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A framework developed by the COST Action Circular City (an EU-funded network of 500+ scientists from 40+ countries; COST = Cooperation in Science and Technology) for addressing Urban Circularity Challenges (UCCs) with nature-based solutions (NBSs) was analyzed by various urban sectors which refer to different fields of activities for circular management of resources in cities (i.e., reducing use of resources and production of waste). The urban sectors comprise the built environment, urban water management, resource recovery, and urban farming. We present main findings from sector analyses, discuss different sector perspectives, and show ways to overcome these differences. The results reveal the potential of NBSs to address multiple sectors, as well as multiple UCCs. While water has been identified as a key element when using NBSs in the urban environment, most NBSs are interconnected and also present secondary benefits for other resources. Using representative examples, we discuss how a holistic and systemic approach could facilitate the circular use of resources in cities. Currently, there is often a disciplinary focus on one resource when applying NBSs. The full potential of NBSs to address multifunctionality is, thus, usually not fully accounted for. On the basis of our results, we conclude that experts from various disciplines can engage in a cross-sectoral exchange and identify the full potential of NBSs to recover resources in circular cities and provide secondary benefits to improve the livelihood for locals. This is an important first step toward the full multifunctionality potential enabling of NBSs.
Guenter Langergraber; Joana A. C. Castellar; Theis Raaschou Andersen; Maria-Beatrice Andreucci; Gösta F. M. Baganz; Gianluigi Buttiglieri; Alba Canet-Martí; Pedro N. Carvalho; David C. Finger; Tjaša Griessler Bulc; Ranka Junge; Boldizsár Megyesi; Dragan Milošević; Hasan Volkan Oral; David Pearlmutter; Rocío Pineda-Martos; Bernhard Pucher; Eric D. van Hullebusch; Nataša Atanasova. Towards a Cross-Sectoral View of Nature-Based Solutions for Enabling Circular Cities. Water 2021, 13, 2352 .
AMA StyleGuenter Langergraber, Joana A. C. Castellar, Theis Raaschou Andersen, Maria-Beatrice Andreucci, Gösta F. M. Baganz, Gianluigi Buttiglieri, Alba Canet-Martí, Pedro N. Carvalho, David C. Finger, Tjaša Griessler Bulc, Ranka Junge, Boldizsár Megyesi, Dragan Milošević, Hasan Volkan Oral, David Pearlmutter, Rocío Pineda-Martos, Bernhard Pucher, Eric D. van Hullebusch, Nataša Atanasova. Towards a Cross-Sectoral View of Nature-Based Solutions for Enabling Circular Cities. Water. 2021; 13 (17):2352.
Chicago/Turabian StyleGuenter Langergraber; Joana A. C. Castellar; Theis Raaschou Andersen; Maria-Beatrice Andreucci; Gösta F. M. Baganz; Gianluigi Buttiglieri; Alba Canet-Martí; Pedro N. Carvalho; David C. Finger; Tjaša Griessler Bulc; Ranka Junge; Boldizsár Megyesi; Dragan Milošević; Hasan Volkan Oral; David Pearlmutter; Rocío Pineda-Martos; Bernhard Pucher; Eric D. van Hullebusch; Nataša Atanasova. 2021. "Towards a Cross-Sectoral View of Nature-Based Solutions for Enabling Circular Cities." Water 13, no. 17: 2352.
The aquaponic principle is the coupling of animal aquaculture (e.g. fish) with plant production (e.g. vegetables) for saving resources. At present, various definitions of aquaponics exist, some bearing the risk of misinterpretation by dismissing the original meaning or being contradictory. In addition, there is no standard terminology for the aspects of coupling between the aquaponic subsystems. In this study, we addressed both issues. (1) We developed new or revised definitions that are summarised by: Aquaponic farming comprises aquaponics (which couples tank-based animal aquaculture with hydroponics) and trans-aquaponics, which extends aquaponics to tankless aquaculture as well as non-hydroponics plant cultivation methods. Within our conceptual system, the term aquaponics corresponds to the definitions of FAO and EU. (2) A system analysis approach was utilised to explore different aquaponic setups aiming to better describe the way aquaponic subsystems are connected. We introduced the new terms ‘coupling type’ and ‘coupling degree’, where the former qualitatively characterises the water-mediated connections of aquaponic subsystems. A system with on-demand nutrient water supply for the independent operating plant cultivation is an ‘on-demand coupled system’ and we propose to deprecate the counterintuitive term ‘decoupled system’ for this coupling type. The coupling degree comprises a set of parameters to quantitatively determine the coupling's efficiency of internal streams, for example, water and nutrients. This new framework forms a basis for improved communication, provides a uniform metric for comparing aquaponic facilities, and offers criteria for facility optimisation. In future system descriptions, it will simplify evaluation of the coupling's contribution to sustainability of aquaponics.
Gösta F. M. Baganz; Ranka Junge; Maria C. Portella; Simon Goddek; Karel J. Keesman; Daniela Baganz; Georg Staaks; Christopher Shaw; Frank Lohrberg; Werner Kloas. The aquaponic principle—It is all about coupling. Reviews in Aquaculture 2021, 1 .
AMA StyleGösta F. M. Baganz, Ranka Junge, Maria C. Portella, Simon Goddek, Karel J. Keesman, Daniela Baganz, Georg Staaks, Christopher Shaw, Frank Lohrberg, Werner Kloas. The aquaponic principle—It is all about coupling. Reviews in Aquaculture. 2021; ():1.
Chicago/Turabian StyleGösta F. M. Baganz; Ranka Junge; Maria C. Portella; Simon Goddek; Karel J. Keesman; Daniela Baganz; Georg Staaks; Christopher Shaw; Frank Lohrberg; Werner Kloas. 2021. "The aquaponic principle—It is all about coupling." Reviews in Aquaculture , no. : 1.
Aquaponic food production requires a broad spectrum of knowledge in order to understand and manage the processes involved, and for commercial aquaponics to develop its full potential, it will require an appropriately trained workforce. Devised in collaboration as an Erasmus+ Strategic Partnership for Higher Education, [email protected] covers the basics of aquaponics with a focus on transferable and entrepreneurial skills. The aquaponics curriculum can either be taught using blended learning—combining digital media and the internet with classroom formats that require the physical co-presence of the teacher and students—or as an e-learning course. The supplementary entrepreneurial skills module was devised on the basis of two surveys: of aquaponics companies around the world, in order to get a broad overview of the skills that are important in the early years of a business; and of European higher education institutions that teach subjects where aquaponics could be incorporated as an optional module. The entrepreneurial skills curriculum introduces the main processes involved in developing a business idea into a start-up company. All of the [email protected] resources—the e-learning modules, textbooks, module guides for students, curriculum guides for teachers, best practice guide for teaching aquaponics, and toolbox of innovative didactic practices—are open access.
Sarah Milliken; Andrej Ovca; Nadine Antenen; Morris Villarroel; Tjaša Bulc; BenZ Kotzen; Ranka Junge. [email protected]—The First Aquaponics Curriculum to Be Developed Specifically for University Students. Horticulturae 2021, 7, 18 .
AMA StyleSarah Milliken, Andrej Ovca, Nadine Antenen, Morris Villarroel, Tjaša Bulc, BenZ Kotzen, Ranka Junge. [email protected]—The First Aquaponics Curriculum to Be Developed Specifically for University Students. Horticulturae. 2021; 7 (2):18.
Chicago/Turabian StyleSarah Milliken; Andrej Ovca; Nadine Antenen; Morris Villarroel; Tjaša Bulc; BenZ Kotzen; Ranka Junge. 2021. "[email protected]—The First Aquaponics Curriculum to Be Developed Specifically for University Students." Horticulturae 7, no. 2: 18.
The presence and transformations of nitrogen (N) in the environment depend on a variety of environmental factors but are also strongly influenced by anthropogenic activities such as modern agriculture. Understanding N transformations within the context of agricultural systems is crucial for efficient use thereof. The aim of this study was to investigate the changes in concentration of N forms (ammonium, nitrite, nitrate and organic N) within an aquaponic system, a modern agricultural system, in order to obtain insights into environmental pressures influencing N transformation processes. By measuring the concentrations of the individual N compounds, complemented by the determination of abiotic parameters and other relevant nutrients within the system water at 13 sampling points, significant differences between compartments that build up an aquaponic system could be demonstrated. These differences were attributed to individual microenvironments specific to the aerobic loop, anaerobic loop and radial flow settler as a connection between the two, shaping the microbial processes within the aquaponic system.
Zala Schmautz; Carlos A. Espinal; Theo H.M. Smits; Emmanuel Frossard; Ranka Junge. Nitrogen transformations across compartments of an aquaponic system. Aquacultural Engineering 2021, 92, 102145 .
AMA StyleZala Schmautz, Carlos A. Espinal, Theo H.M. Smits, Emmanuel Frossard, Ranka Junge. Nitrogen transformations across compartments of an aquaponic system. Aquacultural Engineering. 2021; 92 ():102145.
Chicago/Turabian StyleZala Schmautz; Carlos A. Espinal; Theo H.M. Smits; Emmanuel Frossard; Ranka Junge. 2021. "Nitrogen transformations across compartments of an aquaponic system." Aquacultural Engineering 92, no. : 102145.
Background An aquaponic system couples cultivation of plants and fish in the same aqueous medium. The system consists of interconnected compartments for fish rearing and plant production, as well as for water filtration, with all compartments hosting diverse microbial communities, which interact within the system. Due to the design, function and operation mode of the individual compartments, each of them exhibits unique biotic and abiotic conditions. Elucidating how these conditions shape microbial communities is useful in understanding how these compartments may affect the quality of the water, in which plants and fish are cultured. Results We investigated the possible relationships between microbial communities from biofilms and water quality parameters in different compartments of the aquaponic system. Biofilm samples were analyzed by total community profiling for bacterial and archaeal communities. The results implied that the oxygen levels could largely explain the main differences in abiotic parameters and microbial communities in each compartment of the system. Aerobic system compartments are highly biodiverse and work mostly as a nitrifying biofilter, whereas biofilms in the anaerobic compartments contain a less diverse community. Finally, the part of the system connecting the aerobic and anaerobic processes showed common conditions where both aerobic and anaerobic processes were observed. Conclusion Different predicted microbial activities for each compartment were found to be supported by the abiotic parameters, of which the oxygen saturation, total organic carbon and total nitrogen differentiated clearly between samples from the main aerobic loop and the anaerobic compartments. The latter was also confirmed using microbial community profile analysis.
Zala Schmautz; Carlos A. Espinal; Andrea M. Bohny; Fabio Rezzonico; Ranka Junge; Emmanuel Frossard; Theo H. M. Smits. Environmental parameters and microbial community profiles as indication towards microbial activities and diversity in aquaponic system compartments. BMC Microbiology 2021, 21, 1 -11.
AMA StyleZala Schmautz, Carlos A. Espinal, Andrea M. Bohny, Fabio Rezzonico, Ranka Junge, Emmanuel Frossard, Theo H. M. Smits. Environmental parameters and microbial community profiles as indication towards microbial activities and diversity in aquaponic system compartments. BMC Microbiology. 2021; 21 (1):1-11.
Chicago/Turabian StyleZala Schmautz; Carlos A. Espinal; Andrea M. Bohny; Fabio Rezzonico; Ranka Junge; Emmanuel Frossard; Theo H. M. Smits. 2021. "Environmental parameters and microbial community profiles as indication towards microbial activities and diversity in aquaponic system compartments." BMC Microbiology 21, no. 1: 1-11.
In recent years, aquaponics has been receiving increased interest globally as a commercial food production technology and aquaponics start-up companies have been formed in most European countries. Between 2014 and 2018, the European-funded COST Action FA1305 “The EU Aquaponics Hub-Realising Sustainable Integrated Fish and Vegetable Production for the EU” created a strong network of researchers and entrepreneurs. However, surveys show that the aquaponic production in Europe is still very limited, and very few companies are economically viable. In order to obtain insights into the barriers to early development of commercial aquaponics, two surveys were carried out—one in Europe, which included France, and one in France alone, with a different protocol. Henceforth, for simplicity, the former will be referred to as Europe and the latter as France. The results reveal that the development of commercial aquaponics has hit the level of “disillusionment”, caused by numerous challenges facing commercial food production. As the understanding of the processes involved in aquaponics is increasing, it will be very interesting to follow the developments in the field over the coming years in order to ascertain whether aquaponics will follow the phases outlined by the “Gartner’s Hype Cycle” and thus proceed to become an established technology, or whether it will remain an “one hit wonder” and disappear in the “Trough of Disillusionment”.
Maja Turnsek; Agnes Joly; Ragnheidur Thorarinsdottir; Ranka Junge. Challenges of Commercial Aquaponics in Europe: Beyond the Hype. Water 2020, 12, 306 .
AMA StyleMaja Turnsek, Agnes Joly, Ragnheidur Thorarinsdottir, Ranka Junge. Challenges of Commercial Aquaponics in Europe: Beyond the Hype. Water. 2020; 12 (1):306.
Chicago/Turabian StyleMaja Turnsek; Agnes Joly; Ragnheidur Thorarinsdottir; Ranka Junge. 2020. "Challenges of Commercial Aquaponics in Europe: Beyond the Hype." Water 12, no. 1: 306.
Research and practice during the last 20 years has shown that urban agriculture can contribute to minimising the effects of climate change by, at the same time, improving quality of life in urban areas. In order to do so most effectively, land use and spatial planning are crucial so as to obtain and maintain a supportive green infrastructure and to secure citizens' healthy living conditions. As people today trend more towards living in green and sustainable city centres that can offer fresh and locally produced food, cities become again places for growing food. The scope of urban agriculture thereby is to establish food production sites within the city's sphere; for example, through building-integrated agriculture including concepts such as aquaponics, indoor agriculture, vertical farming, rooftop production, edible walls, as well as through urban farms, edible landscapes, school gardens and community gardens. Embedded in changing urban food systems, the contribution of urban agriculture to creating sustainable and climate-friendly cities is pivotal as it has the capacity to integrate other resource streams such as water, waste and energy. This article describes some of the current aspects of the circular city debate where urban agriculture is pushing forward the development of material and resource cycling in cities.
S. L. G. Skar; R. Pineda-Martos; A. Timpe; Bernd Pölling; K. Bohn; M. Külvik; Cecília Delgado; Celestina Pedras; T. A. Paço; M. Ćujić; N. Tzortzakis; A. Chrysargyris; A. Peticila; Gitana Alencikiene; H. Monsees; Ranka Junge. Urban agriculture as a keystone contribution towards securing sustainable and healthy development for cities in the future. Blue-Green Systems 2019, 2, 1 -27.
AMA StyleS. L. G. Skar, R. Pineda-Martos, A. Timpe, Bernd Pölling, K. Bohn, M. Külvik, Cecília Delgado, Celestina Pedras, T. A. Paço, M. Ćujić, N. Tzortzakis, A. Chrysargyris, A. Peticila, Gitana Alencikiene, H. Monsees, Ranka Junge. Urban agriculture as a keystone contribution towards securing sustainable and healthy development for cities in the future. Blue-Green Systems. 2019; 2 (1):1-27.
Chicago/Turabian StyleS. L. G. Skar; R. Pineda-Martos; A. Timpe; Bernd Pölling; K. Bohn; M. Külvik; Cecília Delgado; Celestina Pedras; T. A. Paço; M. Ćujić; N. Tzortzakis; A. Chrysargyris; A. Peticila; Gitana Alencikiene; H. Monsees; Ranka Junge. 2019. "Urban agriculture as a keystone contribution towards securing sustainable and healthy development for cities in the future." Blue-Green Systems 2, no. 1: 1-27.
This chapter provides an overview of possible strategies for implementing aquaponics in curricula at different levels of education, illustrated by case studies from different countries. Aquaponics can promote scientific literacy and provide a useful tool for teaching the natural sciences at all levels, from primary through to tertiary education. An aquaponics classroom model system can provide multiple ways of enriching classes in Science, Technology, Engineering and Mathematics (STEM), and the day-to-day maintenance of an aquaponics can also enable experiential learning. Aquaponics can thus become an enjoyable and effective way for learners to study STEM content, and can also be used for teaching subjects such as business and economics, and for addressing issues like sustainable development, environmental science, agriculture, food systems, and health. Using learner and teacher evaluations of the use of aquaponics at different educational levels, we attempt to answer the question of whether aquaponics fulfils its promise as an educational tool.
Ranka Junge; Tjasa Griessler Bulc; Dieter Anseeuw; Hijran Yavuzcan Yildiz; Sarah Milliken. Aquaponics as an Educational Tool. Aquaponics Food Production Systems 2019, 561 -595.
AMA StyleRanka Junge, Tjasa Griessler Bulc, Dieter Anseeuw, Hijran Yavuzcan Yildiz, Sarah Milliken. Aquaponics as an Educational Tool. Aquaponics Food Production Systems. 2019; ():561-595.
Chicago/Turabian StyleRanka Junge; Tjasa Griessler Bulc; Dieter Anseeuw; Hijran Yavuzcan Yildiz; Sarah Milliken. 2019. "Aquaponics as an Educational Tool." Aquaponics Food Production Systems , no. : 561-595.
Hydroponics is a method to grow crops without soil, and as such, these systems are added to aquaculture components to create aquaponics systems. Thus, together with the recirculating aquaculture system (RAS), hydroponic production forms a key part of the aqua-agricultural system of aquaponics. Many different existing hydroponic technologies can be applied when designing aquaponics systems. This depends on the environmental and financial circumstances, the type of crop that is cultivated and the available space. This chapter provides an overview of different hydroponic types, including substrates, nutrients and nutrient solutions, and disinfection methods of the recirculating nutrient solutions.
Carmelo Maucieri; Carlo Nicoletto; Erik van Os; Dieter Anseeuw; Robin Van Havermaet; Ranka Junge. Hydroponic Technologies. Aquaponics Food Production Systems 2019, 77 -110.
AMA StyleCarmelo Maucieri, Carlo Nicoletto, Erik van Os, Dieter Anseeuw, Robin Van Havermaet, Ranka Junge. Hydroponic Technologies. Aquaponics Food Production Systems. 2019; ():77-110.
Chicago/Turabian StyleCarmelo Maucieri; Carlo Nicoletto; Erik van Os; Dieter Anseeuw; Robin Van Havermaet; Ranka Junge. 2019. "Hydroponic Technologies." Aquaponics Food Production Systems , no. : 77-110.
Aquaponics is a production system based on the dynamic equilibrium between fish, plants, and microorganisms. In order to better understand the role of microorganisms in this tripartite relationship, we studied the bacterial communities hosted in eight aquaponic and aquaculture systems. The bacterial communities were analyzed by 16S rRNA gene deep sequencing. At the phylum level, the bacterial communities from all systems were relatively similar with a predominance of Proteobacteria and Bacteroidetes. At the genus level, however, the communities present in the sampled systems were more heterogeneous. The biofilter samples harbored more diverse communities than the corresponding sump samples. The core microbiomes from the coupled and decoupled systems shared more common operational taxonomic units than with the aquaculture systems. Eventually, some of the taxa identified in the systems could have beneficial functions for plant growth and health, but a deeper analysis would be required to identify the precise functions involved in aquaponics.
Mathilde Eck; Abdoul Razack Sare; Sébastien Massart; Zala Schmautz; Ranka Junge; Theo H. M. Smits; M. Haïssam Jijakli. Exploring Bacterial Communities in Aquaponic Systems. Water 2019, 11, 260 .
AMA StyleMathilde Eck, Abdoul Razack Sare, Sébastien Massart, Zala Schmautz, Ranka Junge, Theo H. M. Smits, M. Haïssam Jijakli. Exploring Bacterial Communities in Aquaponic Systems. Water. 2019; 11 (2):260.
Chicago/Turabian StyleMathilde Eck; Abdoul Razack Sare; Sébastien Massart; Zala Schmautz; Ranka Junge; Theo H. M. Smits; M. Haïssam Jijakli. 2019. "Exploring Bacterial Communities in Aquaponic Systems." Water 11, no. 2: 260.
C. Nicoletto; C. Maucieri; Zala Schmautz; M. Borin; P. Sambo; Ranka Junge. Babyleaf NFT production and water management in aquaponic system. Acta Horticulturae 2018, 159 -164.
AMA StyleC. Nicoletto, C. Maucieri, Zala Schmautz, M. Borin, P. Sambo, Ranka Junge. Babyleaf NFT production and water management in aquaponic system. Acta Horticulturae. 2018; (1215):159-164.
Chicago/Turabian StyleC. Nicoletto; C. Maucieri; Zala Schmautz; M. Borin; P. Sambo; Ranka Junge. 2018. "Babyleaf NFT production and water management in aquaponic system." Acta Horticulturae , no. 1215: 159-164.
Aquaponics is a recirculating technology that combines aquaculture with hydroponics. It allows nutrients from fish waste to feed plants and thus saves water and nutrients. However, there is a mismatch between the nutrients provided by the fish waste and plant needs. Because of this, some nutrients, notably N, tend to accumulate in the aquaponic water (APW or AP water). The aim of this study was to investigate how APW, which is depleted of P and K but still rich in N, could be further utilized. APW was used in a mesocosm and compared with APW from the same source that had been supplemented with macro-nutrients (complemented AP water or CAPW) and a hydroponic control (HC). Mizuna (M) and rocket salad (R) were used as short-cycle vegetable crops in a NFT system. The results revealed that the low production potential of APW was mainly caused by the lack of P and K. If these were supplemented, the yields were comparable to those in the HC. M yield in CAPW was significantly higher than that of HC, probably due to biostimulant effects connected to the organic components in the water as a result of fish farming. Water type, cultivation density, and intercropping significantly influenced the qualitative characteristics of the crop in terms of antioxidant compounds and minerals. Nitrate content in vegetables was lower than European regulation limits. The extended use of APW is viable if the missing nutrients are supplemented; this could be a strategy to increase the efficiency of water and nitrogen use, while further reducing environmental impact.
Carlo Nicoletto; Carmelo Maucieri; Alex Mathis; Zala Schmautz; Tamás Kömives; Paolo Sambo; Ranka Junge. Extension of Aquaponic Water Use for NFT Baby-Leaf Production: Mizuna and Rocket Salad. Agronomy 2018, 8, 75 .
AMA StyleCarlo Nicoletto, Carmelo Maucieri, Alex Mathis, Zala Schmautz, Tamás Kömives, Paolo Sambo, Ranka Junge. Extension of Aquaponic Water Use for NFT Baby-Leaf Production: Mizuna and Rocket Salad. Agronomy. 2018; 8 (5):75.
Chicago/Turabian StyleCarlo Nicoletto; Carmelo Maucieri; Alex Mathis; Zala Schmautz; Tamás Kömives; Paolo Sambo; Ranka Junge. 2018. "Extension of Aquaponic Water Use for NFT Baby-Leaf Production: Mizuna and Rocket Salad." Agronomy 8, no. 5: 75.
Bettina König; Judith Janker; Tilman Reinhardt; Morris Villarroel; Ranka Junge. Analysis of aquaponics as an emerging technological innovation system. Journal of Cleaner Production 2018, 180, 232 -243.
AMA StyleBettina König, Judith Janker, Tilman Reinhardt, Morris Villarroel, Ranka Junge. Analysis of aquaponics as an emerging technological innovation system. Journal of Cleaner Production. 2018; 180 ():232-243.
Chicago/Turabian StyleBettina König; Judith Janker; Tilman Reinhardt; Morris Villarroel; Ranka Junge. 2018. "Analysis of aquaponics as an emerging technological innovation system." Journal of Cleaner Production 180, no. : 232-243.
Nutrients that are contained in aquaculture effluent may not supply sufficient levels of nutrients for proper plant development and growth in hydroponics; therefore, they need to be supplemented. To determine the required level of supplementation, three identical aquaponic systems (A, B, and C) and one hydroponic system (D) were stocked with lettuce, mint, and mushroom herbs. The aquaponic systems were stocked with Nile tilapia. System A only received nutrients derived from fish feed; system B received nutrients from fish feed as well as weekly supplements of micronutrients and Fe; system C received the same nutrients as B, with weekly supplements of the macronutrients, P and K; in system D, a hydroponic inorganic solution containing N, Ca, and the same nutrients as system C was added weekly. Lettuce achieved the highest yields in system C, mint in system B, and mushroom herb in systems A and B. The present study demonstrated that the nutritional requirements of the mint and mushroom herb make them suitable for aquaponic farming because they require low levels of supplement addition, and hence little management effort, resulting in minimal cost increases. While the addition of supplements accelerated the lettuce growth (Systems B, C), and even surpassed the growth in hydroponic (System C vs. D), the nutritional quality (polyphenols, nitrate content) was better without supplementation.
Valentina Nozzi; Andreas Graber; Zala Schmautz; Alex Mathis; Ranka Junge. Nutrient Management in Aquaponics: Comparison of Three Approaches for Cultivating Lettuce, Mint and Mushroom Herb. Agronomy 2018, 8, 27 .
AMA StyleValentina Nozzi, Andreas Graber, Zala Schmautz, Alex Mathis, Ranka Junge. Nutrient Management in Aquaponics: Comparison of Three Approaches for Cultivating Lettuce, Mint and Mushroom Herb. Agronomy. 2018; 8 (3):27.
Chicago/Turabian StyleValentina Nozzi; Andreas Graber; Zala Schmautz; Alex Mathis; Ranka Junge. 2018. "Nutrient Management in Aquaponics: Comparison of Three Approaches for Cultivating Lettuce, Mint and Mushroom Herb." Agronomy 8, no. 3: 27.
Kyra Hoevenaars; Ranka Junge; Tamas Bardocz; Matej Leskovec. EU policies: New opportunities for aquaponics. Ecocycles 2018, 4, 10 -15.
AMA StyleKyra Hoevenaars, Ranka Junge, Tamas Bardocz, Matej Leskovec. EU policies: New opportunities for aquaponics. Ecocycles. 2018; 4 (1):10-15.
Chicago/Turabian StyleKyra Hoevenaars; Ranka Junge; Tamas Bardocz; Matej Leskovec. 2018. "EU policies: New opportunities for aquaponics." Ecocycles 4, no. 1: 10-15.
Carmelo Maucieri; Andrea A. Forchino; Carlo Nicoletto; Ranka Junge; Roberto Pastres; Paolo Sambo; Maurizio Borin. Life cycle assessment of a micro aquaponic system for educational purposes built using recovered material. Journal of Cleaner Production 2018, 172, 3119 -3127.
AMA StyleCarmelo Maucieri, Andrea A. Forchino, Carlo Nicoletto, Ranka Junge, Roberto Pastres, Paolo Sambo, Maurizio Borin. Life cycle assessment of a micro aquaponic system for educational purposes built using recovered material. Journal of Cleaner Production. 2018; 172 ():3119-3127.
Chicago/Turabian StyleCarmelo Maucieri; Andrea A. Forchino; Carlo Nicoletto; Ranka Junge; Roberto Pastres; Paolo Sambo; Maurizio Borin. 2018. "Life cycle assessment of a micro aquaponic system for educational purposes built using recovered material." Journal of Cleaner Production 172, no. : 3119-3127.
Tamas Komives; Ranka Junge. Importance of nickel as a micronutrient in aquaponic systems–some theoretical considerations. Ecocycles 2018, 4, 7 -9.
AMA StyleTamas Komives, Ranka Junge. Importance of nickel as a micronutrient in aquaponic systems–some theoretical considerations. Ecocycles. 2018; 4 (2):7-9.
Chicago/Turabian StyleTamas Komives; Ranka Junge. 2018. "Importance of nickel as a micronutrient in aquaponic systems–some theoretical considerations." Ecocycles 4, no. 2: 7-9.
This paper discusses the framework for the development of an Energy Toolbox (ETB). The aim of the ETB is to support the design of domestic Zero Emission Buildings (ZEBs), according to the concept of net zero-energy buildings during the early architectural design and planning phases. The ETB concept is based on the calculation of the energy demand for heating, cooling, lighting, and appliances. Based on a building’s energy demand, technologies for the onsite conversion and production of the specific forms and quantities of final and primary energy by means of renewable energy carriers can be identified. The calculations of the ETB are based on the building envelope properties of a primary building design, as well as the physical and climate parameters required for the calculation of heat transfer coefficients, heat gains, and heat losses. The ETB enables the selection and rough dimensioning of technologies and systems to meet, and, wherever possible, reduce the thermal and electric energy demand of a building. The technologies included comprise green facades, adaptable dynamic lighting, shading devices, heat pumps, photovoltaic generators, solar thermal collectors, adiabatic cooling, and thermal storage. The ETB facilitates the balancing of the energy consumption and the production of renewable energies of a primary building design.
Christoph Koller; Max Jacques Talmon-Gros; Ranka Junge; Thorsten Schuetze. Energy Toolbox—Framework for the Development of a Tool for the Primary Design of Zero Emission Buildings in European and Asian Cities. Sustainability 2017, 9, 2244 .
AMA StyleChristoph Koller, Max Jacques Talmon-Gros, Ranka Junge, Thorsten Schuetze. Energy Toolbox—Framework for the Development of a Tool for the Primary Design of Zero Emission Buildings in European and Asian Cities. Sustainability. 2017; 9 (12):2244.
Chicago/Turabian StyleChristoph Koller; Max Jacques Talmon-Gros; Ranka Junge; Thorsten Schuetze. 2017. "Energy Toolbox—Framework for the Development of a Tool for the Primary Design of Zero Emission Buildings in European and Asian Cities." Sustainability 9, no. 12: 2244.
This paper reports the results of the first study of an aquaponic system for Pangasianodon hypophthalmus production that uses Lactuca sativa L. (lettuce) and Cichorium intybus L. rubifolium group (red chicory) intercropping in the hydroponic section. The experiment was conducted in a greenhouse at the Zurich University of Applied Sciences, Wädenswil, Switzerland, using nine small-scale aquaponic systems (each approximately 400 L), with the nutrient film technique (NFT). The intercropping of vegetables did not influence the water temperature, pH, electric conductivity (EC), oxidation–reduction potential, nor O2 content. Intercropping with red chicory increased the lettuce sugar content (+16.0% and +25.3% for glucose and fructose, respectively) and reduced the lettuce caffeic acid content (−16.8%). In regards to bitter taste compounds (sesquiterpene lactones), intercropping reduced the concentrations of dihydro-lactucopicrin + lactucopicrin (−42.0%) in lettuce, and dihydro-lactucopicrin + lactucopicrin (−22.0%) and 8-deoxy–lactucin + dihydro-lactucopicrin oxalate (−18.7%) in red chicory, whereas dihydro-lactucin content increased (+40.6%) in red chicory in regards to monoculture. A significantly higher organic nitrogen content was found in the lettuce (3.9%) than in the red chicory biomass (3.4%), following the intercropping treatment. Anion and cation contents in vegetables were affected by species (Cl−, NO3−, PO43−, SO42−, and Ca2+), intercropping (K+ and Mg2+), and species × intercropping interactions (NO2− and NH4+). Experimental treatments (monoculture vs intercropping and distance from NFT inlet) did not exert significant effects on leaf SPAD (index of relative chlorophyll content) values, whereas the red coloration of the plants increased from the inlet to the outlet of the NFT channel. Intercropping of lettuce and red chicory affected the typical taste of these vegetables by increasing the sweetness of lettuce and changing the ratio among bitter taste compounds in red chicory. These results suggest intercropping as a possible solution for improving vegetable quality in aquaponics. Although the results are interesting, they have been obtained in a relatively short period, thus investigations for longer periods are necessary to confirm these findings. Further studies are also needed to corroborate the positive effect of the presence of red chicory in the system on fish production parameters.
Carmelo Maucieri; Carlo Nicoletto; Zala Schmautz; Paolo Sambo; Tamas Komives; Maurizio Borin; Ranka Junge. Vegetable Intercropping in a Small-Scale Aquaponic System. Agronomy 2017, 7, 63 .
AMA StyleCarmelo Maucieri, Carlo Nicoletto, Zala Schmautz, Paolo Sambo, Tamas Komives, Maurizio Borin, Ranka Junge. Vegetable Intercropping in a Small-Scale Aquaponic System. Agronomy. 2017; 7 (4):63.
Chicago/Turabian StyleCarmelo Maucieri; Carlo Nicoletto; Zala Schmautz; Paolo Sambo; Tamas Komives; Maurizio Borin; Ranka Junge. 2017. "Vegetable Intercropping in a Small-Scale Aquaponic System." Agronomy 7, no. 4: 63.
Aquaponics, the integrated multi-trophic fish and plants production in quasi-closed recirculating system, is one of the newest sustainable food production systems. The hydroponic component of the AP directly influences water quality (in turn influencing fish growth and health), and water consumption (through evapotranspiration) of the entire system. In order to assess the role of the design and the management of the hydroponic component on the overall performance, and water consumption of the aquaponics, 122 papers published from 1979 to 2017 were reviewed. Although no unequivocal results were found, the nutrient film technique appears in several aspects less efficient than medium-based or floating raft hydroponics. The best system performance in terms of fish and plant growth, and the highest nutrient removal from water was achieved at water flow between 0.8 L min-1 and 8.0 L min-1. Data on water consumption of aquaponics are scarce, and no correlation between the ratio of hydroponic unit surface/fish tank volume and the system water loss was found. However, daily water loss was positively correlated with the hydroponic surface/fish tank volume ratio if the same experimental conditions and/or systems were compared. The plant species grown in hydroponics influenced the daily water loss in aquaponics, whereas no effect was exerted by the water flow (reciprocating flood/drain cycle or constant flow) or type (medium-based, floating or nutrient film technique) of hydroponics.
Carmelo Maucieri; Carlo Nicoletto; Ranka Junge; Zala Schmautz; Paolo Sambo; Maurizio Borin. Hydroponic systems and water management in aquaponics: a review. Italian Journal of Agronomy 2017, 11, 1 .
AMA StyleCarmelo Maucieri, Carlo Nicoletto, Ranka Junge, Zala Schmautz, Paolo Sambo, Maurizio Borin. Hydroponic systems and water management in aquaponics: a review. Italian Journal of Agronomy. 2017; 11 ():1.
Chicago/Turabian StyleCarmelo Maucieri; Carlo Nicoletto; Ranka Junge; Zala Schmautz; Paolo Sambo; Maurizio Borin. 2017. "Hydroponic systems and water management in aquaponics: a review." Italian Journal of Agronomy 11, no. : 1.