Integration of aquaculture into crop–animal systems in Asia

Prein, M.

doi:10.1016/s0308-521x(01)00040-3

Cited by 160 publications

(101 citation statements)

References 18 publications

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“…In practice, diversity and integration are still poorly defined and, although there have been several studies that focus on integrated agro-ecosystems (Prein 2002;Pant et al 2005), there is no practical method to characterise, quantify, and assess integration of diverse agro-ecosystems. We define integration in agro-ecosystems as the degree to which the compartments (or activities in such systems) are interconnected by flows of material.…”

Section: Introductionmentioning

confidence: 99%

Analysing integration and diversity in agro-ecosystems by using indicators of network analysis

Rufino

Hengsdijk

Verhagen

2009

Nutr Cycl Agroecosyst

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Diversity of farming activities may increase income stability and reduce risks to resourcepoor households, while integration-using the outputs of one activity as input in another activity-may reduce dependency on external resources. In practice, diversity and integration are poorly defined, and there is no method to characterise them, hampering the exploration of their benefits. We introduce a method based on network analysis (NA) to assess the diversity and integration in farm household systems by using the Finn cycling index to characterise integration of farming activities, and the average mutual information, and the statistical uncertainty (H R ) to characterise diversity of flows. We used nitrogen (N) flows in an application of NA to crop-livestock systems of the highlands of Northern Ethiopia. N recycling was low (FCI \ 3%) in these systems independently of the farm type. Even with improved N management FCI was lower than 10%. Since large amounts of N are withdrawn from the system with the harvests, there are relatively few opportunities for recycling. The diversity in N flows increased from the poor to the wealthier farm households, but differences were small. The wealthier farm households did not recycle more N than the relatively less diverse and poorer farm household. The definition of the system and compartments boundaries must be made explicit in any application of the method as these strongly affect the results. NA appears useful to assess the effects of farm management practices on system performance and to support discussions on diversity and integration of agro-ecosystems.

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Section: Introductionmentioning

confidence: 99%

Analysing integration and diversity in agro-ecosystems by using indicators of network analysis

Rufino

Hengsdijk

Verhagen

2009

Nutr Cycl Agroecosyst

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“…Although this may be less important for closed aquaculture systems, which aspire to be completely insulated from the surrounding environment, the open systems that dominate production throughout Asia are fundamentally integrated into surrounding landscapes and ecological processes (e.g., Prein 2002, Neori et al 2007, Berg et al 2012, Peng et al 2013). The identification of transition pathways for innovation in socio-technical networks does bring in elements of sustainability, but often where these are related to technology.…”

Section: Socio-technical Transitions Theorymentioning

confidence: 99%

Making social sense of aquaculture transitions

Bush¹,

Marschke²

2014

E&S

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ABSTRACT. Resilience deals explicitly with change and provides a middle ground between the social and the environmental sciences. However, a growing critique by social scientists questions the ability of resilience thinking to adequately examine the social dimensions of change. The question that emerges is how social scientists should engage with resilience. We addressed this question by comparing resilience with agrarian change and transitions theory, through the backdrop of the fastest growing global food sector, aquaculture. Our analysis showed that each theoretical perspective provides fundamentally different insights into social and environmental transition inherent in the aquaculture sector. Although resilience thinking is best suited to assessing the ecological aspects of production, its systems ontology limits the inclusion of dynamic social relations or innovation. In contrast, agrarian transition enables a more meaningful understanding of how social relations are reconfigured as agrarian society shifts toward more capitalist modes of production, and transitions theory provides insights into social process of innovation. Given the epistemological differences between these theoretical approaches, we argue against attempts that reify systemic thinking by naturalizing social theories and concepts into resilience thinking. Instead, we argue that social theories such as agrarian change and transition theory should be seen as complimentary and that integration should focus on bridging results and insights. Doing so enables a more robust assessment of the social aspects of social-ecological transitions in the aquaculture sector and beyond.

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“…They proved that the main benefits of freshwater aquaculture were directly consuming more fish by households and income generations which fish families could afford to purchase other foods cheaper in markets for improving their daily intakes [3,[19][20][21][22][23]. In addition, the availabilities of fresh fish and employment creation also benefited to surrounding villagers and urban communities with cheaper prices and affordability to get the food by wages and salaries that generated from works, jobs in the supply chain of freshwater aquaculture industry related to input services; and output marketing activities.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Different Integrated Agriculture Aquaculture Systems in the Red River Delta of Vietnam

Huong¹,

Cuong²,

Thu³

et al. 2017

Fish Aquac J

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Freshwater aquaculture production systems are closely related to Integrated Agriculture Aquaculture systems (IAA). Four systems were identified from freshwater aquaculture farming in the Red River Delta of Vietnam. There was prevalently VAC system existence both inside and outside the residential area. The system was defined as farming diversifications and nutrient linkages among V (orchard), A (pond) and C (animal) components relying on the on-farm resources and off-farm integrations and linkages with other human activities. The development of the freshwater aquaculture systems was very diverse and dynamic.The paper presented the economic efficiency and effectiveness on four freshwater fish production systems. Clear evidence was found to provide evidence that the traditional VAC system was sustainable food supply model for the developing countries. Farms operated the VAC systems could easily diversify their farming activities, foods, foodstuffs, redundant employment, and income. Especially, income diversification was a practical strategy for rural farms to reduce the vulnerability on their agricultural practices both on production and market risks. The advantages were likely to ensure that VAC systems would still be more and more important role in northern Vietnam for food security and rural development under the context of agricultural land loss by transforming progressively into urbanisation and industrialisation.

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Integration of aquaculture into crop–animal systems in Asia

Cited by 160 publications

References 18 publications

Analysing integration and diversity in agro-ecosystems by using indicators of network analysis

Analysing integration and diversity in agro-ecosystems by using indicators of network analysis

Making social sense of aquaculture transitions

Efficiency of Different Integrated Agriculture Aquaculture Systems in the Red River Delta of Vietnam

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