infrastructural challenges to reliably deliver fish to rural and urban consumers. Preserving the ecological integrity of Rufiji wetlands in the face of hydro-power development and climate change should be a priority to safeguard the livelihoods and well-being of local inhabitants.
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27
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Tigchelaar M, Cheung WWL, Mohammed EY, Phillips MJ, Payne HJ, Selig ER, Wabnitz CCC, Oyinlola MA, Frölicher TL, Gephart JA, Golden CD, Allison EH, Bennett A, Cao L, Fanzo J, Halpern BS, Lam VWY, Micheli F, Naylor RL, Sumaila UR, Tagliabue A, Troell M. Compound climate risks threaten aquatic food system benefits. NATURE FOOD 2021; 2:673-682. [PMID: 37117477 DOI: 10.1038/s43016-021-00368-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 08/17/2021] [Indexed: 04/30/2023]
Abstract
Aquatic foods from marine and freshwater systems are critical to the nutrition, health, livelihoods, economies and cultures of billions of people worldwide, but climate-related hazards may compromise their ability to provide these benefits. Here, we estimate national-level aquatic food system climate risk using an integrative food systems approach that connects climate hazards impacting marine and freshwater capture fisheries and aquaculture to their contributions to sustainable food system outcomes. We show that without mitigation, climate hazards pose high risks to nutritional, social, economic and environmental outcomes worldwide-especially for wild-capture fisheries in Africa, South and Southeast Asia, and Small Island Developing States. For countries projected to experience compound climate risks, reducing societal vulnerabilities can lower climate risk by margins similar to meeting Paris Agreement mitigation targets. System-level interventions addressing dimensions such as governance, gender equity and poverty are needed to enhance aquatic and terrestrial food system resilience and provide investments with large co-benefits towards meeting the Sustainable Development Goals.
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Affiliation(s)
| | - William W L Cheung
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | - Hanna J Payne
- Center for Ocean Solutions, Stanford University, Stanford, CA, USA
| | | | - Colette C C Wabnitz
- Center for Ocean Solutions, Stanford University, Stanford, CA, USA
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, British Columbia, Canada
| | - Muhammed A Oyinlola
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, British Columbia, Canada
| | - Thomas L Frölicher
- Climate and Environmental Physics, University of Bern, Bern, Switzerland
- Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
| | - Jessica A Gephart
- Department of Environmental Science, American University, Washington DC, USA
| | - Christopher D Golden
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | | | - Abigail Bennett
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, USA
| | - Ling Cao
- School of Oceanography, Shanghai Jiao Tong University, Shanghai, China
| | - Jessica Fanzo
- Berman Institute of Bioethics, Johns Hopkins University, Baltimore, MD, USA
- Nitze School of Advanced International Studies, Johns Hopkins University, Washington DC, USA
| | - Benjamin S Halpern
- National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, CA, USA
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, USA
| | - Vicky W Y Lam
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, British Columbia, Canada
| | - Fiorenza Micheli
- Center for Ocean Solutions, Stanford University, Stanford, CA, USA
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
| | - Rosamond L Naylor
- Department of Earth System Science, Stanford University, Stanford, CA, USA
| | - U Rashid Sumaila
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, British Columbia, Canada
- School of Public Policy and Global Affairs, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Max Troell
- Beijer Institute of Ecological Economics, The Royal Swedish Academy of Sciences, Stockholm, Sweden
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
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28
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de Vasconcellos ACS, Hallwass G, Bezerra JG, Aciole ANS, Meneses HNDM, Lima MDO, de Jesus IM, Hacon SDS, Basta PC. Health Risk Assessment of Mercury Exposure from Fish Consumption in Munduruku Indigenous Communities in the Brazilian Amazon. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:7940. [PMID: 34360233 PMCID: PMC8345402 DOI: 10.3390/ijerph18157940] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 01/08/2023]
Abstract
Fish serves as the principal source of animal protein for the indigenous people of the Amazon, ensuring their food and nutritional security. However, gold mining causes mercury (Hg) contamination in fish, and consequently increases health risks associated with fish consumption. The aim of this study was to assess the health risk attributed to the consumption of mercury-contaminated fish by Munduruku indigenous communities in the Middle-Tapajós Region. Different fish species were collected in the Sawré Muybu Indigenous Land to determine mercury levels. The health risk assessment was carried out according to the World Health Organization (WHO 2008) methodology and different scenarios were built for counterfactual analysis. Eighty-eight fish specimens from 17 species and four trophic levels were analyzed. Estimates of Hg ingestion indicated that the methylmercury daily intake exceeds the U.S. EPA (United States Environmental Protection Agency) (2000) reference dose from 3 to 25-fold, and up to 11 times the FAO (Food and Agriculture Organization)/WHO (2003) dose recommendation. In all situations analyzed, the risk ratio estimates were above 1.0, meaning that the investigated Munduruku communities are at serious risk of harm as a result of ingestion of mercury-contaminated fish. These results indicate that, at present, fish consumption is not safe for this Munduruku population. This hazardous situation threatens the survival of this indigenous population, their food security, and their culture.
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Affiliation(s)
- Ana Claudia Santiago de Vasconcellos
- Laboratory of Professional Education in Health Surveillance, Joaquim Venâncio Polytechnic School of Health, Oswaldo Cruz Foundation, 21040-900 Rio de Janeiro, Brazil
| | - Gustavo Hallwass
- Laboratory of Human Ecology, Fish, Fisheries and Conservation, Postgraduate Program in Biosciences, Federal University of West Para, 68270-000 Oriximiná, Brazil; (G.H.); (J.G.B.); (A.N.S.A.)
| | - Jaqueline Gato Bezerra
- Laboratory of Human Ecology, Fish, Fisheries and Conservation, Postgraduate Program in Biosciences, Federal University of West Para, 68270-000 Oriximiná, Brazil; (G.H.); (J.G.B.); (A.N.S.A.)
| | - Angélico Nonato Serrão Aciole
- Laboratory of Human Ecology, Fish, Fisheries and Conservation, Postgraduate Program in Biosciences, Federal University of West Para, 68270-000 Oriximiná, Brazil; (G.H.); (J.G.B.); (A.N.S.A.)
| | | | - Marcelo de Oliveira Lima
- Environment Section, Evandro Chagas Institute, Health Surveillance Secretariat, Ministry of Health, 67030-000 Ananindeua, Brazil; (M.O.L.); (I.M.J.)
| | - Iracina Maura de Jesus
- Environment Section, Evandro Chagas Institute, Health Surveillance Secretariat, Ministry of Health, 67030-000 Ananindeua, Brazil; (M.O.L.); (I.M.J.)
| | - Sandra de Souza Hacon
- Samuel Pessoa Department of Endemics, National School of Public Health, Oswaldo Cruz Foundation, 21041-210 Rio de Janeiro, Brazil;
| | - Paulo Cesar Basta
- Samuel Pessoa Department of Endemics, National School of Public Health, Oswaldo Cruz Foundation, 21041-210 Rio de Janeiro, Brazil;
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29
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Changing Land Use and Population Density Are Degrading Water Quality in the Lower Mekong Basin. WATER 2021. [DOI: 10.3390/w13141948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Establishing reference conditions in rivers is important to understand environmental change and protect ecosystem integrity. Ranked third globally for fish biodiversity, the Mekong River has the world’s largest inland fishery providing livelihoods, food security, and protein to the local population. It is therefore of paramount importance to maintain the water quality and biotic integrity of this ecosystem. We analyzed land use impacts on water quality constituents (TSS, TN, TP, DO, NO3−, NH4+, PO43−) in the Lower Mekong Basin. We then used a best-model regression approach with anthropogenic land-use as independent variables and water quality parameters as the dependent variables, to define reference conditions in the absence of human activities (corresponding to the intercept value). From 2000–2017, the population and the percentage of crop, rice, and plantation land cover increased, while there was a decrease in upland forest and flooded forest. Agriculture, urbanization, and population density were associated with decreasing water quality health in the Lower Mekong Basin. In several sites, Thailand and Laos had higher TN, NO3−, and NH4+ concentrations compared to reference conditions, while Cambodia had higher TP values than reference conditions, showing water quality degradation. TSS was higher than reference conditions in the dry season in Cambodia, but was lower than reference values in the wet season in Thailand and Laos. This study shows how deforestation from agriculture conversion and increasing urbanization pressure causes water quality decline in the Lower Mekong Basin, and provides a first characterization of reference water quality conditions for the Lower Mekong River and its tributaries.
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30
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Micronutrient supply from global marine fisheries under climate change and overfishing. Curr Biol 2021; 31:4132-4138.e3. [PMID: 34289388 DOI: 10.1016/j.cub.2021.06.067] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 11/23/2022]
Abstract
Fish are rich in bioavailable micronutrients, such as zinc and iron, deficiencies of which are a global food security concern.1,2 Global marine fisheries yields are threatened by climate change and overfishing,3,4 yet understanding of how these stressors affect the nutrients available from fisheries is lacking.5,6 Here, using global assessments of micronutrient content2 and fisheries catch data,7 we investigate how the vulnerability status of marine fish species8,9 may translate into vulnerability of micronutrient availability at scales of both individual species and entire fishery assemblages for 157 countries. We further quantify the micronutrient evenness of catches to identify countries where interventions can optimize micronutrient supply. Our global analysis, including >800 marine fish species, reveals that, at a species level, micronutrient availability and vulnerability to both climate change and overfishing varies greatly, with tropical species displaying a positive co-tolerance, indicating greater persistence to both stressors at a community level.10 Global fisheries catches had relatively low nutritional vulnerability to fishing. Catches with higher species richness tend to be nutrient dense and evenly distributed but are more vulnerable to climate change, with 40% of countries displaying high vulnerability. Countries with high prevalence of inadequate micronutrient intake tend to have the most nutrient-dense catches, but these same fisheries are highly vulnerable to climate change, with relatively lower capacity to adapt.11 Our analysis highlights the need to consolidate fisheries, climate, and food policies to secure the sustainable contribution of fish-derived micronutrients to food and nutrition security.
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31
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Linløkken AN. Effects of Lake Productivity on Density and Size Structure of Pelagic Fish Estimated by Means of Echosounding in 17 Lakes in Southeast Norway. SENSORS 2021; 21:s21103391. [PMID: 34068049 PMCID: PMC8152495 DOI: 10.3390/s21103391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/02/2021] [Accepted: 05/05/2021] [Indexed: 12/02/2022]
Abstract
Density estimation of pelagic fish was performed by means of single beam echosounding in 17 lakes within a period of 34 years, from 1985 to 2018. Surveys were performed repeatedly (two to fourteen times) in five lakes. The density estimates ranged from 34 to 4720 fish/ha and were significantly correlated with total phosphorus concentration. The high density in relatively phosphorus rich lakes (TP > 10 µg/L) was comprised of small fish (<20 cm) and was partly due to the higher number of pelagic fish species. The number of pelagic species varied from one, Arctic charr, in the most elevated and oligotrophic lakes, and whitefish dominated in less elevated oligotrophic lakes. In lowland lakes characterized as mesotrophic or tending to mesotrophy, smelt, vendace, and two to three cyprinids comprised the pelagic fish stock. These fish species predate zooplankton effectively, and species composition and body size of planktonic cladocerans was affected by fish density. Large species of Daphnia were lacking in lakes with high fish density, and body size of present species, D. galeata, D. cristata, and Bosmina spp. were negatively correlated with pelagic fish density.
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Affiliation(s)
- Arne N Linløkken
- Faculty of Applied Ecology, Agricultural Sciences and Biotechnology, Inland Norway University of Applied Sciences, N-2418 Elverum, Norway
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32
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Euclide PT, Lor Y, Spear MJ, Tajjioui T, Vander Zanden J, Larson WA, Amberg JJ. Environmental DNA metabarcoding as a tool for biodiversity assessment and monitoring: reconstructing established fish communities of north‐temperate lakes and rivers. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13253] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Peter T. Euclide
- Wisconsin Cooperative Fishery Research Unit College of Natural Resources University of Wisconsin‐Stevens Point Stevens Point WI USA
| | - Yer Lor
- U.S. Geological Survey Upper Midwest Environmental Sciences Center WI USA
| | - Michael J. Spear
- Center for Limnology University of Wisconsin‐Madison Madison WI USA
| | - Tariq Tajjioui
- U.S. Geological Survey Upper Midwest Environmental Sciences Center WI USA
| | | | - Wesley A. Larson
- Wisconsin Cooperative Fishery Research Unit College of Natural Resources University of Wisconsin‐Stevens Point Stevens Point WI USA
- U.S. Geological Survey Wisconsin Cooperative Fishery Research Unit College of Natural Resources University of Wisconsin‐Stevens Point Stevens Point WI USA
| | - Jon J. Amberg
- U.S. Geological Survey Upper Midwest Environmental Sciences Center WI USA
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33
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Heilpern SA, DeFries R, Fiorella K, Flecker A, Sethi SA, Uriarte M, Naeem S. Declining diversity of wild-caught species puts dietary nutrient supplies at risk. SCIENCE ADVANCES 2021; 7:eabf9967. [PMID: 34049874 PMCID: PMC8163071 DOI: 10.1126/sciadv.abf9967] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/14/2021] [Indexed: 05/28/2023]
Abstract
Although biodiversity loss adversely influences a variety of ecosystem functions, how declining wild food diversity affects nutrient supplies for people is poorly understood. Here, we analyze the impact of declining biodiversity on nutrients supplied by fish using detailed information from the Peruvian Amazon, where inland fisheries provide a critical source of nutrition for many of the region's 800,000 people. We found that the impacts of biodiversity loss on nutrient supplies depended on compensation, trophic dynamics, and functional diversity. When small sedentary species compensated for declines in large migratory species, fatty acid supplies increased, while zinc and iron supplies decreased. In contrast, the probability of failing to maintain supplies or nutrient supply risk increased when species were nutritionally unique. Our results show that trait-based regulations and public health polices need to consider biodiversity's vital role in sustaining nutritional benefits for over 2 billion people dependent on wild foods across the globe.
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Affiliation(s)
- Sebastian A Heilpern
- Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY, USA.
- Department of Natural Resources and the Environment, Cornell University, Ithaca, NY, USA
| | - Ruth DeFries
- Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY, USA
| | - Kathryn Fiorella
- Deparment of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, NY, USA
| | - Alexander Flecker
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA
| | - Suresh A Sethi
- USGS New York Cooperative Fish and Wildlife Unit, Department of Natural Resources, Cornell University, Ithaca, NY, USA
| | - María Uriarte
- Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY, USA
| | - Shahid Naeem
- Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY, USA
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34
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Euclide PT, MacDougall T, Robinson JM, Faust MD, Wilson CC, Chen K, Marschall EA, Larson W, Ludsin S. Mixed-stock analysis using Rapture genotyping to evaluate stock-specific exploitation of a walleye population despite weak genetic structure. Evol Appl 2021; 14:1403-1420. [PMID: 34025775 PMCID: PMC8127713 DOI: 10.1111/eva.13209] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 12/31/2022] Open
Abstract
Mixed-stock analyses using genetic markers have informed fisheries management in cases where strong genetic differentiation occurs among local spawning populations, yet many fisheries are supported by multiple, weakly differentiated stocks. Freshwater fisheries exemplify this problem, with many populations supported by multiple stocks of young evolutionary age and isolated across small spatial scales. Consequently, attempts to conduct genetic mixed-stock analyses of inland fisheries have often been unsuccessful. Advances in genomic sequencing offer the ability to discriminate among populations with weak population structure, providing the necessary resolution to conduct mixed-stock assignment among previously indistinguishable stocks. We used genomic data to conduct a mixed-stock analysis of eastern Lake Erie's commercial and recreational walleye (Sander vitreus) fisheries and estimate the relative harvest of weakly differentiated stocks (pairwise F ST < 0.01). Using RAD-capture (Rapture), we sequenced and genotyped individuals from western and eastern basin local spawning stocks at 12,081 loci with 95% reassignment accuracy, which was not possible in the past using microsatellite markers. A baseline assessment of 395 walleye from 11 spawning stocks identified three reporting groups and refined previous assessments of gene flow among walleye stocks. Genetic assignment of 1,075 walleye harvested in eastern Lake Erie's recreational and commercial fisheries indicated that western basin stocks constituted the majority of harvest during the peak walleye fishing season (July-September), whereas eastern basin individuals comprised much of the early season harvest (May-June). Clear spatial structure in harvest composition existed; catches in more easterly sites contained more individuals of eastern basin origin than did more westerly sites. Our study provides important stock contribution estimates for Lake Erie fishery management and demonstrates the utility of genomic data to facilitate mixed-stock analysis in exploited fish populations having weak population structure or limited existing genetic resources.
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Affiliation(s)
- Peter T. Euclide
- Wisconsin Cooperative Fishery Research Unit, College of Natural ResourcesUniversity of Wisconsin‐Stevens PointStevens PointWIUSA
| | - Tom MacDougall
- Lake Erie Management UnitOntario Ministry of Natural Resources and ForestryPort DoverONCanada
| | - Jason M. Robinson
- Lake Erie Fisheries Research UnitNew York State Department of Environmental ConservationDunkirkNYUSA
| | - Matthew D. Faust
- Division of Wildlife, Sandusky Fisheries Research StationOhio Department of Natural ResourcesSanduskyOHUSA
| | - Chris C. Wilson
- Aquatic Research and Monitoring SectionOntario Ministry of Natural Resources and ForestryPeterboroughONCanada
| | - Kuan‐Yu Chen
- Aquatic Ecology Laboratory, Department of Evolution, Ecology, and Organismal BiologyThe Ohio State UniversityColumbusOHUSA
| | - Elizabeth A. Marschall
- Aquatic Ecology Laboratory, Department of Evolution, Ecology, and Organismal BiologyThe Ohio State UniversityColumbusOHUSA
| | - Wesley Larson
- U.S. Geological Survey, Wisconsin Cooperative Fishery Research Unit, College of Natural ResourcesUniversity of Wisconsin‐Stevens PointStevens PointWIUSA
- Present address:
National Oceanic and Atmospheric AdministrationTed Stevens Marine Research InstituteJuneauAKUSA
| | - Stuart Ludsin
- Aquatic Ecology Laboratory, Department of Evolution, Ecology, and Organismal BiologyThe Ohio State UniversityColumbusOHUSA
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Fiorella KJ, Bageant ER, Schwartz NB, Thilsted SH, Barrett CB. Fishers' response to temperature change reveals the importance of integrating human behavior in climate change analysis. SCIENCE ADVANCES 2021; 7:7/18/eabc7425. [PMID: 33931440 PMCID: PMC8087411 DOI: 10.1126/sciadv.abc7425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
Climate change will reshape ecological dynamics. Yet, how temperature increases alter the behavior and resource use of people reliant on natural resources remains underexplored. Consequent behavior shifts have the potential to mitigate or accelerate climate impacts on livelihoods and food security. Particularly within the small-scale inland fisheries that support approximately 10% of the global population, temperature changes likely affect both fish and fishers. To analyze how changing temperatures alter households' fishing behavior, we examined fishing effort and fish catch in a major inland fishery. We used longitudinal observational data from households in Cambodia, which has the highest per-capita consumption of inland fish in the world. Higher temperatures caused households to reduce their participation in fishing but had limited net effects on fish catch. Incorporating human behavioral responses to changing environmental conditions will be fundamental to determining how climate change affects rural livelihoods, food production, and food access.
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Affiliation(s)
- Kathryn J Fiorella
- Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, NY 14853, USA.
| | - Elizabeth R Bageant
- Charles H. Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY 14853, USA
| | - Naomi B Schwartz
- Department of Geography, University of British Columbia, Vancouver, BC V6T 1Z2, Canada
| | | | - Christopher B Barrett
- Charles H. Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY 14853, USA
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A 20-year retrospective review of global aquaculture. Nature 2021; 591:551-563. [PMID: 33762770 DOI: 10.1038/s41586-021-03308-6] [Citation(s) in RCA: 394] [Impact Index Per Article: 131.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 01/29/2021] [Indexed: 02/01/2023]
Abstract
The sustainability of aquaculture has been debated intensely since 2000, when a review on the net contribution of aquaculture to world fish supplies was published in Nature. This paper reviews the developments in global aquaculture from 1997 to 2017, incorporating all industry sub-sectors and highlighting the integration of aquaculture in the global food system. Inland aquaculture-especially in Asia-has contributed the most to global production volumes and food security. Major gains have also occurred in aquaculture feed efficiency and fish nutrition, lowering the fish-in-fish-out ratio for all fed species, although the dependence on marine ingredients persists and reliance on terrestrial ingredients has increased. The culture of both molluscs and seaweed is increasingly recognized for its ecosystem services; however, the quantification, valuation, and market development of these services remain rare. The potential for molluscs and seaweed to support global nutritional security is underexploited. Management of pathogens, parasites, and pests remains a sustainability challenge industry-wide, and the effects of climate change on aquaculture remain uncertain and difficult to validate. Pressure on the aquaculture industry to embrace comprehensive sustainability measures during this 20-year period have improved the governance, technology, siting, and management in many cases.
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Inland fisheries critical for the diet quality of young children in sub-Saharan Africa. GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT 2021. [DOI: 10.1016/j.gfs.2020.100483] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Larsen DA, Makaure J, Ryan SJ, Stewart D, Traub A, Welsh R, Love DH, Bisesi JH. Implications of Insecticide-Treated Mosquito Net Fishing in Lower Income Countries. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:15001. [PMID: 33417508 PMCID: PMC7793550 DOI: 10.1289/ehp7001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 12/07/2020] [Accepted: 12/15/2020] [Indexed: 06/02/2023]
Abstract
INTRODUCTION Insecticide-treated mosquito nets (ITNs) are highly effective for the control of malaria. Yet widely distributed ITNs have been repurposed as fishing nets throughout the world. OBJECTIVES Herein we present a synthesis of the current knowledge of ITN fishing and the toxicity of pyrethroids and discuss the potential implications of widespread fishing with ITNs. We further review effective management strategies in tropical fisheries to explore a framework for managing potential ITN fishing impacts. DISCUSSION Pyrethroids are toxic to fish and aquatic environments, and fishing with ITNs may endanger the health of fisheries. Furthermore, although human toxicity to the pyrethroid insecticides that impregnate ITNs is traditionally thought to be low, recent scientific advances have shown that pyrethroid exposure is associated with a host of human health issues, including neurocognitive developmental disorders, diabetes, and cardiovascular disease. Although it is known that ITN fishing is widespread, the implications for both fisheries and human communities is understudied and may be severe. https://doi.org/10.1289/EHP7001.
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Affiliation(s)
- David A. Larsen
- Department of Public Health, Syracuse University, Syracuse, New York, USA
| | - Joseph Makaure
- Department of Environmental and Forest Biology, State University of New York College of Environmental Sciences and Forestry, Syracuse, New York, USA
| | - Sadie J. Ryan
- Department of Geography, University of Florida, Gainesville, Florida, USA
| | - Donald Stewart
- Department of Environmental and Forest Biology, State University of New York College of Environmental Sciences and Forestry, Syracuse, New York, USA
| | - Adrianne Traub
- Department of Nutrition and Food Studies, Syracuse University, Syracuse, New York, USA
| | - Rick Welsh
- Department of Nutrition and Food Studies, Syracuse University, Syracuse, New York, USA
| | - Deirdre H. Love
- Department of Environmental and Global Health and Center for Environmental and Human Toxicology, University of Florida, Gainesville, Florida, USA
| | - Joseph H. Bisesi
- Department of Environmental and Global Health and Center for Environmental and Human Toxicology, University of Florida, Gainesville, Florida, USA
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Albert JS, Destouni G, Duke-Sylvester SM, Magurran AE, Oberdorff T, Reis RE, Winemiller KO, Ripple WJ. Scientists' warning to humanity on the freshwater biodiversity crisis. AMBIO 2021; 50:85-94. [PMID: 32040746 PMCID: PMC7708569 DOI: 10.1007/s13280-020-01318-8] [Citation(s) in RCA: 153] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 12/09/2019] [Accepted: 01/07/2020] [Indexed: 05/20/2023]
Abstract
Freshwater ecosystems provide irreplaceable services for both nature and society. The quality and quantity of freshwater affect biogeochemical processes and ecological dynamics that determine biodiversity, ecosystem productivity, and human health and welfare at local, regional and global scales. Freshwater ecosystems and their associated riparian habitats are amongst the most biologically diverse on Earth, and have inestimable economic, health, cultural, scientific and educational values. Yet human impacts to lakes, rivers, streams, wetlands and groundwater are dramatically reducing biodiversity and robbing critical natural resources and services from current and future generations. Freshwater biodiversity is declining rapidly on every continent and in every major river basin on Earth, and this degradation is occurring more rapidly than in terrestrial ecosystems. Currently, about one third of all global freshwater discharges pass through human agricultural, industrial or urban infrastructure. About one fifth of the Earth's arable land is now already equipped for irrigation, including all the most productive lands, and this proportion is projected to surpass one third by midcentury to feed the rapidly expanding populations of humans and commensal species, especially poultry and ruminant livestock. Less than one fifth of the world's preindustrial freshwater wetlands remain, and this proportion is projected to decline to under one tenth by midcentury, with imminent threats from water transfer megaprojects in Brazil and India, and coastal wetland drainage megaprojects in China. The Living Planet Index for freshwater vertebrate populations has declined to just one third that of 1970, and is projected to sink below one fifth by midcentury. A linear model of global economic expansion yields the chilling prediction that human utilization of critical freshwater resources will approach one half of the Earth's total capacity by midcentury. Although the magnitude and growth of the human freshwater footprint are greater than is generally understood by policy makers, the news media, or the general public, slowing and reversing dramatic losses of freshwater species and ecosystems is still possible. We recommend a set of urgent policy actions that promote clean water, conserve watershed services, and restore freshwater ecosystems and their vital services. Effective management of freshwater resources and ecosystems must be ranked amongst humanity's highest priorities.
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Affiliation(s)
- James S. Albert
- Department of Biology, University of Louisiana at Lafayette, Lafayette, LA 70503 USA
| | - Georgia Destouni
- Department of Physical Geography, Bolin Centre for Climate Research, Stockholm University, 106 91 Stockholm, Sweden
| | | | - Anne E. Magurran
- Centre for Biological Diversity, University of St Andrews, St Andrews, KY16 UK
| | - Thierry Oberdorff
- UMR5174 EDB (Laboratoire Evolution et Diversité Biologique), CNRS, IRD, UPS, Université Paul Sabatier, 31062 Toulouse, France
| | - Roberto E. Reis
- Department of Biodiversity and Ecology, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS 90619-900 Brazil
| | - Kirk O. Winemiller
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX 77843 USA
| | - William J. Ripple
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97330 USA
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40
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Structural elucidation of N-glycans and bioactivity of sialoglycoprotein from crucian carp eggs structure and bioactivity of crucian egg SGP. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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41
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A network of grassroots reserves protects tropical river fish diversity. Nature 2020; 588:631-635. [PMID: 33239780 DOI: 10.1038/s41586-020-2944-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 10/05/2020] [Indexed: 11/08/2022]
Abstract
Intensive fisheries have reduced fish biodiversity and abundance in aquatic ecosystems worldwide1-3. 'No-take' marine reserves have become a cornerstone of marine ecosystem-based fisheries management4-6, and their benefits for adjacent fisheries are maximized when reserve design fosters synergies among nearby reserves7,8. The applicability of this marine reserve network paradigm to riverine biodiversity and inland fisheries remains largely untested. Here we show that reserves created by 23 separate communities in Thailand's Salween basin have markedly increased fish richness, density, and biomass relative to adjacent areas. Moreover, key correlates of the success of protected areas in marine ecosystems-particularly reserve size and enforcement-predict differences in ecological benefits among riverine reserves. Occupying a central position in the network confers additional gains, underscoring the importance of connectivity within dendritic river systems. The emergence of network-based benefits is remarkable given that these reserves are young (less than 25 years old) and arose without formal coordination. Freshwater ecosystems are under-represented among the world's protected areas9, and our findings suggest that networks of small, community-based reserves offer a generalizable model for protecting biodiversity and augmenting fisheries as the world's rivers face unprecedented pressures10,11.
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Freed S, Barman B, Dubois M, Flor RJ, Funge-Smith S, Gregory R, Hadi BAR, Halwart M, Haque M, Jagadish SVK, Joffre OM, Karim M, Kura Y, McCartney M, Mondal M, Nguyen VK, Sinclair F, Stuart AM, Tezzo X, Yadav S, Cohen PJ. Maintaining Diversity of Integrated Rice and Fish Production Confers Adaptability of Food Systems to Global Change. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2020. [DOI: 10.3389/fsufs.2020.576179] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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43
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Participatory Research with Fishers to Improve Knowledge on Small-Scale Fisheries in Tropical Rivers. SUSTAINABILITY 2020. [DOI: 10.3390/su12114487] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Freshwater small-scale fisheries sustain millions of livelihoods worldwide, but a lack of monitoring makes it difficult to check the sustainability of these fisheries. We aim to compare and describe participatory research methods used in studies with fishers in the Tapajos River, a poorly known tropical river in the Brazilian Amazon. We address three interview approaches, two ways to do fisheries monitoring and two approaches for georeferenced mapping based on fishers’ knowledge, which can provide data about at least 16 topics related to fisheries. We highlight major advantages and shortcomings of these methods and illustrate their potential with examples of results on fisheries and fish biology of Peacock bass (Cichla spp. tucunaré in Brazil), an important commercial fish in the Brazilian Amazon. The interviews, participatory monitoring and mapping revealed which fish are more valued by local communities, how fish abundance and sizes varied over time, when fish are more often caught and show reproductive activity, and which sites or habitats fish need to reproduce. In addition to providing useful data from many sites in a cost-effective way, participatory methods can bring the additional benefit of including local stakeholders in the monitoring, management, and research activities.
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44
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Butorac D, Santos P, Phouvin P, Guegan F. Freshwater fisheries conservation can increase biodiversity. PLoS One 2020; 15:e0233775. [PMID: 32459821 PMCID: PMC7252637 DOI: 10.1371/journal.pone.0233775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 05/12/2020] [Indexed: 11/18/2022] Open
Abstract
We evaluate the impact of a fisheries management program centered on the definition of Fish Conservation Zones on biodiversity, measured as the number of species caught in the last 12 months. Data comes from a set of 32 villages in central Lao PDR, of which half participated in the program, and the remaining are a set of matched control villages. The estimated causal effects are large (an increase between 29 and 32 species) and robust to the potential importance of unmeasured confounders. We also show that initial conditions may matter, as the program seems particularly effective in villages with high probability of participating in the program. These results are particularly important given the paucity of evidence regarding the impact of conservation programs on biodiversity, particularly in the context of freshwater ecosystems. Further directions of research suggested by these results are discussed.
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Affiliation(s)
- Declan Butorac
- Environmental Management, Monash University, Clayton, Vic, Australia
| | - Paulo Santos
- Dept Economics, Monash University, Caulfield, Vic, Australia
- * E-mail:
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45
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Tregidgo D, Barlow J, Pompeu PS, Parry L. Tough fishing and severe seasonal food insecurity in Amazonian flooded forests. PEOPLE AND NATURE 2020. [DOI: 10.1002/pan3.10086] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
- Daniel Tregidgo
- Departamento de Biologia Universidade Federal de Lavras (UFLA) Lavras Brazil
- Lancaster Environment Centre Lancaster University Lancaster UK
- Instituto de Desenvolvimento Sustentável Mamirauá (IDSM) Tefé Brazil
| | - Jos Barlow
- Departamento de Biologia Universidade Federal de Lavras (UFLA) Lavras Brazil
- Lancaster Environment Centre Lancaster University Lancaster UK
| | - Paulo S. Pompeu
- Departamento de Biologia Universidade Federal de Lavras (UFLA) Lavras Brazil
| | - Luke Parry
- Lancaster Environment Centre Lancaster University Lancaster UK
- Núcleo de Altos Estudos Amazônicos Universidade Federal do Pará (UFPA) Belém Brazil
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46
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Opinion: Putting all foods on the same table: Achieving sustainable food systems requires full accounting. Proc Natl Acad Sci U S A 2020; 116:18152-18156. [PMID: 31506376 DOI: 10.1073/pnas.1913308116] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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47
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Steenbergen DJ, Eriksson H, Hunnam K, Mills DJ, Stacey N. Following the fish inland: understanding fish distribution networks for rural development and nutrition security. Food Secur 2019. [DOI: 10.1007/s12571-019-00982-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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48
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Golden CD, Shapero A, Vaitla B, Smith MR, Myers SS, Stebbins E, Gephart JA. Impacts of Mainstream Hydropower Development on Fisheries and Human Nutrition in the Lower Mekong. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2019. [DOI: 10.3389/fsufs.2019.00093] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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49
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Lo M, Narulita S, Ickowitz A. The relationship between forests and freshwater fish consumption in rural Nigeria. PLoS One 2019; 14:e0218038. [PMID: 31185056 PMCID: PMC6559641 DOI: 10.1371/journal.pone.0218038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 05/23/2019] [Indexed: 01/11/2023] Open
Abstract
Nigerians depend on fish for maintaining diverse and healthy diets. Fish are a key source of protein and micronutrients, both of which are important for healthy diets. Some research has shown that forests provide important ecosystem functions that support the productive capacity and sustainability of inland fisheries. Our study aims to empirically assess the relationship between forest cover around rivers and fish consumption. We use data from the Living Standards Measurement Survey (LSMS) and spatially merge household and village data with forest cover and river maps. We estimate the relationship between forest cover around rivers and average village fresh fish consumption, while also accounting for other socio-economic and geographical determinants. We find that that the density of forest cover around rivers is positively and significantly correlated with village consumption of fresh fish. Our results suggest that forests influence the consumption of fresh fish by improving the productivity of inland fisheries and increasing the availability of fish. Aquatic habitats tend to be overlooked in debates on land use and food production, and yet can be critically important sources of nutrient-rich foods that are limited in rural diets in developing countries, particularly for the poor. Clearing forests for agriculture in order to produce more agricultural crops might have the unintended consequence of reducing another important food source.
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Affiliation(s)
- Michaela Lo
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
- * E-mail:
| | - Sari Narulita
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
| | - Amy Ickowitz
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
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50
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Elliott VL, Chheng P, Uy S, Holtgrieve GW. Monitoring of tropical freshwater fish resources for sustainable use. JOURNAL OF FISH BIOLOGY 2019; 94:1019-1025. [PMID: 30950505 DOI: 10.1111/jfb.13974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 03/13/2019] [Indexed: 06/09/2023]
Abstract
Tropical freshwater ecosystems are some of the world's most biodiverse and productive systems where determining what sustainable exploitation of inland fisheries looks like is particularly challenging. One of the greatest obstacles to sustainable management is collecting and using quality data on fish production and yield. The biodiversity and hydro-ecology of these systems often under open-access governance, add to the complexity of managing them. This paper describes an integrated citizen-science, earth observation, environmental DNA and independent survey approach to collecting fish and fisheries data, using the Cambodian Mekong as a case study.
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Affiliation(s)
- Vittoria L Elliott
- National Museum of Natural History, Smithsonian Institution, Northwest, Washington, USA
- Scientific Capacity Development Initiative, Biology Department, Fisheries Administration, Phnom Penh, Cambodia
| | - Phen Chheng
- Inland Fisheries Research and Development Institute, Fisheries Administration, Phnom Penh, Cambodia
| | - Sophorn Uy
- Inland Fisheries Research and Development Institute, Fisheries Administration, Phnom Penh, Cambodia
| | - Gordon W Holtgrieve
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, Washington, USA
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