National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Agricultural production systems are increasingly constrained by climate variability, rising input costs, soil degradation, and food safety concerns. This study evaluated a newly designed compact, modular aquaponics model developed for dual applicability in small-scale farming and household food production. The system was experimentally assessed over a 45-day production cycle using Oreochromis mossambicus and Spinacia oleracea. Daily monitoring (n = 45) demonstrated stable physicochemical conditions: temperature (25.05 ± 0.63°C), pH (6.90 ± 0.21), dissolved oxygen (5.01 ± 0.55 mg L?¹), and total dissolved solids (355.6 ± 26.4 ppm). Weekly nitrogen analysis (n = 8) confirmed efficient nitrification with progressive ammonia reduction (0.124 ± 0.044 ppm), controlled nitrite transition (0.313 ± 0.060 ppm), and nitrate stabilization (4.64 ± 0.78 ppm). No ammonia concentrations exceeded 0.25 ppm, indicating effective biofiltration and system buffering capacity. Fish growth performance showed an increase from 8.58 g to 31.5 g within 45 days, with an average daily gain of 0.51 g day?¹ and 100% survival at a stocking density of 3 kg m?³. A total spinach yield of 1960 g was obtained from a 10 sq ft vertical growing area (~2.1 kg m?²), achieved without chemical fertilizers or pesticides. Low standard deviation values across key parameters confirm operational stability and biological equilibrium. Compared to conventional backyard and commercial aquaponics models, the proposed system demonstrated improved spatial efficiency, reduced structural complexity, and enhanced adaptability for integrated livelihood and household food security applications. The findings indicate that the compact aquaponics model offers a statistically stable, climate-resilient, and economically adaptable production strategy capable of strengthening farmer livelihoods while ensuring chemical-free household food supply under conditions of agricultural uncertainty.
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