An Investigation of Aquaponics Using Brackish Water Resources in the Negev Desert

Kotzen, Benz; Appelbaum, Samuel

doi:10.1080/10454438.2010.527571

Cited by 33 publications

(37 citation statements)

References 3 publications

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“…Water temperature in our study was within the recommendations, which resulted in good early growth response. The mean concentration of ammonium was 1.82 mg/L, similar to 1.87 mg/L reported by Kotzen and Appelbaum () at the start of aquaponic cultivation of tilapia. We did not find reports on specific tolerance of cucumber to ammonium.…”

Section: Discussionsupporting

confidence: 86%

Stochastic modelling of aquaponic production of tilapia (Oreochromis niloticus ) with lettuce (Lactuca sativa ) and cucumber (Cucumis sativus )

et al. 2018

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We propose stochastic models for predicting and analysing the production of tilapia (Oreochromis niloticus), lettuce (Lactuca sativa), and cucumber (Cucumis sativus) cultivated in an aquaponic system. Fish and plants were cultivated in a shade house using 30, 60, and 90 fish/m3 employing an NFT system. Results from Monte Carlo simulation showed that higher yields of tilapia and cucumber, as well as larger plant sizes, were obtained by stocking at the highest density (90 fish/m3). At this density, with 95% confidence, yields of tilapia varied from 39.60 to 59.26 kg/m3, the final length of lettuce leaves varied from 13.53 to 28.5 cm, the final length of cucumber plant varied from 119 to 235.3 cm, and biomass of cucumber varied from 0.98 to 0.99 kg/m2. Regression and sensitivity analyses showed that dissolved oxygen, density, temperature, and electrical conductivity significantly affected the production of tilapia; density, nitrites, pH, and temperature influenced lettuce production; ammonium, pH, and density affected the production of cucumber plants; and ammonium and density influenced yields of cucumber. The greatest certainty to achieve higher yields of large tilapia was found at low densities. For plants, there was more certainty of harvesting larger products when cultivated with tilapia stocked at the highest density. A preliminary economic analysis of tilapia production showed that net revenues ranged from USD$ 18.50 to 81.76 per system, and that the best results were obtained when using the highest stocking density. We conclude that the models are useful for predicting and analysing the production of an aquaponic system.

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Section: Discussionsupporting

confidence: 86%

Stochastic modelling of aquaponic production of tilapia (Oreochromis niloticus ) with lettuce (Lactuca sativa ) and cucumber (Cucumis sativus )

et al. 2018

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“…At the end of the experiment, the values of nitrate (NO 3 ) and phosphate (PO 4 ) were significantly higher (p < 0.05) in ASW than in AFW (Figure 1). During the trial, the values of NH 4 and NO 2 ranged between 0.05 mg/L and 0.01 mg/L and between 0.03 mg/L and 0.01 mg/L, respectively. At the end of the experiment, the concentrations of Na, Cl, Mg, K, Zn, S and Cu resulted significantly higher in AFW than in ASW, while the concentrations of Ca and Fe were not statistically different (Figure 2) between the two groups.…”

Section: Water Qualitymentioning

confidence: 99%

“…However, this mode of cultivation may also be of interest for growing species that live in the sea, for example in the Mediterranean area, where the consumption of marine fish is traditional and of commercial relevance. Moreover, only salt or brackish water is available in some zones, as in Negev desert where Kotzen and Appelbaum [4] conducted a study on the aquaponic rearing of tilapia in brackish water.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Dicentrarchus labrax Meats and the Vegetable Quality of Beta vulgaris var. cicla Farmed in Freshwater and Saltwater Aquaponic Systems

Nozzi

Parisi

Crescenzo³

et al. 2016

Water

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Abstract:The purpose of this study is to exploit the euryhaline nature of commercially attractive species for their cultivation in freshwater aquaponic systems. This approach may increase the profitability of aquaponic production in coastal countries where the consumption of marine fish is traditional and of commercial relevance. For this purpose, juvenile European sea bass (Dicentrarchus labrax) were reared in an aquaponic freshwater (AFW) system and an aquaponic saltwater (ASW) system (salinity 20 ppt), in combination with chard (Beta vulgaris var. cicla) seedlings, a salt tolerant plant. At the end of the trial, nitrate and phosphate concentration in water significantly increased in the ASW system, suggesting that the ability of B. vulgaris to absorb these substances was limited by salinity. Total reflection X-ray fluorescence spectrometry revealed that the concentration of some oligoelements such as Fe remained lower with respect to the concentration in the freshwater hydroponic solution, in both AFW and ASW. FTIR-Fourier transform infrared spectroscopy on plants showed that growth at high salinity affected their lipid content. In the case of fish, freshwater had no effects on mono-and poly-unsaturated fatty acid profiles, although saturated fatty acids were significantly decreased in D. labrax reared in AFW. Our results demonstrates that it is possible to increase aquaponic profitability by farming D. labrax juveniles in an aquaponic freshwater system together with Beta vulgaris, obtaining good quality products.

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“…In aquaponics, Kotzen and Appelbaum [28] report poor coriander growth in an aquaponic system using fresh and brackish water in a floating bed technique system. However, in our case, in the COR treatment the cause of the poor plant growth was the disease which can be associated with a fungal infection by fungi of the genus Rhizoctonia or Pythium, as indicated by symptoms of poor growth, yellow leaves, and dark marks in the root [29,30].…”

Section: Fish and Plant Productionmentioning

confidence: 99%

“…A pH value of 8.5 can limit nutrient availability (N, Bo, Fe, Mn, Cu, and Zn) but does not inhibit it [10]. Pak choy showed no visual deficiency symptoms during the experiment, coriander showed yellowing of leaves, but this was associated with the root disease [28,30] and not with a direct nutrient deficiency.…”

Section: Water Quality Parametersmentioning

confidence: 99%

Evaluation of Biomass Yield and Water Treatment in Two Aquaponic Systems Using the Dynamic Root Floating Technique (DRF)

et al. 2015

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were measured in fish culture and hydroponic culture once a week at two times, morning (9:00 a.m.) and afternoon (3:00 p.m.). The fish biomass production was not different in any treatment (p > 0.05) and the total plant yield was greater (p < 0.05) in PAK than in COR. For the hydroponic culture in the a.m., the PO4 in PAK than in COR. The PAK treatment demonstrated higher food production and water treatment efficiency than the other two treatments.

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An Investigation of Aquaponics Using Brackish Water Resources in the Negev Desert

Cited by 33 publications

References 3 publications

Stochastic modelling of aquaponic production of tilapia (Oreochromis niloticus ) with lettuce (Lactuca sativa ) and cucumber (Cucumis sativus )

Stochastic modelling of aquaponic production of tilapia (Oreochromis niloticus ) with lettuce (Lactuca sativa ) and cucumber (Cucumis sativus )

Evaluation of Dicentrarchus labrax Meats and the Vegetable Quality of Beta vulgaris var. cicla Farmed in Freshwater and Saltwater Aquaponic Systems

Evaluation of Biomass Yield and Water Treatment in Two Aquaponic Systems Using the Dynamic Root Floating Technique (DRF)

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